flexipack hub

FlexiPacket Hub

FT4282CEN02GLA0 © 2010 Nokia Siemens Networks

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Contents

1 Introduction 3 1.1 FlexiPacket Hub 2200 4 1.2 FlexiPacket Hub 1200 31 1.3 A 2200/A 1200 Quality of Service (QoS) 41

FlexiPacket Hub

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© 2010 Nokia Siemens Networks 2

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1 Introduction The FlexiPacket Hub 2200/1200, as part of the Nokia Siemens Networks Carrier Switches portfolio, allows a smooth integration in a Carrier Ethernet Transport network, ensuring end to end network design, including advanced QoS, Synchronization and OAM.

FlexiPacket Hub is the indoor unit of Nokia Siemens Networks FlexiPacket Microwave system.

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1.1 FlexiPacket Hub 2200

A2200 system is a modular system, as depicted in Fig. 1, based on a fixed main board with Pluggable Interface Cards (IFCs), Power supply and TDM card.

The main board is the heart of the system: it contains the main system controller and handles the traffic management.

Up to two IFCs can be used for interfacing different Ethernet and TDM ports.

Each interface card can be either pure Ethernet IFC (i.e. all Ethernet ports, copper or fiber) or CES card (TDM traffic to MEF format processing unit).

A2200 IDU does not support Power over Ethernet on GbE ports.

Two Power Supply units are used for powering the system.

The TDM interface card is used for TDM interfaces connections (e.g. E1/T1).

A2200 is connected to a FlexiPacket Radio ODU by a GbE port (copper) on IFC.

Each card provides 8 GbE ports and up to two cards can be equipped in IDU, resulting in 16 GbE ports totally.

Since one Ethernet port shall be reserved for line-up, maintenance and configuration upgrade purposes, up to 15 FPR ODUs can be connected to a single A2200.

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Back Power Supply option BACK

Access Module Bay Access Module BayFan Tray

Power Supply

USB Device4 uplink portsUSB Host Management

Console

Dry Contact

Main Module CES Access Module Bay

8-port 10/100/1000BASE-TAccess Module

E1/T1 CESModule

FRONT

Power Supply

Fig. 1 FlexiPacket Hub 2200

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1.1.1 Main Module

The Main Module is the fixed part of the A-2200 device, and is located on the left side.

Its main characteristics are reported in Fig. 2.

Connectors are shown from Fig. 3 to Fig. 8 .

• Main CPU of the unit• Switching capacity (Full Duplex)

• Total switching capacity - 24Gbps FD• Network switching capacity - 4Gbps FD• Access switching capacity - 20Gbps FD

• 4 x GBE uplink interfaces• SFP support (Optical and Electrical))

• QOS HW mechanisms• Housekeeping interfaces

• System and Alarm LEDs• Alarm Cut Off (ACO)• Dry contacts – 4 inputs and 4 outputs• Out Of Band management interfaces (RS232, RJ45 – 10/100/1000BaseT)

• USB interfaces for Disk On Key and UART emulation

Fig. 2 Main Module (1)

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Fig. 8 MainModule (7)

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1.1.2 Power Supply

The A-2200 device can accommodate one or two of the following removable power supplies:

• Front-facing AC power supply

• Rear-facing AC power supply

• Front-facing DC power supply

• Rear-facing DC power supply

When two power supplies are installed and enabled, each power supply provides half of the A-2200’s input current. If one power supply fails or is removed, the second power supply automatically provides the full power load. All power supplies are hot swappable.

• AC power supply• DC power supply• Powering capacity

–100 W• Supported alarms

– Under voltage– Over Temperature– Output Power

• Hot swappable and redundant• DC and AC power supplies can be mixed on the

same A-2200

Fig. 9 Power Supply

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1.1.3 Ethernet Interfaces

The available Ethernet Interfaces are:

• 10-port 100/1000BASE-FX optical fiber access module. This module has 10 SFP ports that operate at 100 or 1000 Mbps. For the range and wavelength of optical ports, see the A-Series Optical Performance Guide.

• 8-port 10/100/1000BASE-T copper cable access module. This module has 8 RJ-45 ports that operate at 10, 100, or 1000 Mbps.

Main characteristics about the Ethernet Interfaces are in Fig. 10.

Connections are from Fig. 11 to Fig. 13.

