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Example: multisite vpns over ibgp rr

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r1

hostname r1
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
vrf def v2
 rd 1:2
 rt-both 1:2
 exit
vrf def v3
 rd 1:3
 rt-both 1:3
 exit
vrf def v4
 rd 1:4
 rt-both 1:4
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.1 255.255.255.255
 ipv6 addr 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo2
 vrf for v2
 ipv4 addr 9.9.2.1 255.255.255.255
 ipv6 addr 9992::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo3
 vrf for v3
 ipv4 addr 9.9.3.1 255.255.255.255
 ipv6 addr 9993::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo4
 vrf for v4
 ipv4 addr 9.9.4.1 255.255.255.255
 ipv6 addr 9994::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234:1::1 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 2.2.2.2 255.255.255.255 1.1.1.2
ipv6 route v1 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::2
ipv4 route v1 2.2.2.3 255.255.255.255 1.1.1.3
ipv6 route v1 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::3
router bgp4 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 4.4.4.1
 neigh 1.1.1.4 remote-as 1
 neigh 1.1.1.4 update lo0
 neigh 1.1.1.4 send-comm both
 afi-vrf v2 ena
 afi-vrf v2 red conn
 afi-vrf v3 ena
 afi-vrf v3 red conn
 afi-vrf v4 ena
 afi-vrf v4 red conn
 exit
router bgp6 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 6.6.6.1
 neigh 1234:1::4 remote-as 1
 neigh 1234:1::4 update lo0
 neigh 1234:1::4 send-comm both
 afi-vrf v2 ena
 afi-vrf v2 red conn
 afi-vrf v3 ena
 afi-vrf v3 red conn
 afi-vrf v4 ena
 afi-vrf v4 red conn
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
vrf def v2
 rd 1:2
 rt-both 1:2
 exit
vrf def v3
 rd 1:3
 rt-both 1:3
 exit
vrf def v4
 rd 1:4
 rt-both 1:4
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.2 255.255.255.255
 ipv6 addr 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo2
 vrf for v2
 ipv4 addr 9.9.2.2 255.255.255.255
 ipv6 addr 9992::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo3
 vrf for v3
 ipv4 addr 9.9.3.2 255.255.255.255
 ipv6 addr 9993::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo4
 vrf for v4
 ipv4 addr 9.9.4.2 255.255.255.255
 ipv6 addr 9994::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1234:1::2 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 2.2.2.1 255.255.255.255 1.1.1.1
ipv6 route v1 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::1
ipv4 route v1 2.2.2.3 255.255.255.255 1.1.1.3
ipv6 route v1 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::3
router bgp4 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 4.4.4.2
 neigh 1.1.1.4 remote-as 1
 neigh 1.1.1.4 update lo0
 neigh 1.1.1.4 send-comm both
 afi-vrf v2 ena
 afi-vrf v2 red conn
 afi-vrf v3 ena
 afi-vrf v3 red conn
 afi-vrf v4 ena
 afi-vrf v4 red conn
 exit
router bgp6 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 6.6.6.2
 neigh 1234:1::4 remote-as 1
 neigh 1234:1::4 update lo0
 neigh 1234:1::4 send-comm both
 afi-vrf v2 ena
 afi-vrf v2 red conn
 afi-vrf v3 ena
 afi-vrf v3 red conn
 afi-vrf v4 ena
 afi-vrf v4 red conn
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
vrf def v2
 rd 1:2
 rt-both 1:2
 exit
vrf def v3
 rd 1:3
 rt-both 1:3
 exit
vrf def v4
 rd 1:4
 rt-both 1:4
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.3 255.255.255.255
 ipv6 addr 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo2
 vrf for v2
 ipv4 addr 9.9.2.3 255.255.255.255
 ipv6 addr 9992::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo3
 vrf for v3
 ipv4 addr 9.9.3.3 255.255.255.255
 ipv6 addr 9993::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo4
 vrf for v4
 ipv4 addr 9.9.4.3 255.255.255.255
 ipv6 addr 9994::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.3 255.255.255.0
 ipv6 addr 1234:1::3 ffff:ffff::
 mpls enable
 mpls ldp4
 mpls ldp6
 exit
ipv4 route v1 2.2.2.1 255.255.255.255 1.1.1.1
ipv6 route v1 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::1
ipv4 route v1 2.2.2.2 255.255.255.255 1.1.1.2
ipv6 route v1 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::2
router bgp4 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 4.4.4.3
 neigh 1.1.1.4 remote-as 1
 neigh 1.1.1.4 update lo0
 neigh 1.1.1.4 send-comm both
 afi-vrf v2 ena
 afi-vrf v2 red conn
 afi-vrf v3 ena
 afi-vrf v3 red conn
 afi-vrf v4 ena
 afi-vrf v4 red conn
 exit
router bgp6 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 6.6.6.3
 neigh 1234:1::4 remote-as 1
 neigh 1234:1::4 update lo0
 neigh 1234:1::4 send-comm both
 afi-vrf v2 ena
 afi-vrf v2 red conn
 afi-vrf v3 ena
 afi-vrf v3 red conn
 afi-vrf v4 ena
 afi-vrf v4 red conn
 exit

