Re: address flapping

Hi Faizan ,

This is abnormal behavior

1) are you using server loadbalancer ?Two NIC card in one server which r
cnnected to two different swtches
2)check spanning-tree ?
seems to be flapping of mac or hardware defect

thanks

On Mon, Apr 5, 2010 at 8:41 PM, faizan khurshid <
faizankhurshid921_at_hotmail.com> wrote:

> HEY
>
> Expert i need your help. CAt OS 4500 version 6.3 using as a Core .fiber
> connectivty established between access Swicthes
>
>
> Vlan 1 is running across all network
>
> CAT OS 4500 servers and users are connected on it
>
>
> access switches are 2950 where only user are connected
>
> Due to following are the error netwrok outages occuring
>
>
> %SYS-4-pb-WARN:1/Host 00:0b:db:c2:18:53 is flapping between 3/1 and 4/7
>
> %SYS-4-pb-WARN:1/Host 00:0a:b7:e7:6d:80 is flapping between 2/1 and 4/8
>
> 3/1 and 2/1 are trunk port of Cat OS connected to access swicthes 01 and
> 03
> respectivley
>
> here is the link of network diagram
>
> http://img263.yfrog.com/i/oupn.jpg/
>
>
>
>
>
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Received on Mon Apr 05 2010 - 22:06:45 ART