ospf loading for ever...

Arkadiusz Miskiewicz arekm at maven.pl
Wed Mar 23 19:58:06 CET 2011


Hi,

I'm playing with ospf on few Linux hosts pretending to be routers in single 
LAN.

Unfortunately one host has a problem. bird (1.2.5, git master) thinks 
route(r)s are "unreachable" (as seen by show ospf state all). It never gets 
into full state. All other routers have no such problem. There is no firewall 
here.

Any clues?

ps. is there bird related irc channel or do devs use irc? (arekm at freenode)

config is:

protocol ospf MyOSPF {
        debug all;
        rfc1583compat;
        import filter from_bgp;
        export none;
        area 0.0.0.0 {
                networks {
                        x.x.x.0/22;
                };

                interface "eth0" {
                };
        };
}


bird> show ospf neighbors
MyOSPF:
Router ID       Pri          State      DTime   Interface  Router IP
x.x.4.235    1         2way/other  00:32   eth0       x.x.4.253
x.x.4.190    1         2way/other  00:32   eth0       x.x.4.190
x.x.4.218    1         2way/other  00:31   eth0       x.x.4.218
x.x.5.242    1      loading/bdr    00:37   eth0       x.x.5.242
x.x.4.197    1         2way/other  00:32   eth0       x.x.4.197
x.x.4.82     1         2way/other  00:33   eth0       x.x.4.222
x.x.4.193    1         2way/other  00:33   eth0       x.x.4.193
x.x.5.159    1      loading/dr     00:36   eth0       x.x.5.159
x.x.4.223    1         2way/other  00:34   eth0       x.x.4.223
x.x.5.150    1         2way/other  00:33   eth0       x.x.5.150
x.x.5.137    1         2way/other  00:35   eth0       x.x.5.137
x.x.4.131    1         2way/other  00:35   eth0       x.x.4.245
x.x.4.230    1         2way/other  00:35   eth0       x.x.4.230
x.x.4.80     1         2way/other  00:35   eth0       x.x.4.215
x.x.4.217    1         2way/other  00:36   eth0       x.x.4.217
x.x.4.34     1         2way/other  00:36   eth0       x.x.4.216

bird> show interfaces
lo up (index=1)
        MultiAccess AdminUp LinkUp Loopback Ignored MTU=16436
        127.0.0.1/8 (Primary, broadcast 127.255.255.255, scope host)
eth0 up (index=2)
        MultiAccess Broadcast Multicast AdminUp LinkUp MTU=9000
        x.x.5.135/22 (Primary, broadcast x.x.7.255, scope univ)
        x.x.5.140/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.148/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.146/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.152/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.154/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.139/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.144/22 (Secondary, broadcast x.x.7.255, scope univ)
        x.x.5.145/22 (Secondary, broadcast x.x.7.255, scope univ)
eth1 DOWN (index=3)
        MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500
sit0 DOWN (index=5)
        MultiAccess AdminDown LinkDown MTU=1480
sixxs DOWN (index=15)
        PtP Multicast AdminUp LinkUp MTU=1280
veth-c700 up (index=19)
        MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500
        x.x.5.135/32 (Primary, broadcast x.x.5.135, scope univ)

bird> show ospf state all                                                                                                                                    
                                                                                                                                                             
area 0.0.0.0                                                                                                                                                 
                                                                                                                                                             
        router x.x.4.223                                                                                                                                
                unreachable                                                                                                                                  
                network x.x.4.0/22 metric 10                                                                                                            
                                                                                                                                                             
        router x.x.5.135                                                                                                                                
                distance 0                                                                                                                                   
                stubnet x.x.4.0/22 metric 10                                                                                                            
                                                                                                                                                             
        router x.x.5.159                                                                                                                                
                unreachable                                                                                                                                  
                network x.x.4.0/22 metric 10                                                                                                            
                external 2.95.55.0/24 metric2 10000
                [...]
                external a.b.c.0/24 metric2 10000
                external e.f.g.0/22 metric2 10000
                external h.i.j.0/22 metric2 10000
                external k.l.m.0/19 metric2 10000

        router x.x.5.242
                unreachable
                network x.x.4.0/22 metric 10

        network x.x.4.0/22
                dr x.x.5.159
                unreachable
                router x.x.5.159
                router x.x.4.80
                router x.x.5.137
                router x.x.4.217
                router x.x.4.131
                router x.x.4.82
                router x.x.5.150
                router x.x.5.242
                router x.x.4.230
                router x.x.4.235
                router x.x.4.223
                router x.x.4.197
                router x.x.5.135
                router x.x.4.190
                router x.x.4.34
                router x.x.4.193
                router x.x.4.218


-- 
Arkadiusz Miśkiewicz        PLD/Linux Team
arekm / maven.pl            http://ftp.pld-linux.org/



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