BPS/Passport 8600 Partial Network Disconnect Problem

[Googer]

I am having a problem with users on a BPS stack being partially disconnect from the network. By partially disconnected I mean that they can connect to one server on our server subnet but not another (Example, I can ping 192.168.1.23 but can not ping 192.168.1.44). I have checked all the client workstations settings and they look good. This is happening to all the clients on this stack. I have performed a packet capture at the destination of the failed ping and I can see Echo Request arrive and the Echo Reply leave, but the client gets no response. I have this stack uplinked through a Passport 8600 with a 2 port MLT. Both the 8600 and the BPSs are on a reasonably recent code. I have tried the following without success.

1) Unplugged one MLT member and then the other (no indications of a loop).

2) Reset the switch stack in software.

3) Powered off the stack and then back on.

4) Defaulted the BPS stack and completely reconfigured it.

5) Completely rebuilt the VLAN and MLT on the 8600.

I am back working now after completely replacing the stack with 450s and rebuilding the VLAN and MLT on the 8600 again. This is the second time I have had this problem.

Any help would be appreciated.

Googer

 

[Googer]

Looks to be. We recently upgraded to the 2.1.2 version of code and so far everything looks good.

Googer

 

[m1227]

Googer, thanks for reply.

Code version 2.1.2 for Passport 1200 ?

M1227

 

[Googer]

No that is on the passport 8300. Are you having 1200 problems. We had those previously and they were problematic. Nortel finally told us not use the layer 3 capabilities as the hardware had trouble keeping up.

Googer

 

[m1227]

Oh...thanks for help.

 

[HungryHouse]

googer,

How about the failures across the MLT on the original 8600?
Still seeing issues or has that been resolved?