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Example: isis with bgp linkstate

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
int lo1
 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 v1
 ipv4 addr 2.2.2.101 255.255.255.255
 ipv6 addr 4321::101 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
router isis4 1
 vrf v1
 net 48.4444.0000.1111.00
 justadvert lo1
 exit
router isis6 1
 vrf v1
 net 48.6666.0000.1111.00
 justadvert lo1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 router isis4 1 ena
 exit
int eth2
 vrf for v1
 ipv6 addr 1234::1 ffff::
 router isis6 1 ena
 exit
router bgp4 1
 vrf v1
 no safe-ebgp
 address uni linkstate
 local-as 1
 router-id 4.4.4.1
 neigh 1.1.1.2 remote-as 2
 neigh 1.1.1.2 linkstate
 afi-link isis4 1 2
 justadvert lo2
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 address uni linkstate
 local-as 1
 router-id 6.6.6.1
 neigh 1234::2 remote-as 2
 neigh 1234::2 linkstate
 afi-link isis6 1 2
 justadvert lo2
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
int lo1
 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 v1
 ipv4 addr 2.2.2.102 255.255.255.255
 ipv6 addr 4321::102 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
router isis4 1
 vrf v1
 net 48.4444.0000.2222.00
 justadvert lo1
 exit
router isis6 1
 vrf v1
 net 48.6666.0000.2222.00
 justadvert lo1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 router isis4 1 ena
 exit
int eth2
 vrf for v1
 ipv6 addr 1234::2 ffff::
 router isis6 1 ena
 exit
router bgp4 1
 vrf v1
 no safe-ebgp
 address uni linkstate
 local-as 2
 router-id 4.4.4.2
 neigh 1.1.1.1 remote-as 1
 neigh 1.1.1.1 linkstate
 afi-link isis4 1 2
 justadvert lo2
 exit
router bgp6 1
 vrf v1
 no safe-ebgp
 address uni linkstate
 local-as 2
 router-id 6.6.6.2
 neigh 1234::1 remote-as 1
 neigh 1234::1 linkstate
 afi-link isis6 1 2
 justadvert lo2
 exit

r1 tping 100 20 2.2.2.2 vrf v1
r2 tping 100 20 2.2.2.1 vrf v1
r1 tping 100 20 4321::2 vrf v1
r2 tping 100 20 4321::1 vrf v1
r1 tping 100 20 2.2.2.102 vrf v1
r2 tping 100 20 2.2.2.101 vrf v1
r1 tping 100 20 4321::102 vrf v1
r2 tping 100 20 4321::101 vrf v1
r2 output show ipv4 isis 1 nei
r2 output show ipv6 isis 1 nei
r2 output show ipv4 isis 1 dat 2
r2 output show ipv6 isis 1 dat 2
r2 output show ipv4 isis 1 tre 2
r2 output show ipv6 isis 1 tre 2
r2 output show ipv4 route v1
r2 output show ipv6 route v1
r1 output show ipv4 bgp 1 uni dat
r1 output show ipv6 bgp 1 uni dat
r1 output show ipv4 bgp 1 links dat
r1 output show ipv6 bgp 1 links dat
  1. Install ContainerLab as described here
  2. Fetch rout-isis065 file
  3. Launch ContainerLab rout-isis065.yml topology: 

   containerlab deploy --topo rout-isis065.yml
4. Destroy ContainerLab rout-isis065.yml topology: 

   containerlab destroy --topo rout-isis065.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-isis065.tst file here
  3. Launch rout-isis065.tst test: 

   java -jar ../../rtr.jar test tester rout-isis065 path ./ temp ./ wait
4. Destroy freeRtr rout-isis065.tst test: 

   Ctrl-C (In freeRtr test window)