Redundant Chassis or SUP/MSFC

[ki.cisco]

Hi,

We have five 6500 series switches. One core switch has got Dual Sup 720 with MSFC2, we are using high availability feature for redundacy of the L2 and L3.

Another model which we can use is having two chassis working for L2 and L3 (HSRP)redundancy.

Please suggest which one is better and why?

[abhishek_nandavat]

Hi,

I would suggest going in for two chassis working for L2 and L3 redundancy. Its a much better option. Say if the power supply of the chassis fails, when you have dual sup, then dual sup if of no use!

Moreover with two chassis, you can configure HSRP for all vlans and also you can team-up your servers which provides you with high resiliency and scalability. Although all of it is possible with dual sup as well but then its not of much use in that scenario.

Hope this helps.

Regards,

AbhisheK

Please rate all posts!

[Atif Raees]

the second option with provide high scalability & requires complex configuration configuring both L2 and L3 protocols.

on the other hand first model provide less scaslibility (b/c if access switches are connected with redundent link to same core), configuration would be lot easier , and convergence time will be very less.

both option are ok depending upon the user.

Atif