Load Balacing for FWSM

Answered Question
Mar 24th, 2009

Hello,

I'm implementing a data center with an Aggregation layer equiped with FWSM-1 which cannot support active/active failover.

I'm thinking about multi-context to manually divide traffic into the two CAT6500.

Any comment or suggestion ?

I have this problem too.
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Correct Answer by Jon Marshall about 7 years 8 months ago

Omar

You did ask for comments after all :-).

You said in your initial post that you could not use active/active but what you describe in terms of failover in your scenario is active/active, see this link -

http://www.cisco.com/en/US/docs/security/fwsm/fwsm40/configuration/guide/fail_f.html#wp1052847

If you choose to go active/standby you cannot have FWSM1 active for one context and standby for another.

Jon

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Jon Marshall Wed, 04/01/2009 - 13:35

Omar

Not sure i fully understand. If you run active/stanby then multi-context will not allow you to have different FWSM's active and standby. In an active/standby config the active firewall is active for all contexts and the standby is stanby for all contexts.

Only active/active will allow you to use both FWSM's at the same time.

Jon

omar.elmohri Thu, 04/02/2009 - 05:30

And you want to say that we cannot create more than one failover group when using active/standby ?

Jon Marshall Thu, 04/02/2009 - 07:47

Omar

My understanding is that even with active/active both FWSM's are never active for the same context so yes unless you use active/active one FWSM is active for all contexts and one is standby.

Jon

Correct Answer
Jon Marshall Thu, 04/02/2009 - 11:00

Omar

You did ask for comments after all :-).

You said in your initial post that you could not use active/active but what you describe in terms of failover in your scenario is active/active, see this link -

http://www.cisco.com/en/US/docs/security/fwsm/fwsm40/configuration/guide/fail_f.html#wp1052847

If you choose to go active/standby you cannot have FWSM1 active for one context and standby for another.

Jon

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