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Configuring Cisco 2811 (ITP Router) as an STP

I am trying to connect 2 PSTN switches via an ITP router. Currently I am using a Cisco 2811 as the ITP. I am very new to ITP and I have followed the configuration guide to configure the links.

Among the switches one is a legacy switch in which I can only configure SS7 links and the other I have M3UA links. With current setup the SS7 link from the router to switch is working fine. But the M3UA link is not working.

I have done all possible debugs for M3UA, but I don't see any SCTP or M3UA packets going out from the router.

So does it mean i have to do a configuration to enable the sigtran service in the router to make it work?

Below is the configuration on the router.

 

Current configuration : 4055 bytes
!
! Last configuration change at 03:09:37 UTC Tue Jul 8 2014 by ***
! NVRAM config last updated at 15:17:18 UTC Thu Jul 3 2014 by ***
!
version 12.4
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
no service password-encryption
service sequence-numbers
no service dhcp
!
hostname RT-02
!
boot-start-marker
boot system flash c2800nm-itpk9-mz.124-15.SW9.bin
boot-end-marker
!
card type command needed for slot 1
logging buffered 16384
logging rate-limit all 500 except errors
!
aaa new-model
!
!
aaa authentication login default local
!
!
aaa session-id common
clock timezone UTC 5
clock calendar-valid
network-clock-participate wic 2
no network-clock-participate wic 3
network-clock-select 1 E1 0/2/0
!
!
ip cef
no ip bootp server
no ip domain lookup
cs7 multi-instance
cs7 instance 0 variant ITU
cs7 instance 0 network-name sigtran
cs7 instance 0 network-indicator international
cs7 instance 0 point-code 2.111.7
!
!
no cs7 log gtt verbose
multilink bundle-name authenticated
password encryption aes
!
!
!
file verify auto
archive
 log config
  hidekeys
!
!
controller E1 0/2/0
 framing NO-CRC4
 channel-group 0 timeslots 1
!
controller E1 0/2/1
!
controller E1 0/3/0
!
controller E1 0/3/1
!
ip tcp synwait-time 10
ip ftp username cisco
ip ftp password cisco
!
interface FastEthernet0/0
 ip address 192.168.1.2 255.255.255.252
 duplex auto
 speed auto
!
!
interface Serial0/2/0:0
 no ip address
 encapsulation mtp2
!
cs7 instance 0 linkset STP_PSTN 2.111.1
 link 0 Serial0/2/0:0
!
cs7 instance 0 route-table
!
cs7 m3ua 2905
 local-ip 10.104.29.163
 local-ip 10.104.29.164
!
cs7 asp STP-N 2905 2905 m3ua
 remote-ip 10.28.78.9
 remote-ip 10.28.78.106
!
cs7 instance 0 as STP_N m3ua
 routing-key 47 4.121.4
 asp STP-N
!
ip route 10.28.78.0 255.255.255.0 FastEthernet0/0
!
ip http server
no ip http secure-server
!
!
!
control-plane

 

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