Tag Archives: failover

Using Cisco’s EEM for path selection in IPv6 networks

In a previous blog I configured and HSRP pair using an entirely IPv6-oriented topology. I demonstrated the lightning quick failover that can be achieved with carefully crafted timers. However, a careful reader might have noticed that I didn’t consider the path BACK to my source of origin in my topology. So let’s address that today. … Continue reading Using Cisco’s EEM for path selection in IPv6 networks

How to configure gateway redundancy with VRRP in IOS

I recently posted a blog (How to configure gateway redundancy with HSRP in IOS) about how to configure HSRP for gateway redundancy. In that blog I mentioned that there is an alternate protocol which performs the same functionality as HSRP, but it is not Cisco-proprietary. This protocol is Virtual Router Redundancy Protocol (VRRP). Figure 1 … Continue reading How to configure gateway redundancy with VRRP in IOS