Skip to content

Example: ospf prefix movement

Alt text

r1

hostname r1
vrf def v1
 rd 1:1
 exit
route-map rm1
 set metric 10
 exit
router ospf4 1
 vrf v1
 router 4.4.4.1
 area 0 ena
 advertise 2.2.2.1/32 route-map rm1
 advertise 2.2.2.222/32 route-map rm1
 exit
router ospf6 1
 vrf v1
 router 6.6.6.1
 area 0 ena
 advertise 4321::1/128 route-map rm1
 advertise 4321::222/128 route-map rm1
 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 2.2.2.222 255.255.255.255
 ipv6 addr 4321::222 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo3
 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
server telnet tel
 vrf v1
 port 666
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.252
 ipv6 addr 1234:1::1 ffff:ffff::
 router ospf4 1 ena
 router ospf6 1 ena
 exit

r2

hostname r2
vrf def v1
 rd 1:1
 exit
router ospf4 1
 vrf v1
 router 4.4.4.2
 area 0 ena
 advertise 2.2.2.2/32
 exit
router ospf6 1
 vrf v1
 router 6.6.6.2
 area 0 ena
 advertise 4321::2/128
 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
 router ospf4 1 ena
 router ospf6 1 ena
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.2 255.255.255.252
 ipv6 addr 1234:1::2 ffff:ffff::
 router ospf4 1 ena
 router ospf6 1 ena
 exit
int eth2
 vrf for v1
 ipv4 addr 1.1.1.5 255.255.255.252
 ipv6 addr 1234:2::1 ffff:ffff::
 router ospf4 1 ena
 router ospf6 1 ena
 exit

r3

hostname r3
vrf def v1
 rd 1:1
 exit
route-map rm1
 set metric 20
 exit
router ospf4 1
 vrf v1
 router 4.4.4.3
 area 0 ena
 advertise 2.2.2.3/32 route-map rm1
 advertise 2.2.2.222/32 route-map rm1
 exit
router ospf6 1
 vrf v1
 router 6.6.6.3
 area 0 ena
 advertise 4321::3/128 route-map rm1
 advertise 4321::222/128 route-map rm1
 exit
int lo1
 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 lo2
 vrf for v1
 ipv4 addr 2.2.2.222 255.255.255.255
 ipv6 addr 4321::222 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
int lo3
 vrf for v1
 ipv4 addr 2.2.2.103 255.255.255.255
 ipv6 addr 4321::103 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 exit
server telnet tel
 vrf v1
 port 666
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.6 255.255.255.252
 ipv6 addr 1234:2::2 ffff:ffff::
 router ospf4 1 ena
 router ospf6 1 ena
 exit

