layer 2 user

Marconi 03PHA00008XDB-CUACopyright- Refer to title page Page 1 Issue: 01

THIS DOCUMENT IS UNCONTROLLED WHEN PRINTED

Table of Contents

Table of Contents ............................................................................1

List of Figures..................................................................................7

List of Tables ...................................................................................9

Chapter 1: Introduction.................................................................11

1.1 Introduction ............................................................................... 11

1.2 ELS-1000S Card Features......................................................... 12

1.2.1 ELS-1000S Card Key features ........................................................... 12

1.2.2 Supported Services: ........................................................................... 12

1.2.3 Ethernet Transport Products .............................................................. 12

1.2.4 Example of an SMA1/4C Shelf Equipped with an ELS-1000S Card.................................................................................................... 13

1.3 Supported Products .................................................................. 14

1.4 Supported Interfaces................................................................. 14

1.4.1 Support of SFP Modules .................................................................... 15

1.5 ELS-1000S Card Technical Specification ................................ 15

1.5.1 Connector Types ................................................................................ 15

1.5.2 Path Termination Capability ............................................................... 15

ELS-1000S

(Layer 2 Card)

User Manual Release 3.1.1

ELS-1000S Card User ManualRelease 3.1.1 Table of Contents


1.5.3 Ethernet Physical Port........................................................................ 16

1.5.3.1 Auto Negotiation.................................................................. 16

1.5.3.2 Auto-Negotiation Modes ..................................................... 16

1.5.4 Media Access Control (MAC) PAUSE (Flow Control) ........................ 16

1.5.5 Auto MDIX .......................................................................................... 16

1.6 Environment Safety Rules and Environmental Specifications ............................................................................ 17

Chapter 2: ELS-1000S Card Overview.........................................19

2.1 Introduction ............................................................................... 19

2.1.1 ELS-1000S Card Block Diagram........................................................ 19

2.1.2 Physical Interface ............................................................................... 20

2.1.3 Packet Switching Unit......................................................................... 20

2.1.4 VC Groups and SDH TC (Transport Channels) ................................. 21

2.1.5 Ethernet Services Supported ............................................................. 21

2.1.6 Service Level Agreement ................................................................... 21

2.1.7 Service Queues.................................................................................. 22

2.1.8 Service Queue Internal Tags/Scheduling........................................... 22

2.1.9 Framer Function ................................................................................. 23

2.1.10 System Adaptation Function .............................................................. 23

2.1.11 Ethernet Cross-Connections .............................................................. 23

2.2 ELS-1000S Card (Layer 2 Aggregation Card).......................... 24

2.3 ELS-1000S Card Indicators....................................................... 26

2.3.1 Type and Number of Ethernet Ports................................................... 26

2.3.2 ALS Test/Restart Push Button ........................................................... 27

2.3.2.1 ALS Test/Restart Button Operation .................................... 27

2.3.3 Concatenation .................................................................................... 27

2.3.4 Support of Concatenation................................................................... 28

2.3.5 Generic Framing Procedure (GFP) .................................................... 28

2.3.6 Link Capacity Adjustment Scheme (LCAS)........................................ 29

2.3.7 Supported Frame Structures .............................................................. 29



2.3.8 Jumbo Frames Mode ......................................................................... 29

2.4 Link Loss Forwarding (LLF) ..................................................... 29

2.5 Interfaces ................................................................................... 30

2.6 LCT Management....................................................................... 30

2.6.1 Card Based Domain ........................................................................... 30

2.6.2 SDH Traffic Domain............................................................................ 31

2.6.3 Ethernet Domain................................................................................. 31

2.6.4 Local Craft Terminal ........................................................................... 31

2.6.5 Hardware Specification ...................................................................... 31

2.6.6 Application Software........................................................................... 31

2.6.7 Operating System............................................................................... 31

2.7 Network Management ............................................................... 31

2.8 Equipping/Configuration Rules................................................ 32

2.8.1 General Equipping Information........................................................... 32

2.8.2 Equipping Rules for R1.2, Series 3 and Series 4............................... 33

2.8.3 Equipping Rules for UC & EX Family ................................................. 34

2.9 Equipping/Configuration Steps................................................ 35

2.10 ELS-1000S Card Saleable Entities ........................................... 35

2.10.1.1 ELS-1000S Card Ethernet Line/LAN Switch....................... 35

2.10.1.2 ELS-1000S Card Software Licence .................................... 35

2.11 Client Interfaces......................................................................... 36

2.12 Backup and LCT Software ........................................................ 36

2.13 Spares ........................................................................................ 36

2.14 Traffic Interfaces........................................................................ 37

2.14.1 Optical Ethernet (SFP Modules)......................................................... 37

2.14.2 ELS-1000S Card Client Interface SFPs ............................................. 37

2.14.3 Optical Ethernet (SFP Modules)......................................................... 37

2.14.3.1 FastE Optical....................................................................... 37

2.14.3.2 GigE Optical ........................................................................ 37



2.14.4 Electrical Ethernet (SFP Modules) ..................................................... 38

2.14.4.1 FastE Electrical ................................................................... 38

2.14.4.2 GigE Electrical..................................................................... 38

2.15 Mechanical Details .................................................................... 39

2.15.1 Mountings ........................................................................................... 39

2.15.2 ELS-1000S Card Dimensions ............................................................ 39

2.15.3 ELS-1000S Card Weight .................................................................... 39

2.15.4 ELS-1000S Card Power Consumption............................................... 39

2.15.5 ELS-1000S Card Reliability................................................................ 39

Chapter 3: ELS-1000S Card Applications ...................................41

3.1 Traditional Ethernet Private Line Operation ........................... 41

3.2 Multiple Ethernet Private Line .................................................. 41

3.3 Optimisation of the Network..................................................... 42

3.4 Ethernet Aggregation (SDH into Ethernet) .............................. 42

3.5 SDH Aggregation (SDH or Ethernet into SDH)........................ 43

3.6 SDH Link Aggregation with Remote Ethernet Port................. 44

3.7 Burst Compensation ................................................................. 45

3.8 Cascading of ELS-1000S Cards ............................................... 46

3.8.1 Ethernet Interface Cascade ............................................................. 46

3.8.2 SDH Transport Channel Cascade ................................................... 47

3.9 Link Loss Forwarding (LLF) ..................................................... 48

3.9.1 Failure of the SDH Path ..................................................................... 49

3.9.2 Failure of the Line Card Ingress Ethernet Connection....................... 49

Chapter 4: Protection....................................................................51

4.1 Introduction ............................................................................... 51

4.2 LCAS Based Protection ............................................................ 51

Chapter 5: Guidance on Network Configuration ........................53

5.1 Introduction ............................................................................... 53



Chapter 6: ELS-1000S Card Installation......................................59

6.1 Introduction ............................................................................... 59

6.1.1 Optical Safety ..................................................................................... 59

6.2 ELS-1000S Card Client Interface SFP (Small Form-Factor Pluggable) Optical Module ....................................................... 60

6.2.1 SFP Optical Module Replacement ..................................................... 60

Procedure ........................................................................................... 60

6.3 ELS-1000S Card Client Interface SFP (Small Form-Factor Pluggable) Electrical Module.................................................... 61

6.3.1 SFP Electrical Module replacement ................................................... 62

6.4 Preliminary ELS-1000S Card Checks....................................... 63

6.4.1 Visual Inspection ................................................................................ 63

6.4.2 Build Level Check............................................................................... 63

6.5 ALS Link Settings...................................................................... 64

6.5.1 Links LX30 Settings............................................................................ 66

6.6 ELS-1000S Card Installation in a SMA1/4c Sub rack.............. 66

6.6.1 Safety ................................................................................................. 66

6.6.2 Earthing/Grounding ............................................................................ 66

6.6.3 ELS-1000S Card Installation in a SMA1/4c Subrack ......................... 67

Procedure ........................................................................................... 67

6.6.4 To Remove ELS-1000S Card from a SMA1/4C Subrack .................. 69

Procedure ........................................................................................... 69

List of Abbreviations.....................................................................71

Glossary of Terms.........................................................................77



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ELS-1000S Card User ManualRelease 3.1.1 List of Figures


List of Figures

Figure 1-1: ELS-1000S Card (Layer 2 Aggregation card)........................................................... 11

Figure 1-2: SMA1/4C Equipped with an ELS-1000S Card.......................................................... 13

Figure 1-3: ELS-1000S Card Connector Types .......................................................................... 15

