Detect Network Failure using EEM and Traceroute

Cisco IOS Embedded Event Manager (EEM) is very useful automation tool particularly in detecting network failures. In this post, I’m going to show you how to leverage EEM and traceroute to detect this issue. The network topology we are using is in the figure.

Let say for example, R7 and R8 are the routers you […]

Ping and Traceroute: Routing Loop Solved

[tweetmeme]This is the first time I encountered this issue in real world. This happened when I deployed multiple sites that were connected through VPN in a hub and spoke topology. The main site has a leased line which terminates the VPN tunnel, mail and other hosted services. Also it has ADSL link which intended for […]