Hi!
I have ibgp setup where I receive number of routes with indirect nexthops.
"nexthop qualify via bgp" is configured. I'm using snapshot from 31.11.2016 and
current bgpd sources.
When I start bgpd it usually comes up with either some or none of the indirect
nexthops resolved:
# bgpctl show nex
Flags: * = nexthop valid
Nexthop Route Prio Gateway Iface
10.150.0.10
* 10.150.0.12 10.150.0.0/23 48 10.150.8.1
<~50 nexthops some working some not removed>
* 10.150.8.1 10.150.8.0/24 4 connected vio0 (UP, active)
"bgpctl reload" always fixes the problem and all nexthops are resolved to
10.150.0.0/23 -> 10.150.8.1
I have tried to find a way to fix it properly but so far I have managed to get
it working with following definitely wrong patch.
There seems to be race somewhere between nexthop insertion and validation.
Any idea where should I look or what to check?
vio0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 55:54:00:0b:39:f1
index 1 priority 0 llprio 3
groups: core egress
media: Ethernet autoselect
status: active
inet 10.150.8.5 netmask 0xffffff00 broadcast 10.150.8.255
config:
AS 65001
router-id 10.150.8.5
nexthop qualify via bgp
network inet connected
neighbor 10.150.8.1 {
remote-as 65001
}
match from any prefix 0.0.0.0/0 prefixlen >= 1 set rtlabel INT
match to any set localpref 90
Index: kroute.c
===================================================================
RCS file: /cvs/src/usr.sbin/bgpd/kroute.c,v
retrieving revision 1.210
diff -u -p -r1.210 kroute.c
--- kroute.c 5 Oct 2016 07:38:06 -0000 1.210
+++ kroute.c 3 Nov 2016 19:15:49 -0000
@@ -897,6 +897,8 @@ kr_nexthop_add(u_int rtableid, struct bg
return (-1);
}
+ RB_FOREACH(h, knexthop_tree, KT2KNT(kt))
+ knexthop_validate(kt, h);
return (0);
}
