lab monday

© 2000, Cisco Systems, Inc. All rights reserved. 1

ITP Course

ITP Product TeamMarch 24th – 28th

LAB – ITP DesignMonday

© 2002, Cisco Systems, Inc. All rights reserved. 2

© 2000, Cisco Systems, Inc. All rights reserved. ITP Course—Appendix B-3

Objectives of this Course

•Design a basic ITP Network for LSL, M2PA modes•Open your Spreadsheet and access Lab info•SUA is another dedicated Lab Section

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

s0/0:0port: 5000 10.10.10.3S 5/0/0:0

port: 5000 10.10.10.4

port: 5000 10.10.10.5

ITP

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

Itp 2600a 1.2.4Itp 7500a 1.2.2


Agenda

Global ITP Configuration, Links and linksetsMTP3 RoutesGTT QOSRedundancy


Specifying SS7 Network Context

ITP(config)# cs7 variant {ansi | itu | china}

Specifies the SS7 variant the ITP is running.

ITP(config)# cs7 national-options {TFR | multiple-congestion}

Specifies ITU national options.

ITP(config)# cs7 network-indicator {international |national | reserved | spare}

Specifies Network Indicator


Specifying Point Codes

SS7 variant must be specified before the local point code.

ITP(config)# cs7 point-code point-code

Specifies the primary point code for the ITP.

ITP(config)# cs7 secondary-pc point-code

Specifies a secondary point code for the ITP,

ITP(config)# cs7 capability-pc point-code

Capability point code, if a mated pair of ITPs share the same GTT Database for redundancy purposes (ANSI).

3.4.2

ITP


Global ITP Verification

‘show cs7’• itp#show cs7• Point Code 1002• SS7 Variant ITU• Network Indicator national• Secondary Point Code 2000

• MTP3 Restart status Completed• MTP3 Restart occurred 35 day(s), 00:52:41 ago

• Total Linksets 3• Available Linksets 1• Total Links 3

‘show running-config’


Logging Server Setup

Prior to Deployment, Make sure that for every ITP,logging Messages are sent to a Syslog Server

ITP(config)# logging trap <level> causes syslog messages to be encapsulated in a trap and sent as a trap. Level can be set as “debugging”

ITP(config)# Logging <SGM IP Address>Specifies the syslog server address.

ITP(config)# logging buffered 2000000 <level>Specifies the size in bytes of the buffer in ITP memory


Logging and SGM

ITP(config)# logging history 500 debugging For SGM pollings via SNMP . Here, at least a 500 syslog record buffer is reserved on the ITP for SGM. The logging level is set to debugging.


Exercise 1

On your ITP:Configure Variant as ITUConfigure Point Codes Verify that your configuration is correct

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

s0/0:0port: 5000 10.10.10.3S 5/0/0:0

port: 5000 10.10.10.4

port: 5000 10.10.10.5

ITP

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

Itp 2600a 1.2.4Itp 7500a 1.2.2


Agenda

Global ITP Configuration, Links and linksetsMTP3 RoutesGTT QOSRedundancy


ITP Protocol Architectures

MTP2MTP2

MTP1MTP1

MTP3 / MTP3bMTP3 / MTP3b

M2PAM2PA

SCTPSCTP

IPIP

SCCPSCCPGTTGTT

SSCF-NNI

SCCOP

AAL5

Cisco IOS ITP Base Bundle

M3UAM3UASUASUA

MTP3b Stack

SS7 Stack

SoIP Stacks


Putting a Link in service

1. Controller and Interface Configuration :– Low Speed Link Serial or Channelized– High Speed Link ATM– SCTP Link

2. Defining Links3. Defining Linksets4. Assigning Links to Linksets.


SCTP and LSL ITP Protocols

MTP2MTP2

MTP3MTP3

MTP1MTP1

SCCPSCCPGTTGTT

M2PAM2PA

SCTPSCTP

IPIP

MTP2MTP2

MTP1MTP1

MTP3MTP3

SCCPSCCPGTTGTT

IPIP

SCTPSCTP

M2PAM2PA

MTP3MTP3

MTP2MTP2

MTP1MTP1

SCCP

TCAP

MAP IS-41 ISUP

MTP3MTP3

MTP2MTP2

MTP1MTP1

SCCP

TCAP

MAP IS-41 ISUP

IPNetwork

SCTPAssociations

SEPSEPSEPSEP SS7 SGSS7 SGSS7 SGSS7 SG SS7SS7SCTP/IP

MTP3 AdjacentNodes

TDM TDM


Putting a Low Speed Link (LSL) in service

1. Controller Configuration 2. MTP2 Interface encapsulation 3. Defining Linksets4. Assigning Links to Linksets.


Configuration of Serial (V.35) as SS7

Defining Clocking• Only one end of the link requires this• itp(config)#int s0/0• itp(config-if)#clock speed 56000• itp(config-if)#clock rate 56000

