Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

PFC2 - HSRP groups limitations

I wish to have more detailed informations about the following log message:

%MLS-3-FIB_MAXHSRP :Maximum number of supported HSRP addresses (16) exceeded

that is logged in a Cat65xx Sup Engine 2

when I configure a new interface Vlan on the MSFC2 routing engine.

I have found something about PFC2 limitations to support more than 16 HSRP groups (http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/12_1e/swconfig/cef.htm).

Is this a genuine information? I have configured more than 50 HSRP groups on a Supervisor II with MSFC2/PFC2 and all seems to be up and running in an optimal way.

Someone could help me?

2 REPLIES
Anonymous
N/A

Re: PFC2 - HSRP groups limitations

the problem is after 16 hrsp groups, everything else is software switched so you will some load on the msfc, so you will have

some +500 kpps instead of 15 or 30 Mpps and the CPU

may go high on the MSFC2 - this is definitely not recommended.

Same groups numbers may be used in different VLANs

New Member

Re: PFC2 - HSRP groups limitations

In later versions we have a software check to prevent configuring more than 16 hsrp groups. You have may have configure 50 hsrp group in older version or you had actually used a sup1/pfc1/msfc2 instead. You use 1-16 for the first 16 vlans and then repeat for the next 16 and so on. you should be fine.

99
Views
0
Helpful
2
Replies
CreatePlease to create content