Re: [c-nsp] EVPN-VPWS PW and AC status coupling
Adam, You're right. I didn't explain it well. PW is UP, but LDP propagates AC status to the other end. Anyway it doesn't look to be supported by EVPNs, which is a pity. Regards On Fri, Feb 9, 2018 at 2:29 PM, wrote: >> 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:: > -- Marco ___ 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/
Re: [c-nsp] EVPN-VPWS PW and AC status coupling
> 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/
[c-nsp] EVPN-VPWS PW and AC status coupling
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? Thank you Regards -- Marco ___ 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/
