Month: July 2013
Cisco Layer 2 Tunneling
To a student of networking the OSI model can be a little hard to appreciate until its application is actually seen a few times in the real world. Likewise understanding that you can grab frames or packets and encapsulate them inside other higher layer protocols is also confusing to the newbie. An Ethernet pseudo-wire is […]
Basic Routing Protocol Configuration in VRF Lite
You may recall me posting a basic conceptual article about VRF’s and VRF lite implementation. Well, I am finally back with some more advanced concepts. What good are separate routing instances without the ability to use routing protocols and share routes between routers? Let’s dive right in and see how it’s done!
Administering EtherChannels
EtherChannels, Port-Channels, or Link Aggregation on Cisco switches is a popular and practical feature. This allows additional capacity to be added to your network without upgrading hardware. Unfortunately, however, it’s not hard to get confused or to cause an accidental network disruption when working with this feature. Before getting down in the weeds with the […]