Figure 2-1: ELS-1000S Card (Layer 2 Aggregation Card) .......................................................... 19

Figure 2-2: ELS-1000S Card Block Diagram .............................................................................. 19

Figure 2-3: Packet Switching Function........................................................................................ 20

Figure 2-4: ELS-1000S Card Layout and Functionality............................................................... 24

Figure 2-5: ELS-1000S Card Front Fascia Layout...................................................................... 25

Figure 2-6: Marconi Optical SFP Module .................................................................................... 37

Figure 2-7: Electrical SFP Modules............................................................................................. 38

Figure 3-1: Data Transport Network using EPL Service Model .................................................. 41

Figure 3-2: Data Transport Network Using EPL Service Model.................................................. 42

Figure 3-3: Ethernet Link Aggregation ........................................................................................ 43

Figure 3-4: SDH Link Aggregation (and Layer 2 Blind Card Mode) ......................................... 44

Figure 3-5: SDH Link Aggregation with Remote Ethernet Interface ........................................... 45

Figure 3-6: Burst Compensation ................................................................................................. 45

Figure 3-7: Ethernet Interface Cascade ...................................................................................... 46

Figure 3-8: SDH Transport Channel Cascade ............................................................................ 47

Figure 3-9: Link Loss Forwarding................................................................................................ 48

Figure 3-10: LLF Occurrence ...................................................................................................... 49

Figure 6-1: SFP Optical Module .................................................................................................. 60

Figure 6-2: SFP Optical Module Removal/Insertion.................................................................... 61

Figure 6-3: SFP Electrical Module............................................................................................... 61

Figure 6-4: SFP Electrical Module Removal/Insertion ................................................................ 62

Figure 6-5: ELS-1000S Card labels Identification ....................................................................... 63

Figure 6-6: ELS-1000S Card ALS Links and Links X30 Location............................................... 65

Figure 6-7: ELS-1000S Card Inserted in SMA1/4C Subrack ...................................................... 67

ELS-1000S Card User ManualRelease 3.1.1 List of Figures


Figure 6-8: ELS-1000S Card fully Installed in to SMA1/4C Subrack .......................................... 68

Figure 6-9: Cables Connected to the SFP Modules.................................................................... 68

ELS-1000S Card User ManualRelease 3.1.1 List of Tables


List of Tables

Table 1-1: Products that Support the ELS-1000S Card .............................................................. 14

Table 1-2: Supported Ethernet Interfaces ................................................................................... 14

Table 1-3: Backplane Capacity ................................................................................................... 15

Table 2-1: ELS-1000S Card Indicators ....................................................................................... 26

Table 2-2: Number of Ports Per Card.......................................................................................... 27

Table 2-3: ALS Button Action/Function ....................................................................................... 27

Table 2-4: Supported Concatenation Schemes .......................................................................... 28

Table 2-5: ELS-1000S Card Possible Frame Length Setups...................................................... 29

Table 2-6: Supported Ethernet Application Codes...................................................................... 30

Table 2-7: Type of Supported Ethernet Application Codes......................................................... 30

Table -2-8: Equipping Rules for R1.2, Series 3 and Series 4 ..................................................... 33

Table 2-9: Equipping Rules for UC & EX family .......................................................................... 34

Table 2-10: ELS-1000S Card Ethernet Line/LAN Switch............................................................ 35

Table 2-11: ELS-1000S Card Software Licence ......................................................................... 35

Table 2-12: ELS-1000S Card PacketSpan R3.1.1 Rev 2 platforms ........................................... 36

Table 2-13: ELS-1000S Card Common Saleable Entities .......................................................... 36

Table 2-14: ELS-1000S Card Dimensions .................................................................................. 39

Table 2-15: ELS-1000S Card Weight.......................................................................................... 39

Table 2-16: ELS-1000S Card Power Consumption .................................................................... 39

Table 2-17: ELS-1000S Card Reliability...................................................................................... 39

Table 5-1: Guidance on Network Configuration .......................................................................... 53

Table 6-1: ELS-1000S Card ALS Link Settings .......................................................................... 64

Table 6-2: ELS-1000S Card ALS Link Setting functions............................................................. 64

ELS-1000S Card User ManualRelease 3.1.1 List of Tables


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ELS-1000S Card User ManualRelease 3.1.1 Introduction


Chapter 1: Introduction

1.1 Introduction This manual describes the functionality of the ELS-1000S Card (Layer 2 Aggregation card) as used in SMA Release 1.2, Series 3, Series 4, Ultra Compact (UC) and EX families of SMA products. As the ELS-1000S card installation procedures are similar for individual equipment, only SMA1/4C Subrack is used in this manual to illustrate the installation procedures. For further information on individual SMA products refer to the dedicated equipment manual available from Marconi.

Increasing demand for Ethernet traffic over SDH networks means that bandwidth needs to be optimised, by introducing methods to align the network transport bandwidth to the real data speed in the Ethernet network. Using new traffic combination techniques in conjunction with new SDH mapping and capacity adjustment standards, an Operator can significantly reduce the required SDH bandwidth whilst simultaneously increasing the data transport capability. Single lines can be combined in to aggregated virtual lines, reducing the number of switch/router ports and therefore cost of ancillary equipment. The physical presentation of data can be made more efficient by feeding multiple low capacity connections (10Mbit/s-100Mbit/s) in to a single Gigabit Ethernet signal.

Figure 1-1 illustrates the ELS-1000S card (Layer 2 Aggregation card) as used in the SMA range of products.

Figure 1-1: ELS-1000S Card (Layer 2 Aggregation card)



1.2 ELS-1000S Card Features Ethernet over SDH Mapper cards such as PacketSpan exhibits a 1:1 relationship between an Ethernet port and an SDH VC group. The ELS-1000S card supports this mapping mode as well as aggregation of Ethernet connections. For example, transfer of Ethernet traffic from multiple Ethernet ports in to a single SDH VC group or transfer of Ethernet traffic from multiple SDH VC groups in to a single Ethernet port.

1.2.1 ELS-1000S Card Key features

Aggregation of Ethernet over SDH links (Twenty four SDH VCs or VC Groups)

Two GigE Ethernet interfaces (SFP modules at the front)

Four FastE Ethernet interfaces (SFP modules at the front)

VLAN tagging

n x VC-12, 3,4 mapping

GFP

LCAS

Traffic Management

1.2.2 Supported Services:

Ethernet Private Line (EPL)

Ethernet Virtual Private Line (EVPL), are supported between any interfaces

1.2.3 Ethernet Transport Products

Marconi has a range of Ethernet transport products available in the PacketSpan range, providing point-to-point transport of Ethernet frames across the SDH network supporting 10Mbit/s, 100Mbit/s and 1000Mbit/s Ethernet interfaces on SDH tributary cards. These products exhibit the following benefits:

Wire speed Ethernet frame throughput

Six Ethernet ports are possible (4xFE & 2xGE)

Flexible SDH capacity allocation into VC-12, VC-3, VC-4, and virtual concatenation (VC-12-nv, VC-3-nv, VC-4-nv.

GFP-F mapping of Ethernet into SDH

In service re-sizing of virtual concatenated SDH VC groups carrying SDH traffic using LCAS



Aggregation of physical available streams into virtual flows for optimising the number of used Ethernet ports and optimisation of used transport bandwidth.

Based on all demands Marconi has available a range of cards for its SDH platforms. The aggregation and switching functionality is available for the full SDH product range.

There are two major service categories for packet transport across SDH networks, both of which are supported by the ELS-1000S Card.

Layer 2 Transport is the connection-oriented mechanism to transport data packets as private lines transparently through an SDH network. Connections are either physically separated with a one to one relationship between physical input and output ports over a dedicated SDH VC (EPL), or input and outputs ports are shared so that aggregation of transport channels occurs (EVPL).

The performance of high quality data networks for business applications is very important and performance management is essential. Marconi is providing SDH performance management according to ITU-T G. 826 and 829 and data performance management.

1.2.4 Example of an SMA1/4C Shelf Equipped with an ELS-1000S Card

ELS-1000S Card is used in SMA Release 1.2, Series 3, Series 4, Ultra Compact (UC) and EX families of SMA products. Figure 1-2 illustrates an example of a SMA1/4C shelf equipped with ELS-1000S Card.

Figure 1-2: SMA1/4C Equipped with an ELS-1000S Card

Integrated network management control is achieved by management systems to enable interworking in different existing network management environments.

