baystack450 problem (stack)

[wanyph]

hi!

I have a stack (5 baystack450, firmware 4.2.0.12) which is makeing big problems.
Sometimes I cannnt ping or telnet into it. (but it is switching normaly)
Some users are telling me that they sometimes (once,twice a day) lose their connections.
On 4 switches I found this entry in the eventlog:

Entry Number: 457 sysUpTime: 01:32:26 Reset Count: 50
An operational exception occurred at vector number 3.
[SP+0] 2000000B [SP+3] 000E0E02
[SP+1] 84F4C00C [SP+4] 000B84F2
[SP+2] 00961B1D [SP+5] 00080225

Could your tell me what this means?
Or where can i find troubleshooting-documents?

Any help is welcome.

thanks,
mewi

 

[jimbopalmer]

it is telling you where in the firmware it was when it rebooted (SP is stack pointer) this is not very helpful outside Nortels labs.

Nortel has a newer version of the 450 code 4.2.0.22, or you may wish to retreat to 3.1



I tried to remain child-like, all I acheived was childish.

 

[niklasw]

Make sure that the checkboxes "Discard untagged frames" och "discard tagged frames" in the VLAN menu in Device Manager aren't checked. This is a problem Ive experienced after upgrading a few 450's. It can cause quite a few problem, dont know if you're aware of this prob.

-Cheers, Niklas

 

[wanyph]

hi,

thanks for all your answers,
I think i´ve solved the problem.

I updated the stack to 4.2.0.22
and I replaced 1 switch.

since this moment the stack is running without peoblems.

mewi

 

[jimbopalmer]

niklasw

I find it is 'always' port 5, do you also find that port 5 often reboots to having 'discard untagged frames' checked?

I tried to remain child-like, all I acheived was childish.

 

[niklasw]

Yeah! If there is any port with that checked, its always port 5!!

-Cheers, Niklas