Anybody have any idea? Thanks and regards, Xu Hu
On 26 Jul, 2012, at 21:43, Xu Hu <[email protected]> wrote: > Hi All, > > Below is the network topology, i ping from CE-2 to CE-1, during i shutdown > the PE-4, have some packet drops. > CE connect to the backbone network using HSRP, the hear beat is through the > CE switch. PE-1 and PE-3 is the active gateway, PE-2 and PE-4 is the standby > one. > > PE equipment running OSPF as IGP, then on the top having MP-iBGP, MPLS VPN, > MPLS TE auto-tunnel. > > Normally i send traffic from CE-2 to CE-1 will use the path > "CE-2>PE-3>PE-1>CE-1". The active tunnel from PE-3 to PE-1 is directly path, > the backup tunnel is path through PE-4 to PE-2 to PE-1. > So when i shutdown the router of PE-4, the active tunnel should be no impact, > but there is some packet drops. Don't understand why. > > Firstly, i think it because of the HSRP, then i ping from PE-3 to CE-1 (Under > vrf) when i shutdown PE-4, but the result is also have packet drops. > So i think is because of backbone network converge. But i am not sure which > part will need to converge. > > <--CE-1--> > | | > | | > | | > PE-1----PE-2 > | | > | | > | | > PE-3----PE-4 > | | > | | > | | > <--CE-2--> > > Will appreciate for any comments. > > Best Regards, > Hu Xu > > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