ELS-1000S card (Layer 2 Aggregation Card)



1.3 Supported Products The following product description gives an overview into the main functionality of the ELS-1000S card that is available for the products below:

Table 1-1: Products that Support the ELS-1000S Card Product Short explanation

Ultra Compact (UC) and EX Family

SMA1/4UC Premises/small Multi Service edge node STM-1/STM-4

SMA1/4EX Full capacity Multi Service Network edge node STM-1/STM-4

SMA16UC Customer premises/small Multi Service edge node STM-4 upgradeable to STM-16

SMA16EX Full capacity Multi Service Network edge node STM-4 upgradeable to STM-16

Series 4 Family

SMA1/4C STM-1 to STM-4 ADM

SMA1/4 STM-1 to STM-4 ADM

SMA1/4E STM-1 to STM-4 ADM Series 3 Family

SMA1/4C+ STM-1 to STM-4 ADM

SMA4/16C STM-4 to STM-16 ADM

SMA4/16C/C+ STM-4 to STM-16 ADM

SMA16 STM-16 ADM SMA Release 1.2

SMA Release 1.2 STM-1 to STM-4 ADM

SMA Release 1.2 STM-4 to STM-16 ADM

1.4 Supported Interfaces The ELS-1000S card provides and supports the following interfaces:

Two GigE Ethernet interfaces (SFP modules at the front)

Four FastE Ethernet interfaces (SFP modules at the front)

SDH (Backplane up to 622 Mbit/s)

The ELS-1000S card handles the following external Ethernet interfaces:

Table 1-2: Supported Ethernet Interfaces Interface Type Client Data Rate [Mbit/s]

Ethernet 10

Fast Ethernet 100

Gigabit Ethernet 1000



1.4.1 Support of SFP Modules

The ELS-1000S card delivers flexible interface ports based on optical/electrical interface modules. This is achieved by using Small Form factor Pluggable (SFP) modules for bit-rates of 100 Mbit/s as well as 1 Gbit/s. Therefore the network provider needs only one type of card for all of the application codes supported.

1.5 ELS-1000S Card Technical Specification

1.5.1 Connector Types Port Connector Type

Electrical ports RJ-45 connector

Optical ports LC/PC connector

Figure 1-3: ELS-1000S Card Connector Types

1.5.2 Path Termination Capability

Maximum Path Termination Capability is 4 x STM-1 (622 Mbit/s). The number of VCs is set by the SDH slot capacity.

Table 1-3: Backplane Capacity SMA Type Maximum Backplane Capacity usable by

ELS-1000S Card VC-12 VC-3 VC-4

SMA1/4/16UC/EX From 1 x STM-1 up to 4 x STM-1 252 12 4

SMA R1.2 / S3 / S4 From 1 x STM-1 up to 4 x STM-1 252 12 4

SMA1 From 1 x STM-1 up to 1 x STM-1 63 3 1



SMA16 C+ From 1 x STM-1 up to 1 x STM-1 63 3 1

RJ 45 Connectors

LC/PC Connectors



1.5.3 Ethernet Physical Port

1.5.3.1 Auto Negotiation

Auto Negotiation is a function of the Ethernet PHY layer and provides means for an automatic adaptation of the most important physical layer functions between two stations:

It is supported for electrical 10M/100M/1000M Ethernet as well as for optical 1000M Ethernet.

The following parameters are negotiated:

Speed

Duplex Mode

MAC PAUSE

Capabilities in an asymmetric.

1.5.3.2 Auto-Negotiation Modes

Auto negotiation modes are "enabled" and "disabled". If "enabled" the capabilities of a port are advertised to the remote end (which advertises its capabilities to the local end). If "disabled" a fixed setting is done which cannot be negotiated. Configured per port (on/off).

Functionality

On electrical media using UTP cabling, the auto-negotiation information is encoded into bursts of short pulses, so-called Fast Link Pulse (FLP) bursts. Information is extracted from the bursts and provided to management software.

On optical Gigabit Ethernet media, the auto-negotiation information is exchanged using special code words with the 8B/10B symbol range.

1.5.4 Media Access Control (MAC) PAUSE (Flow Control)

Media Access Control (MAC) PAUSE function is supported (initiation acc. to IEEE 802.3), in asymmetric fashion such that the attached device can be requested to pause, but pause requests by the attached device are not accepted. PAUSE is provisionably on a per port basis. This includes programmable buffer thresholds. Flow Control can be provisioned on a per port base in EPL mode without Link Aggregation.

1.5.5 Auto MDIX

Auto MDIX (Media Dependent Interface Crossover) ensures proper working of the Ethernet link if the Receiver and Transmitter cables have been interchanged. Auto MDIX is supported on all electrical Ethernet Ports.



1.6 Environment Safety Rules and Environmental Specifications The safety rules and environmental specifications are associated with the dedicated product in to which the card is inserted.

In general ELS-1000S card delivers:

Optical Safety: as per other Marconi optical products, in the case of a fibre break an automatic laser shutdown (ALS) is supported to avoid any danger caused by emission of laser light. The procedure for automatic laser shutdown and restart is based on ITU-T G.958, G.664, G.681 and IEC/EN60825-1, -2.

Electrical safety is according to IEC 60 950-1.

Environmental conditions are according to ETS 300 386-1.



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ELS-1000S Card User ManualRelease 3.1.1 ELS-1000S Card Overview


Chapter 2: ELS-1000S Card Overview

2.1 Introduction This chapter describes the functionality of the ELS-1000S card (Layer 2 Aggregation card) as shown in Figure 2-1.

Figure 2-1: ELS-1000S Card (Layer 2 Aggregation Card)

2.1.1 ELS-1000S Card Block Diagram

The following block diagram shows the main functional blocks of the ELS-1000S card and associated interworking between them.

Figure 2-2: ELS-1000S Card Block Diagram

DCN

Media Dependent Interface

(MDI)

Media Independent

Interface (MII)

PHY (MAU)

Media Access Control (MAC)

Packet Switching

Unit Framing (FRM)

Virtual Concatenation

VCAT

Link Capacity

Adjustment LCAS

BackplaneInterface

Management Plane Management Plane

SDH Switch

SDH Line IF

SDH STM-n

Interface

SDH part ELS-1000S

SDH Line IF

10/100M

1000M

Interface Ports



2.1.2 Physical Interface

As illustrated in Figure 2-1 the ELS-1000S Card offers Electrical SFP and Optical cages on the front panel. These can alternatively be equipped with either a RJ-45 electrical SFP module or an optical SFP module.

2.1.3 Packet Switching Unit

The Packet Switching Unit is the heart of the ELS-1000S card and maps the incoming virtual packet link (Ethernet flow) to an outgoing virtual packet link (Ethernet flow).

The Packet Switching Unit supports any kind of connectivity between flows. A flow can enter and exit the unit at any kind of interface (VCG and/or Ethernet port). Multiple flows can run across the same interface. It is possible to connect a VCG to a second one, an external port with a second one as well as any mixture. Figure 2-3 shows logical configuration options.

The packets coming from the PSF to be transported on the SDH payload are framed using the GFP (Generic Framing Procedure). The VCGs are then mapped into one of the 24 SDH TC (SDH transport Channels).

Note: Only two physical Gigabit Ethernet interfaces and four Fast Ethernet interfaces are available see Figure 2-4.

Figure 2-3: Packet Switching Function

1 GIGABIT

ETHERNET

FAST

ETHERNET

ELS1000S

VC Groups

1

2

2

3

3

4

4

5

5

SDHVC-4/3/12-nvSwitch Matrix

66

VC-4/3/12-nvFramer

11

11

22

22

Flows

55

55

Within the ELS-1000S card there are two types of interfaces associated with Ethernet flows:

Physical the actual Ethernet ports

Virtual the VCG groups and associated SDH TC (transport channels)



Note: In the SMA1/4UC fitted with an ELS-1000S card, there are built into the card 24 virtual VCG/SDH TC pairs to be used for aggregation of Ethernet flows within the Ethernet domain.

The user can add suitable VCs to a particular VCG and can make Ethernet Connections) by cross connections between any of the designated interfaces, physical or virtual.

2.1.4 VC Groups and SDH TC (Transport Channels)

Virtual Containers are managed in the SDH domain, however the allocation of a VC-n to a VCG (Virtual Container Group containing VC-n) is within the responsibility of the embedded data domain. A VC-n is added to a VCG by creating an entry in the VC Table.

