On 05.12.2013 09:14, Dmitry S. Nikolaev wrote:
Hello.
Does anyone use OSPFv3 ? My question is about monitoring. Hello.
Please try an attached patch.
We use OSPFv3 over tunnels and have more than one tunnel to one endpoint over different Inet channels (different providers): So, as example this is config of one of the side: protocol ospf office { debug { states, interfaces, events }; tick 1; rfc1583compat yes; area 0.0.0.0 { stub no; interface "ng2" { cost 5; type pointopoint; hello 10; retransmit 3; transmit delay 5; dead count 3; wait 40; }; interface "ng0" { cost 10; type pointopoint; hello 10; retransmit 3; transmit delay 5; dead count 3; wait 40; }; interface "ng1" { cost 30; type pointopoint; hello 10; retransmit 3; transmit delay 5; dead count 3; wait 40; }; }; import filter ospfIN; export filter ospfOUT; }
Show OSPF neighbors: # birdc6 BIRD 1.3.11 ready. bird> show ospf neighbors office: Router ID Pri State DTime Interface Router IP 1.1.1.1 1 full/ptp 00:30 ng1 fe80::224:1dff:feb3:720 1.1.1.1 1 full/ptp 00:29 ng2 fe80::224:1dff:feb3:720 1.1.1.1 1 full/ptp 00:30 ng0 fe80::224:1dff:feb3:720
When any OSPF neighbor goes down/up then in log appear: Neighbor fe80::224:1dff:feb3:720 changes state from " full" to " init". Neighbor fe80::224:1dff:feb3:720 changes state from " init" to " 2way". Neighbor fe80::224:1dff:feb3:720 changes state from " 2way" to " exstart". Neighbor fe80::224:1dff:feb3:720 changes state from " exstart" to "exchange". Neighbor fe80::224:1dff:feb3:720 changes state from "exchange" to " loading". Neighbor fe80::224:1dff:feb3:720 changes state from " loading" to " full".
But OSPFv3 use link-local address for adjacency and not global IP on the tunnel, example: ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> metric 0 mtu 1500 inet 10.255.255.1 --> 10.255.255.2 netmask 0xffffffff inet6 fe80::224:1dff:feb3:720%ng0 prefixlen 64 scopeid 0x12 inet6 2001:XXX:XXXX:XXX::1:1 --> 2001:XXX:XXXX:XXX::1:2 prefixlen 128 nd6 options=3<PERFORMNUD,ACCEPT_RTADV>
Thus it is impossible to understand exactly what neighbor (over what tunnel) change it`s state because there is no iface name in log. So monitoring system can say that some neighbor down/up but can`t say over what tunnel this neighbor was working :(
Who faced with the same task ? How to solve? Thanks.
P.S. Sorry for my english.