Skip to content

Example: polka over gre

Alt text

r1

hostname r1
vrf def v1
 rd 1:1
 exit
router lsrp4 1
 vrf v1
 router 4.4.4.1
 segrout 10 1
 red conn
 exit
router lsrp6 1
 vrf v1
 router 6.6.6.1
 segrout 10 1
 red conn
 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
 ipv6 addr 1111::1 ffff::
 exit
int tun9
 tunnel vrf v1
 tunnel mode gre
 tunnel source ethernet1
 tunnel destination 1111::2
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234:1::1 ffff:ffff::
 mpls enable
 polka enable 1 65536 10
 router lsrp4 1 ena
 router lsrp6 1 ena
 exit
interface tun1
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 2.2.2.3
 tunnel domain-name 2.2.2.2
 tunnel mode polka
 vrf forwarding v1
 ipv4 address 3.3.3.1 255.255.255.252
 exit
interface tun2
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 4321::3
 tunnel domain-name 4321::2
 tunnel mode polka
 vrf forwarding v1
 ipv6 address 3333::1 ffff::
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
router lsrp4 1
 vrf v1
 router 4.4.4.2
 segrout 10 2
 red conn
 exit
router lsrp6 1
 vrf v1
 router 6.6.6.2
 segrout 10 2
 red conn
 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
 ipv6 addr 1111::2 ffff::
 exit
int tun9
 tunnel vrf v1
 tunnel mode gre
 tunnel source ethernet1
 tunnel destination 1111::1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1234:1::2 ffff:ffff::
 mpls enable
 polka enable 2 65536 10
 router lsrp4 1 ena
 router lsrp6 1 ena
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.2.5 255.255.255.0
 ipv6 addr 1234:2::2 ffff:ffff::
 mpls enable
 polka enable 2 65536 10
 router lsrp4 1 ena
 router lsrp6 1 ena
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 exit
router lsrp4 1
 vrf v1
 router 4.4.4.3
 segrout 10 3
 red conn
 exit
router lsrp6 1
 vrf v1
 router 6.6.6.3
 segrout 10 3
 red conn
 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 1.1.2.6 255.255.255.0
 ipv6 addr 1234:2::3 ffff:ffff::
 mpls enable
 polka enable 3 65536 10
 router lsrp4 1 ena
 router lsrp6 1 ena
 exit
interface tun1
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 2.2.2.1
 tunnel domain-name 2.2.2.2
 tunnel mode polka
 vrf forwarding v1
 ipv4 address 3.3.3.2 255.255.255.252
 exit
interface tun2
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 4321::1
 tunnel domain-name 4321::2
 tunnel mode polka
 vrf forwarding v1
 ipv6 address 3333::2 ffff::
 exit

r1 tping 100 20 2.2.2.2 vrf v1 sou lo0
r1 tping 100 20 4321::2 vrf v1 sou lo0
r1 tping 100 20 2.2.2.3 vrf v1 sou lo0
r1 tping 100 20 4321::3 vrf v1 sou lo0
r2 tping 100 20 2.2.2.1 vrf v1 sou lo0
r2 tping 100 20 4321::1 vrf v1 sou lo0
r2 tping 100 20 2.2.2.3 vrf v1 sou lo0
r2 tping 100 20 4321::3 vrf v1 sou lo0
r3 tping 100 20 2.2.2.2 vrf v1 sou lo0
r3 tping 100 20 4321::2 vrf v1 sou lo0
r3 tping 100 20 2.2.2.3 vrf v1 sou lo0
r3 tping 100 20 4321::3 vrf v1 sou lo0
r1 tping 100 20 3.3.3.2 vrf v1 sou tun1
r3 tping 100 20 3.3.3.1 vrf v1 sou tun1
r1 tping 100 20 3333::2 vrf v1 sou tun2
r3 tping 100 20 3333::1 vrf v1 sou tun2
  1. Install ContainerLab as described here
  2. Fetch mpls-polka08 file
  3. Launch ContainerLab mpls-polka08.yml topology: 

   containerlab deploy --topo mpls-polka08.yml
4. Destroy ContainerLab mpls-polka08.yml topology: 

   containerlab destroy --topo mpls-polka08.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 mpls-polka08.tst file here
  3. Launch mpls-polka08.tst test: 

   java -jar ../../rtr.jar test tester mpls-polka08 path ./ temp ./ wait
4. Destroy freeRtr mpls-polka08.tst test: 

   Ctrl-C (In freeRtr test window)