r4

hostname r4
vrf def v1
 rd 1:1
 exit
bridge 1
 mac-learn
 exit
int eth1
 bridge-gr 1
 exit
int eth2
 bridge-gr 1
 exit
int eth3
 bridge-gr 1
 exit
int bvi1
 vrf for v1
 ipv4 addr 1.1.1.4 255.255.255.0
 ipv6 addr 1234:1::4 ffff:ffff::
 exit
ipv4 route v1 2.2.2.3 255.255.255.255 1.1.1.3
ipv6 route v1 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::3
ipv4 route v1 2.2.2.2 255.255.255.255 1.1.1.2
ipv6 route v1 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::2
ipv4 route v1 2.2.2.1 255.255.255.255 1.1.1.1
ipv6 route v1 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::1
router bgp4 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 4.4.4.4
 neigh 2.2.2.1 remote-as 1
 neigh 2.2.2.1 send-comm both
 neigh 2.2.2.1 route-reflect
 neigh 2.2.2.2 remote-as 1
 neigh 2.2.2.2 send-comm both
 neigh 2.2.2.2 route-reflect
 neigh 2.2.2.3 remote-as 1
 neigh 2.2.2.3 send-comm both
 neigh 2.2.2.3 route-reflect
 exit
router bgp6 1
 vrf v1
 address vpnuni
 local-as 1
 router-id 6.6.6.4
 neigh 4321::1 remote-as 1
 neigh 4321::1 send-comm both
 neigh 4321::1 route-reflect
 neigh 4321::2 remote-as 1
 neigh 4321::2 send-comm both
 neigh 4321::2 route-reflect
 neigh 4321::3 remote-as 1
 neigh 4321::3 send-comm both
 neigh 4321::3 route-reflect
 exit

r1 tping 100 60 2.2.2.2 vrf v1 sou lo0
r1 tping 100 60 4321::2 vrf v1 sou lo0
r1 tping 100 60 2.2.2.3 vrf v1 sou lo0
r1 tping 100 60 4321::3 vrf v1 sou lo0
r2 tping 100 60 2.2.2.1 vrf v1 sou lo0
r2 tping 100 60 4321::1 vrf v1 sou lo0
r2 tping 100 60 2.2.2.3 vrf v1 sou lo0
r2 tping 100 60 4321::3 vrf v1 sou lo0
r3 tping 100 60 2.2.2.1 vrf v1 sou lo0
r3 tping 100 60 4321::1 vrf v1 sou lo0
r3 tping 100 60 2.2.2.2 vrf v1 sou lo0
r3 tping 100 60 4321::2 vrf v1 sou lo0
r4 tping 100 60 2.2.2.1 vrf v1 sou lo0
r4 tping 100 60 4321::1 vrf v1 sou lo0
r4 tping 100 60 2.2.2.2 vrf v1 sou lo0
r4 tping 100 60 4321::2 vrf v1 sou lo0
r4 tping 100 60 2.2.2.3 vrf v1 sou lo0
r4 tping 100 60 4321::3 vrf v1 sou lo0
r1 tping 100 60 9.9.2.2 vrf v2
r1 tping 100 60 9.9.2.3 vrf v2
r2 tping 100 60 9.9.2.1 vrf v2
r2 tping 100 60 9.9.2.3 vrf v2
r3 tping 100 60 9.9.2.1 vrf v2
r3 tping 100 60 9.9.2.2 vrf v2
r1 tping 100 60 9992::2 vrf v2
r1 tping 100 60 9992::3 vrf v2
r2 tping 100 60 9992::1 vrf v2
r2 tping 100 60 9992::3 vrf v2
r3 tping 100 60 9992::1 vrf v2
r3 tping 100 60 9992::2 vrf v2
r1 tping 100 60 9.9.3.2 vrf v3
r1 tping 100 60 9.9.3.3 vrf v3
r2 tping 100 60 9.9.3.1 vrf v3
r2 tping 100 60 9.9.3.3 vrf v3
r3 tping 100 60 9.9.3.1 vrf v3
r3 tping 100 60 9.9.3.2 vrf v3
r1 tping 100 60 9993::2 vrf v3
r1 tping 100 60 9993::3 vrf v3
r2 tping 100 60 9993::1 vrf v3
r2 tping 100 60 9993::3 vrf v3
r3 tping 100 60 9993::1 vrf v3
r3 tping 100 60 9993::2 vrf v3
r1 tping 100 60 9.9.4.2 vrf v4
r1 tping 100 60 9.9.4.3 vrf v4
r2 tping 100 60 9.9.4.1 vrf v4
r2 tping 100 60 9.9.4.3 vrf v4
r3 tping 100 60 9.9.4.1 vrf v4
r3 tping 100 60 9.9.4.2 vrf v4
r1 tping 100 60 9994::2 vrf v4
r1 tping 100 60 9994::3 vrf v4
r2 tping 100 60 9994::1 vrf v4
r2 tping 100 60 9994::3 vrf v4
r3 tping 100 60 9994::1 vrf v4
r3 tping 100 60 9994::2 vrf v4
  1. Install ContainerLab as described here
  2. Fetch rout-bgp113 file
  3. Launch ContainerLab rout-bgp113.yml topology: 

   containerlab deploy --topo rout-bgp113.yml
4. Destroy ContainerLab rout-bgp113.yml topology: 

   containerlab destroy --topo rout-bgp113.yml
5. Copy-paste configuration for each node in the lab topology

  1. Fetch or compile freeRtr rtr.jar file.
    You can grab it here
  2. Fetch rout-bgp113.tst file here
  3. Launch rout-bgp113.tst test: 

   java -jar ../../rtr.jar test tester rout-bgp113 path ./ temp ./ wait
4. Destroy freeRtr rout-bgp113.tst test: 

   Ctrl-C (In freeRtr test window)