I have a C2851 facing a private network and behind it a stacked cat3750 (currently there are 2 switches in the stack, but that will grow).
At the moment, the setup is as follows:
cat3750 --> C2851 --> private network
but we wish to add another level of redundancy b/w the 3750 & 2851. Given a HSRP setup will not work on the CAT3750 due to its stacking nature, do you recommend to have two gig ports terminate at each of the switches in the stack with etherchannel?
The idea is if one 3750 fails or one of the gig ports fail on the 2851, the connection will still be maintained (at least to one of the switches).
that is :
cat37500 --> gig0/0 C2851 -->private net
--> gig0/1 C2851
Any thoughts about this?