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New Member

Flapping Port Catalyst 4006

we experience problem with catalyste 4006 after updating os from 5.4(1) to 7.6(1) and replacing blade ( SLOT 5 who 8 port was broked)

what we got since we did the replacement and the Update os

is : disconnecting for 8 port ( Slot 3 port 1-8)

Message :

Console> 2003 Jun 05 12:20:53 %SYS-4-P2_WARN: 1/Astro 3-1(3/1-8) - consecutive management requests timed out.

2003 Jun 05 11:56:04 %SYS-4-P2_WARN: 1/Host 00:90:27:24:87:d6 is flapping between port 6/4 and port 3/8

2003 Jun 05 11:56:05 %SYS-4-P2_WARN: 1/Traffic from permanent host 00:04:c0:84:6

New Member

Re: Flapping Port Catalyst 4006

My dear chap,

Did you check to make sure there is no spanning tree loop happening on your network ?

The Astro is an asic on the supervisor. I suggest you log a call to the TAC and send them the output of the command dump1 and show health 1.

They will be able to determine if there is a problem with the supervisor. Groups of ports are mapped to the astro asic on the supervisor. A faulty astro asic will force a group of ports to be disable or flap. If you move the card to another slot it will work. Do this if you are running out of ports to use. The reason why it will work is because the astro will map these new combination of port/slot to a different position on the astro.


Jason Chan