m2pa mtp3 lab(tuesday)

LAB – ITP DesignM2PA and MTP3

Tuesday 3/24/2003

© 2002, Cisco Systems, Inc. All rights reserved. 1

© 2000, Cisco Systems, Inc. All rights reserved. ITP Course—Appendix B-2

Exercise 2

Set up LSL Linksets between your ITP and your SP

Each Linkset should have one link, SLC 0

ITP

ITP

Itp 7500b 1.2.3 Itp 2600b 1.2.5

SIMa 1.1.1

SIMb 1.1.2port: 5000

10.10.10.2

s0/0:0

port: 5000 10.10.10.3

S 5/0/0:0

port: 5000 10.10.10.4

port: 5000 10.10.10.5

ITP

s0/0:0S 5/0/0:0

ITP

Itp 2600a 1.2.4Itp 7500a 1.2.2


Putting an SCTP Link in service

1. Defining Local Peer

2. Local IP Addresses Assignment

3. Defining Linksets

4. Assigning Links to Linksets.


SCTP Configuration: Configuring Peer Local and Remote

Step 1

ITP(config)#cs7 local-peer local-port-number

Specifies the local peer and puts you in local-peer submode.

Step 2

ITP(config-cs7-lp)#local-ip address

Configures the IP address for this local peer instance.

repeat this step NOW to configure backup IP addresses for this local end-point. 1.1.1

ITP

2.2.2

ITP

local-peer 5000

10.0.0.1

local-peer 5000

20.0.0.1

10.0.0.1 20.0.0.1


Assignment of links to Linksets: Configuring SCTP Links

ITP(config-cs7-ls)# link slc sctp remote-ip-addr

[backup-remote-ip-addr ...] remote-port-num local-port-num

[passive]

Configures SS7 over IP peers for a linkset and enters Cisco CS7 link configuration mode.

1.1.1

ITP

2.2.2

ITP

link 0

local-peer 5000

10.0.0.1

local-peer 5000

20.0.0.1

link 0

10.0.0.1 20.0.0.1


M2PA using SCTP Multihoming

SCTP Multihoming allows M2PA links to have an additional layer of redundancy.

Up to 4 IP addresses can be used as endpoints for SCTP associations.

In case of IP network failure on primary IP addresses, SCTP will automatically handle using backup IP addresses to maintain connectivity transparently to MTP3 & above (less processing)


SS7oIP Rerouting Options upon Loss of Link

STP

ITPITP

SS7 MTP3SS7 MTP3 IP SCTP IP SCTP

SS7SS7ApplAppl

MTP3MTP3

MTP2MTP2

MTP1MTP1

SS7SS7ApplAppl

MTP3MTP3

MTP2MTP2

MTP1MTP1

STP

MTP3MTP3

M2PAM2PA

SCTPSCTP

IPIP

SCCPSCCPGTTGTT

MTP3MTP3

M2PAM2PA

SCTPSCTP

IPIP

SCCPSCCPGTTGTT

• MTP3 Changeover

MTP3 must retrieve messages from layer2 and insert them on the alternate layer3 linkset

•SCTP Multi-Homing

Less processor intensive. the MTP3 link and linkset status does not change.



3.4.2

ITP

3.4.4

local-peer 5000

10.120.122.6

10.120.123.6

local-peer 5000

10.120.122.22

10.120.123.22

link 0

ITP

10.120.122.6

10.120.123.6

10.120.122.22

10.120.123.22

IP Cloud 1

IP Cloud 2



3.4.2

itp-7500a

ITP

3.4.4

itp-2600a

ITPM2PA LINK

3.4.2

itp-7500a

ITP

3.4.4

itp-2600a

ACTIVE IP CONNECTION

link 0

link 0

STANDBY IP CONNECTION

local-peer 5000

10.120.122.6

10.120.123.6

local-peer 5000

10.120.122.22

10.120.123.22

link 0

ITP

10.120.122.6

10.120.123.6

10.120.122.22

10.120.123.22



3.4.2

itp-7500a

ITP

3.4.4

itp-2600a

ACTIVE IP CONNECTION

link 0

STANDBY IP CONNECTION

local-peer 5000

10.120.122.6

10.120.123.6

local-peer 5000

10.120.122.22

10.120.123.22

link 0

ITP

• Connectivity is lost to 10.120.122.22 on itp-2600a

• SCTP automatically fails over to use 10.120.123.22

FAILED IP CONNECTION

10.120.122.6

10.120.123.6

10.120.122.22

10.120.123.22

•show cs7 m2pa peer <ls-name> [slc]


Exercise 3

Set up m2pa associations between all ITPs (1 link per linkset, 2 IPs address per peer, as in the Spreadsheet )

• Follow the steps: first local peer, then linkset.

