> Marco Marzetti > Sent: Friday, February 09, 2018 10:34 AM > > Hello, > > It's been a few weeks I've been working on EVPNs and IOS-XR 6.1 and i > wonder if ther's a way to couple AC and PW status so that you can propagate > PE-CE link failures end-to-end. > > I know it's supported for "regular" EVPNs (RFC7432), but EVPN-VPWS > (RFC8214) is definitely a special case. > > Here's my configuration snippets > > ! > hostname XRV1 > ! > interface GigabitEthernet0/0/0/0.200 l2transport encapsulation dot1q 200 ! > router bgp 64496 > bgp router-id 192.0.2.1 > address-family l2vpn evpn > ! > neighbor 192.0.2.2 > remote-as 64496 > local address 192.0.2.1 > address-family l2vpn evpn > ! > ! > ! > l2vpn > xconnect group test > p2p test > interface GigabitEthernet0/0/0/0.200 > neighbor evpn evi 100 target 300 source 200 > ! > ! > ! > > > ! > hostname XRV2 > ! > interface GigabitEthernet0/0/0/0.300 l2transport encapsulation dot1q 300 ! > router bgp 64496 > bgp router-id 192.0.2.2 > address-family l2vpn evpn > ! > neighbor 192.0.2.1 > remote-as 64496 > local address 192.0.2.2 > address-family l2vpn evpn > ! > ! > ! > l2vpn > xconnect group test > p2p test > interface GigabitEthernet0/0/0/0.300 > neighbor evpn evi 100 target 200 source 300 > ! > ! > ! > > > What i'd expect is XRV1 to turn Gi0/0/0/0.200 down when XRV2 withdraws > the BGP advertisements. > > Is that supported? > Hmm I'm getting a bit rusty on the Carrier-Ethernet stuff but isn't that the other way around? I mean what I remember is that if AC goes down that in turn brings down the PW -but the bit where the PW failure propagating to the other end then in turn brings the AC down on that end too -that one I don't recall to be honest. (Would I need to enable that with some knob first?) And what if the other end is configured with PW-redundancy -in that case I'd need the AC at remote end to stay up and just use the backup PW.
Sure if you run LFM or the whole CFM suite end-to-end, then that could bring down ACs at both ends in case any component along the path fails. adam netconsultings.com ::carrier-class solutions for the telecommunications industry:: _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/