HSRP on 4948

Unanswered Question
Sep 8th, 2008

Hello,

On 3750 Cisco switch, we have 32 group ID of HSRP maximum available... So, on a 4948 switch, what is the maximum group ID of HRSP available? 32 or more?

Thanks a lot

I have this problem too.
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satish_zanjurne Mon, 09/08/2008 - 07:18

hi,

Catalyst 3750 12.2(25)SEE supports group numbers/ID from 0 to 255 , default being 0.

So as 4948 supports 0 to 255 group number/ID.

HTH..rate if helpful..

claude1968 Mon, 09/08/2008 - 08:49

I don't understand. Sometimes I read this on cisco documentation...

How many HSRP groups does the Cisco Catalyst 3750 Series support?A.The Cisco Catalyst 3750 Series supports up to 32 HSRP groups.

Ian Wilson Thu, 09/25/2008 - 12:04

Hi,

The 3750 supports just 32 distinct HSRP group numbers.

For example, if you use HSRP group numbers 10-41 on interface e0, then you cannot use group numbers 0-9 or 42-255 on any interfaces on the 3750. You are limited to group numbers 10-41 on all other interfaces.

The catalyst 4900 series has no such restrictions, and HSRP group numbers 0-255 can be used on any layer-3 interface.

Rgds,

Ian

pmirandas Wed, 09/03/2014 - 08:54

Hi Ian,

 

You are telling us that any number (from 0 to 255) can be used (assigned) on any layer 3 interface and that is different to say: I have created, let´s say ...256 different VLANs each one with a VLANIF (layer 3 interface) ... can I create 256 different HSRP groups and assign them to each VLAN in order to deploy gateway high availability on each VLAN? ... maybe I can assign any number from 0 to 255 to any HSRP group, but what I think claude is asking is the maximun number of simultaneous HSRP groups that can be created on the Catalyst 4900. Is there a limit?
 

InayathUlla Sharieff Wed, 09/03/2014 - 09:35

Hi,

For HSRP, there's no software limitation in configuring numbers of HSRP
groups as long as the cpu can handle the software switching hello
packets.

 

You could however enable HSRP version 2 which give support for 4096 groups.
The details about HSRP
version could be found at:

 

 
<http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gthsrpv2.htm
l>
http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gthsrpv2....

 

HTH

REgards

Inayath

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