Hi Jakub, Please look at the real hex value of the MPLS label. Is it zero? The decoder considers last 4 bits as ToS, BoS, and that’s not valid for VxLAN.
Cheers, Ato From: Jakub Pavlik <[email protected]> Date: Tuesday, 2 August 2016 at 18:44 To: Antonio Sanchez-Monge <[email protected]> Cc: "[email protected]" <[email protected]>, Marek Čeloud <[email protected]>, Lichner Ivan <[email protected]> Subject: Re: [opencontrail-dev] Contrail EVPN VXLAN on Cisco ASR9006 Hi Ato, I downloaded official 3.0.2 and it behaves same with VXLAN User Configured. When I switched to Automatic, it starts to send appropriate VNI as Ethernet tag id, but MPLS label is still 0. Should we see VNI tag under MPLS label in Wireshark? Can you send us your capture? Thanks Jakub Odesláno z iPadu 2. 8. 2016 v 0:49, Antonio Sanchez-Monge <[email protected]<mailto:[email protected]>>: Hi Jakub, First let me clarify one thing. I had written: “In that case I think MPLS label 0 is normal but Ethernet Tag should be different from zero, and it is zero.” This is wrong. MPLS label 0 is not normal. I checked with our expert and also did some tests. In all my tests with 3.0.2, both Ethernet tag and MPLS label are set to the same non-zero value. This is true both for floating IP and for non-floating. So what you are seeing in the tcpdump (MPLS label 0, Ethernet tag 0...) doesn’t look normal. There may be something specific to your setup. Would you try to create it from scratch? Please check the route in the control node introspect (TCP port 8083) and see in the bgp.evpn.0 table what label value the route has. Cheers, Ato From: Antonio Sanchez-Monge <[email protected]<mailto:[email protected]>> Date: Monday, 1 August 2016 at 23:38 To: Jakub Pavlik <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Cc: Marek Čeloud <[email protected]<mailto:[email protected]>>, Lichner Ivan <[email protected]<mailto:[email protected]>> Subject: Re: [opencontrail-dev] Contrail EVPN VXLAN on Cisco ASR9006 Might be specific of floating IP pool, will have a look tomorrow. From: Jakub Pavlik <[email protected]<mailto:[email protected]>> Date: Monday, 1 August 2016 at 23:28 To: Antonio Sanchez-Monge <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Cc: Marek Čeloud <[email protected]<mailto:[email protected]>>, Lichner Ivan <[email protected]<mailto:[email protected]>> Subject: Re: [opencontrail-dev] Contrail EVPN VXLAN on Cisco ASR9006 Antonio, yes, we have VXLAN encapsulation priority and Indetifier Mode is User Configured. It is floating ip pool with VNI 64512 and Route Target 64512:64512 Jakub On 1.8.2016 23:25, Antonio Sanchez-Monge wrote: Hi Jakub, I guess under “Configure > Infrastructure > Global Config > Forwarding Options > Encapsulation Priority Order” you have VXLAN on top, right? In that case I think MPLS label 0 is normal but Ethernet Tag should be different from zero, and it is zero. What is VxLAN Identifier Mode set to? How is the VN configured? What VNI does it have? Cheers, Ato From: Jakub Pavlik <[email protected]><mailto:[email protected]> Date: Monday, 1 August 2016 at 23:09 To: Antonio Sanchez-Monge <[email protected]><mailto:[email protected]>, "[email protected]"<mailto:[email protected]> <[email protected]><mailto:[email protected]> Cc: Marek Čeloud <[email protected]><mailto:[email protected]>, Lichner Ivan <[email protected]><mailto:[email protected]> Subject: Re: [opencontrail-dev] Contrail EVPN VXLAN on Cisco ASR9006 Hi Antonio, thanks for quick reply! I will try to do change type. It is Contrail 3.0.2 (3 weeks old build). Thanks a lot! Jakub On 1.8.2016 23:06, Antonio Sanchez-Monge wrote: Hi Jakub, Cisco is sending Type 5 (IP Prefix) EVPN routes that we don’t support. Do you know if there is any way to configure IOS XR so it does generate IP/MAC (Type 2) EVPN routes instead? As for the MPLS Label Stack set to 0 by Contrail, what version