meta:
  id: "lab-vlan"
  name: "VLAN over shared trunk"
  description: >
    Two VLANs (5 and 7) isolated at L2, carried over a shared trunk link
    between two bridge nodes (bright and bleft).

networks:
  - name: netA
  - name: netB
  - name: netC  # trunk between bright and bleft
  - name: netD
  - name: netE

nodes:
  - name: hostA
    role: host
    interfaces:
      eth1:
        network: netA
        ip: "10.0.0.1/24"

  - name: hostB
    role: host
    interfaces:
      eth1:
        network: netB
        ip: "10.0.0.2/24"

  - name: hostD
    role: host
    interfaces:
      eth1:
        network: netD
        ip: "10.0.0.3/24"

  - name: hostE
    role: host
    interfaces:
      eth1:
        network: netE
        ip: "10.0.0.4/24"

  # Right bridge: connects hostA (VLAN 5) and hostB (VLAN 7) via trunk to bleft
  - name: bright
    role: switch
    interfaces:
      eth1:
        network: netA    # untagged port for VLAN 5
      eth2:
        network: netB    # untagged port for VLAN 7
      eth3:
        network: netC    # 802.1Q trunk to bleft
    vlans:
      - id: 5
        parent: eth3
        name: vlan5      # carries VLAN 5 over trunk
      - id: 7
        parent: eth3
        name: vlan7      # carries VLAN 7 over trunk
    bridges:
      - name: br5
        members: [eth1, vlan5]   # VLAN 5 domain
      - name: br7
        members: [eth2, vlan7]   # VLAN 7 domain

  # Left bridge: connects hostD (VLAN 5) and hostE (VLAN 7) via trunk to bright
  - name: bleft
    role: switch
    interfaces:
      eth1:
        network: netD    # untagged port for VLAN 5
      eth2:
        network: netE    # untagged port for VLAN 7
      eth3:
        network: netC    # 802.1Q trunk to bright
    vlans:
      - id: 5
        parent: eth3
        name: vlan5
      - id: 7
        parent: eth3
        name: vlan7
    bridges:
      - name: br5
        members: [eth1, vlan5]
      - name: br7
        members: [eth2, vlan7]