can you check the gateway configured in contrail-vrouter-agent.conf file for TSN node.
Tcpdump output shows a different dest mac addr for outer header for reaponse pkt, pointing out that gateway might be configured wrongly on TSN Regards Prabhjot On Monday, October 9, 2017, Vasyl Saienko <[email protected]> wrote: > Hello community, > > I'm trying to connect BMs to contrail network as described here [0]. I'm > using the following versions: > > OpenContrail - 3.1.1 > QFX 5100 - QFX5100-48S-6Q (JunOS 14.1X53-D45.3) > > I have 1 VM (ip: 10.20.30.68 mac: 02:46:d6:34:c0:b0) running on compute > node (compute node ip: 172.16.175.103). And 1 BM (mac: ac:de:48:6b:e4:e4 > ip: 10.20.30.11) connected to ToR (BM interface: xe-0/0/1, ovsdb > tunnel/management IP: 192.168.10.1). VTEPs are being created fine on ToR > switch to both compute nodes and ToR. Tunnel between ToR and TSN (tunnel > ip: 172.16.175.61) is up, > When try to ping VM from BM or vice versa failed on ARP resolution. When I > add static ARP entries ping works. On TSN node I see both arp requests from > BM and replies to BM, but for unknown reason they never reach BM. > > If you have any ideas why it may happen please help. > > > Links: > [0] https://www.juniper.net/documentation/en_US/contrail2. > 2/topics/concept/using-tor-ovsdb-contrail.html > > [1] Debug ToR: > > tcpdump on TSN node: > > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on bond0.30, link-type EN10MB (Ethernet), capture size 262144 bytes > 08:57:55.711029 64:64:9b:49:a1:00 > 0c:c4:7a:6c:89:6d, ethertype IPv4 > (0x0800), length 106: 192.168.10.1.45105 > 172.16.175.61.4789: VXLAN, flags > [I] (0x08), vni 8 > ac:de:48:6b:e4:e4 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: > Request who-has 10.20.30.68 tell 10.20.30.11, length 42 > 08:57:55.711065 0c:c4:7a:6c:89:6d > 64:64:9b:45:19:00, ethertype IPv4 > (0x0800), length 106: 172.16.175.61.65326 > 192.168.10.1.4789: VXLAN, flags > [I] (0x08), vni 8 > 02:46:d6:34:c0:b0 > ac:de:48:6b:e4:e4, ethertype ARP (0x0806), length 56: > Reply 10.20.30.68 is-at 02:46:d6:34:c0:b0, length 42 > 08:57:56.735108 64:64:9b:49:a1:00 > 0c:c4:7a:6c:89:6d, ethertype IPv4 > (0x0800), length 106: 192.168.10.1.45105 > 172.16.175.61.4789: VXLAN, flags > [I] (0x08), vni 8 > ac:de:48:6b:e4:e4 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 56: > Request who-has 10.20.30.68 tell 10.20.30.11, length 42 > 08:57:56.735165 0c:c4:7a:6c:89:6d > 64:64:9b:45:19:00, ethertype IPv4 > (0x0800), length 106: 172.16.175.61.65326 > 192.168.10.1.4789: VXLAN, flags > [I] (0x08), vni 8 > 02:46:d6:34:c0:b0 > ac:de:48:6b:e4:e4, ethertype ARP (0x0806), length 56: > Reply 10.20.30.68 is-at 02:46:d6:34:c0:b0, length 42 > > tunnel status on ToR: > > engineer@cz-eth1605-4-1> show ovsdb virtual-tunnel-end-point > Encapsulation Ip Address Num of MAC's > VXLAN over IPv4 172.16.175.61 1 > VXLAN over IPv4 172.16.175.101 1 > VXLAN over IPv4 172.16.175.103 1 > VXLAN over IPv4 192.168.10.1 2 > > engineer@cz-eth1605-4-1> show ethernet-switching vxlan-tunnel-end-point remote > Logical System Name Id SVTEP-IP IFL L3-Idx > <default> 0 192.168.10.1 lo0.0 0 > RVTEP-IP IFL-Idx NH-Id > 172.16.175.61 586 1828 > VNID MC-Group-IP > 8 0.0.0.0 * > RVTEP-IP IFL-Idx NH-Id > 172.16.175.101 585 1827 > VNID MC-Group-IP > 8 0.0.0.0 > RVTEP-IP IFL-Idx NH-Id > 172.16.175.103 561 1787 > VNID MC-Group-IP > 8 0.0.0.0 > > engineer@cz-eth1605-4-1> show ovsdb mac local > Logical Switch Name: Contrail-2b141da7-db89-49a5-9120-fb5289807061 > Mac IP Encapsulation Vtep > Address Address Address > ff:ff:ff:ff:ff:ff 0.0.0.0 Vxlan over Ipv4 192.168.10.1 > ac:de:48:6b:e4:e4 0.0.0.0 Vxlan over Ipv4 192.168.10.1 > > {master:0} > engineer@cz-eth1605-4-1> show ovsdb statistics interface xe-0/0/1 > Interface Name: xe-0/0/1.40 > Num of rx pkts: 0 Num of tx pkts: 0 > Num of rx bytes: 0 Num of tx bytes: 0 > > engineer@cz-eth1605-4-1> show ethernet-switching table > > MAC flags (S - static MAC, D - dynamic MAC, L - locally learned, P - > Persistent static > SE - statistics enabled, NM - non configured MAC, R - remote PE > MAC, O - ovsdb MAC) > > > Ethernet switching table : 3 entries, 3 learned > Routing instance : default-switch > Vlan MAC MAC Age Logical > name address flags interface > Contrail-2b141da7-db89-49a5-9120-fb5289807061 02:46:d6:34:c0:b0 DO > - vtep.32769 > Contrail-2b141da7-db89-49a5-9120-fb5289807061 02:fd:33:d3:1e:d9 DO > - vtep.32770 > Contrail-2b141da7-db89-49a5-9120-fb5289807061 ac:de:48:6b:e4:e4 D - > xe-0/0/1.40 > > MAC flags (S - static MAC, D - dynamic MAC, L - locally learned, P - > Persistent static > SE - statistics enabled, NM - non configured MAC, R - remote PE > MAC, O - ovsdb MAC) > > engineer@cz-eth1605-4-1> show ovsdb mac > Logical Switch Name: Contrail-2b141da7-db89-49a5-9120-fb5289807061 > Mac IP Encapsulation Vtep > Address Address Address > ff:ff:ff:ff:ff:ff 0.0.0.0 Vxlan over Ipv4 192.168.10.1 > ac:de:48:6b:e4:e4 0.0.0.0 Vxlan over Ipv4 192.168.10.1 > 02:46:d6:34:c0:b0 0.0.0.0 Vxlan over Ipv4 172.16.175.103 > 02:fd:33:d3:1e:d9 0.0.0.0 Vxlan over Ipv4 172.16.175.101 > ff:ff:ff:ff:ff:ff 0.0.0.0 Vxlan over Ipv4 172.16.175.61 > > > engineer@cz-eth1605-4-1> ping overlay vni 8 tunnel-type vxlan count 1 > tunnel-dst 172.16.175.61 tunnel-src 192.168.10.1 > > ping-overlay protocol vxlan > > vni 8 > tunnel src ip 192.168.10.1 > tunnel dst ip 172.16.175.61 > mac address 00:00:00:00:00:00 > count 1 > ttl 255 > > WARNING: following hash-parameters are missing - > hash computation may not succeed > > end-host smac > end-host dmac > end-host src ip > end-host dst ip > end-host input-ifd-idx > end-host protocol > end-host l4-src-port > end-host l4-dst-port > > Request for seq 1, to 172.16.175.61, at Oct 04 2017 20:09:02.861 MSK > Response for seq 1, from 172.16.175.61, at Apr 24 1988 00:35:12.-992605440 > MSD, rtt 22 msecs > > Overlay-segment present at RVTEP 172.16.175.61 > > > > >
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