Help with OSPF

RouterOS Forwarding Protocols
1

Hi guys,

We have a large wireless network(we are a ISP). We have OSPF running across our whole network. That part runs fine, the issue we having is that we have installed a new high site with 2 wireless links out. At the site it is a RB433AH as the backbone(with the wireless links) and the client routerboard(433AH with sectors connected) they are linked via ether. If we enable OSPF on the ether link and the wireless links, we get heavy packet loss(50%+) to the ether IP’s, the IP’s assigned to the wireless is fine.(P.S. its all /30’s) If we disable OSPF and static route the /30’s from the nearest OSPF mikrotik, the pings stablise, and we get no packet loss.

We only use one area(default) and config is :

router-id: 172.16.1.134
distribute-default: never
redistribute-connected: as-type-2
redistribute-static: as-type-1
redistribute-rip: no
redistribute-bgp: no
metric-default: 1
metric-connected: 20
metric-static: 20
metric-rip: 20
metric-bgp: 20
mpls-te-area: unspecified
mpls-te-router-id: unspecified

Does anyone have a clue on what the problem is?

2

Enable ospf logs and see what is going on. It looks like ospf is loosing routes.

3

This is the log file of the BB-board:
00:07:27 route,ospf,debug,raw FE CD 00 00 00 00 00 00 00 00 00 00 00 00 00 01

00:07:27 route,ospf,debug,raw 0E 10 02 05 AC 10 01 88 AC 10 01 86 80 00 00 86

00:07:27 route,ospf,debug,raw 64 CD 00 24 FF FF FF FC 00 00 00 14 00 00 00 00

00:07:27 route,ospf,debug,raw 00 00 00 00
00:07:27 route,ospf,debug Received update of a self-originated LSA
00:07:27 route,ospf,debug type=AS-External LSA
00:07:27 route,ospf,debug Refresh an LSA
00:07:27 route,ospf,debug lsa=AS-External LSA id=172.16.1.136 originator=172.
16.1.134 seqnum=0x80000086
00:07:27 route,ospf,debug new seqnum=80000086
00:07:27 route,ospf,debug Installing an LSA
00:07:27 route,ospf,debug lsa=AS-External LSA id=172.16.1.136 originator=172.
16.1.134 seqnum=0x80000087
00:07:27 route,ospf,debug old=AS-External LSA id=172.16.1.136 originator=172.
16.1.134 seqnum=0x80000086
00:07:27 route,ospf,debug Adding to neighbor’s retransmit list
00:07:27 route,ospf,debug lsa=AS-External LSA id=172.16.1.136 originator=172.
16.1.134 seqnum=0x80000087
00:07:27 route,ospf,debug neighbor=172.16.2.15
00:07:27 route,ospf,debug number of retransmits=2
00:07:27 route,ospf,debug Adding to neighbor’s retransmit list
00:07:27 route,ospf,debug lsa=AS-External LSA id=172.16.1.136 originator=172.
16.1.134 seqnum=0x80000087
00:07:27 route,ospf,debug neighbor=172.16.7.202
00:07:27 route,ospf,debug number of retransmits=1
00:07:27 route,ospf,debug SEND: Link State Update → 224.0.0.5 via [w1-To_EH:172.
16.1.134]
00:07:27 route,ospf,debug,raw PACKET:
00:07:27 route,ospf,debug,raw 02 04 00 40 AC 10 01 86 00 00 00 00 0F 64 00 00

00:07:27 route,ospf,debug,raw 00 00 00 00 00 00 00 00 00 00 00 01 00 01 02 05

00:07:27 route,ospf,debug,raw AC 10 01 88 AC 10 01 86 80 00 00 87 62 CE 00 24

00:07:27 route,ospf,debug,raw FF FF FF FC 00 00 00 14 00 00 00 00 00 00 00 00

00:07:27 route,ospf,debug SEND: Link State Update → 224.0.0.5 via [e3-client1:17
2.16.7.201]
00:07:27 route,ospf,debug,raw PACKET:
00:07:27 route,ospf,debug,raw 02 04 00 40 AC 10 01 86 00 00 00 00 0F 64 00 00

00:07:27 route,ospf,debug,raw 00 00 00 00 00 00 00 00 00 00 00 01 00 01 02 05

00:07:27 route,ospf,debug,raw AC 10 01 88 AC 10 01 86 80 00 00 87 62 CE 00 24

00:07:27 route,ospf,debug,raw FF FF FF FC 00 00 00 14 00 00 00 00 00 00 00 00


This is the log of the client routerboard:

