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MTP2 not start

tareqrebhi
Level 1
Level 1

dears,

i need your help i couldn't make any call because MTP2 not established ans started... if you plz i need your help ASAP.

thank you .....

Tareq.

6 Replies 6

Chester Rieman
Cisco Employee
Cisco Employee

akutra_oss
Level 1
Level 1

make sure that you have ip connectivity between AS and MGC's

run on cisco:

sh ss7 sm set

output must be something like this:

Session-set: 0

State = ACTIVE

Failover-timer = 5 secs.

State-debugging = OFF

Timer-debugging = OFF

2 Sessions:

session 0 session-state ACTIVE remote-host 172.16.129.66:7000

session 1 session-state STANDBY remote-host 172.16.129.67:7000

Hi akutra,

When I trying to use this command,

sh ss7 sm set 0

i' m get following output;

Session-set: 0

State = IDLE

Failover-timer = 5 secs.

State-debugging = OFF

Timer-debugging = OFF

4 Sessions:

session 0 session-state OOS remote-host 210.210.75.51:7000

session 1 session-state OOS remote-host 210.210.75.99:7000

session 2 session-state OOS remote-host 210.210.75.59:7000

session 3 session-state OOS remote-host 210.210.75.107:7000

1 SS7 Links:

7/0:15 (dig.) chan-id 0 variant ITU-White link-state OOS

pls check and help me to resolve....

regards

Saravanan

saravanan_c@sifycorp.com

anikas
Cisco Employee
Cisco Employee

You need to runn the following debugs on the SLT to determine why MTP2 is down

From the intagrated SLT send the following commands and debugs:

deb ss7 mtp2 back 0

deb ss7 mtp2 iac 0

deb ss7 mtp2 lsc 0

deb ss7 mtp2 txc 0

deb ss7 mtp2 rcv 0

deb ss7 mtp2 aerm 0

deb ss7 sm session 0

Troubleshooting Cisco SLT Signaling

http://www.cisco.com/univercd/cc/td/doc/product/access/sc/rel9/omts/r9_apb.htm#wp1040167

As mention earlier in the thread please verify the session-set is up and running.

Please verify that before troubleshooting the actual mtp2 and signaling channel.

If that's done follow this procedure:

1. Restart AS and PGW

2. Verify netindicator

3. Recalculate PC

4. Verify SLC for the particular link

5. Verify timeslot on the C7iplnk

6. Verify Serial interface

Ex:

!

interface Serial7/0:0

no ip address

encapsulation ss7

channel-id 0

!

7. Check E1/T1 controller

ex:

!

controller E1 7/0

framing NO-CRC4

channel-group 0 timeslots 1

pri-group timeslots 2-31 nfas_d primary nfas_int 10 nfas_group 0

!

subabar
Level 1
Level 1

Hi tareq,

Can you please check the if line protocol on serial interface 7/0:15 is up or down

also we see this message "mtp1 link Admin down"

can you please check if you have configured as below

interface Serial6/0:15

no ip address

encapsulation ss7

channel-id 0

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