• Support 10 optical Ethernet interfaces

• 100/1000 BaseX full duplex

• Auto-negotiation support

• Supports standard 2 fiber as well as single fiber SFPs

• Both access modules position can house FX-10 cards

• Hot swappable

10-port 100/1000BASE-FX

• Support 8 copper Ethernet interfaces

• 10/100/1000 BaseT full duplex

• Auto-negotiation and auto MDIX support

• Both access modules position can house GE-8 cards

• Hot swappable

8-port 10/100/1000BASE-T

Fig. 10 Ethernet Interfaces (1)

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1.1.4 E1/T1 CES Access Modules

The available E1/T1 CES modules are:

• 8-port E1/T1 CES access module. This module enables 8 ports for E1/T1 functionality and contains the LED indications for the user. It can only be located in the right access bay.

• 16-port E1/T1 CES access module. This module enables 16 ports for E1/T1 functionality and contains the LED indications for the user.

•Two E1/T1 modules supported:

– 8 x E1/T1

– 16 x E1/T1

•E1/T1 CES Modules requires additional

physical interface modules (TIC)

•Installation:

– 8xE1/T1 module can be installed in right access bay only

– 16xE1/T1 can be installed in any access bay

E1/T1 CES Modules

Fig. 14 E1/T1CES Access Modules (1)

1.1.5 TDM Interface Card (TIC)

The TDM Interface Card (TIC) is the E1/T1 interface module to the outside world.

One of the following TICs can be installed in the TIC bay at the top right of the A2200 device:

• 8-port TIC. This TIC provides 8 E1/T1 ports, and is installed with an 8- port E1/T1 CES access module.

• 32-port TIC. This TIC provides 16 E1/T1 ports when connected to one patch panel, and 32 E1/T1 ports when connected to two patch panels. The 32-port TIC is installed with one or two 16-port E1/T1 CES access modules.

8-port CES services are implemented by installing an access module, which enables E1/T1 functionality, and a TDM Interface Card (TIC) which enables 8 E1/T1 interfaces.

16-port CES services are implemented by installing an access module, which enables E1/T1 functionality. A TIC is installed together with a patch panel, enabling 16 E1/T1 interfaces.

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32-port CES services are implemented by installing two access modules, which enable E1/T1 functionality. A TIC is installed together with two patch panels, enabling 32 E1/T1 interfaces.

TIC Modules and interconnections are shown from Fig. 15 to Fig. 18.

TIC - 8 TIC - 32

16 ports patch panel

• Required to connect E1/T1 CES to external world • Module types:

– 8 x E1/T1 with RJ45 connectors– 32 x E1/T1 supporting the 16xE1/T1 modules

▪ A 16 port patch panel for RJ45 is available

TDM Interconnection Modules (TIC)

Fig. 15 E1/T1CES Access Modules (2)

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Fig. 16 E1/T1CES Access Module (3)


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E1/T1 Cable pin Assignment are reported in Fig. 19.


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1.1.6 CES STM-1 OC-3 Module

This module provides a connection between the customer’s TDM network and the Nokia Siemens Networks CET network by supplying Circuit Emulation Services for STM-1/OC-3.

The module has a user interface located on its front panel and a backplane interface that connects the main board’s signals.

There are four front panel SFP interfaces whose configurable interface types are:

• SFP #1 – STM-1/OC-3 or STM-4/OC-12 (future)

• SFP #2, 3 and 4 – STM-1/OC-3

The front panel also contains indication LEDs as follows:

• 1 x card status: green, amber, red

• 4 x TDM port status: green, red

Fig. 20 CES STM1 OC3 Module (1)

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OC3/STM1 CES Access Module Connections are reported in Fig. 21.

Fig. 21 CES STM1 OC3 Module (2)

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1.1.7 FlexiPacket Hub A-2200 EQUIPMENT COMPOSITION

FlexiPacket HUB A-2200 equipment Composition rules are resumed in Fig. 22.

Fig. 22 FlexiPacket Hub A-2200 EQUIPMENT COMPOSITION

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1.1.8 A-2200 device LEDs

The ACO (alarm cut off) and LED Test features are provided on the A-2200 main unit, as shown in Fig. 23.

Fig. 23 A-2200 device LED indications

A-2200 ACO feature

Pressing the ACO button after an alarm has been detected silences an external device connected to A-2200 through the dry contact port, until another alarm is detected or the specified timeout is reached.