Under the functionality of the Java LCT for the ELS-1000S the VCGs/SDH TC already exist and cannot be created or deleted. An individual VCG may exist, but may not have a VC-n associated with it

VCGs can be provisioned with or without LCAS, however without LCAS there is no automatic adjustment in bandwidth, so in the event of failure of a member of a VCG, the whole VCG fails.

Note: Each VC Group has a unique identifier that cannot be replicated.

2.1.5 Ethernet Services Supported

Release 3.1.1 supports these services:

Ethernet Private Line (EPL)

Ethernet Private Line with Multiplex Function (M-EPL)

Ethernet Virtual Private Line (EVPL)

2.1.6 Service Level Agreement

The ELS-1000S card enables the implementation of multiple Ethernet applications across the SDH transport domain, shared by a possible multiplicity of clients at certain agreed bandwidths and class of service. Typical parameters concerning bandwidth are:

CIR (Committed Information Rate)

PIR (Peak Interface Rate)

CBS (Committed Burst Size)

PBS (Peak Burst Size)

This Service Level Agreement function enables the policing of traffic which belongs to a single flow of Ethernet packets i.e. a VPC (Virtual Packet Channel), on a per Ethernet packet flow basis by the creation of a Service Level Agreement to monitor the behaviour of a VPC.



Additionally, it is possible to police the traffic of multiple VPCs by a single Service Level Agreement instance. Defining whether a VPC is policed by a dedicated ID or a Service Level Agreement is shared by multiple VPCs is carried out by specifying a Service Level Agreement ID. To let a Service Level Agreement function only the traffic from a single VPC, there must be no other VPCI with the same ID amongst all the VPCI of the card. To enable a Service Level Agreement function the traffic from multiple VPCs, all VPCIs must be configured with the same value of Service Level Agreement ID.

2.1.7 Service Queues

Queues can be used to buffer/discard traffic in case of traffic congestion. Traffic congestion can arise when traffic with best effort components is configured, i.e. traffic with rates above the committed rate. Traffic congestion can also occur when failures in the network reduce the capacity of a link, e.g., failure of some VCs in an LCAS VCG.

This service queue function enables traffic belonging to a single flow of Ethernet packets to be queued for the better working and efficiency of the functionality provided by the card i.e. a VPC, on a per Ethernet packet flow basis.

In addition, it is possible to queue the traffic of multiple VPCs by a single queuing instance. Defining whether a VPC is queued by a dedicated queue or a queue is shared by multiple VPCs is carried out by specifying a value for the queue ID. To enable a queue to queue only the traffic from a single VPC, there must be no other VPCI with the same ID among all VPCIs which are allocated on an interface. To enable a queue to queue the traffic from multiple VPCs, all VPCIs must be configured with the same ID value.

Note: It is not possible to assign the same queue ID value to VPCIs which are allocated on different interfaces.

A traffic queue is associated with an interface (either Ethernet port, or SDH TC). Depending on the scheduling type parameter selected, single or multiple traffic queues can be allocated on an interface.

There are two types of queue available, namely:

WRED (Weighted Random Early Discard)

Weighted Tail-Drop.

Note: Prior to release 3.1.1 it is not possible to have multiple queues per interface. There is a single queue per interface and all traffic over this interface passes through this queue.

2.1.8 Service Queue Internal Tags/Scheduling

These internal tags and scheduling parameters are the mechanism by which the Service Level Agreement requirements are implemented for a particular queue instance.

Token Bucket/Colour/Colour Awareness: In order to police the traffic, a two token three colour marker scheme is used: There are two tokens

CIR token

PIR token



And there are three internal discard tags:

Green (Discard tag = 0)

Yellow (Discard tag = 1)

Red (Discard tag = 2)

2.1.9 Framer Function

The framer functionality is responsible for framing the packets coming from the Packet Switching Function to be transported on the SDH payload according to GFP-F framing rules. The framer output is loaded in to a single or concatenated VCs. The ELS-1000S card supports virtual concatenated VCs according to ITU-T G.707.

2.1.10 System Adaptation Function

Due to different system structures in the SMA families of equipment, the backplane interface has been introduced to connect the generic Layer 2 design to the dedicated internal signals, busses and software functions of the different target products.

2.1.11 Ethernet Cross-Connections

The use of the term Ethernet Cross-Connection, in this context is not to be confused with the making of an SDH cross- connection. You implement an SDH cross-connection from the Connections item on the ELS100S card pop-up menu.

The ELS-1000S PSF (Packet Switching Function) allows the flexible cross-connection between flows of packets from one interface towards another interface.

An interface in this context can be:

Physical Interface

SDH TC (SDH Transport Channel)

A flow of packets on an interface belongs to a VPC (Virtual Packet Channel) and on the interface; a flow of packets is identified by a VPCI (Virtual Packet Channel Identifier). A VPC is an end-to-end packet flow and may span across multiple L2Cs SDH cross-connects, mapper cards or even third party equipment.

The segment of a VPC between two PSFs (Packet Switching Functions) is called a Virtual Packet Link (VPL).

The PSF establishes a flexible association between a Flow Point (identified by a VPCI) on one interface towards another Flow Point (identified by a VPCI) on a second interface). The term cross-connection is used here to refer to this flexible association. Additionally, to realise of point-to-point cross-connections, the PSF also supports the creation of point-to-multipoint, multipoint-to-point and multipoint-to-multipoint cross-connections.



VPCIs need not be unique across all interfaces. The same VPCI value and type can be used on different interfaces therefore, in order to unambiguously identify a cross-connection, it is required to specify the endpoints of a cross-connection using two pairs of data. Each pair consists of interface identification and a VPCI, which is associated with this interface.

Cross-connections can be grouped together. A point-to-point cross-connection, either uni-directional or bi-directional, gets a tag, which indicates, this cross-connection as belonging to a particular group. All point-to-point cross-connections within a group have the same group ID.

2.2 ELS-1000S Card (Layer 2 Aggregation Card) The ELS-1000S card is a Layer 2 tributary card for the SMA range of products. Figure 2-4 represents the ELS-1000S (Layer 2 Aggregation Card) layout and functionality. An ELS-1000S card can be ordered under saleable entity SP58A and is used so that the Network Operator can address LAN interconnectivity with a range of service offerings to suit their customers WAN connections. The ELS-1000S card offers Layer-2 aggregation via the following interfaces: -

Two x GigE interfaces (two x lowest SFP modules at the front and can be either electrical/optical).

Four x Fast Ethernet interfaces (four x upper SFP modules at the front and can be either electrical/optical).

SDH (Backplane up to STM-4 (622 Mbit/s), depending on shelf variant.

Figure 2-4: ELS-1000S Card Layout and Functionality

Host CPU

Mapper Ethernet SDH622 Mbit/s24 SDH VCGs, H/O, L/OVirtual Concatenation, LCASMapping GFP/LAPS

Links X30 (Remove theselinks in Shelf SMA4 R1.2)

Backplane Interface

Packet Switching Engine

ALS Link Settings

SFP Modules 4x Fast Ethernet Ports

SFP Modules 2x Gigabit Ethernet Ports



Figure 2-5: ELS-1000S Card Front Fascia Layout

Alarm LED (Red)

IN TFC LED (Amber) In Traffic

ALS LED (Automatic Laser Shutdown) Amber. One per Port

Flashing Green = Receive or Transmit Activity OFF-steady = link down ON-steady (Green) = link up

Electrical/Optical SFP 6 Ports

RJ45 Electrical SFP

Fast E (0-11dB) Optical SFP Module

1000 Base SX Optical SFP Module

ALS Test/Restart Push Button

Card Ejector

Card Ejector



2.3 ELS-1000S Card Indicators The ELS-1000S card has the following LEDs on the front fascia. Table 2-1 shows the function and the status of each LED.

Table 2-1: ELS-1000S Card Indicators LED Operation LED Status

Normal OFF ALM (Alarm Indication)

Alarm Indication RED

Card not commissioned in shelf configuration

Off

Card commissioned in shelf configuration, but card offline

Quick flashing

- Software Download

- Align Banks

- Access to Non Volatile Database (e.g. after data domain configuration)

- Note: Do not reset or power down card when LED flashes.

Slow flashing

IN TFC (In Traffic)

Card online On

Normal OFF ALS (Automatic Laser Shutdown) One LED for each FastE and GigE Port

ALS operational AMBER ON

Link up GREEN ON Link down OFF

LINK/TXRX

(Link/ Transmit Receive) One LED for each FastE and GigE Port

Receive or Transmit Activity GREEN flashing

2.3.1 Type and Number of Ethernet Ports

The ELS-1000S card has six Ethernet ports on the front fascia.