are you running? Cheers, Ato From: Dev <[email protected]><mailto:[email protected]> on behalf of Jakub Pavlik <[email protected]><mailto:[email protected]> Date: Monday, 1 August 2016 at 22:44 To: "[email protected]"<mailto:[email protected]> <[email protected]><mailto:[email protected]> Cc: Marek Čeloud <[email protected]><mailto:[email protected]>, Lichner Ivan <[email protected]><mailto:[email protected]> Subject: Re: [opencontrail-dev] Contrail EVPN VXLAN on Cisco ASR9006 There is also log from Cisco box: RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr]: UPDATE from 10.171.20.72 contains nh 10.171.20.30/32, gw_afi 0, flags 0x0, nlri_afi 14 RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr]: NH-Validate-Create: addr=10.171.20.30/32, len=4, nlriafi=14, nbr=10.171.20.72, gwafi=0, gwlen=4, gwaddrlen=32::: nhout=0x10a52970, validity=1, attrwdrflags=0x00000000 RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr]: --bgp4_rcv_attributes--: END: nbr=10.171.20.72:: msg=0x10043cc0/138, updlen=119, attrbl =0x10043cd7/115, ipv4reachlen=0, msginpath=0x3df0ba0, asloopcheck=1, attrwdrfl=0x00000000:: samecluster=0, local_as_prepended=0, attr_wdr_flags 0x0000 0000, myascount=0:: rcvdata=0x10043d4a/0, errptr=0x10043d16/52 RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr] (l2evpn): Received UPDATE from 10.171.20.72 with attributes: RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr] (l2evpn): nexthop 10.171.20.30/32, origin ?, localpref 200, metric 100, originator 10.17 1.20.30, extended community Encapsulation Type:8 0x8071:0xfc:0x00:0x00:0x00:0x00:0x04 RT:64512:64512 RT:64512:8000004 RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr] (l2evpn): Received prefix v4Addr:10.171.20.30:2:[2][0][48][02b2.de4a.7e30][32][10.167.0. 4]/136 (path ID: none) with MPLS label 0 from neighbor 10.171.20.72 RP/0/RSP0/CPU0:Aug 2 20:36:49.681 : bgp[1058]: [default-rtr] (l2evpn): Prefix v4Addr:10.171.20.30:2:[2][0][48][02b2.de4a.7e30][32][10.167.0.4]/136 (p ath ID: none) received from 10.171.20.72 DENIED RT extended community is not imported locally On 1.8.2016 22:39, Jakub Pavlik wrote: Hello all, does anybody tested Contrail 3.X with Cisco ASR9006 IOS XR Software, Version 5.3.3 with EVPN VxLAN? We are trying to run EVPN. BGP peering is established, but there is mismatch in BGP update messages. We are getting this from contrail controller: 2016-08-01 Mon 16:45:35:074.937 CEST ntw01 [Thread 140320977651456, Pid 8325]: BGP [SYS_WARN]: BgpPeerMessageLog: BGP Peer default-domain:default-pro ject:ip-fabric:__default__:ntw01:default-domain:default-project:ip-fabric:__default__:ASR9006-1 RECV MP NLRI parse error for e-vpn route controller/sr c/bgp/bgp_peer.cc 1178 I attached also captured tcpdump files with update messages from contrail to cisco (contrail) and from cisco to contrail (cisco). Thanks, Jakub _______________________________________________ Dev mailing list [email protected]<mailto:[email protected]> http://lists.opencontrail.org/mailman/listinfo/dev_lists.opencontrail.org -- Jakub Pavlik CTO [tcp ◕ cloud] +420 602 177 027 [email protected]<mailto:[email protected]> tcp cloud a.s. Thamova 16 186 00 Praha 8 - Karlin Czech republic http://tcpcloud.eu http://opentcpcloud.org -- Jakub Pavlik CTO [tcp ◕ cloud] +420 602 177 027 [email protected]<mailto:[email protected]> tcp cloud a.s. Thamova 16 186 00 Praha 8 - Karlin Czech republic http://tcpcloud.eu http://opentcpcloud.org -- Jakub Pavlik CTO [tcp ◕ cloud] +420 602 177 027 [email protected]<mailto:[email protected]> tcp cloud a.s. Thamova 16 186 00 Praha 8 - Karlin Czech republic http://tcpcloud.eu http://opentcpcloud.org _______________________________________________ Dev mailing list [email protected]<mailto:[email protected]> http://lists.opencontrail.org/mailman/listinfo/dev_lists.opencontrail.org
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