A-2200 alarm indications

Fig. 24 describes the alarm LED indications for the A-2200 device.

Fig. 24 A-2200 alarm LED indications

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A-2200 system indications

Fig. 25 lists the A-2200 system LED indications that provide information about the general operating status of the A-2200 device.

Fig. 25 A-2200 system LED indications

A-2200 management indications

Fig. 26 describes the 10/100BASE-TX out-of-band management port LED indications for the A-2200 device.

Fig. 26 A-2200 management port indications

Information on troubleshooting is on a dedicated Chapter

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The LED Test feature

Pressing the LED Test button lights all LEDs, enabling detection of a LED malfunction.

A-2200 power supply unit indications

Fig. 27 describes the A-2200 power supply LED indications.

Fig. 27 A-2200 PSU LED indications


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Access module indications

Each access module has various LED indications providing information about its access ports.

Access Port Indications

Each access port Optical or Electrical) has a green LINK LED and an orange ACT LED, which indicate the port status, and an OK/OOS LED, which indicates the state of the entire access module (Fig. 29).

Fig. 28 describes the optical access port LED indications.

WARNING When a copper access module is disabled, both the Link and OOS LEDs are lit.

Fig. 28 Optical access port indications

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Copper access port LEDs

Optical access port LEDs

Fig. 29 Optical and Electrical access port LEDs

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CES port indications

Each STAT/ALARM LED indicates the state of one E1/T1 port. Each column of STAT/ALARM LEDs is numbered to identify the access port to which the LED corresponds (Fig. 32). The OK/OOS LED indicates the state of the entire access module (Fig. 32 and Fig. 33).

Fig. 30 and Fig. 31 describe the CES access port LED indications.

When a CES access module is disabled, both the Link and OOS LEDs are lit.

Fig. 30 CES access port indications

Fig. 31 CES access port indications (continued)

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8-Port CES E1/T1 access module

16-Port CES E1/T1 access module

Fig. 32 CES E1/T1 access modules

Fig. 33 CES STM-1/OC-3 module

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1.2 FlexiPacket Hub 1200

The A-1200 is a cost-effective access device for cellular backhaul and enterprise applications. It has Ethernet ports as well as E1/T1 ports for CES applications.

There are two versions of the A-1200:

• modular

• fixed

Modular A-1200

The front view of the modular A-1200 device is shown in Fig. 34.

4x100/1000 Base-Fx SFP

6x10/100/1000 Base-T 8xE1/T1

Fig. 34 front view of the modular A-1200

The front view of the modular A-1200 device with a blank panel covering the modular slot is shown in Fig. 35.

Fig. 35 front view of the modular A-1200 device with a blank panel

The hot surface cautionary symbol refers to the handle of the fan tray which may be hot to the touch.

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Fixed A- 1200

The front view of the fixed A-1200 device is shown in Fig. 36.

8x E1/T16x 10/100/1000 Base-T

Fig. 36 front view of the fixed A-1200

The hot surface cautionary symbol refers to the handle of the fan tray which may be hot to the touch.

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1.2.1 Fan tray

The same fan tray, which contains four fans, features in both the modular and fixed versions of the A-1200; it is used for cooling the chassis and is field-replaceable. If one of the fans in the tray should fail, an alarm is generated. Even in the case of a single fan failure, the A-1200 still supports all environmental requirements.

Fig. 37

1.2.2 DC power supply

Two sources of 36 VDC to 75 VDC can be connected to the fixed DC power supply unit, the source with the higher voltage feeds the unit and the second serves as the redundant source.

The input voltage operating range is: 36 V – 75 VDC. The maximum input current at 40.5 V is 2 A.

1.2.3 AC power supply (for modular version only)

An input voltage operating range of 85 VAC – 265 VAC, 47 Hz – 63 Hz can be connected to the fixed AC power supply unit. The maximum input current at 85 VAC is 1 A.

