Example: cross connect ethernet interfaces

TopologyConfigurationsVerificationEmulation

r1

hostname r1
vrf def v1
 rd 1:1
 exit
int eth1
 vrf for v1
 ipv4 addr 2.2.2.1 255.255.255.0
 ipv6 addr 4321::1 ffff::
 exit

r2

hostname r2
int eth1
 exit
int eth2
 exit
connect con
 side1 eth1
 side2 eth2
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 exit
int eth1
 vrf for v1
 ipv4 addr 2.2.2.2 255.255.255.0
 ipv6 addr 4321::2 ffff::
 exit

r1 tping 100 30 2.2.2.2 vrf v1
r1 tping 100 30 4321::2 vrf v1
r3 tping 100 30 2.2.2.1 vrf v1
r3 tping 100 30 4321::1 vrf v1

ContainerLabfreeRtr CLI

1. Install ContainerLab as described here
2. Fetch conn-xconn08 file
3. Launch ContainerLab conn-xconn08.yml topology:

   containerlab deploy --topo conn-xconn08.yml  

4. Destroy ContainerLab conn-xconn08.yml topology:

   containerlab destroy --topo conn-xconn08.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 conn-xconn08.tst file here
3. Launch conn-xconn08.tst test:

   java -jar ../../rtr.jar test tester conn-xconn08 path ./ temp ./ wait

4. Destroy freeRtr conn-xconn08.tst test:

   Ctrl-C (In freeRtr test window)