Everything went wrong this last weekend, I was a bit sick with fever and all this kind of stuff, and spent more time in bed, than actually doing anything else... That delayed me a little, I had plans to complete Workbook Volume 1 labs 3 and 4 this weekend but that wasn´t possible!
Today I´m better, really better, and in my lunch time I reviewed IPExpert CCIE R&S BLS Bridging Video. Nice topic, this is something we don´t get to see every day! In fact... I´ve never saw anything actually "bridged" in a network, and even it´s not on blueprint anymore we can still having some IRB Bridging. So I´ll spent more time on that for sure!
Couple quick notes I was able to get from the Video:
Basic job of a bridge is to bring things together, transparent bridging does that using the same media type, same MTU size, nothing changes!
Bridging on Routers:
Setup the basic bridge function:
- Bridge 1 protocol ieee
Then bind to interfaces:
- Bridge-group 1
If Frame-Relay is in the middle:
- Frame-relay map bridge <DLCI>
Integrated Routing & Bridging:
Allows selective routing some protocols while bridging others:
Enable Bridge IRB in a router:
- Bridge irb
Configure a BVI (Bridging Virtual Interface):
- Interface bvi 1
- ip address <address> <mask>
Create our "rules", in other words tell bridge-group 1 to route IP.
- Bridge 1 route ip
Interfaces in middle simply have bridging.
A cool command to verify if everything is working (AFTER ping testing):
- Show bridge 1 verbose
It seens a little confuse, but with the example showed in the Video on Demand you´re able to get it! I´ll try to create a Dynamips topology to simulate a bridging scenario and post back later, to clarify things a bit better either for you reading this, and for me! :)