[Xorp-users] xorp ospf endless loop problem?

[Kimmo Koivisto]

Hello

I have simple environment with four routers R1-R4, tested with xorp 1.3 and 
cvs version from Jan 22. I am running RHEL4 ES. 

I have had some problems with ospf, sometimes when I reboot one router (let's 
say R1), other router (R2) just loops ospf related messages forever. I can 
see that xorp eats 99% of the cpu. Problem goes away if I restart xorp from 
R2.

Is there any known problems with xorp's ospf, could my problem be know one? 

Regards
Kimmo Koivisto

Ospf related configuration and log from the problem :

<xorp ospf config>
protocols {
  ospf4 {
    router-id: 10.0.1.2

    area 0.0.0.0 {
      interface eth0 {
        vif eth0 {
          address 10.0.1.2
        }
      }
      interface eth1 {
        vif eth1 {
          address 10.1.1.2
        }
      }
    }
  }
}

</xorp ospf config>


<xorp log from problem>
[ 2007/01/23 11:17:56  INFO xorp_ospfv2:4243 OSPF +4064 peer.cc 
link_state_update_received ] Same LSA
Network-LSA:
LS age 3600 Options  0x2 DC: 0 EA: 0 N/P: 0 MC: 0 E: 1 LS type 0x2 Link State 
ID 11.0.1.2 Advertising Router 10.0
.1.2 LS sequence number 0x80000001 LS checksum 0x5ec6 length 32
        Network Mask 0xffffff00
        Attached Router 11.0.0.2
        Attached Router 10.0.1.2
Network-LSA:
LS age 3600 Options  0x2 DC: 0 EA: 0 N/P: 0 MC: 0 E: 1 LS type 0x2 Link State 
ID 11.0.1.2 Advertising Router 10.0
.1.2 LS sequence number 0x80000001 LS checksum 0x5ec6 length 32
        Network Mask 0xffffff00
        Attached Router 11.0.0.2
        Attached Router 10.0.1.2
[ 2007/01/23 11:17:56  INFO xorp_ospfv2:4243 OSPF +4064 peer.cc 
link_state_update_received ] Same LSA
Network-LSA:
LS age 3600 Options  0x2 DC: 0 EA: 0 N/P: 0 MC: 0 E: 1 LS type 0x2 Link State 
ID 11.0.2.1 Advertising Router 10.0
.1.2 LS sequence number 0x80000001 LS checksum 0x6fb3 length 32
        Network Mask 0xffffff00
        Attached Router 11.0.2.2
        Attached Router 10.0.1.2
Network-LSA:
LS age 3600 Options  0x2 DC: 0 EA: 0 N/P: 0 MC: 0 E: 1 LS type 0x2 Link State 
ID 11.0.2.1 Advertising Router 10.0
.1.2 LS sequence number 0x80000001 LS checksum 0x6fb3 length 32
        Network Mask 0xffffff00
        Attached Router 11.0.2.2
        Attached Router 10.0.1.2
</xorp log from problem>