[ovs-discuss] MPLS issue in OVS

f 62 mailtov16 at gmail.com
Wed Apr 5 09:29:47 UTC 2017


This is the log of ovs-vswitchd:

2017-04-05T05:45:45.944Z|00205|dpif(handler14)|WARN|system at ovs-system:
failed to put[create] (Invalid argument)
ufid:d62cd3db-17dd-488f-99bc-9da8b7e59c24
recirc_id(0),dp_hash(0/0),skb_priority(0/0),in_port(10),skb_mark(0/0),ct_state(0/0),ct_zone(0/0),ct_mark(0/0),ct_label(0/0),eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd),eth_type(0x0800),ipv4(src=51.0.0.4,dst=51.0.0.13,proto=6,tos=0/0xfc,ttl=64,frag=no),tcp(src=48250,dst=80),tcp_flags(0/0),
actions:set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:48:cd:9e)),set(tunnel(tun_id=0x49,src=192.168.2.91,dst=192.168.2.177,ttl=64,flags(df|key))),push_mpls(label=511,tc=0,ttl=255,bos=1,eth_type=0x8847),9,set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd)),pop_mpls(eth_type=0x800),push_mpls(label=510,tc=0,ttl=254,bos=1,eth_type=0x8847),9
2017-04-05T05:45:45.944Z|00206|dpif(handler14)|WARN|system at ovs-system:
execute
set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:48:cd:9e)),set(tunnel(tun_id=0x49,src=192.168.2.91,dst=192.168.2.177,ttl=64,flags(df|key))),push_mpls(label=511,tc=0,ttl=255,bos=1,eth_type=0x8847),9,set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd)),pop_mpls(eth_type=0x800),push_mpls(label=510,tc=0,ttl=254,bos=1,eth_type=0x8847),9
failed (Invalid argument) on packet
tcp,vlan_tci=0x0000,dl_src=fa:16:3e:7f:19:13,dl_dst=fa:16:3e:78:13:cd,nw_src=51.0.0.4,nw_dst=51.0.0.13,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=48250,tp_dst=80,tcp_flags=syn
tcp_csum:91ac
 mtu 0
2017-04-05T05:45:53.952Z|00207|dpif(handler14)|WARN|system at ovs-system:
failed to put[create] (Invalid argument)
ufid:d62cd3db-17dd-488f-99bc-9da8b7e59c24
recirc_id(0),dp_hash(0/0),skb_priority(0/0),in_port(10),skb_mark(0/0),ct_state(0/0),ct_zone(0/0),ct_mark(0/0),ct_label(0/0),eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd),eth_type(0x0800),ipv4(src=51.0.0.4,dst=51.0.0.13,proto=6,tos=0/0xfc,ttl=64,frag=no),tcp(src=48250,dst=80),tcp_flags(0/0),
actions:set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:48:cd:9e)),set(tunnel(tun_id=0x49,src=192.168.2.91,dst=192.168.2.177,ttl=64,flags(df|key))),push_mpls(label=511,tc=0,ttl=255,bos=1,eth_type=0x8847),9,set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd)),pop_mpls(eth_type=0x800),push_mpls(label=510,tc=0,ttl=254,bos=1,eth_type=0x8847),9
2017-04-05T05:45:53.952Z|00208|dpif(handler14)|WARN|system at ovs-system:
execute
set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:48:cd:9e)),set(tunnel(tun_id=0x49,src=192.168.2.91,dst=192.168.2.177,ttl=64,flags(df|key))),push_mpls(label=511,tc=0,ttl=255,bos=1,eth_type=0x8847),9,set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd)),pop_mpls(eth_type=0x800),push_mpls(label=510,tc=0,ttl=254,bos=1,eth_type=0x8847),9
failed (Invalid argument) on packet
tcp,vlan_tci=0x0000,dl_src=fa:16:3e:7f:19:13,dl_dst=fa:16:3e:78:13:cd,nw_src=51.0.0.4,nw_dst=51.0.0.13,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=48250,tp_dst=80,tcp_flags=syn
tcp_csum:89da
 mtu 0
2017-04-05T05:46:09.984Z|00209|dpif(handler14)|WARN|system at ovs-system:
failed to put[create] (Invalid argument)
ufid:d62cd3db-17dd-488f-99bc-9da8b7e59c24
recirc_id(0),dp_hash(0/0),skb_priority(0/0),in_port(10),skb_mark(0/0),ct_state(0/0),ct_zone(0/0),ct_mark(0/0),ct_label(0/0),eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd),eth_type(0x0800),ipv4(src=51.0.0.4,dst=51.0.0.13,proto=6,tos=0/0xfc,ttl=64,frag=no),tcp(src=48250,dst=80),tcp_flags(0/0),
actions:set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:48:cd:9e)),set(tunnel(tun_id=0x49,src=192.168.2.91,dst=192.168.2.177,ttl=64,flags(df|key))),push_mpls(label=511,tc=0,ttl=255,bos=1,eth_type=0x8847),9,set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd)),pop_mpls(eth_type=0x800),push_mpls(label=510,tc=0,ttl=254,bos=1,eth_type=0x8847),9
2017-04-05T05:46:09.984Z|00210|dpif(handler14)|WARN|system at ovs-system:
execute
set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:48:cd:9e)),set(tunnel(tun_id=0x49,src=192.168.2.91,dst=192.168.2.177,ttl=64,flags(df|key))),push_mpls(label=511,tc=0,ttl=255,bos=1,eth_type=0x8847),9,set(eth(src=fa:16:3e:7f:19:13,dst=fa:16:3e:78:13:cd)),pop_mpls(eth_type=0x800),push_mpls(label=510,tc=0,ttl=254,bos=1,eth_type=0x8847),9
failed (Invalid argument) on packet
tcp,vlan_tci=0x0000,dl_src=fa:16:3e:7f:19:13,dl_dst=fa:16:3e:78:13:cd,nw_src=51.0.0.4,nw_dst=51.0.0.13,nw_tos=0,nw_ecn=0,nw_ttl=64,tp_src=48250,tp_dst=80,tcp_flags=syn
tcp_csum:7a32
 mtu 0



