BGP ZEBRA routes not recovering after interface reappearing #6327
Description
Describe the bug
A clear and concise description of what the bug is.
restarting a wireguard interface will not recover the routes from bgp
(put "x" in "[ ]" if you already tried following)
[x] Did you check if this is a duplicate issue?
[x] Did you test it on the latest FRRouting/frr master branch?
To Reproduce
Steps to reproduce the behavior:
- ip link set wg0 down && sleep 4 && ip link set wg0 up
- error
netifd: Network device 'wg0' link is down
netifd: Network device 'wg0' link is up
zebra[14667]: Extended Error: Nexthop has invalid gateway
zebra[14667]: [EC 4043309093] netlink-dp (NS 0) error: Network unreachable, type=RTM_NEWNEXTHOP(104), seq=1734, pid=3243977578
zebra[14667]: Extended Error: Invalid nexthop id
zebra[14667]: [EC 4043309093] netlink-dp (NS 0) error: Invalid argument, type=RTM_NEWNEXTHOP(104), seq=1735, pid=3243977578
[...]
zebra[14667]: Extended Error: Nexthop id does not exist
zebra[14667]: [EC 4043309093] netlink-dp (NS 0) error: Invalid argument, type=RTM_NEWROUTE(24), seq=1793, pid=3243977578
zebra[14667]: [EC 4043309074] Failed to install Nexthop ID (105) into the kernel
zebra[14667]: [EC 4043309074] Failed to install Nexthop ID (104) into the kernel
zebra[14667]: default(0):10.160.13.0/24: Route install failed
zebra[14667]: default(0):10.160.23.0/24: Route install failed
zebra[14667]: default(0):10.162.22.0/24: Route install failed
zebra[14667]: default(0):10.164.17.0/24: Route install failed
zebra[14667]: default(0):10.164.27.0/24: Route install failed
zebra[14667]: default(0):10.249.119.8/30: Route install failed
[...]
zebra[14667]: default(0):10.100.10.0/24: Route install failed
Expected behavior
A clear and concise description of what you expected to happen.
routes reinstalled
bgpd[14822]: bgp_update_receive: rcvd End-of-RIB for IPv4 Unicast from 172.16.223.5 in vrf default
Versions
- OS Kernel: [Linux] [5.4.35]
- FRR Version [04/28/2020]
Additional context
frr.conf
router bgp 666
bgp router-id 10.160.20.1
bgp log-neighbor-changes
timers bgp 8 25
neighbor 172.16.223.5 remote-as 666
!
address-family ipv4 unicast
network 10.160.20.0/24
network 172.16.223.4/30
exit-address-family
!
router-id 10.160.20.1 is the ip of the eth0
ip link set wg0 down && ip link set wg0 up will not show the error but will not work also