The Multi-Exit Discrimator (MED)

- [Instructor] Time for a look…at the multi-exit discriminator or,…as we like to call it, the MED.…It's one of these things, you mention the MED so often,…people forget what it stands for,…but, again, the name, it's kind of the recipe.…And it's an optional BGP attribute.…You're not going to use this every single time…or set it every single time.…A couple tricky things about it, especially when it comes…to setting the multi-exit discriminator value.…We're going to see all that on the live equipment.…Now, let's take a look at this lab that we're going to run.…And I already have the adjacencies in place,…I've tested those…and we've got a couple of routes advertised.…

I know you know how to do that, so I didn't want…to take time up here on the screen going through that again.…But please note…that we're not using the frame cloud in this lab.…We have direct connections between routers one and three,…direct connections between routers two and three…and routers one, two, and four…are sharing an ethernet segment.…Routers one and three, 172.12.13.0/24.…