Quoting Greene, Patrick (PJGreene@infotechent.net):
> 1) What is the maximum number of HSRP groups you can define on a 6500 MSFC?
> I'm pretty confident it is 255 but I would like someone to to tell me it not
> so...:)
The theoretical limit on Ethernet and FDDI is indeed 255. I think it
comes from the fact that currently only 255 MAC addresses are
reserved for HSRP. Not all hardware supports this many groups (due
to hardware limitations and MAC address filter reprogramming
overhead) and sometimes the MAC address filtering is implemented in
software.
Token ring interfaces have no freely programmable MAC address filter
so token ring uses three functional addresses for HSRP. Thus the
limit is three.
Lars.
-- Lars Fenneberg, lf@elemental.net (private), lf@mcs-cityline.net (work)
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