We are planning to add a redundant supervisor engine card to existing Cisco 6504 chassis, it has a WS-SUP32-GE-3B supervisor engine card installed and we are planning to install an additional supervisor card in the chassis. My few queries are:
1. Do we have to install a supervisor card of same make & model (as the existing sup card) as a redundant supervisor card?
2. Do we require same IOS on both cards to achieve redundancy, in case the IOS is different can we upgrade the same while the new sup card is installed in the chassis? What would be the process to do so?
3. Is there any detailed plan available with Cisco for configuring redundancy in a working Switch single sup engine?
Thanks in Advance :)