Cisco 3660 with NM-1A-OC3SMI (ATM OC-3 Single Mode)

[pavlosd]

I have a problem upgrading the IOS of my Cisco 3660 router.

Cisco 3660 with :

- 64MB DRAM 16MB Flash

- Cisco IOS IP Plus 12.05(T).

ATM configuration is:

!

interface ATM2/0

no ip address

no atm scrambling cell-payload

atm sonet stm-1

atm ilmi-keepalive

atm ilmi-pvc-discovery

pvc ILMI 0/16 ilmi

!

!

interface ATM2/0.1 point-to-point

description UNSUSED

ip address 192.168.111.1 255.255.255.252

atm pvc 1 1 40 aal5snap 34000 34000

!

Currently the above setup works fine.

Now, I tried to upgrade to an IOS image 12.2(17) IP PLUS FW/IDS but although that ATM is present in the configuration all my subinterfaces are down!!!

On the back of my router the ATM Interfaces lid green (no problem).

When I type "show atm vc" all pvc's show DOWN.

Other debuging and by enabling local loopback show no trafic through the atm!!!

Any ideas?

[dnagarajachary]

These are the IOS images that support the Network Module you have specified.

12.0(5)T, 12.1(1), 12.1(1)T, 12.2(1), 12.2(2)T, 12.2(11)YT, 12.3(1)

But what the show diag out put?

Does it show the nework module with the correct part number?

Did you try to change any of the configuration parameters after upgrading the IOS?

-Deepu

[pavlosd]

sh diag:

Slot 2:

ATM OC3, intermediate reach single mode Port adapter, 1 port

Port adapter is analyzed

Port adapter insertion time unknown

EEPROM contents at hardware discovery:

Hardware revision 1.0 Board revision G0

Serial number 26498580 Part number 800-03704-02

Test history 0x0 RMA number 00-00-00

EEPROM format version 1

EEPROM contents (hex):

0x20: 01 9C 01 00 01 94 56 14 50 0E 78 02 00 00 00 00

0x30: 80 00 00 00 01 08 08 17 FF FF FF FF FF FF FF FF

It seems to be the correct part number. I did try to shut and unshut the interface as well as delete it and redefined it as well. To be honest the interface went up for a moment after recreating but no communication was (i.e. ping) was working with the other end. After a while, status went DOWN.

I will try the images you suggested and let you know. Where can I find more info on what images are suitable for the specific hardware?

[dnagarajachary]

You can find the information in the following site

http://www-tac.cisco.com/Support_Library/Hardware/Routers/3600/3600.html

-Deepu

[svelayud]

Try configuring the new style PVC configuration and see if that makes a difference.

interface ATM2/0.1 point-to-point

description UNSUSED

ip address 192.168.111.1 255.255.255.252

pvc 1/40

vbr-nrt 34000 34000

Thanks

suresh