HSRP Configuration

[Jerome J.]

Hi, currently we have single Layer 3 switch which is also the gateway of all our VLAN's. We're planning to implement a secondary Layer 3 switch with HSRP. My question is can I configure HSRP with a dummy routed port or dummy SVI and configure the HSRP there?

Thanks!

[Georg Pauwen]

Hello,

not sure what you mean by dummy routed port. The HSRP standby IP address needs to be the default gateway for your clients.

What do you wan to achieve ?

[Jerome J.]

Say we have 1 VLAN/SVI
interface vlan10
ip address 192.168.1.1 255.255.255.0

We would like to implement HSRP but in order to do this we have to assign other ip address on the SVI and make the 192.168.1.1 as the virtual IP. My question is, say were out of available IP address to assign to the SVI, can I create another SVI and configure the HSRP there even if no client will use that gateway?

[Georg Pauwen]

Hello,

a default gateway (standby IP) that wouldn't be used by any client would defeat the purpose of HSRP, so that sounds like a flawd design...

[ip_guy]

Hello Jardinero,

What do you mean under dummy router port or dummy SVI? There are "dummy" switches that don't have possibility for HSRP. In best case you should have one more L3 switch so you can properly configure one of FHRP protocols.

Cheers,

Milos

[Jerome J.]

Say i have 2 SVI.
Interface vlan 10
Ip address 192.168.10.1 255.255.255.0

Interface vlan 20
Ip address 192.168.20.1 255.255.255.0

I dont want to configure HSRP on one of these SVI's since I will be forced to assign different IP address make the 192.168.10.1 as the virtual IP of the HSRP. Now my question is can I just make a dummy SVI and configure the HSRP there?

[mkazam001]

basic hsrp config under routed port, can also do under SVI:

interface *

 no switchport

 ip address 192.168.1.1 255.255.255.0

 standby 1 ip 192.168.1.254

 standby 1 priority x       

 standby 1 preempt

where .254 is the default gateway & 100 is default priority

regards, mk

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