[j-nsp] VPLS design - dual homed

[Luca Salvatore]

Right.  So BGP needs to be full meshed also for this to work right?


Luca


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Ben Dale
Sent: Tuesday, 30 October 2012 12:22 PM
Cc: juniper-nsp at puck.nether.net nsp
Subject: Re: [j-nsp] VPLS design - dual homed



> My topology is a bit different though... There is no 'service provider' cloud between my MX routers.
> They are directly connected via dark fibre. Does the split horizon rule come into play here?

It does - although the physical topology looks like a ring, remember that it will be all L3 P2P links, with the VPLS overlay sitting over the top on fully-meshed LSPs making it look more like:

MX1-------MX2
 | \      /|
 |  \    / |
 |   \  /  |
 |    \/   |
 |    /\   |
 |   /  \  |
 |  /    \ |
 | /      \|
MX3-------MX4

(switch to fixed-width fonts ; )

Split-horizon will take care of the rest.

Ben
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