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Bum Code for 8600

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dagnaget

Vendor
Oct 11, 2004
15
US
version 4.0.6.0, the latest release has a known bug with VRRP.
 
Yes, the vrrp transitions are seen  due the fact that a task, READOP is not yielding. So the Cpu gets busy and misses to sent the vrrp hello's which are supposed to be sent in 1 min. And when the vrrp slave sees no Hello from the Master and the hold down timer is exceeded, 3 sec, it assumes itself as the master.

The forecast release with the fix is 4.0.7.0 (Release date is May 7th)
 
Did you get a Change Request (CR) number from Nortel?
The Nortel reps I've talked to seem not to know about this and I'd like to point them in the right direction.

I'm running 4.0.6 and haven't seen any issues, although my CPU usage is fairly low (<10%).
 
Yup here it is:

The CR Q01351507 is written for this issue.
 
OK, thanks... I feel a lot better after reading the CR.

The problem seems to require leaving JDM (or perhaps other SNMP management tools) querying at a reasonably high rate. I only use the CLI and MRTG for graphs (at 5 minute intervals) so it seems unlikely I'll be pushing the CPUs hard enough to cause it to trip up...

In any case thanks much for the heads up!
 
Hello,

would it be possible for you to send me the CR by email?

We have the 8600 series switches running the v4.0.6 but by now we didn't experience any VRRP problem.

cheers
 
Nortel has put out a product bulletin on this.
If the link below doesn't work its document id 2006007018

It looks like they've narrowed the problem down to when chassis information is polled, things like temperature and fan status. I only poll them via MRTG every 5 minutes so I'm not too worried, but it might be of concern to anyone who leaved JDM open.

 
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