ITP

ITP

Itp 7500b 1.2.3 Itp 2600b 1.2.5

SIMa 1.1.1


10.10.10.2

s0/0:0

port: 5000 10.10.10.3

S 5/0/0:0

port: 5000 10.10.10.4

port: 5000 10.10.10.5

ITP

s0/0:0S 5/0/0:0

ITP

Itp 2600a 1.2.4Itp 7500a 1.2.2


Agenda

Global ITP Configuration,

Links and linksets

MTP3 Routes

GTT

QOS

Redundancy


MTP3 Routes

• Specifying the Cisco ITP Route Table

• Specifying the Default Route Table

• Loading the Route Table Contents

• Adding Routes to the Route Table

• Saving the Route Table


Route Table Database Management - Storage

Routing Table is stored in SGM Server

ITP

RAM Flash

SGM

Copy tftp

Load

Edit

SGMClient

Save


Updating the Route Table with CLI

To add a route to the Cisco ITP route table, use the following command in global configuration mode:

ITP(config)# cs7 route-table system

ITP(config-cs7-rt)# update route point-code [mask | length] linkset ls-name [priority priority-value 1 ] [qos-class class]

Note. The smaller the number, the higher the priority.

Example:

ITP(config-cs7-rt)# update route 1-2-1/24 linkset HLR_Milan priority 1


Saving / loading the Route Table

ITP# cs7 save route-table name url Save the route table to a file.

The newly created file can be used with the load route-table sub-command to populate the route table upon ITP startup.

On a 2651 ITP type: (ITP-cs7-rt)# load flash:name

On a 7500 ITP type(ITP-cs7-rt)# load slot0:name

ITP

RAM Flash

Load


Using SGM for the Route Table

On SGM:

1. Select ITP, edit the Route Table

2. Populate the Route Table with Route Table Editor

3. Save to File (Default name hostname.rou)

On ITP

1. Copy tftp the file into the ITP Flash

2. Load the File from Flash


Loading the Route Table into the ITP

1- ITP# copy tftp://filename slot0:

2 –(config)# cs7 route-table system

3 –(config-cs7-rt)# load slot0:filename

On ITP 7500

1- ITP# copy tftp://filename flash:

2 –(config)# cs7 route-table system

3 –(config-cs-rt)# load flash:filename

On ITP 2651


Exercise 4 : Routing with SGM

Edit your routing table on SGM and add up a route

Copy your route table on flash and load it.

Example :

ITP#copy tftp://10.10.10.24/sgm/routes/itp2600a.rou flash:

Ping cs7 all nodes in the network.

ITP

ITP

Itp 7500b 1.2.3 Itp 2600b 1.2.5

SIMa 1.1.1


10.10.10.2

s0/0:0

port: 5000 10.10.10.3

S 5/0/0:0

port: 5000 10.10.10.4

port: 5000 10.10.10.5

ITP

s0/0:0S 5/0/0:0

ITP

Itp 2600a 1.2.4Itp 7500a 1.2.2


Exercise 5 : Routing with CLI

Add up a route update on CLI

Save your routing table

Check on SGM your updated route

itp-a 1.1.10

itp-c 1.1.12

ITP

ITP

itp-b 1.1.11

itp-d 1.1.13

sp-a 1.1.14

sp-b 1.1.15port: 5000

10.0.0.10

s0/0:0 SLC 0 s0/2:0

port: 5000 10.0.0.11

s0/1 SLC 1 s0/1

s0/3 SLC 1 s0/1

s0/2 SLC 0 s0/0

port: 5000 10.0.0.12

port: 5000 10.0.0.13

ITP

s0/0:0 SLC 0 s0/0:0s0/0 SLC 0 s0/0

s0/0:1 SLC 1 s0/2:1

s0/0:1 SLC 1 s0/0:1

ITP

m2pa mtp3 lab(tuesday)

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