Skip to content

Example: bgp with bier

Alt text

r1

hostname r1
vrf def v1
 rd 1:1
 label-mode per-prefix
 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 eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.252
 ipv6 addr 1234:1::1 ffff:ffff::
 mpls enable
 exit
router bgp4 1
 vrf v1
 no safe-ebgp
 local-as 1
 bier 256 10 1 3
 router-id 4.4.4.1
 neigh 1.1.1.2 remote-as 2
 neigh 1.1.1.2 bier
 red conn
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 local-as 1
 bier 256 10 1 3
 router-id 6.6.6.1
 neigh 1234:1::2 remote-as 2
 neigh 1234:1::2 bier
 red conn
 exit
int tun1
 tun sou lo0
 tun dest 9.9.9.9
 tun doma 2.2.2.4
 tun vrf v1
 tun key 1
 tun mod bier
 vrf for v1
 ipv4 addr 3.3.3.1 255.255.255.252
 exit
int tun2
 tun sou lo0
 tun dest 9999::9
 tun doma 4321::4
 tun vrf v1
 tun key 1
 tun mod bier
 vrf for v1
 ipv6 addr 4321::1111 ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
access-list test4
 deny 1 any all any all
 permit all any all any all
 exit
access-list test6
 deny all 4321:: ffff:: all 4321:: ffff:: all
 permit all any all any all
 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 eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.252
 ipv6 addr 1234:1::2 ffff:ffff::
 mpls enable
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.1.5 255.255.255.252
 ipv6 addr 1234:2::1 ffff:ffff::
 mpls enable
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 exit
router bgp4 1
 vrf v1
 no safe-ebgp
 local-as 2
 bier 256 10 2 3
 router-id 4.4.4.2
 neigh 1.1.1.1 remote-as 1
 neigh 1.1.1.1 bier
 neigh 1.1.1.6 remote-as 3
 neigh 1.1.1.6 bier
 red conn
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 local-as 2
 bier 256 10 2 3
 router-id 6.6.6.2
 neigh 1234:1::1 remote-as 1
 neigh 1234:1::1 bier
 neigh 1234:2::2 remote-as 3
 neigh 1234:2::2 bier
 red conn
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
access-list test4
 deny 1 any all any all
 permit all any all any all
 exit
access-list test6
 deny all 4321:: ffff:: all 4321:: ffff:: all
 permit all any all any all
 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 eth1
 vrf for v1
 ipv4 addr 1.1.1.6 255.255.255.252
 ipv6 addr 1234:2::2 ffff:ffff::
 mpls enable
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.1.9 255.255.255.252
 ipv6 addr 1234:3::1 ffff:ffff::
 mpls enable
 ipv4 access-group-in test4
 ipv6 access-group-in test6
 exit
router bgp4 1
 vrf v1
 no safe-ebgp
 local-as 3
 bier 256 10 3 3
 router-id 4.4.4.3
 neigh 1.1.1.5 remote-as 2
 neigh 1.1.1.5 bier
 neigh 1.1.1.10 remote-as 4
 neigh 1.1.1.10 bier
 red conn
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 local-as 3
 bier 256 10 3 3
 router-id 6.6.6.3
 neigh 1234:2::1 remote-as 2
 neigh 1234:2::1 bier
 neigh 1234:3::2 remote-as 4
 neigh 1234:3::2 bier
 red conn
 exit

r4

hostname r4
vrf def v1
 rd 1:1
 label-mode per-prefix
 exit
int lo0
 vrf for v1
 ipv4 addr 2.2.2.4 255.255.255.255
 ipv6 addr 4321::4 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.10 255.255.255.252
 ipv6 addr 1234:3::2 ffff:ffff::
 mpls enable
 exit
router bgp4 1
 vrf v1
 no safe-ebgp
 local-as 4
 bier 256 10 4 3
 router-id 4.4.4.4
 neigh 1.1.1.9 remote-as 3
 neigh 1.1.1.9 bier
 red conn
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 local-as 4
 bier 256 10 4 3
 router-id 6.6.6.4
 neigh 1234:3::1 remote-as 3
 neigh 1234:3::1 bier
 red conn
 exit
int tun1
 tun sou lo0
 tun dest 9.9.9.9
 tun doma 2.2.2.1
 tun vrf v1
 tun key 3
 tun mod bier
 vrf for v1
 ipv4 addr 3.3.3.2 255.255.255.252
 exit
int tun2
 tun sou lo0
 tun dest 9999::9
 tun doma 4321::1
 tun vrf v1
 tun key 3
 tun mod bier
 vrf for v1
 ipv6 addr 4321::1112 ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0
 exit

r1 tping 0 20 2.2.2.4 vrf v1 sou lo0
r4 tping 0 20 2.2.2.1 vrf v1 sou lo0
r1 tping 0 20 4321::4 vrf v1 sou lo0
r4 tping 0 20 4321::1 vrf v1 sou lo0
r1 tping 100 60 3.3.3.2 vrf v1
r1 tping 100 60 4321::1112 vrf v1
r4 tping 100 60 3.3.3.1 vrf v1
r4 tping 100 60 4321::1111 vrf v1
  1. Install ContainerLab as described here
  2. Fetch rout-bgp313 file
  3. Launch ContainerLab rout-bgp313.yml topology: 

   containerlab deploy --topo rout-bgp313.yml
4. Destroy ContainerLab rout-bgp313.yml topology: 

   containerlab destroy --topo rout-bgp313.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-bgp313.tst file here
  3. Launch rout-bgp313.tst test: 

   java -jar ../../rtr.jar test tester rout-bgp313 path ./ temp ./ wait
4. Destroy freeRtr rout-bgp313.tst test: 

   Ctrl-C (In freeRtr test window)