Two x GigE interfaces (Two lowest SFP modules at the front and can be either electrical/optical).

Four x Fast Ethernet interfaces (Four upper SFP modules at the front and can be either electrical/optical).

The connection to external equipment (like an external router) by industry standard Ethernet interfaces via a connector at the front of the equipment. The data flow from Ethernet port is policed, labelled/unlabeled and leaves the card by a SDH port (VCG) or by a second Ethernet port.

ELS-1000S offers SFP cages, which can be equipped with either an electrical SFP module or an optical SFP module. Additionally each port can support different application codes based on the SFP module used. The SFP devices are plugged into the front side of the card.



Table 2-2: Number of Ports Per Card Ethernet Ports SDH Ports

ELS-1000S Card Type

FastE at LTU FastE Available on front Fascia

GigE At LTU

GigE Available on front

Fascia

VC-x-nv

SP58A for

SMA R1.2/S3/S4/UC

N/A 4 x SFP (optical or electrical)

N/A 2 x SFP (optical or electrical)

24

Note: The number of usable ports may be lower, depending on the traffic flow configuration on the card

2.3.2 ALS Test/Restart Push Button

This button tests and restarts the laser action on the unused Ethernet ports. This does not affect the Ethernet ports, which are carrying traffic.

2.3.2.1 ALS Test/Restart Button Operation

The single ALS test/restart button triggers two functions of all ALS controllers on the board.

Pressing the ALS test/restart button for between one to five seconds enables the "Manual restart" function. The TX pulse is triggered when the ALS test/restart button is released see Table 2-3.

Pressing the ALS test/restart button for more than 12 seconds enables the "Manual restart for test" function. The test pulse is triggered if the button is held pressed down for more than 12 seconds. Having initiated one of these functions, the ALS test/restart button function is disabled for 100 seconds. TX pulse is triggered when the ALS test/restart button is released see Table 2-3.

Table 2-3: ALS Button Action/Function

ALS Button Action ALS Button Function Pressing the ALS button for less than 1 second ALS test/restart button function is disabled Pressing the ALS button between 1 to 5 seconds Manual restart for test triggered by button pressed for

more than 23 seconds Pressing the ALS button between 5 to 12 seconds ALS test/restart button function is disabled Pressing the ALS button for more than 12 seconds Manual restart for test triggered by button press (no

button release necessary)

2.3.3 Concatenation

The ELS-1000S card supports Virtual Concatenation according to ITU-T G.707. For each SDH port of an ELS-1000S Card, the type of concatenation can be selected independent to the others. Depending on the selection the maximum transfer rate to SDH is different. The payload of a VCG VC-x-nv is simply x times the payload of the individual VC-x. The following are examples of VC-12, VC-3 and VC-4 concatenation types.



VC-12-nv: Incoming data can be mapped into a VC-12 virtual concatenation group with different n to adjust allocated SDH payload with a small granularity. Any VC-12 offers 2,176 Mbit/s payload capacity. VC-12 concatenation is appropriate for mapping of 10 Mbit/s as well as for 100 Mbit/s.

10 Mbit/s Ethernet flow into VC-12-5v



Note: VC-12-64v does not carry full 1000Mbit/s.

VC-3-nv: Incoming data can be mapped into a VC-3 virtual concatenation group with different n to adjust allocated SDH payload with a medium granularity. Any VC-3 offers 48,384 Mbit/s payload capacity. VC-3 concatenation is appropriate for mapping 100Mbit/sEthernet, but is also supported for 1000 Mbit/s Ethernet flows. The following mappings are possible.

10 Mbit/s Ethernet flow into VC-3

100 Mbit/sEthernet flow into VC-3-3v


VC-4-nv: Incoming data can be mapped in to a VC-4 virtual concatenation group with different n to adjust allocated SDH payload with a large granularity. Any VC-4 offers 149,760 Mbit/s payload capacity. VC-4 concatenation is appropriate for mapping 100 Mbit/s Ethernet or 1000 Mbit/s Ethernet flows. The following mappings are possible.

10 Mbit/sEthernet flow into VC-4

100 Mbit/sEthernet flow into VC-4


2.3.4 Support of Concatenation

Table 2-4: Supported Concatenation Schemes ELS-1000S Card Type VC-12-nv VC-3-nv VC-4-nv VC-4-16c SMA1/4/16EX Yes Yes Yes N/A

SMA R1.2 / S3 / S4 Yes Yes Yes N/A

2.3.5 Generic Framing Procedure (GFP)

The ELS 1000S Card provides transport of Ethernet frames over SDH. For efficient mapping an encapsulation protocol of Ethernet over SDH is required. This provides a generic mechanism to adapt traffic from customer Ethernet sources into SDH VC groups. A client frame is received by cutting inter-frame gap and preamble and then mapped in its entirety into a variable length GFP frame that is sized according to the length of client frame.



2.3.6 Link Capacity Adjustment Scheme (LCAS)

LCAS in the virtual concatenation source and sink adaptation function provides a control mechanism to increase or decrease capacity of virtual concatenated VC-groups. This optimises the used bandwidth to suit the changing needs of the applications. Additionally it provides protection capabilities without the need for full-featured SNCP. This is achieved by temporarily removing network links from the data flow in case of network errors.

2.3.7 Supported Frame Structures

The ELS-1000S card is able to transfer frame lengths beyond those quoted by the IEEE Ethernet standard 802.3. The ELS-1000S card can support frame length up to 1600 bytes including VLANs.

2.3.8 Jumbo Frames Mode

When the ELS-1000S card is in a jumbo frame mode of operation it can support Ethernet frames with a length up to 5000 bytes on a reduced number of interfaces. Bringing the card into jumbo frame mode causes a default database to be loaded, followed by a reset of the card. As this causes the loss of any previously existing configuration, a warning to this effect is displayed before the command to set the card into jumbo mode is sent to the card. This also applies if you want to switch from jumbo frame mode to non-jumbo frame mode.

Table 2-5 shows the details of the possible frame length setups of the card. The switch between Setup 1 and Setup 2 is controlled by the LCT during commissioning of the ELS-1000S card.

Table 2-5: ELS-1000S Card Possible Frame Length Setups

Setup Description VCG Type # Of VCGs Maximum MTU Size

[Bytes]

1 Non-jumbo mode Non-Jumbo 24 1600

2 Non-Jumbo 4 1600

Jumbo5000-mixed mode

Jumbo 2 5000

Note: Switching between these two modes requires a reset of the card and leads to a loss of the connection database.

2.4 Link Loss Forwarding (LLF) Link loss can occur on the failure of the equipment or port attached to the ingress of the link (incoming Ethernet signal failure), failure of the cable/fibre forming the link, or failure of an NTE or element within the link. At the egress point, the link loss earlier in the path can be indicated to a destination device in a variety of ways, including laser shutdown of optical ports. The key benefit of LLF is that when an Ethernet link fails, the link loss can be detected very quickly (ideally in the order of milliseconds) by the destination device attached to the egress of the link, causing some protection action to occur in the destination device (such as switchover to a protection path).



2.5 Interfaces The ELS-1000S card provides external interfaces according to interface specifications IEEE 802.3.The number of interfaces varies on each of the products as a mix of optical and copper interfaces are possible. The provided connectors of the SFP modules are RJ45 for copper and LC/PC for optical fibres Table 2-6 lists supported application codes.

Table 2-6: Supported Ethernet Application Codes 10BASE- 100BASE 1000BASE

Application Codes T TX, FX, LX 10, PR 1) T, SX, LX/LX10, ZX

Note: 1) means proprietary solution for Ethernet Port Extension EPE.

Each port independently presents an Optical and Electrical Ethernet interface as in Table 2-7.

Table 2-7: Type of Supported Ethernet Application Codes Application Code Cabling Range

10BASE-T Two pairs of 100Ohm Category 3 or better UTP cable 100m

100BASE-TX Two pairs of 100Ohm Category 5 UTP cable 100m

100BASE-FX Wavelength (1310nm, LED) devices, 50/125um multi-mode fibre 2Km

100BASE-LX10 Wavelength (1310nm) devices, single mode fibre 10km

100BASE-PR1 (Proprietary)

Wavelength (1300nm), single mode fibre, FastE (0-11dB) 20km

100BASE-PR2 (Proprietary)

Wavelength (1300nm), single mode fibre, FastE (10-26dB). 10km-45km

1000BASE-T Four pairs of 100Ohm Category 5 or better UTP cable 100m

1000BASE-SX Wavelength (850nm) devices, 50/125um multi-mode fibre 550m

1000BASE-LX Wavelength (1300nm) devices, 50/125um multi-mode fibre

9/125 um single-mode fibre

It is supported within the extended scope of 1000BASE-LX10.