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1.2.4 Main unit

The main unit is the fixed part of the A-1200 device; it contains:

4 optical Ethernet ports (2 in the Fixed version)

100/1000 Base-FX full duplex

100/1000 Auto-negotiation

Small form-factor pluggable (SFP)

LC connector

6 copper Ethernet ports

10/100/1000 Base-T full duplex

10/100/1000 Auto-negotiation

MDIX (10Base-T.100Base-TX)

6 x RJ-45 connector

8 x E1/T1 ports

8 x TDM E1/T1

12V input from PSU

RJ-45 connector (RJ-48C mapping)

Out-of-Band port

Full duplex 100Base-TX IEEE 802.3u compliant

10/100 Auto-negotiation

MDIX

RJ-45 connector

Console port

RS-232 interface

RJ-45 connector

Dry Contact

2 input indications

2 output alarm indications (48V/1 Amp)

DB-9 connector

Universal Serial Bus (USB)

USB 2.0 compliant. The USB port is intended for connection to a computer to control the unit.

LEDs

OK/Fail, Test/Disable LEDs

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1.2.5 4-port STM-1/OC-3 CES access module

This module, which can only be used in the modular version, is designed to be inserted into the modular slot of the A-1200. It provides a connection between the customer’s TDM network and the Nokia Siemens Networks CET network by supplying Circuit Emulation Services for STM-1/OC-3.

Fig. 38 4-port STM-1/OC-3 CES access module

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1.2.6 A-1200 device LEDs

The types of LEDs on the A-1200 main unit (Fig. 39 and Fig. 40) are:

• System

• Ethernet port

• CES port

• Power supply

Fig. 39 Front view of the fixed A-1200

Fig. 40 Modular A-1200 with blank panel

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A-1200 system indications

Fig. 41 lists the A-1200 system LED indications that provide information about the general operating status of the device.

Fig. 41 A-1200 system LED indications


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Ethernet Port

Fig. 42 lists the A-1200 Ethernet Port LED indications.

)

)

Fig. 42 Ethernet port LED indications


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CES port indications

Fig. 43 lists the A-1200 CES Port LED indications.

Fig. 43 CES port LED indications


A-1200 power supply indications

Fig. 44 lists the A-1200 Power Supply LED indications.

Fig. 44 A-1200 PSU LED indications


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1.3 A 2200/A 1200 Quality of Service (QoS)

A2200 and A1200 support five different queues, each one associated to one of the following Class of Service:

• EF1 (Expedited Forwarding

• EF Control and EF2

• AF Control and AF1 (Assured Forwarding)

• AF2

• AF3 and BE (Best Effort)

In the ingress of an UNI/NNI port, traffic is marked/processed using 3 bits (PCP) that define priority and color as reported in Fig. 45.

0AF3

BE

1AF2

2AF Control

AF1 (Management)

3EF Control

EF2

4EF1

PCP Bit ValueColorPriorityQueue

CoS

7

6

5

4

3

2

1

0

….

….

Yellow

Yellow

Yellow

Yellow

Yellow

Green

Green

Green

Green

Green

Fig. 45 HUB Priority Code Point Configuration

FlexiPacket Hub

FT4282CEN02GLA0


The characteristics of the classes are:

• EF1 (Class 4)

Lowest delay and delay variation

No packet loss

Similar to DiffServ Expedited Forwarding

Usually reserved for Circuit Emulation Service (TDM services)

May be used for Voice

Highest strict priority

• EF2 (Class 3)

Low delay, delay variation, and no packet loss

Used for Voice, Video, other real-time applications

Second strict priority

• AF1 (Class 2)

Low packet loss

Reserved for internal network control traffic (OSPF, configuration, download etc.)

• AF2 (Class 1)

Lower delay and packet loss than Normal Data

Better excess BW treatment than Normal Data

Similar to DiffServ Assured Forwarding

• AF3 (Class 0)

Not just Best effort – may still have guaranteed BW

ling

FlexiPacket Hub


43

The scheduling is performed mixing both Strict Priority and Weighted Fair Queuing (WFQ) mechanisms, as reported in Fig. 46

WF Q S.P.

Sch e

dule

r

WFQQueues

EF1EF2

AF1AF2BE

SP Queues

Fig. 46 HUB Scheduling

FlexiPacket Hub

FT4282CEN02GLA0


In order to cope with the HUB, The configuration on the ODU shall be as reported in Fig. 47.

0AF3

BE

1AF2

2AF Control

AF1 (Management)

2EF Control

EF2

3EF1

PCB Bit

Value

PriorityQueueCoS

7

6

5

4

3

2

1

0

Fig. 47 HUB Priority Code Point Configuration

flexipack hub

Documents

flexipacket radio odu

ethernet ports

a2200 system

main system controller

tdm card

tdm ports

gbe ports

main cpu