Hi team,
i have as unexpected behaviour using export route-maps with bgp.
Export route-map does not working when i add a new bgp peer and using existing or new route-map as export filter. Same route-map works for other peers.
set protocols bgp peer-group xxx address-family ipv4-unicast maximum-prefix-out '100' set protocols bgp peer-group xxx address-family ipv4-unicast nexthop-self set protocols bgp peer-group xxx address-family ipv4-unicast remove-private-as set protocols bgp peer-group xxx address-family ipv4-unicast route-map export 'XXX-I-OUT4' set protocols bgp peer-group xxx address-family ipv4-unicast route-map import 'XXX-I-IN4' set protocols bgp peer-group xxx address-family ipv4-unicast soft-reconfiguration inbound set protocols bgp peer-group xxx description 'Peering: xxx v4' set protocols bgp peer-group xxx remote-as 'xxx' set protocols bgp neighbor xxx peer-group 'xxx' commit
After that, import route-map works as expected but export won't work:
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd PfxSnt xxx 4 xxx 831 29 0 0 0 00:06:43 2544 0
BGP neighbor is xxx, remote AS xxx, local AS xxx, external link
Member of peer-group xxx for session parameters
BGP version 4, remote router ID xxx, local router ID xxx
BGP state = Established, up for 00:13:58
Last read 00:00:48, Last write 00:00:58
Hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
4 Byte AS: advertised and received
AddPath:
IPv4 Unicast: RX advertised IPv4 Unicast
Route refresh: advertised and received(old & new)
Address Family IPv4 Unicast: advertised and received
Hostname Capability: advertised (name: xxx,domain name: n/a) not received
Graceful Restart Capability: advertised and received
Remote Restart timer is 120 seconds
Address families by peer:
IPv4 Unicast(not preserved)
Graceful restart information:
End-of-RIB send: IPv4 Unicast
End-of-RIB received: IPv4 Unicast
Local GR Mode: Helper*
Remote GR Mode: Restart
R bit: False
Timers:
Configured Restart Time(sec): 120
Received Restart Time(sec): 120
IPv4 Unicast:
F bit: False
End-of-RIB sent: Yes
End-of-RIB sent after update: Yes
End-of-RIB received: Yes
Timers:
Configured Stale Path Time(sec): 360
Message statistics:
Inq depth is 0
Outq depth is 0
Sent Rcvd
Opens: 2 2
Notifications: 2 0
Updates: 2 808
Keepalives: 30 29
Route Refresh: 0 0
Capability: 0 0
Total: 36 839
Minimum time between advertisement runs is 0 seconds
For address family: IPv4 Unicast
xxx peer-group member
Update group 9, subgroup 11
Packet Queue length 0
Inbound soft reconfiguration allowed
Private AS numbers removed in updates to this neighbor
NEXT_HOP is always this router
Community attribute sent to this neighbor(all)
Inbound path policy configured
Outbound path policy configured
Route map for incoming advertisements is *XXX-I-IN4
Route map for outgoing advertisements is *XXX-I-OUT4
2544 accepted prefixes
Maximum allowed prefixes sent 0
Connections established 2; dropped 1
Last reset 00:14:00, User reset
Local host: xxx, Local port: 55774
Foreign host: xxx, Foreign port: 179
Nexthop: xxx
Nexthop global: xxx
Nexthop local: xxx
BGP connection: shared network
BGP Connect Retry Timer in Seconds: 120
Estimated round trip time: 170 ms
Read thread: on Write thread: on FD used: 38Now, when i restart bgpd:
run restart frr bgpd WARNING: This is a potentially unsafe function! You may lose the connection to the router or active configuration after running this command. Use it at your own risk! Continue? [y/N]: y The route-map 'XXX-I-OUT4' does not exist.
Restart of bgpd resets all peers and the route-map is working as planned until i add another peer. Then i have to restart the bgpd again:
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd PfxSnt xxx 4 xxx 267 21 0 0 0 00:03:11 2544 3
Looks like export route-map is not probably during commit und requires a restart for working. I think the export route-map is not set correct and it runs into deny all.