550m

5km

1000BASE-LX10 Wavelength (1300nm) devices, 50/125um multi-mode fibre

9/125 um single-mode fibre

550m

10km

1000BASE-ZX Wavelength (1550nm) devices, single-mode fibre giving a budget 5-20dB and maximum chromatic dispersion 1600ps/nm, de facto standard

70-80 km

2.6 LCT Management Local control is provided by an F interface to a PC based Local Craft Terminal. The NE cards Configurations/Fault/Performance/Commissioning, etc is managed by the Local Terminal and/or via the Element Manager. The NMS and the LCT manage all functionality of the card i.e. SDH and Ethernet information.

2.6.1 Card Based Domain

Functions of the card-based domain encompass configuration and alarms for basic hardware/software operations and maintenance, such as card initialisation, identity and faults and embedded software management.



2.6.2 SDH Traffic Domain

The SDH domain handles the generation/termination of a SDH container, choosing between VC-12, VC-3, and VC-4. The SDH domain is compliant to the relevant standards (G.783 Jan 2001 and DEN/TM-01015-9-1 draft V0.0.3 10/2000), offering the same functionality as used for VC generation/termination in other cards in optical network products.

2.6.3 Ethernet Domain

Functions of the Ethernet domain encompass the configuration, operation, management of VCAT (VC-x-nv)/LCAS, performance monitoring and alarms for the Ethernet packet-processing functions of the card, including the Packet switching function.

2.6.4 Local Craft Terminal

The Local Craft Terminal provides all the functions necessary to locally configure, control and monitor each ELS-1000S Card. The Local Terminal comprises application software running on a compatible PC interfacing to the equipment via a serial cable. The user performs operations on the apparatus via the keyboard or mouse.

2.6.5 Hardware Specification

The minimum specification of the PC required to run the local terminal applications is contained in the procurement specification for the Local Terminal.

2.6.6 Application Software

The Local Terminal Software is executed from the hard drive on the PC to provide the Local Terminal functions. The program and data contained on the CD-ROM must be installed onto the hard drive of the PC. All files on the CD-ROM must be copied to the PCs internal hard drive.

2.6.7 Operating System

The Operating System required for use with the Local Terminal released software is Windows 2000 or Windows XP.

2.7 Network Management Integrated network management control is achieved by

Service On Optical (MV36/MV38) with Advantage Module Client Circuit Centre (CCC).

The management system provides a comprehensive range of: -

Fault management

Performance management and monitoring

Configuration management



Interactive operator control is provided for

Network element commissioning

Connectivity management

Maintenance and diagnostics.

The Client Circuit Centre (CCC) allows maintenance of Circuit information for PacketSpan and Gigabit Ethernet circuits and UI access into MV36 and MV38 for the associated SDH bearer and data configuration. This facility can be installed on a MV38, MV36 or a standalone platform. If installing the Client Circuit Centre on a standalone platform, then a standard MV38 or MV36 platform must be used.

2.8 Equipping/Configuration Rules The equipping rules for ELS-1000S are variable due to the different traffic bandwidths, tributary management characteristics, power supply systems and environmental characteristics of the different SMA products. These rules are described in the following sections 2.8.1 to 2.8.3.

2.8.1 General Equipping Information

All SMA products permit only four system cards to be equipped in any network element. A system card is defined as being a Cell Span, Combiner, ELS-1000S, ETA-100 or ETO-100 card.

ELS-1000S cards can support traffic bandwidths of up to 4xVC-4 (in steps of 1xVC-4) to the SMA switch. However, the bandwidth supported by the tributary slot depends on both the SMA product type and the specific tributary slot within the SMA element.

A maximum, total data tributary bandwidth can be supported by any SMA product. This varies according to the SMA product type and release. For the purpose of this rule, data refers to any traffic generated by an ELS-1000S, ETA-100 or ETO-100 card.

There is no differentiation between EM-OS and MV36 management, because the data domain of the ELS-1000S is only supported by MV36. The SDH domain may or may not be managed using EM-OS. Hence MV36 is always required.

Note: ELS-1000S card is not supported by Extender II or Series 4 SMA1/4CP.



2.8.2 Equipping Rules for R1.2, Series 3 and Series 4

Equipping rules for R1.2, Series 3 and Series 4 are as listed in Table 2-8.The power consumption of ELS-1000S is between 25 and 30W and exceeds that assumed during the development of R1.2, Series 3 and Series 4.

Due to the power consumption and thermal dissipation, an ELS-1000S tributary is normally equipped with an empty slot immediately to the right. Any relaxation of this rule should only be applied following discussion of the specific application with Engineering. The overall configuration (for example whether MSP is used or not), the customer requirements and the environmental characteristics of the application (for example the ambient temperature range and whether or not the customer has installed fans or air-conditioning in the equipment room) must be taken in to account.

Table 2-8: Equipping Rules for R1.2, Series 3 and Series 4

Platform Starting from SMA Release

Maximum Bandwidth per Tributary

Maximum Total Data Bandwidth

Notes

Release 1.2

SMA1/4c+

SMA4/16c/16c+

1.21.9 All trib slots 1 x VC-4 4 x VC-4 See Note 1

Series 3

SMA1/4c+

SMA4/16c/16c+

3.4.2 All trib slots 1 x VC-4 4 x VC-4

Series 3

SMA16


3.5

Rev 1

LB slots 2 x VC-4

HB slots 4 x VC-4

4 x VC-4

3.5

Rev 2

LB slots 2 x VC-4

HB slots 4 x VC-4

8 x VC-4

Series 4

SMA1/4c

1.1.3 All trib slots 1 x VC-4 4 x VC-4 See Note 2

2.2 Slots 1-3 4 x VC-4

Slot 4 2 or 4 x VC-4

4 x VC-4 See Note 2

Series 4

SMA1/4L/LE


2.2 All trib slots 2 x VC-4 4 x VC-4

Note: 1: The 4 links X30 need to be removed in the Shelf SMA R1.2.

Note: 2: If Core tributary mode is used in SMA1/4c then tributary slot 4 only has 2 x VC-4 of available bandwidth.



2.8.3 Equipping Rules for UC & EX Family

Equipping Rules for UC & EX family are listed in Table 2-9.The usage of ELS-1000S cards is not limited by power consumption, as UC & EX family products do not have centralised power supplies. Instead, there are separate PSUs for each tributary card.

UC & EX family products can be fitted with internal fans as a configuration option. A fan must be used if an ELS-1000S card is used where the slot immediately to the right is occupied.

EX comprises two fan slots. If the ELS-1000S card is fitted in trib slots 1-2 (with no vacant slot immediately to the right) then the left hand fan must be fitted. If the ELS-1000S card is fitted in trib slots 3-7 (with no vacant slot immediately to the right) then the right hand fan must be fitted.

Even if the configuration does not require fans to be fitted, the customer may optionally choose to install fans to increase the temperature range of the equipment or provide protection against accidental overheating of the environment.

Table 2-9: Equipping Rules for UC & EX family

Platform Starting from SMA Release

Maximum Bandwidth per Tributary

MaximumTotal Data Bandwidth

Notes

SMA1/4UC 3.1 Slots 1-2 4 x VC-4 4 x VC-4

3.2 Slots 1-2 4 x VC-4 8 x VC-4

SMA4/16UC 3.3.2 Slots 1-2 4 x VC-4 8 x VC-4

SMA1/4EX 3.3.1 Slots 1-3 2 x VC-4

Slots 4-5 4 x VC-4

8 x VC-4

3.3.2 (TBA) Slots 1-3 2 x VC-4

Slots 4-7 4 x VC-4

14 x VC-4 See Notes 3.4 and 5

SMA4/16EX 3.3.2 Slots 1-3 2 x VC-4

Slots 4-7 4 x VC-4

8 x VC-4 See Note 3

3.3.2 (TBA) Slots 1-3 2 x VC-4

Slots 4-7 4 x VC-4

16 x VC-4 See Notes 3 and 4

Note: 1: Trib slots 6 & 7 are only available when using the STM-16 Core card.

