8600 high cpu utilization

[edok]

The problem:
High cpu utiliaztion(%100) on passport 8600.
Topology:
3 nortel passport 8600 with ver 3.2.2.0 on all of them.
Configured with: MLT-ist between them,
And 4 by port vlans.
No routing protocol is configured and all services are disable (80,21,22,69)

We only have a problem with one passport who act as
router. and the high cpu utilization only on it.

When we removed 1 vlan ip address the cpu utilization is
going back down to normal.
when we put it back the cpu going back up.

Sniffer show's that from some reason the passport vlan 1 mac address who represent vlan 1 doing massive arp request
every minute
despite the reason that arp agetime is 360 minutes.

Trace command show's this repeating error:
(Command: #trace level 14 2(Phase2 IP+RIP + Terse)):

[02/15/03 ] tMainTask P2IP: arprx.c : 259 : arprx: Illegal target mac address ff:ff:ff:ff:ff:ff in arp pkt

questions:
1) Dose this error related to the problem of the cpu ?
2) What is this error?
3) What can cause the cpu to do that?

 

[NMSman]

Hi, firstly if you have got MLT-ist configured between three switches, that is an illegal configuration. You can only have one 'peer' per box. Can you confirm you have not done this.

 

[edok]

We got NormalMlt configured.
now we also see this repeating error:
[02/16/03 00:30:03:211] tMainTask MLT: smlt.c : 706 : ERROR!! SOCKET FAIL
but we haven't configure smlt.

 

[NMSman]

I know it sounds like a cop out, however if you are definite that you HAVENT got SMLT on your MLT configuration then it sounds like you have a corrupted configuration and should reset to factory defaults and start again.
Otherwise tftp the config file off your box(s) and email them to me, i'll have a look.

Cheers
Pete

 

[edok]

How can i email it to you ?(email address?)

 

[NMSman]

try pjb123@hotmail.com

 

[hitender]

Hi Edok,
could u pls semd me u r config file so that i can also go though it and try to help u. Hitender (BE.CCNA)
Best Of luck
Try & Try Till U succedd and update others on u r achievments

hit_singh@rediffmail.com

 

[Jynxx]

Are you using Optivity Policy Services on your network for QoS/Diffserv? They are supposed to support it, but the 8600's freak out when OPS pushes policies to it and will peg at 100%. They will continually reload policies....for some reason. But the short answer, is if you are running OPS, don't for 8600's. You have to add policies manually.

 

[NMSman]

Jynxx, What version of OPS are you using ?

 

[edok]

the problem solved.
we had hardware parity errors
we replaced the cpu and it's looking good now.

 

[Jynxx]

We are running OPS 3.0.0 build 1215.

 

[NMSman]

Have you tried version 3.1 ?