03:27:22 route,ospf,debug lsa=Router LSA id=172.16.1.134 originator=172.16.1.134 seqnum=0x800231c2
03:27:22 route,ospf,debug LSA Update received: Installing and flooding it
03:27:22 route,ospf,debug header=AS-External LSA id=172.16.1.136 originator=172.16.1.134 seqnum=0x800000b7
03:27:22 route,ospf,debug Installing an LSA
03:27:22 route,ospf,debug lsa=AS-External LSA id=172.16.1.136 originator=172.16.1.134 seqnum=0x800000b7
03:27:22 route,ospf,debug old=AS-External LSA id=172.16.1.136 originator=172.16.1.134 seqnum=0x800000b6
03:27:22 route,ospf,debug Deleting an LSA
03:27:22 route,ospf,debug lsa=AS-External LSA id=172.16.1.136 originator=172.16.1.134 seqnum=0x800000b6
03:27:22 route,ospf,debug RECV: Link State Update ← 172.16.7.201 via [e3-bb1:172.16.7.202]
03:27:22 route,ospf,debug,raw PACKET:
03:27:22 route,ospf,debug,raw 45 C0 00 84 57 C4 00 00 01 59 F8 E9 AC 10 07 C9
03:27:22 route,ospf,debug,raw AC 10 07 CA 02 04 00 70 AC 10 01 86 00 00 00 00
03:27:22 route,ospf,debug,raw 41 FF 00 00 00 00 00 00 00 00 00 00 00 00 00 02
03:27:22 route,ospf,debug,raw 00 01 02 01 AC 10 01 86 AC 10 01 86 80 02 31 C4
03:27:22 route,ospf,debug,raw 54 AD 00 30 02 00 00 02 AC 10 07 CA AC 10 07 C9
03:27:22 route,ospf,debug,raw 02 00 00 14 AC 10 01 85 AC 10 01 86 02 00 00 0A
03:27:22 route,ospf,debug,raw 00 01 02 05 AC 10 01 88 AC 10 01 86 80 00 00 B7
03:27:22 route,ospf,debug,raw 02 FE 00 24 FF FF FF FC 00 00 00 14 00 00 00 00
03:27:22 route,ospf,debug,raw 00 00 00 00
03:27:22 route,ospf,debug SEND: Link State Acknowledgement → 172.16.7.201 via [e3-bb1:172.16.7.202]
03:27:22 route,ospf,debug,raw PACKET:
03:27:22 route,ospf,debug,raw 02 05 00 40 AC 10 07 CA 00 00 00 00 04 FE 00 00
03:27:22 route,ospf,debug,raw 00 00 00 00 00 00 00 00 00 01 02 01 AC 10 01 86
03:27:22 route,ospf,debug,raw AC 10 01 86 80 02 31 C4 54 AD 00 30 00 01 02 05
03:27:22 route,ospf,debug,raw AC 10 01 88 AC 10 01 86 80 00 00 B7 02 FE 00 24
03:27:22 route,ospf,debug RECV: Link State Update ← 172.16.7.201 via [e3-bb1:172.16.7.202]
03:27:22 route,ospf,debug,raw PACKET:
03:27:22 route,ospf,debug,raw 45 C0 00 54 57 C5 00 00 01 59 CC ED AC 10 07 C9
03:27:22 route,ospf,debug,raw E0 00 00 05 02 04 00 40 AC 10 01 86 00 00 00 00
03:27:22 route,ospf,debug,raw FA 75 00 00 00 00 00 00 00 00 00 00 00 00 00 01
03:27:22 route,ospf,debug,raw 00 04 02 05 0A 00 51 00 AC 10 01 7A 80 00 07 6D
03:27:22 route,ospf,debug,raw 44 73 00 24 FF FF FF 00 80 00 00 14 00 00 00 00
03:27:22 route,ospf,debug,raw 00 00 00 00
03:27:22 route,ospf,debug LSA Update received: Installing and flooding it
03:27:22 route,ospf,debug header=AS-External LSA id=10.0.81.0 originator=172.16.1.122 seqnum=0x8000076d
03:27:22 route,ospf,debug Installing an LSA
03:27:22 route,ospf,debug lsa=AS-External LSA id=10.0.81.0 originator=172.16.1.122 seqnum=0x8000076d
03:27:22 route,ospf,debug Installing an OSPF route in the main routing table
03:27:22 route,ospf,debug dst-address=10.0.81.0/24
03:27:23 route,ospf,debug SEND: Link State Acknowledgement → 224.0.0.5 via [e3-bb1:172.16.7.202]
03:27:23 route,ospf,debug,raw PACKET:
03:27:23 route,ospf,debug,raw 02 05 00 54 AC 10 07 CA 00 00 00 00 2E 51 00 00
03:27:23 route,ospf,debug,raw 00 00 00 00 00 00 00 00 00 01 02 01 AC 10 01 86
03:27:23 route,ospf,debug,raw AC 10 01 86 80 02 31 C4 54 AD 00 30 00 01 02 05
03:27:23 route,ospf,debug,raw AC 10 01 88 AC 10 01 86 80 00 00 B7 02 FE 00 24
03:27:23 route,ospf,debug,raw 00 04 02 05 0A 00 51 00 AC 10 01 7A 80 00 07 6D
03:27:23 route,ospf,debug,raw 44 73 00 24

I hope this makes some sense…to someone.