On Wed, Apr 5, 2017 at 10:28 AM, f 62 <mailtov16 at gmail.com> wrote:

> I have configured ovs flows like this on ovs bridge:
>
> 1. cookie=0x0, duration=2261.104s, *table=0*, n_packets=23, n_bytes=1702,
> idle_age=1877, tcp,in_port=8,nw_src=51.0.0.4 actions=group:1,resubmit(8,7)
>
> 2.  group_id=1,type=select,bucket=actions=set_field:fa:16:3e:48:
> cd:9e->eth_dst,resubmit(,5)
>
> 3. cookie=0xb2c6f4127f2f27cc, duration=24849.587s, *table=5*,
> n_packets=303, n_bytes=22830, idle_age=1940, priority=0,ip,dl_dst=fa:16:3e:48:cd:9e
> actions=push_mpls:0x8847,load:0x1ff->OXM_OF_MPLS_LABEL[],set
> _mpls_ttl(255),mod_vlan_vid:3,output:2
>
> 4. cookie=0x0, duration=17142.766s, *table=7*, n_packets=36,
> n_bytes=2664, idle_age=1996, priority=2,ip,dl_dst=fa:16:3e:78:13:cd
> actions=push_mpls:0x8847,load:0x1fe->OXM_OF_MPLS_LABEL[],set
> _mpls_ttl(254),mod_vlan_vid:3,output:2
>
> ovs port:2 is patch port to tunnel bridge (another ovs bridge)
>
> On tunnel bridge, this is the flow:
>
> 5. cookie=0x0, duration=2465.760s, table=22, n_packets=36, n_bytes=2664,
> idle_age=267, priority=1,dl_vlan=3 actions=strip_vlan,load:0x49->
> NXM_NX_TUN_ID[],output:2
>
>
> *If in (3) and (4) I do not set MPLS fields, traffic works as expected.*
> Other relevant info:
> *cat /proc/version*
> Linux version 4.2.0-42-generic (buildd at lgw01-55) (gcc version 4.8.4
> (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #49~14.04.1-Ubuntu SMP Wed Jun 29
> 20:22:11 UTC 2016
>
> *ovs-vswitchd --version*
> ovs-vswitchd (Open vSwitch) 2.6.1
>
> *sudo ovs-dpctl show*
> system at ovs-system:
>     lookups: hit:605248 missed:239296 lost:1270
>     flows: 0
>     masks: hit:1966804 total:1 hit/pkt:2.33
>     port 0: ovs-system (internal)
>     port 1: br-int (internal)
>     port 2: br-ex (internal)
>     port 3: br-tun (internal)
>     port 4: tape79dba01-eb (internal)
>     port 5: qr-fc1d6bca-50 (internal)
>     port 6: qg-27b44ec1-74 (internal)
>     port 7: qr-1dd26eee-a7 (internal)
>     port 8: tap29132628-3d (internal)
>     port 9: vxlan_sys_4789 (vxlan)
>     port 10: tap605a9cd5-98
>     port 11: tapb80b5a72-d7
>     port 12: qr-815256d5-48 (internal)
>     port 13: tap96f28437-46 (internal)
>     port 14: tap2ad1704d-cd
>     port 15: qr-fdfee796-74 (internal)
>     port 16: tapea2cd065-96
>     port 17: tapd75ec3fa-97
>     port 18: tapa8e07edf-0e
>
> *sudo ovs-vsctl show*
> 52d8f41f-ba03-4006-b666-6d36c79f32d2
>     Manager "ptcp:6640:127.0.0.1"
>         is_connected: true
>     Bridge br-ex
>         Controller "tcp:127.0.0.1:6633"
>             is_connected: true
>         fail_mode: secure
>         Port br-ex
>             Interface br-ex
>                 type: internal
>         Port phy-br-ex
>             Interface phy-br-ex
>                 type: patch
