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Re: Etherchannel and Spanning Tree [7:95995] posted 01/14/2005
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post the swit ch configs...

############################
Larry Letterman
Cisco Systems
############################
----- Original Message ----- 
From: "Lee Messenger" 
To: 
Sent: Friday, January 14, 2005 9:38 AM
Subject: Re: Etherchannel and Spanning Tree [7:95995]


> Joseph,  I appreciate your advice on this issue.
>
> Here are my findings so far.
>
> When the win2k servers are on a different switch to the Unix server,  we
get
> the database comm errors.
> Placing all servers on the same switch, we see no errors.
>
> All servers are in the same VLAN and are connected via fibre.  The VLAN is
> configured as an HSRP group and so all servers in that VLAN have the same
> default gateway.
>
> There are no errors on the ports the servers are connected to, or the
ports
> that make up the inter-switch link, except for lots of giants, however, I
> believe this now to be a cosmetic bug.
>
> Removing CPQ Teaming from the servers has no effect
>
> The utilization of the inter-switch link at the time of the errors is
approx
> 9mb/sec,  obvously very low.
>
> Also,   I have noticed in the event logs of ALL my servers with CPQ
teaming
> enabled,  they report a "heartbeat failure" at exactly the same time as
when
> the database comm failure occurs.   As the heartbeat traffic is being sent
> across the switch link, this seems to make me think even more that the
link
> is the problem.
>
> so, if anyone has any advice as to what I could do, it would be greatly
> appreciated
>
> Regards,
>
> Lee




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