spec.yaml

nodes:
  - name: R1
    image: nicolaka/netshoot
    interfaces:
      - { name: net0, type: direct, args: R2#net0 }
      - { name: net1, type: direct, args: C11#net0 }
      - { name: net2, type: direct, args: C21#net0 }
  - name: R2
    image: nicolaka/netshoot
    interfaces:
      - { name: net0, type: direct, args: R1#net0 }
      - { name: net1, type: direct, args: C12#net0 }
      - { name: net2, type: direct, args: C22#net0 }
  - name: C11
    image: nicolaka/netshoot
    interfaces: [ { name: net0, type: direct, args: R1#net1 } ]
  - name: C12
    image: nicolaka/netshoot
    interfaces: [ { name: net0, type: direct, args: R2#net1 } ]
  - name: C21
    image: nicolaka/netshoot
    interfaces: [ { name: net0, type: direct, args: R1#net2 } ]
  - name: C22
    image: nicolaka/netshoot
    interfaces: [ { name: net0, type: direct, args: R2#net2 } ]

node_configs:
  - name: R1
    cmds:
      - cmd: ip link add name vrf1 type vrf table 1001
      - cmd: ip link add name vrf2 type vrf table 1002
      - cmd: ip link set vrf1 up
      - cmd: ip link set vrf2 up
      - cmd: ip link set net1 vrf vrf1
      - cmd: ip link set net2 vrf vrf2

      - cmd: sysctl net.vrf.strict_mode=1
      - cmd: sysctl net.ipv4.conf.all.forwarding=1
      - cmd: sysctl net.ipv4.conf.all.rp_filter=0
      - cmd: sysctl net.ipv6.conf.all.disable_ipv6=0
      - cmd: sysctl net.ipv6.conf.all.forwarding=1
      - cmd: sysctl net.ipv6.conf.all.seg6_enabled=1

      - cmd: ip addr add fd00::1/64 dev net0
      - cmd: ip route add fd00:2::/64 via fd00::2

      - cmd: ip addr add 10.0.1.254/24 dev net1
      - cmd: ip addr add 10.0.1.254/24 dev net2

      - cmd: ip sr tunsrc set fd00::1
      - cmd: ip route add fd00:1::1 encap seg6local action End.DT4 vrftable 1001 dev vrf1
      - cmd: ip route add fd00:1::2 encap seg6local action End.DT4 vrftable 1002 dev vrf2
      - cmd: ip route add vrf vrf1 10.0.2.0/24 encap seg6 mode encap segs fd00:2::1 dev vrf1
      - cmd: ip route add vrf vrf2 10.0.2.0/24 encap seg6 mode encap segs fd00:2::2 dev vrf2
  - name: R2
    cmds:
      - cmd: ip link add name vrf1 type vrf table 1001
      - cmd: ip link add name vrf2 type vrf table 1002
      - cmd: ip link set vrf1 up
      - cmd: ip link set vrf2 up
      - cmd: ip link set net1 vrf vrf1
      - cmd: ip link set net2 vrf vrf2

      - cmd: sysctl net.vrf.strict_mode=1
      - cmd: sysctl net.ipv4.conf.all.forwarding=1
      - cmd: sysctl net.ipv4.conf.all.rp_filter=0
      - cmd: sysctl net.ipv6.conf.all.disable_ipv6=0
      - cmd: sysctl net.ipv6.conf.all.forwarding=1
      - cmd: sysctl net.ipv6.conf.all.seg6_enabled=1

      - cmd: ip addr add fd00::2/64 dev net0
      - cmd: ip route add fd00:1::/64 via fd00::1

      - cmd: ip addr add 10.0.2.254/24 dev net1
      - cmd: ip addr add 10.0.2.254/24 dev net2

      - cmd: ip sr tunsrc set fd00::2
      - cmd: ip route add fd00:2::1 encap seg6local action End.DT4 vrftable 1001 dev vrf1
      - cmd: ip route add fd00:2::2 encap seg6local action End.DT4 vrftable 1002 dev vrf2
      - cmd: ip route add vrf vrf1 10.0.1.0/24 encap seg6 mode encap segs fd00:1::1 dev vrf1
      - cmd: ip route add vrf vrf2 10.0.1.0/24 encap seg6 mode encap segs fd00:1::2 dev vrf2
  - name: C11
    cmds:
      - cmd: ip addr add 10.0.1.1/24 dev net0
      - cmd: ip route add 10.0.2.0/24 via 10.0.1.254
  - name: C12
    cmds:
      - cmd: ip addr add 10.0.2.1/24 dev net0
      - cmd: ip route add 10.0.1.0/24 via 10.0.2.254
  - name: C21
    cmds:
      - cmd: ip addr add 10.0.1.1/24 dev net0
      - cmd: ip route add 10.0.2.0/24 via 10.0.1.254
  - name: C22
    cmds:
      - cmd: ip addr add 10.0.2.1/24 dev net0
      - cmd: ip route add 10.0.1.0/24 via 10.0.2.254

test:
  - name: connectivity test
    cmds:
    - cmd: docker exec C11 ping -i 0.1 -c 3 10.0.2.1
    - cmd: docker exec C12 ping -i 0.1 -c 3 10.0.1.1
    - cmd: docker exec C21 ping -i 0.1 -c 3 10.0.2.1
    - cmd: docker exec C22 ping -i 0.1 -c 3 10.0.1.1