If it helps, I uploaded the output from `debug backbone all` && `restart backbone` to https://gist.github.com/briantopping/7313d6bda963ea01b6d1288fda4942e8
> On Feb 17, 2020, at 12:17 AM, Brian Topping <[email protected]> wrote: > > Greetings, I have a network with four routers on an OSPF backbone. Only one > of the four routers cannot export the type 5 LSA entries to the kernel. I > cannot figure out why. I wonder if I might kindly ask some guidance. > > The routers (including the problem router) are all BIRD 2.0.7 with the router > with IP 10.10.4.1 running 2.0.4. The kernels are Linux 4.20.x. > > Here is the OSPF for a working router: > >> protocol ospf backbone { >> ipv4 { >> export all; >> import filter { if net = 0.0.0.0/0 then reject; else accept; }; >> }; >> area 0.0.0.0 { >> interface "eno2" {}; >> interface "vti*" { >> type nbma; >> strict nonbroadcast yes; >> neighbors { >> 10.9.254.2 eligible; >> }; >> }; >> }; >> } > > > > The OSPF configuration of the router having problems. They are virtually > identical with the exception of the interfaces: > >> protocol ospf backbone { >> ipv4 { >> export all; >> import filter { if net = 0.0.0.0/0 then reject; else accept; }; >> }; >> area 0.0.0.0 { >> interface "bond0" { >> }; >> interface "vti*" { >> type nbma; >> neighbors { >> 10.9.255.1 eligible; >> 10.9.254.1 eligible; >> }; >> }; >> }; >> } > > > All the routers have *identical* LSADBs on each router (not shown). master4 > is correct on the working routers: >> [root@gw02 ~]# birdc show route >> BIRD 2.0.7 ready. >> Table master4: >> 0.0.0.0/0 unicast [bgp_handy_125 02:07:43.248] * (100) [AS30475i] >> via c.d.143.125 on eno1 >> unicast [bgp_handy_126 02:07:43.661] (100) [AS30475i] >> via c.d.143.126 on eno1 >> a.b.96.0/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> a.b.96.9/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> a.b.96.8/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> a.b.96.11/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> 10.10.0.0/22 unicast [backbone 02:07:46.207] I (150/10) [c.d.143.113] >> dev eno2 >> 10.9.254.2/32 unicast [backbone 02:08:16.208] I (150/10) [10.10.4.21] >> via 10.9.254.2 on vti3 >> 10.9.254.0/24 unicast [backbone 02:08:16.208] I (150/10) [10.10.4.21] >> dev vti3 >> 10.9.255.2/32 unicast [backbone 02:08:16.208] I (150/10) [10.10.4.21] >> via 10.9.254.2 on vti3 >> 192.168.10.0/24 unicast [backbone 02:08:16.208] I (150/30) [10.10.4.1] >> via 10.9.254.2 on vti3 >> 10.10.4.0/22 unicast [backbone 02:08:16.208] I (150/20) [10.10.4.1] >> via 10.9.254.2 on vti3 >> 10.9.255.0/24 unicast [backbone 02:08:16.208] I (150/20) [c.d.143.113] >> via 10.9.254.2 on vti3 weight 1 >> via 10.10.0.41 on eno2 weight 1 >> a.b.97.1/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> a.b.96.10/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> a.b.96.0/24 blackhole [public_nets_proto 02:07:35.107] * (500) >> unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> a.b.97.0/24 blackhole [public_nets_proto 02:07:35.107] * (500) >> unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> [root@gw02 ~]# birdc show route a.b.96.0/32 all >> BIRD 2.0.7 ready. >> Table master4: >> a.b.96.0/32 unicast [backbone 02:07:46.207] E2 (150/10/10000) >> [c.d.143.113] >> via 10.10.0.41 on eno2 >> Type: OSPF-E2 univ >> OSPF.metric1: 10 >> OSPF.metric2: 10000 >> OSPF.tag: 0x00000000 >> OSPF.router_id: c.d.143.113 > > The router with problems does *not* have a correct copy of master4 table, it > is missing all of the LSA type 5 entries. So of course they cannot be > exported to kernel on that router: >> [root@centos01 ~]# birdc show route >> BIRD 2.0.7 ready. >> Table master4: >> 10.9.254.2/32 unicast [backbone 22:53:52.605] I (150/0) [10.10.4.21] >> dev bond0 >> 10.9.254.0/24 unicast [backbone 00:08:15.604] I (150/10) [10.10.4.21] >> dev bond0 >> 10.9.255.2/32 unicast [backbone 23:56:54.605] I (150/0) [10.10.4.21] >> dev bond0 >> 192.168.10.0/24 unicast [backbone 22:54:32.604] I (150/20) [10.10.4.1] >> via 10.10.4.1 on bond0 >> 10.10.4.0/22 unicast [backbone 22:54:32.604] I (150/10) [10.10.4.1] >> dev bond0 >> 10.9.255.0/24 unicast [backbone 23:57:39.604] I (150/10) [c.d.143.113] >> dev bond0 > > > What I cannot figure out is why the OSPF entries are not imported to master4 > on this single machine. > > Thanks kindly for any thoughts. > > Brian > >
