[AusNOG] Vyos - OSPF Flapping

Fri Jan 27 16:43:17 EST 2017

Hi All,

Happy new year to everyone!!!

I have an odd issue with a vyos deployment running OSPF, for some reason the OSPF instance keeps flapping and by flapping it drops all routes then goes through with the SFP process this happens every 1-2 times an hour on both physical links facing the network we have about 4 other peers in the area and they run without any issues however they are cisco routers and not a vyos instance.

I have deployed and management vyos routers for over a couple of years now first time every running into an issue like this.

I have checked IGMP flooding I understand OSPF does not join a multicast group this feature is currently disabled on layer 2 has not made any difference.

Anyone else come across this problem? I've run out of ideas!

.199 is the virtual vyos router (loopback interface)
.70 And .102 is the physically connected interfaces on the virtual firewall

The rest are ip addresses of the neighbouring routers that are part of the same ospf area.

Any feedback would be great. Please relay back offline don't want to flood the list with a massive email chain.

Here is a snip of the debugging:

Jan 27 05:15:12 noc-fw1 ospfd[2435]: LSA[Type2:103.77.70.69]: 0x1893e60 new LSA created with Link State Update
Jan 27 05:15:12 noc-fw1 ospfd[2435]: LSA[Flooding]: start, NBR 103.77.70.196 (Full), cur(0x1893b50), New-LSA[Type2,id(103.77.70.69),ar(103.77.70.196)]
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int lo:103.77.70.199, INBR(103.77.70.196), LSA[Type2,id(103.77.70.69),ar(103.77.70.196)]
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int eth1:103.77.70.102, INBR(103.77.70.196), LSA[Type2,id(103.77.70.69),ar(103.77.70.196)]
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.192 (2-Way)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.193 (2-Way)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.198 (Full)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.196 (Full)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.199 (2-Way)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int eth0:103.77.70.70, INBR(103.77.70.196), LSA[Type2,id(103.77.70.69),ar(103.77.70.196)]
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.192 (2-Way)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.193 (2-Way)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.197 (Full)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.196 (Full)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.199 (2-Way)
Jan 27 05:15:12 noc-fw1 ospfd[2435]: LSA[Type2:103.77.70.69]: 0x1893b50 new LSA created with Link State Update
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_lsa_discard() in ospf_ls_upd() point 6: lsa 0x1893b50 Type-2
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_ls_upd_send_queue start
Jan 27 05:15:12 noc-fw1 ospfd[2435]: listcount = 1, dst 224.0.0.6
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_make_ls_upd: Start
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_make_ls_upd: List Iteration
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_make_ls_upd: Stop
Jan 27 05:15:12 noc-fw1 ospfd[2435]: ospf_ls_upd_send_queue stop
Jan 27 05:15:13 noc-fw1 ospfd[2435]: Packet 103.77.70.196 [Hello:RECV]: Options *|-|-|-|-|-|E|*
Jan 27 05:15:13 noc-fw1 ospfd[2435]: Packet 103.77.70.193 [Hello:RECV]: Options *|-|-|EA|-|-|E|*
Jan 27 05:15:14 noc-fw1 ospfd[2435]: Packet 103.77.70.192 [Hello:RECV]: Options *|-|-|EA|-|-|E|*
Jan 27 05:15:15 noc-fw1 ospfd[2435]: Packet 103.77.70.192 [Hello:RECV]: Options *|-|-|EA|-|-|E|*
Jan 27 05:15:18 noc-fw1 ospfd[2435]: Packet 103.77.70.197 [Hello:RECV]: Options *|-|-|EA|-|-|E|*
Jan 27 05:15:20 noc-fw1 ospfd[2435]: Packet 103.77.70.198 [Hello:RECV]: Options *|-|-|EA|-|-|E|*
Jan 27 05:15:20 noc-fw1 ospfd[2435]: make_hello: options: 2, int: eth1:103.77.70.102
Jan 27 05:15:20 noc-fw1 ospfd[2435]: make_hello: options: 2, int: eth0:103.77.70.70
Jan 27 05:15:20 noc-fw1 ospfd[2435]: LSA[Type1:103.77.70.196]: 0x188aab0 new LSA created with Link State Update
Jan 27 05:15:20 noc-fw1 ospfd[2435]: LSA[Type2:103.77.70.101]: 0x1890960 new LSA created with Link State Update
Jan 27 05:15:20 noc-fw1 ospfd[2435]: LSA[Flooding]: start, NBR 103.77.70.196 (Full), cur(0x188c5c0), New-LSA[Type1,id(103.77.70.196),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int lo:103.77.70.199, INBR(103.77.70.196), LSA[Type1,id(103.77.70.196),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int eth1:103.77.70.102, INBR(103.77.70.196), LSA[Type1,id(103.77.70.196),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.192 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.193 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.198 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.196 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.199 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int eth0:103.77.70.70, INBR(103.77.70.196), LSA[Type1,id(103.77.70.196),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.192 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.193 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.197 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.196 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.199 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: LSA[Flooding]: start, NBR 103.77.70.196 (Full), cur(0x1888350), New-LSA[Type2,id(103.77.70.101),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int lo:103.77.70.199, INBR(103.77.70.196), LSA[Type2,id(103.77.70.101),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int eth1:103.77.70.102, INBR(103.77.70.196), LSA[Type2,id(103.77.70.101),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.192 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.193 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.198 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.196 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.199 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering int eth0:103.77.70.70, INBR(103.77.70.196), LSA[Type2,id(103.77.70.101),ar(103.77.70.196)]
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.192 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.193 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.197 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.196 (Full)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_flood_through_interface(): considering nbr 103.77.70.199 (2-Way)
Jan 27 05:15:20 noc-fw1 ospfd[2435]: LSA[Type1:103.77.70.196]: 0x1888350 new LSA created with Link State Update
Jan 27 05:15:20 noc-fw1 ospfd[2435]: LSA[Type2:103.77.70.101]: 0x1893a50 new LSA created with Link State Update
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_lsa_discard() in ospf_ls_upd() point 6: lsa 0x1888350 Type-1
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_lsa_discard() in ospf_ls_upd() point 6: lsa 0x1893a50 Type-2
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_ls_upd_send_queue start
Jan 27 05:15:20 noc-fw1 ospfd[2435]: listcount = 2, dst 224.0.0.6
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_make_ls_upd: Start
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_make_ls_upd: List Iteration
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_make_ls_upd: List Iteration
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_make_ls_upd: Stop
Jan 27 05:15:20 noc-fw1 ospfd[2435]: ospf_ls_upd_send_queue stop

Thanks in advanced

Regards,
Murat Sener
-- 
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