Note: 2: R3.3.2 16 x VC-4 has not been tested and officially released at the time of publication of this document.

Note: 3: Limit of 14 is due to total generic tributary bandwidth restriction.



2.9 Equipping/Configuration Steps In order to realise a particular customer selected configuration the following steps must be followed.

1 Select ELS-1000S Card

2 Select SFPs for the client interfaces

3 Select backup and LCT SW if required

4 Select miscellaneous if required

5 Select spares if required.

2.10 ELS-1000S Card Saleable Entities The items within the Product Structure are sold as Saleable Entities (SEs); these are codes that identify a part to be ordered as detailed in the following sections. Every SE has a set of dates associated with it, each of which marks a key event during its lifecycle:

Release of Information Date

Acceptance of Orders Date

First Time Off Date

Volume Shipment Date

Last Time Buy Date

Withdrawn Date

2.10.1.1 ELS-1000S Card Ethernet Line/LAN Switch

Table 2-10: ELS-1000S Card Ethernet Line/LAN Switch

SE Description ME Common Code

ELS-1000S card Ethernet Line/LAN Switch 05HAT00021AAM SP58A

ELS-1000S card Preloaded Software (Rel 3.1) 05HGC00001AAE

2.10.1.2 ELS-1000S Card Software Licence

Table 2-11: ELS-1000S Card Software Licence SE Description ME Common Code

SP83E ELS-1000S card Software Licence 05PAB00002AAH



2.11 Client Interfaces The FastE and GigE client interfaces are provided on hot pluggable SFPs. These pluggable modules provide variations in performance and mode of operation. For specific details including a list of Marconi-approved SFPs, refer to the Layer 2 Card - Essential Safety Document on the Marconi Safety Web Site.

To access the site, copy the following URL into your web browser http://www.marconi.com/html/products/essentialsafetyinformation.htm

The account name and password for this site are both safety.

2.12 Backup and LCT Software The Backup and LCT software is part of the SMA software.

Note: The Series 4 backup software (SMA1/4E, SMA1/4C and SMA1/4) is pulled together under one SE SP81A code. This includes all the Series 4 SMA s/w (every version of Series 4 releases 1&2) and the SMA LCT.

The Backup and LCT software for the ELS-1000S card for all platforms supported at PacketSpan Reel. 3.1.1 rev.2 is contained on the CD-ROM with SE code SP81E. The ELS-1000S PacketSpan R3.1.1 Rev 2 is proven and is released on the platforms listed in Table 2-12.

Table 2-12: ELS-1000S Card PacketSpan R3.1.1 Rev 2 platforms

Platform Series 1.2/3: Release/Revision

S3 SMA-16 R3.5 REV2 (Equivalent to 1.3.8R2)

S3 SMA-16/16C+ R3.4.2 REV7 (Equivalent to 1.3.6R7 & 1.21.9R7)

S3 SMA-4/16C R3.4.2 REV7 (Equivalent to 1.3.6R7 & 1.21.9R7)

S3 SMA-1/4C R3.4.2 REV7 (Equivalent to 1.3.6R7 & 1.21.9R7)

Platform Series 4: Release/Revision

S4 SMA1/4C R2.2R1

S4 SMA1/4 (4+4) / 8 R2.2R1

Platform UC & EX family Release/Revision

SMA1/4UC R3.2

Note: The backup CD contains the previous SW Release 3.1.1,which is proven and released for the Series 1.2/3 and Series 4 platforms only.

2.13 Spares

Table 2-13: ELS-1000S Card Common Saleable Entities Saleable

Entity Description ME

Common Code SU99A SFP Blanking Plug (Dust Cover) 5103009-0016



2.14 Traffic Interfaces

2.14.1 Optical Ethernet (SFP Modules)

The SFP Optical Ethernet module as shown in Figure 2-6 is a small plug-in optical module suitable for the ELS-1000S Card. One is required for each optical interface to be provisioned on the ELS-1000S card for connection to either an Ethernet Port Extension Terminal or other equipment with a 100BaseFX interface. There are several SFP modules available for use with ELS-1000S Card.

2.14.2 ELS-1000S Card Client Interface SFPs

The Fast Ethernet / GigE client interfaces are hot-pluggable SFPs. The connector is LC/PC duplex receptacle (spherically polished endface).

Figure 2-6: Marconi Optical SFP Module

2.14.3 Optical Ethernet (SFP Modules)

The corresponding hazard level (HL) of the approved SFP modules is HL1.

2.14.3.1 FastE Optical

Connector LC/PC connector (spherically polished endface)

Number Max. four (in total 4 FastE)

Location SFP type module plugged into one of four slots provided on the ELS-1000S Card

Use In-station optical 100M Ethernet client interface

Protocol 100Base-FX, 100Base-LX10, MRV-S, MRV-S2.

2.14.3.2 GigE Optical

Connector LC/PC connector (spherically polished endface)

Number Max. two (in total two Gig E)

Location SFP type module plugged in to one of two slots provided on the ELS-1000S Card

Use In-station optical 1000M Ethernet client interface



Protocol 1000Base-SX, 1000BaseLX, LX10, 1000Base-ZX.

2.14.4 Electrical Ethernet (SFP Modules)

The SFP module as shown in Figure 2-7 is a small plug-in electrical module suitable for the ELS-1000S Card. One SFP module is required for each electrical interface to be provisioned on the card.

Figure 2-7: Electrical SFP Modules

2.14.4.1 FastE Electrical

Connector RJ45 socket

Number Max. 4 (in total 4 FastE)

Location SFP type module plugged into 1 of 4 slots provided on the ELS-1000S card

Use In-station electrical 10/100M Ethernet client interface

Electrical spec IEEE 802.3 standard (shielded twisted pairs of Category 5 cable)

Protocol 10/100Base-TX.

2.14.4.2 GigE Electrical

Connector RJ45 socket

Number Max. 2 (in total 2 GigE)

Location SFP type module plugged into 1 of 2 slots provided on the ELS-1000S card

Use In-station electrical 1000M Ethernet client interface

Electrical spec IEEE 802.3 standard (shielded twisted pairs of Category 5 cable)

Protocol 1000Base-T.

RJ 45 Interface



2.15 Mechanical Details

2.15.1 Mountings

The ELS-1000S card is equipped in the SMA products for Release 1.2, Series 3, and Series 4.

2.15.2 ELS-1000S Card Dimensions

ELS-1000S card dimensions are illustrated in Table 2-14.

Table 2-14: ELS-1000S Card Dimensions SE SE Description Height [mm] Depth [mm] Width [mm]

SP58A ELS-1000S card Ethernet Line/LAN Switch

233.05 219.7 25.4

2.15.3 ELS-1000S Card Weight

ELS-1000S card weight is illustrated in Table 2-15.

Table 2-15: ELS-1000S Card Weight SE SE Description Weight

Card without SFPs Card with 6 SFPs

SP58A ELS-1000S card Ethernet Line/LAN Switch 0.7 kg 0.8 kg

2.15.4 ELS-1000S Card Power Consumption

ELS-1000S card power consumption figures are shown in Table 2-16.

Table 2-16: ELS-1000S Card Power Consumption SE SE Description Power Consumption

Card without SFPs Card with 6 SFPs

SP58A ELS-1000S card Ethernet Line/LAN Switch 25 W 30 W

2.15.5 ELS-1000S Card Reliability

The calculation of the following MTBF figures are shown in Table 2-17 and are based on the calculation model MIL-HDBK-217 FN2.

Table 2-17: ELS-1000S Card Reliability SE SE Description MTBF (years) Affecting

SP58A ELS-1000S card Ethernet Line/LAN Switch 22.8 Card and traffic



Blank Page

ELS-1000S Card User ManualRelease 3.1.1 ELS-1000S Card Applications


Chapter 3: ELS-1000S Card Applications

3.1 Traditional Ethernet Private Line Operation Ethernet Private Line (EPL) applications are common for interconnecting Local Area Networks (LAN), Ethernet Metro Networks as well as Wide Area Networks (WAN). The intention is to transfer data traffic from any Point of Presence (POP) to lesser numbers of concentration centres.

Figure 3-1: Data Transport Network using EPL Service Model

FE

FE

SDH Network

Core Switch

Transport channels VC/VCG GFP-F LCAS Virtual Concatenation SDH Protection

1

1

1 3

2

2

3

Customer Edge Provider EdgeCustomer Edge Provider Edge

SMA

SMA 3

2 ELS-1000S

SMA

ELS-1000S

ELS-1000S

Figure 3-1 shows a network providing the EPL service. The SDH transport network connects Ethernet ports on each side of the network. Each of the private lines (1) to (3) is completely separated, which means there is a port per customer on each side of the network. The ports are connected via separate SDH transport container groups.

