Hi, I have looked at this issue too, but your solution has one major flaw...
Q: What would happen if the VPLS circuits go down in the core network, And then came back up ? A: You have a loop, until spanning tree notices.... Flexlink seems more usable.... Med venlig hilsen/Kind regards Peter Åris Krüpl Netværksspecialist -----Oprindelig meddelelse----- Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] På vegne af [EMAIL PROTECTED] Sendt: 25. juli 2007 17:33 Til: [EMAIL PROTECTED] Cc: [email protected] Emne: Re: [c-nsp] Dual-Homed VPLS Hi Eric, Exactly. As PE would forward Spanning tree BPDUs transparently, I am considering STP is also an option to block a link. For example: CE1-A_(fa-1/1)--------------- PE1=======PE2---------CE2-A (STP ROOT) | \ / (fa-1/2) \ / |_________________________ \ / PE3 Considering CE2-A is STP root, CE1-A would receive BPDU from both interfaces, would choose fa1/1 as RP and would block fa1/2. What do you think? I hope we receive more feedback. Best Regards, Alaerte -----Original Message----- From: ext Eric Helm [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 25, 2007 12:15 PM To: Vidali Alaerte (NSN - BR/Rio de Janeiro) Subject: Re: [c-nsp] Dual-Homed VPLS Alaerte... Are you talking about dual-homed VPLS endpoints? If so, I'd be curious to hear what suggestions you receive for this topic. When I looked into doing this, it seemed that using Flex-Links was the only viable solution. Regards, /Eric [EMAIL PROTECTED] wrote: > Hi, > > Do you indicate any reference for this topic? > > I tried some books like "MPLS Configuration on Cisco IOS Software" > (pretty good book) by Lancy and Umesh, but it only touch the subject. > > Tks, > Alaerte > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