>                 options: {peer=int-br-ex}
>     Bridge br-int
>         Controller "tcp:127.0.0.1:6633"
>             is_connected: true
>         fail_mode: secure
>         Port "tap96f28437-46"
>             tag: 4
>             Interface "tap96f28437-46"
>                 type: internal
>         Port patch-tun
>             Interface patch-tun
>                 type: patch
>                 options: {peer=patch-int}
>         Port "tap29132628-3d"
>             tag: 3
>             Interface "tap29132628-3d"
>                 type: internal
>         Port "qr-fc1d6bca-50"
>             tag: 1
>             Interface "qr-fc1d6bca-50"
>                 type: internal
>         Port "qr-815256d5-48"
>             tag: 3
>             Interface "qr-815256d5-48"
>                 type: internal
>         Port "qg-27b44ec1-74"
>             tag: 2
>             Interface "qg-27b44ec1-74"
>                 type: internal
>         Port int-br-ex
>             Interface int-br-ex
>                 type: patch
>                 options: {peer=phy-br-ex}
>         Port "tapea2cd065-96"
>             tag: 3
>             Interface "tapea2cd065-96"
>         Port "tap605a9cd5-98"
>             tag: 3
>             Interface "tap605a9cd5-98"
>         Port "tap2ad1704d-cd"
>             tag: 4
>             Interface "tap2ad1704d-cd"
>         Port br-int
>             Interface br-int
>                 type: internal
>         Port "tapa8e07edf-0e"
>             tag: 3
>             Interface "tapa8e07edf-0e"
>         Port "tape79dba01-eb"
>             tag: 1
>             Interface "tape79dba01-eb"
>                 type: internal
>         Port "qr-1dd26eee-a7"
>             tag: 1
>             Interface "qr-1dd26eee-a7"
>                 type: internal
>         Port "qr-fdfee796-74"
>             tag: 4
>             Interface "qr-fdfee796-74"
>                 type: internal
>         Port "tapb80b5a72-d7"
>             tag: 3
>             Interface "tapb80b5a72-d7"
>         Port "tapd75ec3fa-97"
>             tag: 3
>             Interface "tapd75ec3fa-97"
>     Bridge br-tun
>         Controller "tcp:127.0.0.1:6633"
>             is_connected: true
>         fail_mode: secure
>         Port patch-int
>             Interface patch-int
>                 type: patch
>                 options: {peer=patch-tun}
>         Port br-tun
>             Interface br-tun
>                 type: internal
>         Port "vxlan-c0a802b1"
>             Interface "vxlan-c0a802b1"
>                 type: vxlan
>                 options: {df_default="true", in_key=flow,
> local_ip="192.168.2.91", out_key=flow, remote_ip="192.168.2.177"}
>     ovs_version: "2.6.1"
>
>
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