Unable to advertise EVPN type 3 (multicast) routes when using a route-map #13792
Description
Describe the bug
When using any route map, EVPN type 3 (multicast) routes are not advertised.
- Did you check if this is a duplicate issue?
- Did you test it on the latest FRRouting/frr master branch?
To Reproduce
- Create vxlan and bridge interface (vxlan 100).
- Apply this config:
router bgp 65023
bgp router-id 10.32.0.41
bgp log-neighbor-changes
no bgp ebgp-requires-policy
no bgp default ipv4-unicast
no bgp network import-check
neighbor RS-EVPN peer-group
neighbor RS-EVPN remote-as 65020
neighbor RS-EVPN bfd
neighbor RS-EVPN ebgp-multihop 32
neighbor RS-EVPN update-source dum0
neighbor RS-EVPN capability extended-nexthop
neighbor 10.32.1.2 peer-group RS-EVPN
!
address-family l2vpn evpn
neighbor RS-EVPN activate
neighbor RS-EVPN allowas-in 1
neighbor RS-EVPN route-map RS-OUT out
advertise-all-vni
vni 100
rd 65023:100000100
route-target import 65000:100
route-target export 65002:1
advertise-svi-ip
exit-vni
exit-address-family
exit
!
route-map RS-OUT permit 10
- Checking the route:
# show bgp l2vpn evpn route rd 65023:100000100 type 3
EVPN type-1 prefix: [1]:[EthTag]:[ESI]:[IPlen]:[VTEP-IP]:[Frag-id]
EVPN type-2 prefix: [2]:[EthTag]:[MAClen]:[MAC]
EVPN type-3 prefix: [3]:[EthTag]:[IPlen]:[OrigIP]
EVPN type-4 prefix: [4]:[ESI]:[IPlen]:[OrigIP]
EVPN type-5 prefix: [5]:[EthTag]:[IPlen]:[IP]
BGP routing table entry for 65023:100000100:[3]:[0]:[32]:[10.32.0.43]
Paths: (1 available, best #1)
Not advertised to any peer
Route [3]:[0]:[32]:[10.32.0.43] VNI 100
Local
10.32.0.43 from 0.0.0.0 (10.32.0.41)
Origin IGP, weight 32768, valid, sourced, local, best (First path received)
Extended Community: ET:8 RT:65002:1
Last update: Tue Jun 13 09:56:27 2023
PMSI Tunnel Type: Ingress Replication, label: 100
This route is not advertised to any peer. As a result, any multicast and broadcast traffic is not routed.
If I turn off the route map, the problem with route advertising goes away:
- Disabling a route map
# conf
(config)# router bgp 65023
(config-router)# address-family l2vpn evpn
(config-router-af)# no neighbor RS-EVPN route-map RS-OUT out
(config-router-af)# end
- Checking the route:
# show bgp l2vpn evpn route rd 65023:100000100 type 3
EVPN type-1 prefix: [1]:[EthTag]:[ESI]:[IPlen]:[VTEP-IP]:[Frag-id]
EVPN type-2 prefix: [2]:[EthTag]:[MAClen]:[MAC]
EVPN type-3 prefix: [3]:[EthTag]:[IPlen]:[OrigIP]
EVPN type-4 prefix: [4]:[ESI]:[IPlen]:[OrigIP]
EVPN type-5 prefix: [5]:[EthTag]:[IPlen]:[IP]
BGP routing table entry for 65023:100000100:[3]:[0]:[32]:[10.32.0.43]
Paths: (1 available, best #1)
Advertised to non peer-group peers:
10.32.1.2
Route [3]:[0]:[32]:[10.32.0.43] VNI 100
Local
10.32.0.43 from 0.0.0.0 (10.32.0.41)
Origin IGP, weight 32768, valid, sourced, local, best (First path received)
Extended Community: ET:8 RT:65002:1
Last update: Tue Jun 13 14:33:37 2023
PMSI Tunnel Type: Ingress Replication, label: 100
Displayed 1 prefixes (1 paths) with this RD (of requested type)
This route advertised.
Expected behavior
Screenshots
Versions
- OS Version: Debian11
- Kernel: 6.1.33
- FRR Version: 8.5.1-43
Additional context