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box-to-box redundancy

I´m a little bit confused about the config guide ragarding box-to-box redundancy.

customer will use 2 Css 11503 and wants to configure box-to-box redundancy.

There is one advice that it is essary to link the two switches via a FE-Port. but i also fond an advice that a GE-Port can be used.

What is right? It´s depending on sw-version ?

Thank you for your help

regards

Dietrich Schleyer

1 REPLY
Cisco Employee

Re: box-to-box redundancy

Dietrich,

initially it was necessary for this link to be FE.

With the most recent versions this link can also be a GE link.

Since this link is only being used for some kind of keepalive between the 2 CSS, I don't see the need to use GigE.

Also, unless your customer is doing firewall loadbalancing, you should really convince him to use vip/interface redundancy and not box-to-box redundancy.

You get faster failover time with vip/interface red., you can turn on statefull failover [not possible with box-to-box] and it is easier to troubleshoot.

Regards,

Gilles.

Thanks for rating this answer.

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