ATM/E1 connection between 7200 E1-IMA and 2651 VWIC-1MFT-E1

[RedNectar]

I have a 7200 with an E1-IMA card.

I have a 2651 with a VWIC-1MFT-E1.

I have them connected via an E1 cross-over (the cable has been tested between 2x7200 E1-IMA cards)

I can't get them to talk to each other.

Both ends show the PVC as: Status: up   and have green LED link lights

But one end shows the IP interface as up, the other end down

Can anyone help?

Configs:

7200 with E1-IMA	2651 with VWIC-1MFt-E1
hostname 7200-E1-IMA ip cef !         interface ATM1/0 no ip address clock source internal framing crc4adm no ima-group no atm ilmi-keepalive !         interface ATM1/0.1 point-to-point ip address 10.10.10.1 255.255.255.248 pvc 0/44   ubr 1920   encapsulation aal5snap	hostname 2651-VWIC-1MFT-E1 ip cef controller E1 0/0   mode atm clock source internal interface ATM0/0   no ip address   no atm ilmi-keepalive ! interface ATM0/0.1 point-to-point   ip address 10.10.10.2 255.255.255.248   pvc 0/44    ubr 1920    encapsulation aal5snap
7200-E1-IMA#show atm pvc            VCD /                                        Peak  Avg/Min Burst Interface  Name         VPI   VCI  Type   Encaps   SC   Kbps   Kbps   Cells  Sts 1/0.1      1              0    44  PVC    SNAP     UBR    1920                UP	2651-VWIC-1MFT-E1#show atm pvc             VCD /                                      Peak  Avg/Min Burst Interface   Name       VPI   VCI  Type   Encaps   SC   Kbps   Kbps   Cells  Sts 0/0.1      1            0    44   PVC    SNAP     UBR    1920               UP
7200-E1-IMA#sh ip int br Interface                  IP-Address      OK? Method Status                Protocol ATM1/0                     unassigned      YES NVRAM  up                    up      ATM1/0.1                   10.10.10.1      YES manual up                    up	2651-VWIC-1MFT-E1#sh ip int br Interface                  IP-Address      OK? Method Status                Protocol FastEthernet0/0            10.10.100.2     YES NVRAM  up                    up      FastEthernet0/1            unassigned      YES NVRAM  administratively down down    ATM0/0                     unassigned      YES manual down                  down    ATM0/0.1                   10.10.10.2      YES manual down                  down
7200-E1-IMA#sh ver Cisco Internetwork Operating System Software IOS (tm) 7200 Software (C7200-IS-M), Version 12.3(1a), RELEASE SOFTWARE  (fc1) ... System image file is "slot0:c7200-is-mz.123-1a.bin"	2651-VWIC-1MFT-E1#sh ver Cisco Internetwork Operating System Software IOS (tm) C2600 Software (C2600-JS-M), Version 12.2(2)XT, EARLY  DEPLOYMENT RELEASE SOFTWARE (fc1) ... System image file is  "flash:c2600-js-mz.122-2.XT.bin"

[Giuseppe Larosa]

Hello Chris,

in back to back setup one side provide clock using clock source internal and the other side should use clock source line.

you have set both routers for clock source internal change on C2651 to clock source line

Hope to help

Giuseppe