> Using bird 2.0.2. Guess it does not include patch you mentioned Yes, it is not released yet.
> The issue is that bird/bgp tries to resolve nexthops for all vrfs only in default. I think it depends on your configuration. Do you have separate tables for protocols in different vrfs? On Mon, Nov 5, 2018 at 9:42 AM, Semion Lisyansky <[email protected]> wrote: > Thanks, Alexander > > Using bird 2.0.2. Guess it does not include patch you mentioned > > Have another question: > Configured peers in vrf with different addresses but still in overlapping > subnets. > BGP session are established and some prefixes advertised. > The issue is that bird/bgp tries to resolve nexthops for all vrfs only in > default. > > ip -4 neigh show vrf vrf01 > 190.34.32.101 dev swp32.101 lladdr 00:00:80:8f:c3:1a REACHABLE > > ip -4 neigh show > 190.34.32.101 dev swp32 INCOMPLETE > > ip route show vrf vrf01 > 134.0.0.0/24 via 190.34.32.101 dev swp32 proto bird metric 32 > > .-- > Semion Lisyansky > > > On Sun, Nov 4, 2018 at 8:11 PM Alexander Zubkov <[email protected]> wrote: > >> Hi, >> >> What version of bird you are using? There was a path for BGP & VRF >> applied just recently: >> https://gitlab.labs.nic.cz/labs/bird/commit/ >> e19d08055a4614f03e51ee72617be10946ce7919 >> >> On Sun, Nov 4, 2018 at 5:01 PM, Semion Lisyansky <[email protected]> >> wrote: >> >>> Hi All, >>> >>> Tried to configure vrf with same own and peer addresses as in global. >>> When I ping in vrf, packets go in and out via correct interfaces, >>> but bird bgp sessions are constantly flapping. Only one session to peer >>> with same address exists at each moment >>> As a w/a tried to configure interface per session, but this did not >>> helped. >>> >>> Here is my partial configuration: >>> >>> >>> protocol device { >>> scan time 2; # Scan interfaces every 2 seconds >>> } >>> protocol direct { >>> interface "br*"; # bridge interfaces >>> interface "swp*"; # router ports >>> interface "bond*"; # Disable by default >>> ipv4; # Connect to default IPv4 table >>> ipv6; # ... and to default IPv6 table >>> } >>> >>> protocol kernel { >>> ipv4 { # Connect protocol to IPv4 table by >>> channel >>> table master4; # Default IPv4 table is master4 >>> import none; # Import to table, default is import all >>> export all; # Export to protocol. default is export >>> none >>> }; >>> learn on; # Learn alien routes from the >>> kernel >>> merge paths yes; >>> } >>> >>> protocol bgp bgp3411 { >>> local as 65001; >>> bfd yes; >>> neighbor 191.34.1.3 as 65034; >>> # interface "swp2"; >>> ipv4 { >>> import all; >>> export all; >>> }; >>> } >>> >>> protocol bgp bgp3412 { >>> local as 65001; >>> bfd yes; >>> neighbor 192.34.1.3 as 65034; >>> # interface "swp1"; >>> ipv4 { >>> import all; >>> export all; >>> }; >>> } >>> >>> >>> ipv4 table table_vrf01; >>> >>> protocol kernel kernel_vrf01 { >>> vrf "vrf01"; >>> kernel table 101; >>> scan time 2; >>> ipv4 { >>> table table_vrf01; >>> import none; # Default is import all >>> export all; # Default is export none >>> }; >>> merge paths yes; >>> learn on; # Learn all alien routes from the kernel >>> } >>> >>> protocol direct direct_vrf01 { >>> vrf "vrf01"; >>> ipv4 { table table_vrf01; }; >>> interface "swp7.101"; >>> interface "swp1.201"; >>> interface "swp2.301"; >>> interface "vrf01"; >>> } >>> >>> protocol static static_vrf01 { >>> vrf "vrf01"; >>> ipv4 { table table_vrf01; }; >>> } >>> >>> protocol bgp bgp_vrf01_n1 { >>> vrf "vrf01"; >>> local as 65001; >>> graceful restart; >>> neighbor 191.34.1.3 as 65034; >>> ipv4 { >>> table table_vrf01; >>> import none; >>> export none; >>> }; >>> } >>> >>> protocol bgp bgp_vrf01_n2 { >>> vrf "vrf01"; >>> local as 65001; >>> graceful restart; >>> neighbor 192.34.1.3 as 65034; >>> ipv4 { >>> table table_vrf01; >>> import none; >>> export none; >>> }; >>> } >>> >>> >>> >>> ip -br link show type vrf >>> vrf01 UP fe:58:94:d2:d8:ee >>> <NOARP,MASTER,UP,LOWER_UP> >>> vrf02 UP 42:2d:8f:bd:87:9f >>> <NOARP,MASTER,UP,LOWER_UP> >>> (mlnx)root@bdg-crf-01:~# ip route show vrf vrf01 >>> 172.1.7.0/24 dev swp7.101 proto kernel scope link src 172.1.7.1 offload >>> 191.34.1.2/31 dev swp2.301 proto kernel scope link src 191.34.1.2 >>> offload >>> 192.34.1.2/31 dev swp1.201 proto kernel scope link src 192.34.1.2 >>> offload >>> (mlnx)root@bdg-crf-01:~# ip route show table 101 >>> broadcast 172.1.7.0 dev swp7.101 proto kernel scope link src 172.1.7.1 >>> 172.1.7.0/24 dev swp7.101 proto kernel scope link src 172.1.7.1 offload >>> local 172.1.7.1 dev swp7.101 proto kernel scope host src 172.1.7.1 >>> broadcast 172.1.7.255 dev swp7.101 proto kernel scope link src 172.1.7.1 >>> local 191.34.1.2 dev swp2.301 proto kernel scope host src 191.34.1.2 >>> 191.34.1.2/31 dev swp2.301 proto kernel scope link src 191.34.1.2 >>> offload >>> local 192.34.1.2 dev swp1.201 proto kernel scope host src 192.34.1.2 >>> 192.34.1.2/31 dev swp1.201 proto kernel scope link src 192.34.1.2 >>> offload >>> >>> >>> -- >>> Semion Lisyansky >>> >> >>