r1 tping 100 40 2.2.2.2 vrf v1
r1 tping 100 40 4321::2 vrf v1
r1 tping 100 40 2.2.2.3 vrf v1
r1 tping 100 40 4321::3 vrf v1
r1 tping 100 40 2.2.2.222 vrf v1
r1 tping 100 40 4321::222 vrf v1
r2 tping 100 40 2.2.2.1 vrf v1
r2 tping 100 40 4321::1 vrf v1
r2 tping 100 40 2.2.2.3 vrf v1
r2 tping 100 40 4321::3 vrf v1
r2 tping 100 40 2.2.2.222 vrf v1
r2 tping 100 40 4321::222 vrf v1
r3 tping 100 40 2.2.2.1 vrf v1
r3 tping 100 40 4321::1 vrf v1
r3 tping 100 40 2.2.2.3 vrf v1
r3 tping 100 40 4321::3 vrf v1
r3 tping 100 40 2.2.2.222 vrf v1
r3 tping 100 40 4321::222 vrf v1
r2 tping 0 40 2.2.2.101 vrf v1
r2 tping 0 40 4321::101 vrf v1
r2 tping 0 40 2.2.2.103 vrf v1
r2 tping 0 40 4321::103 vrf v1
r2 send telnet 2.2.2.222 666 vrf v1
r2 tping 100 40 2.2.2.101 vrf v1
r2 send exit
r2 read closed
r2 tping 0 40 2.2.2.101 vrf v1
r2 send telnet 4321::222 666 vrf v1
r2 tping 100 40 2.2.2.101 vrf v1
r2 send exit
r2 read closed
r2 tping 0 40 2.2.2.101 vrf v1
r1 send conf t
r1 send route-map rm1
r1 send set metric 30
r1 send end
r1 send clear ipv4 route v1
r1 send clear ipv6 route v1
r1 tping 100 40 2.2.2.2 vrf v1
r1 tping 100 40 4321::2 vrf v1
r1 tping 100 40 2.2.2.3 vrf v1
r1 tping 100 40 4321::3 vrf v1
r1 tping 100 40 2.2.2.222 vrf v1
r1 tping 100 40 4321::222 vrf v1
r2 tping 100 40 2.2.2.1 vrf v1
r2 tping 100 40 4321::1 vrf v1
r2 tping 100 40 2.2.2.3 vrf v1
r2 tping 100 40 4321::3 vrf v1
r2 tping 100 40 2.2.2.222 vrf v1
r2 tping 100 40 4321::222 vrf v1
r3 tping 100 40 2.2.2.1 vrf v1
r3 tping 100 40 4321::1 vrf v1
r3 tping 100 40 2.2.2.3 vrf v1
r3 tping 100 40 4321::3 vrf v1
r3 tping 100 40 2.2.2.222 vrf v1
r3 tping 100 40 4321::222 vrf v1
r2 tping 0 40 2.2.2.101 vrf v1
r2 tping 0 40 4321::101 vrf v1
r2 tping 0 40 2.2.2.103 vrf v1
r2 tping 0 40 4321::103 vrf v1
r2 send telnet 2.2.2.222 666 vrf v1
r2 tping 100 40 2.2.2.103 vrf v1
r2 send exit
r2 read closed
r2 tping 0 40 2.2.2.103 vrf v1
r2 send telnet 4321::222 666 vrf v1
r2 tping 100 40 2.2.2.103 vrf v1
r2 send exit
r2 read closed
r2 tping 0 40 2.2.2.103 vrf v1
r1 send conf t
r1 send route-map rm1
r1 send set metric 10
r1 send end
r1 send clear ipv4 route v1
r1 send clear ipv6 route v1
r1 tping 100 40 2.2.2.2 vrf v1
r1 tping 100 40 4321::2 vrf v1
r1 tping 100 40 2.2.2.3 vrf v1
r1 tping 100 40 4321::3 vrf v1
r1 tping 100 40 2.2.2.222 vrf v1
r1 tping 100 40 4321::222 vrf v1
r2 tping 100 40 2.2.2.1 vrf v1
r2 tping 100 40 4321::1 vrf v1
r2 tping 100 40 2.2.2.3 vrf v1
r2 tping 100 40 4321::3 vrf v1
r2 tping 100 40 2.2.2.222 vrf v1
r2 tping 100 40 4321::222 vrf v1
r3 tping 100 40 2.2.2.1 vrf v1
r3 tping 100 40 4321::1 vrf v1
r3 tping 100 40 2.2.2.3 vrf v1
r3 tping 100 40 4321::3 vrf v1
r3 tping 100 40 2.2.2.222 vrf v1
r3 tping 100 40 4321::222 vrf v1
r2 tping 0 40 2.2.2.101 vrf v1
r2 tping 0 40 4321::101 vrf v1
r2 tping 0 40 2.2.2.103 vrf v1
r2 tping 0 40 4321::103 vrf v1
r2 send telnet 2.2.2.222 666 vrf v1
r2 tping 100 40 2.2.2.101 vrf v1
r2 send exit
r2 read closed
r2 tping 0 40 2.2.2.101 vrf v1
r2 send telnet 4321::222 666 vrf v1
r2 tping 100 40 2.2.2.101 vrf v1
r2 send exit
r2 read closed
r2 tping 0 40 2.2.2.101 vrf v1
r2 output show ipv4 ospf 1 nei
r2 output show ipv6 ospf 1 nei
r2 output show ipv4 ospf 1 dat 0
r2 output show ipv6 ospf 1 dat 0
r2 output show ipv4 ospf 1 tre 0
r2 output show ipv6 ospf 1 tre 0
r2 output show ipv4 route v1
r2 output show ipv6 route v1
  1. Install ContainerLab as described here
  2. Fetch rout-ospf37 file
  3. Launch ContainerLab rout-ospf37.yml topology: 

   containerlab deploy --topo rout-ospf37.yml
4. Destroy ContainerLab rout-ospf37.yml topology: 

   containerlab destroy --topo rout-ospf37.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-ospf37.tst file here
  3. Launch rout-ospf37.tst test: 

   java -jar ../../rtr.jar test tester rout-ospf37 path ./ temp ./ wait
4. Destroy freeRtr rout-ospf37.tst test: 

   Ctrl-C (In freeRtr test window)