Default Gateway Redundancy in High Availability Campus

[ifabrizio]

Dear All,

I have a Lan composed in this way:

Core ---> Distribution/Access Layer.

I have setup 21 Vlan one for each department.

In order to provide default gateway reduntancy for clients, I have configured HSRP standby ip for each Vlan among the two Cores switch.

For the core I have used the 3750E (it is a small network) now the problem is that the platform do not support more than 32 HSRP groups!

Do you have any suggestion to avoid this kind of  problem ?

Thanks & Regards,

Igor.

[cadet alain]

Hi,

You have 21 VLANs total and one HSRP group/VLAN so 21 HSRP groups and the limit is 32 so you are way below the limit, so I don't understand the problem?

Regards.

Alain.

[ifabrizio]

So do I...

I have 21 Vlan but if i Try to configure a new one with HSRP i got the message above...

The IOS is the 12.2(20)SE4, could be a release problem?

Best regards,

Igor.

[ifabrizio]

Now I know why I got the message about the maximum of 32 HSRP group reached...The number 32 must be divided for the two core, so a maximum of 16 HSRP group for each Core.

I have choose to use HSRP in order to provide default Gateway redundancy for the clients in each vlan.

There is another way to do it?

Best regards,

Igor.

[rastaman2]

Hello Igor,

from what I know, VRRP supports up to 255 groups, maybe you can solve your problem with VRRP?

Kind Regards

Tom

[ifabrizio]

Hi Tom,

I'd like touse VRRP, but if i am not wrong, the 3750 doesn' t support it