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ovt Bronze
Bronze

FWSM question

Hi!

Is MSFC required if CatOS is run on the Supervisor?

According to docs FWSM runs its own routing and from FWSM point of view

MSFC is just an external router. Right? So, can external router be used instead

of MSFC?

Oleg Tipisov,

REDCENTER,

Moscow

2 REPLIES
Cisco Employee

Re: FWSM question

MSFC is not mandatory but preferable due to better performance due to MLS/CEF compared to an external router

ovt Bronze
Bronze

Re: FWSM question

Just to understand this better: Is that correct that SVI (FWSM-to-MSFC-or-other-router VLAN) is needed to only exchange routing updates between MSFC and

FWSM and FWSM forwarding decisions are completely independent of MSFC?

The SVI VLAN should be the only VLAN common to both FWSM and MSFC

unless CatOS 7.6 is used that supports multiple SVIs. Correct?

Regards,

Oleg Tipisov,

REDCENTER

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