Hello
I am trying to understand the behavior of BGPD. My setup is as below I'm
trying to understand when
BGPD will withdraw a route of a local interface.
/etc/hostname.vether0
inet 192.0.2.1 255.255.255.255
/etc/bgpd.conf
myas="65003"
AS $myas
router-id 1.0.0.1
network inet connected
fib-update yes
log updates
group "tests" {
remote-as 65001
local-address 192.168.1.111
neighbor 192.168.1.114
}
allow from any
allow to any
When vether0 is in an UP state I look at the rib and see what I expect. The IP
of vether0 is in the
rib.
router1# bgpctl show rib
claustrum# bgpctl show rib
flags: * = Valid, > = Selected, I = via IBGP, A = Announced,
S = Stale, E = Error
origin validation state: N = not-found, V = valid, ! = invalid
origin: i = IGP, e = EGP, ? = Incomplete
flags ovs destination gateway lpref med aspath origin
AI*> N 192.0.2.1/32 0.0.0.0 100 0 i
AI*> N 192.168.1.0/24 0.0.0.0 100 0 i
* N 192.168.1.0/24 192.168.1.114 100 0 65001 i
When I down the vether0 interface with 'ifconfig vether0 down'
I would expect that the route is either removed or at least become invalid and
the announce is
withdrawn. But when I check the rib 'A' and '*' flags are still set.
router1# bgpctl show rib
flags: * = Valid, > = Selected, I = via IBGP, A = Announced,
S = Stale, E = Error
origin validation state: N = not-found, V = valid, ! = invalid
origin: i = IGP, e = EGP, ? = Incomplete
flags ovs destination gateway lpref med aspath origin
AI*> N 192.0.2.1/32 0.0.0.0 100 0 i
AI*> N 192.168.1.0/24 0.0.0.0 100 0 i
* N 192.168.1.0/24 192.168.1.114 100 0 65001 i
The rib is unchanged.
Is this expected behavior?
Thank you in advance
