Skip to content

Example: nsh ip

Alt text

r1

hostname r1
vrf def v1
 rd 1:1
 exit
access-list test4
 sequence 10 permit all 1.1.1.1 255.255.255.255 all any all
 exit
access-list test6
 sequence 10 permit all 1111::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff all any all
 exit
int lo1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1111::1 ffff:ffff::
 exit
int eth1
 nsh ena
 exit
ipv4 pbr v1 sequence 10 test4 v1 nsh 2 255
ipv6 pbr v1 sequence 10 test6 v1 nsh 2 255
nsh 2 255 int eth1 0000.1111.2222
nsh 3 253 route v1

r2

hostname r2
int eth1
 nsh ena
 exit
int eth2
 nsh ena
 exit
nsh 3 254 int eth1 0000.1111.2222
nsh 2 254 int eth2 0000.1111.2222

r3

hostname r3
vrf def v1
 rd 1:1
 exit
access-list test4
 sequence 10 permit all 1.1.1.2 255.255.255.255 all any all
 exit
access-list test6
 sequence 10 permit all 1111::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff all any all
 exit
int lo1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.0
 ipv6 addr 1111::2 ffff:ffff::
 exit
int eth1
 nsh ena
 exit
ipv4 pbr v1 sequence 10 test4 v1 nsh 3 255
ipv6 pbr v1 sequence 10 test6 v1 nsh 3 255
nsh 3 255 int eth1 0000.1111.2222
nsh 2 253 route v1

r1 tping 100 10 1.1.1.2 vrf v1
r1 tping 100 10 1111::2 vrf v1
r3 tping 100 10 1.1.1.1 vrf v1
r3 tping 100 10 1111::1 vrf v1
  1. Install ContainerLab as described here
  2. Fetch mpls-nsh12 file
  3. Launch ContainerLab mpls-nsh12.yml topology: 

   containerlab deploy --topo mpls-nsh12.yml
4. Destroy ContainerLab mpls-nsh12.yml topology: 

   containerlab destroy --topo mpls-nsh12.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-nsh12.tst file here
  3. Launch mpls-nsh12.tst test: 

   java -jar ../../rtr.jar test tester mpls-nsh12 path ./ temp ./ wait
4. Destroy freeRtr mpls-nsh12.tst test: 

   Ctrl-C (In freeRtr test window)