From: Joel W. Ekis (jekis@xxxxxxxxx)
Date: Tue Mar 28 2000 - 19:51:06 GMT-3
It's doable, but I highly recommend a thorough bug search before rolling this o
ut. There are a number of gotchas with HSRP and ISL.
Joel
At 11:05 AM 3/28/2000 -0500, Ron Johnson wrote:
>
>Is it possible to configure HSRP on a fast ethernet interface performing ISL
>trunking with Catalyst switch? I would like to setup a Cisco 3600 with one
>fast ethernet interface as as HSRP peer with a Cat 5500 Route Switch Module.
>The purpose is to have some sort of redundancy in place in case the route
>switch module fails. Without having an ethernet interface on every VLAN on
>the backup router, would it be possible to setup ISL trunking between the
>backup router and the switch so the router has a virtual interface in each
>VLAN to take over routing functions in case the RSM fails?
>
>Yes.. it would be far easier to have a second switch with another RSM and
>setup HSRP with that. However, my client does
>not want to spend the money to do so yet, and I would like to build some
>redundancy into their new layer 3 switching design.
>Please let me know if this is doable.
>
>Thanks!
>
>-Ron
>
>
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