I have read all of the documentation so many times that I put myself into a headspin. Now the sentences I read don't make any sense.
What exactly is the HSRP limitation on Cisco Catalyst 3560 switches? I have read that there is a limit of 32 instances of HSRP GROUPS.
What if I have instances on group 1? Can I have 32 instances on group 1 as well as 32 instances on group 0?
What if I have SVI's on group 0 running on another switch that shares a VLAN ID with the switch in question? Will that count against the limit? I have read elsewhere than it can, but now I am not so sure.
Is there some literature with clarification that somebody can point me to? Because I'm not willing to take anybody's word on anything at this point.
You can configure up to 32 instances of HSRP groups. If you configure the same HSRP group number on multiple interfaces, the switch counts each interface as one instance:
For example, if you configure HSRP group 0 on VLAN 1 and on port 1, the switch counts this as two instances.