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?
Luca -----Original Message----- From: chip [mailto:[email protected]] Sent: Tuesday, 30 October 2012 11:17 AM To: Luca Salvatore Cc: [email protected] Subject: Re: [j-nsp] VPLS design - dual homed In VPLS, loop avoidance is arranged by the following rule: A PE never forwards a frame received from a PE, to another PE. The use of a full mesh combined with split horizon forwarding guarantees a loop-free broadcast domain. From: wikipedia http://en.wikipedia.org/wiki/Virtual_Private_LAN_Service#Ethernet_emulation So it's much like ibgp. --chip On Mon, Oct 29, 2012 at 7:19 PM, Luca Salvatore <[email protected]> wrote: > Hi Guys, > > I have a question regarding dual VPLS links. My topology will look like this: > > MX1---------darkfibre----------MX2 > | | > | | > MX3---------darkfibre----------MX4 > > So above you see that there are dual links which will create a loop. > > How does VPLS handle these types of topologies? Do I need to just use > spanning tree and have one link in blocking? > Or perhaps use MSTP and send some VLANs down one link and some down the other? > I will be spanning around 1000 VLANs across these links. They are 10Gb links, > so it seems a shame to have one in a blocking state. > > Any other recommendations? Perhaps M-LAG? > Thanks, > > Luca. > > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp -- Just my $.02, your mileage may vary, batteries not included, etc.... _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
