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Example: interop9: bgp addpath

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r1

hostname r1
vrf def v1
 rd 1:1
 exit
int eth1
 vrf for v1
 ipv4 addr 1.1.1.1 255.255.255.0
 ipv6 addr 1234::1 ffff::
 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
router bgp4 1
 vrf v1
 address uni
 local-as 1
 router-id 4.4.4.1
 neigh 1.1.1.2 remote-as 1
 neigh 1.1.1.2 additional-path-tx uni
 neigh 1.1.1.2 additional-path-rx uni
 red conn
 exit
router bgp6 1
 vrf v1
 address uni
 local-as 1
 router-id 6.6.6.1
 neigh 1234::2 remote-as 1
 neigh 1234::2 additional-path-tx uni
 neigh 1234::2 additional-path-rx uni
 red conn
 exit

r2

hostname r2
set interfaces ge-0/0/0.0 family inet address 1.1.1.2/24
set interfaces ge-0/0/0.0 family inet6 address 1234::2/64
set interfaces lo0.0 family inet address 2.2.2.2/32
set interfaces lo0.0 family inet6 address 4321::2/128
set routing-options autonomous-system 1
set policy-options policy-statement ps1 from protocol direct
set policy-options policy-statement ps1 then accept
set protocols bgp export ps1
set protocols bgp group peer4 type internal
set protocols bgp group peer4 peer-as 1
set protocols bgp group peer4 family inet unicast add-path receive send path-count 4
set protocols bgp group peer4 neighbor 1.1.1.1
set protocols bgp group peer6 type internal
set protocols bgp group peer6 peer-as 1
set protocols bgp group peer6 family inet6 unicast add-path receive send path-count 4
set protocols bgp group peer6 neighbor 1234::1

r1 tping 100 10 1.1.1.2 vrf v1
r1 tping 100 10 1234::2 vrf v1
r1 tping 100 60 2.2.2.2 vrf v1 sou lo0
r1 tping 100 60 4321::2 vrf v1 sou lo0
  1. Install ContainerLab as described here
  2. Fetch intop9-bgp09 file
  3. Launch ContainerLab intop9-bgp09.yml topology: 

   containerlab deploy --topo intop9-bgp09.yml
4. Destroy ContainerLab intop9-bgp09.yml topology: 

   containerlab destroy --topo intop9-bgp09.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 intop9-bgp09.tst file here
  3. Launch intop9-bgp09.tst test: 

   java -jar ../../rtr.jar test tester intop9-bgp09 path ./ temp ./ wait
4. Destroy freeRtr intop9-bgp09.tst test: 

   Ctrl-C (In freeRtr test window)