bgp_ecmp.yml

nodes:
  - name: R1
    image: slankdev/frr
    interfaces:
      - { name: net0, type: direct, args: C1#net0 }
      - { name: net1, type: direct, args: R2#net1 }
      - { name: net2, type: direct, args: R3#net2 }
  - name: R2
    image: slankdev/frr
    interfaces:
      - { name: net1, type: direct, args: R1#net1 }
      - { name: net3, type: direct, args: C2#net3 }
  - name: R3
    image: slankdev/frr
    interfaces:
      - { name: net2, type: direct, args: R1#net2 }
      - { name: net4, type: direct, args: C3#net4 }
  - name: C1
    image: slankdev/ubuntu:18.04
    interfaces:
      - { name: net0, type: direct, args: R1#net0 }
  - name: C2
    image: slankdev/ubuntu:18.04
    interfaces:
      - { name: net3, type: direct, args: R2#net3 }
  - name: C3
    image: slankdev/ubuntu:18.04
    interfaces:
      - { name: net4, type: direct, args: R3#net4 }

node_configs:
  - name: R1
    cmds:
      # - cmd: echo 'ecmp=yes' >> /etc/frr/daemons
      - cmd: /usr/lib/frr/frr start
      - cmd: ip addr add 192.168.0.2/24 dev net0
      - cmd: ip addr add 10.0.2.1/24 dev net1
      - cmd: ip addr add 10.0.3.1/24 dev net2
      - cmd: >-
          vtysh -c 'conf t'
          -c 'router bgp 100'
          -c '  bgp router-id 1.1.1.1'
          -c '  bgp bestpath as-path multipath-relax'
          -c '  neighbor 10.0.2.2 remote-as 200'
          -c '  neighbor 10.0.3.2 remote-as 300'
          -c '  address-family ipv4 unicast'
          -c '   redistribute connected' 
          -c '  exit-address-family'
          -c 'exit'
  - name: R2
    cmds:
      - cmd: /usr/lib/frr/frr start
      - cmd: ip addr add 10.0.2.2/24 dev net1
      - cmd: ip addr add 192.168.100.10/24 dev net3
      - cmd: >-
          vtysh -c 'conf t'
          -c 'router bgp 200'
          -c '  bgp router-id 2.2.2.2'
          -c '  neighbor 10.0.2.1 remote-as 100'
          -c '  network 192.168.100.0/24'
          -c 'exit'
  - name: R3
    cmds:
      - cmd: /usr/lib/frr/frr start
      - cmd: ip addr add 10.0.3.2/24 dev net2
      - cmd: ip addr add 192.168.100.10/24 dev net4
      - cmd: >-
          vtysh -c 'conf t'
          -c 'router bgp 300'
          -c '  bgp router-id 3.3.3.3'
          -c '  neighbor 10.0.3.1 remote-as 100'
          -c '  network 192.168.100.0/24'
          -c 'exit'
  - name: C1
    cmds:
      - cmd: ip addr add 192.168.0.1/24 dev net0
      - cmd: ip route add default via 192.168.0.2
  - name: C2
    cmds:
      - cmd: ip addr add 192.168.100.1/24 dev net3
      - cmd: ip route add default via 192.168.100.10
  - name: C3
    cmds:
      - cmd: ip addr add 192.168.100.1/24 dev net4
      - cmd: ip route add default via 192.168.100.10