Help with OSPF

RouterOS Beginner Basics
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

Any firewall rules or b/w control rules pertaining to p2p? I’ve seen issues with blocking or heavily throttling p2p. Sometimes MT intermittently blocks OSPF packets and drops the OSPF routing data, then passes them and OSPF gets moving again. As for us, we’ve loved OSPF since we put it in. That was the only issue and we solved it by being very specific about what IP networks get p2p firewall rules applied.

3

We don’t have any rules applying to P2P across those 3 links.

4

Sounds like routing loop. Check OSPF installed routes.

5

Dumb question, but how do I check that?

6

When OSPF routes are installed check if correct gateways are set. You can also use traceroute tool.