IP Routing and Switching

So, this week Pearson Vue made an announcement that they had been victim of a malicious intrusion of their certification system - specifical...

Multi-Exit Discriminator (MED) is also known as the metric of BGP - it is labeled metric in the show ip bgp output. It is an optional nontr...

Confederation is another solution to the iBGP full-mesh requirement. It is a more comprehensive change than implementing route reflectors to...

Ever done a traceroute from one Cisco router to another and wondered why the second slot, on the final hop, shows an '*' instead of ...

When using BGP, it is possible to filter out routes using a special kind of access-list called an as-path access-list. This allows for match...

Aggregating routes is useful to reduce the size of the routing tables by grouping several routes into smaller, less specific routes. In this...

Communities in BGP is kind of like peer groups, but for routes. It allows for the grouping of routes that share same characteristics and tha...