Make sure that the cable is DCE at the proper end


Configuration of Channelized as SS7 (7500s)

ITP(config)# card type {e1 | t1} slot/bay

ITP(config)# controller {e1 | t1} slot/bay/port

ITP(config-controller)# channel-group number timeslots value {speed [56 | 64]}

MSC

3.4.23.4.8

ITPs5/0/0:0


Clocking (7500s)

ITP(config-controller)# clock source internal/ line primary/line secondary priority

For each line, priority ranges from 0 to 7 (8 E1 per “Hangten”).The E1 line with the highest priority drives the clock for the whole card (for all lines that are up on the card).

Internal option synchronizes to a Stratum 4 clock

Non used lines must be shutdown to avoid clocking issues

Option to synchronize to a Building Integrated Timing Source

ITP# show controller to find out the clocking configuration


Verification of LSL SS7 Configuration

controller (clocking, status, etc)• itp#show controller s0/0

Interface (status, encap, packets, etc)• itp#show interface s0/0• Interface up indicates physical connectivity is good• Protocol Down indicates that the link in not available at

MTP3 yet (not part of a linkset or not activated on remote side)


Configuration of Channelized E1 as SS7 (Optional)

ITP(config-controller)# framing {crc4 | no-crc4}, For Framing

ITP(config-controller)# linecode {ami | hdb3}For linecode

ITP(config-controller)# cablelength long [gain26 | gain36] [0db | -7.5db | -15db | -22.5db]

MSC

3.4.23.4.8

ITPs5/0/0:0


LSL Interface Configuration: MTP2 encapsulation

•MTP2Shows MTP2’s view of the link status (depends heavily on MTP3 starting the link)

ITP(config)# interface serial5/0/0:0

ITP(config-if)# encapsulation mtp2

3.4.2

ITPs5/0/0:0


LSL Linksets Configuration

ITP(config)# cs7 linkset ls-name adjacent-point-code

Specifies a linkset to an adjacent node and enters linkset configuration mode.

Tip: Usually it’s good to turn accounting on when creating linkset

ITP(config-cs7-ls)# accounting

ITP# show cs7 accounting

MSC

3.4.23.4.8

ITPs5/0/0:0SLC 0

Linkset


Assigning Links to Linksets

ITP(config-cs7-ls)# link slc serial number

Configures an SS7 link within a linkset and enters CS7 link configuration mode.

!!! SLC needs to be the same on both sides !!!

MSC

3.4.23.4.8

ITPs5/0/0:0SLC 0

LinksetSLC 1


The Ping cs7 Command

ITP# ping cs7 point code

Sends (3) MTP3 messages to the point code.

Can be used on any type of link (MTP2, M2PA, HSL)

Only to ITPs. Other SS7 Nodes might not understand the command (although it is part of ITU recommendations)


Links and Linkset Monitoring

ITP# show cs7 linkset

Displays the status of all interfaces with linksets and links.lsn=sctp-10 apc=2.10.2 state=avail available/links=4/4

SLC Interface Service PeerState Inhib

00 172.18.58.78 21030 21030 avail InService -----

01 172.18.58.78 21010 21010 avail InService -----

02 172.18.58.78 21020 21020 avail InService -----

04 172.18.58.78 21040 21040 avail InService -----

lsn=ss7-1 apc=1.1.1 state=avail available/links=16/16

SLC Interface Service PeerState Inhib

00 Serial0/1/0:0 avail --------- -----


Disabling Links

To prevent a link to carry traffic :

ITP# cs7 inhibit lsn slc

To disable a linkset :

ITP(config-ls)# shutdown

To disable a link :

ITP(config-ls-link)# shutdown

To disable a controller :

ITP(config-controller)# shutdown


Exercise 2

Set up LSL Linksets between your ITP and your SPEach 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

s0/0:0port: 5000 10.10.10.3S 5/0/0:0

port: 5000 10.10.10.4

port: 5000 10.10.10.5

ITP

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

Itp 2600a 1.2.4Itp 7500a 1.2.2

lab monday

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