frrouting/linux bgp mpls example

README.md

frrouting/linux bgp mpls example

Prepare vrf netdev before frrouting configuration. Exit from vtysh and execute following commands in bash, then invoke vtysh again.

ip link add vrfA type vrf table 10
ip link set eth1 master vrfA
ip link set vrfA up

Test

from 192.168.2.2

ping 192.168.1.2

References

https://github.com/FRRouting/frr/issues/1972

http://docs.frrouting.org/en/latest/bgp.html#clicmd-labelvpnexport(0..1048575)|auto

https://docs.cumulusnetworks.com/display/CL34/Virtual+Routing+and+Forwarding+-+VRF https://docs.cumulusnetworks.com/display/DOCS/Management+VRF https://docs.cumulusnetworks.com/display/DOCS/Comparing+NCLU+and+vtysh+Commands

https://www.kernel.org/doc/Documentation/networking/vrf.txt

r1.vtysh

int eth0
  ip addr 192.168.0.1/24

int eth1 vrf vrfA
  ip addr 192.168.1.1/24

router bgp 65000
  neighbor 192.168.0.2 remote-as 65001
  address-family ipv4 vpn
    neighbor 192.168.0.2 activate

router bgp 65000 vrf vrfA
  address-family ipv4
    import vpn
    export vpn
    rd vpn export 192.168.0.1:1
    rt vpn both 65000:1
    label vpn export auto
    redistribute connected

end

r2.vtysh

int eth0
  ip addr 192.168.0.2/24

int eth1 vrf vrfA
  ip addr 192.168.2.1/24

router bgp 65001
  neighbor 192.168.0.1 remote-as 65000
  address-family ipv4 vpn
    neighbor 192.168.0.1 activate

router bgp 65001 vrf vrfA
  address-family ipv4
    import vpn
    export vpn
    rd vpn export 192.168.0.2:1
    rt vpn both 65000:1
    label vpn export auto
    redistribute connected

end