Vip Redundancy on CSS --- problems

glenngriffin · ‎10-14-2005

Hi All~

I tried VIP reduandancy using a CSS pair and it didnt work.

Currently we have a flat network in our staging environment.Only one VLAN 100 is serving all machines.I was asked to introduce a CSS pair for some application testing.I introduced another VLAN 200 into the switch and attached servers and CSS's Server Vlan to it. See diagram at

http://download.fortifire.com/diagram.jpg

(Every server has two NICs only one active--solid green)

Every thing worked as long as I didnt shut down the primary CSS. As soon the primary CSS was down, I couldnt reach my servers.

I flushed the arp tables on both devices but I found that CAt6k was learning the MAC of Servers on wrong port-(port connected to the primary css which was down).Is this some kind of spanning tree problem?

I switched back to single vlan model and am now using CSS in Host-to-Host redundancy and every thing is running fine.

In a redundandt Layer 2 environment, is VIP based redundant CSS is not possible?

or I am making a silly mistake?

Thanks

Glenn

Gilles Dufour · ‎10-16-2005

what was the servers default gateway ip address ?

Was it the redundant-interface ?

Could you ping from server to gateway after failover ?

Are you using dual nic on the servers ?

Could you give us the CSS config.

Thanks,

Gilles.