On the network side of an EPL product, each Ethernet flow is mapped into an appropriate SDH transport container, a single container (VC-12/VC-3/VC-4) a group of virtual concatenated containers (VC-12-nv, VC-3-nv-and VC-4-nv). The transport container designates the Flow Point. On the Ethernet side the Ethernet flow is mapped to an Ethernet port. The complete Ethernet frame is transmitted, including the MAC header.

3.2 Multiple Ethernet Private Line Consider an EPL scenario as shown in Figure 3-2 with tens of interfaces at the customer premises. For each port a single VC (or VC group) has to be allocated. The high numbers of customer interfaces require also tens of interfaces at the transport equipment connected to the core switch and the core switch itself. As traffic has been shaped before entering the SDH network each of the tunnels may carry only a fractional part of the physical Ethernet bandwidth. This leads to inefficient use of interfaces in both the transport devices and the core switch resulting in a higher than necessary network cost.



Figure 3-2: Data Transport Network Using EPL Service Model

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3.3 Optimisation of the Network The fixed network structure shown in Figure 3-1 and Figure 3-2 occurs during the initial introduction of Ethernet services on a standard SDH network. The basic network infrastructure is unchanged because only new add-on cards are equipped to carry the extra data types. The network is still based on SDH and does not use any typical aspects of Ethernet Data traffic behaviour, e.g. statistical multiplexing or multipoint connectivity.

For optimisation, a number of different steps of Ethernet traffic aggregation can be introduced. These reduce the numbers of Ethernet ports in the network giving reduced network expenditure (CAPEX) as well as reduced operating costs (OPEX) and more efficient usage of the SDH transport capacity.

3.4 Ethernet Aggregation (SDH into Ethernet) In this application, the aggregated signal appears on an Ethernet port (where Ethernet port means the external GigE or FastE ports). This is referred to as an Ethernet Aggregation function.

When both private lines (2) and (3) are terminated on the same equipment at the same location, e.g. at the core switch, it makes sense to aggregate the traffic and hand-off to the core switch on a common Ethernet interface. The capital expenditure benefits increase as the number of lines being aggregated increases, with a saving in port count on the core switch, and a saving in per port/per link costs on the SDH side. Additional network connectivity can be added simply via remote network management activities without the need for Core site visits and new wiring.

Figure 3-3 indicates the network solution. All the customer flows are still transported via single VCs (or VC-groups) and each packet channel ends at the core switch location to be aggregated into a single link. The packet channels 2 and 3 are now aggregated into a single Ethernet link carrying multiple private lines using the ELS-1000S Card. On the aggregating Ethernet link the virtual lines are differentiated using a VLAN tag or a statically allocated MAC address



The Core router is configured to use sub-interfaces, which adds VLAN tags that the ELS-1000S card can recognise.

Figure 3-3: Ethernet Link Aggregation

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3.5 SDH Aggregation (SDH or Ethernet into SDH) In this application, the aggregated stream is mapped to an Ethernet port (means external GigE or FastE ports) as well as to a SDH port (means VC-group). This referred to as an Ethernet (node 4) or SDH (node 1,2,3) aggregation dependent on the node type.

The next step to optimise the network is to aggregate the private lines (3) and (4) between the customer site and the core switch to reduce number and size of used VCGs as early as possible. Such an aggregation point can also aggregate pre-aggregated signals (1), (2) delivered by Node2 as well as (5), (6) delivered by Node1. The ELS-1000S card is able to aggregate any mixture of Ethernet and SDH aggregation and when the external Ethernet ports of an ELS-1000S card are not used the term 'Blind Card' is used as shown in Figure 3-4.

Aggregation at a SDH link means carrying several customer flows by using only one large VC-group instead of using many separated smaller VC-groups to the far end of the network. This type of aggregation provides the following additional benefits:

Improved utilisation of transport bandwidth. Ethernet virtual private line services are sold at bandwidths far below the physical line rate of the Ethernet links.

In the same way that an ELS-1000S card has a maximum number of external Ethernet ports, there is also a restriction on the number of SDH Virtual Concatenation Groups (VCGs), which can be supported. By using SDH link aggregation, this restriction is avoided and a large number of channels (or VPCs) can be configured in the network.

Whether or not pre-aggregated flows like (1)(2) and (5)(6) are forwarded with/without decomposition has to be configured in any transfer ELS-1000S card for each flow. As shown in Figure 3-4 the pre-aggregated flow (1) (2) is forwarded as one input to the next stage. Flow (5) (6) has been terminated and distributed in two different directions.



Figure 3-4: SDH Link Aggregation (and Layer 2 Blind Card Mode)

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3.6 SDH Link Aggregation with Remote Ethernet Port Figure 3-5 shows another scenario of SDH link aggregation. In this scenario it assumes that the Ethernet flow (7) does not exist, so the last aggregation stage is not necessary. In such applications, a standard Fast Ethernet or a Gigabit Ethernet mapper card can carry out the connectivity to the Core Switch. The last ELS-1000S card (Node3) sends the Ethernet flows to the mapper card, which forwards them transparently via the Ethernet port to the Core Switch. The GigE card acts as a remote Ethernet interface.

Based on the extent of the utilisation of the SDH network and the number and locations where customer Ethernet ports are available, the network could be configured in two different ways:

Have only one aggregation point at the Core Switch location and use a lot of SDH capacity between customer Ethernet ports and the head end.

Have more distributed ELS-1000S card cards in the network, reducing the SDH capacity requirements close to where the Ethernet flows originate, by aggregating the flows at the earliest opportunity.



Figure 3-5: SDH Link Aggregation with Remote Ethernet Interface

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3.7 Burst Compensation The trend to offer Ethernet equipment with interfaces based on Gigabit Ethernet physical layer specification independently of the real port bandwidth applications with partially filled GigE flows should be considered.

As an example the customer, port has been set to a CIR of maybe 20 Mbit/s but the physical layer is based on the Gigabit Ethernet specification. A burst can appear (2)(3) with Gigabit Ethernet speed and has to be stored in ELS-1000S Card. The ELS-1000S card maps the single Ethernet flows (2), (3) as configured into two VCGs, which consists of some low order VCs (5 x VC-12 and 3 x VC-12). If traffic bursts for a sustained period above the CIR, the ELS-1000S card limits the rate, enabling efficient adjusting of used SDH bandwidth according to the application demand.

Additionally in some applications, it may be useful to have a Fast Ethernet interface instead of a partially filled Gigabit interface. The ELS-1000S card may be used to convert partially filled GigE pipes (4) into a cheaper and more appropriate FastE pipe (4) as well as vice versa.

Figure 3-6: Burst Compensation

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3.8 Cascading of ELS-1000S Cards In applications, where the demand for Ethernet or SDH interfaces is larger than that supported by one ELS-1000S Card, its possible to cascade two or more ELS-1000S Cards to reach a higher number of interfaces. This is achieved in two different ways as shown in Figure 3-7 below.

3.8.1 Ethernet Interface Cascade

Figure 3-7: Ethernet Interface Cascade

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As shown in Figure 3-7 (left part) cascading can be achieved via an external GigE/FastE port if both ELS-1000S Cards are available in the same location. N x FastE interfaces could be aggregated on ELS-1000S Card-1. The aggregation output is available at the GigE port and is connected to the GigE port of ELS-1000S Card-2. It aggregates all its own FastE ports as well as the pre-aggregated flow from ELS-1000S Card-1. The final aggregation flow is inserted into an appropriate VCG and transferred to the SDH network.

Similarly as shown in Figure 3-7 (right part) cascading can be achieved by connecting both ELS-1000S Cards via the SDH switch. In such applications locations for ELS-1000S Card-1 and ELS-1000S Card-2 could be different, because connectivity can be achieved via the local SDH switch or via the SDH network. Note: the overall bandwidth of ELS-1000S Card-2 is lower than that in the classical cases, because each pre-aggregated packet has to pass through the card twice via the Backplane, once when entering the ELS-1000S Card-1 and a second time when leaving it.

Note: The two cascaded ELS-1000S Cards still appear as two different instances in the management system.



3.8.2 SDH Transport Channel Cascade

In some applications, particularly in LO SDH networks the demand of virtual channels (particular

layer 2 user

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