diff --git a/bgp-contd/README.md b/bgp-contd/README.md index 48246d2..d8f0a4b 100644 --- a/bgp-contd/README.md +++ b/bgp-contd/README.md @@ -49,31 +49,31 @@ On `R2`, inspect the output of `birdc6 show route` and `birdc6 show route all 20 root@R2:/# birdc6 show route BIRD 1.4.5 ready. - 2001:db8:20::/48 via fe80::c1a:1aff:fe4d:b889 on ibgp [ibgp_r1 2015-08-07 from 2001:db8::1] * (100/20) [AS65020i] - 2001:db8::ff/128 via fe80::7054:20ff:fe32:2a34 on ibgp [ospf1 2015-08-07] * I (150/20) [10.0.0.0] - 2001:db8:0:5::/120 via fe80::c1a:1aff:fe4d:b889 on ibgp [ospf1 2015-08-07] * I (150/20) [10.0.0.1] - 2001:db8::/48 blackhole [static1 2015-08-07] * (200) - 2001:db8:0:1::/120 dev ibgp [ospf1 2015-08-07] * I (150/10) [10.0.0.2] - 2001:db8::1/128 via fe80::c1a:1aff:fe4d:b889 on ibgp [ospf1 2015-08-07] * I (150/20) [10.0.0.1] - 2001:db8:0:3::/120 via fe80::7054:20ff:fe32:2a34 on ibgp [ospf1 2015-08-07] * I (150/20) [10.0.0.0] - 2001:db8:10:4::/120 via fe80::c1a:1aff:fe4d:b889 on ibgp [ospf1 2015-08-07] * I (150/20) [10.0.0.1] - 2001:db8:10::/48 via fe80::7054:20ff:fe32:2a34 on ibgp [ibgp_r0 19:36:36 from 2001:db8::ff] * (100/20) [AS65010i] - via fe80::c1a:1aff:fe4d:b889 on ibgp [ibgp_r1 2015-08-07 from 2001:db8::1] (100/20) [AS65010i] + 2001:db8:20::/48 via fe80::1cc0:33ff:fe50:32a0 on lan [ibgp_r1 23:03:22 from 2001:db8::1] * (100/20) [AS65020i] + 2001:db8::ff/128 via fe80::74cc:42ff:fe54:4d47 on lan [ospf1 23:03:26] * I (150/20) [10.0.0.0] + 2001:db8:0:5::/120 via fe80::1cc0:33ff:fe50:32a0 on lan [ospf1 23:03:21] * I (150/20) [10.0.0.1] + 2001:db8::/48 blackhole [static1 23:02:35] * (200) + 2001:db8:0:1::/120 dev lan [ospf1 23:02:36] * I (150/10) [10.0.0.2] + 2001:db8::1/128 via fe80::1cc0:33ff:fe50:32a0 on lan [ospf1 23:03:21] * I (150/20) [10.0.0.1] + 2001:db8:0:3::/120 via fe80::74cc:42ff:fe54:4d47 on lan [ospf1 23:03:26] * I (150/20) [10.0.0.0] + 2001:db8:10:4::/120 via fe80::1cc0:33ff:fe50:32a0 on lan [ospf1 23:03:21] * I (150/20) [10.0.0.1] + 2001:db8:10::/48 via fe80::74cc:42ff:fe54:4d47 on lan [ibgp_r0 23:03:27 from 2001:db8::ff] * (100/20) [AS65010i] + via fe80::1cc0:33ff:fe50:32a0 on lan [ibgp_r1 23:03:22 from 2001:db8::1] (100/20) [AS65010i] root@R2:/# birdc6 show route all 2001:db8:10::/48 BIRD 1.4.5 ready. - 2001:db8:10::/48 via fe80::7054:20ff:fe32:2a34 on ibgp [ibgp_r0 19:36:36 from 2001:db8::ff] * (100/20) [AS65010i] - Type: BGP unicast univ - BGP.origin: IGP - BGP.as_path: 65010 - BGP.next_hop: 2001:db8:0:3::10 - BGP.local_pref: 100 - via fe80::c1a:1aff:fe4d:b889 on ibgp [ibgp_r1 2015-08-07 from 2001:db8::1] (100/20) [AS65010i] - Type: BGP unicast univ - BGP.origin: IGP - BGP.as_path: 65010 - BGP.next_hop: 2001:db8:10:4::11 - BGP.local_pref: 100 + 2001:db8:10::/48 via fe80::74cc:42ff:fe54:4d47 on lan [ibgp_r0 23:03:27 from 2001:db8::ff] * (100/20) [AS65010i] + Type: BGP unicast univ + BGP.origin: IGP + BGP.as_path: 65010 + BGP.next_hop: 2001:db8:0:3::10 + BGP.local_pref: 100 + via fe80::1cc0:33ff:fe50:32a0 on lan [ibgp_r1 23:03:22 from 2001:db8::1] (100/20) [AS65010i] + Type: BGP unicast univ + BGP.origin: IGP + BGP.as_path: 65010 + BGP.next_hop: 2001:db8:10:4::11 + BGP.local_pref: 100 Notice that `R2` knows two different routes to `2001:db8:10::/48`. One of them gets chosen to end up in the linux kernel routing table (marked with the `*`), and the information about the route shows from which iBGP connection the route was learned.