Traffic handling summary

VLAN configuration Ingress traffic Egress traffic
Access interface with:
  • VLAN ID = X
  1. Untagged

  2. Tagged with VLAN ID = X
  3. Tagged with any other VLAN ID

  1. Untagged on VLAN X

  2. Untagged on VLAN X

  3. Dropped

Trunk interface with:
  • Untagged Native VLAN ID = X
  • Allowed VLAN IDs = X, Y, Z
  1. Untagged

  2. Tagged with VLAN ID = X
  3. Tagged with VLAN ID = Y
  4. Tagged with VLAN ID = Z
  5. Tagged with any other VLAN ID

  1. Untagged on VLAN X

  2. Untagged on VLAN X

  3. Tagged on VLAN Y
  4. Tagged on VLAN Z
  5. Dropped
Trunk interface with:
  • Untagged Native VLAN ID = X
  • Allowed VLAN IDs = ALL
  1. Untagged

  2. Tagged with VLAN ID = X
  3. Tagged with a VLAN ID defined on the switch
  4. Tagged with a VLAN ID not defined on the switch

  1. Untagged on VLAN X

  2. Untagged on VLAN X

  3. Tagged on the matching VLAN
  4. Dropped

Trunk interface with:
  • Tagged Native VLAN ID = X
  • Allowed VLAN IDs = X, Y, Z
  1. Untagged

  2. Tagged with VLAN ID = X
  3. Tagged with VLAN ID = Y
  4. Tagged with VLAN ID = Z

  5. Tagged with any other VLAN ID

  1. Dropped

  2. Tagged on VLAN X

  3. Tagged on VLAN Y
  4. Tagged on VLAN Z

  5. Dropped

Trunk interface with:
  • Tagged Native VLAN ID = X
  • Allowed VLAN IDs = ALL
  1. Untagged

  2. Tagged with VLAN ID = X
  3. Tagged with a VLAN ID defined on the switch
  4. Tagged with a VLAN ID not defined on the switch

  1. Dropped

  2. Tagged on VLAN X

  3. Tagged on the matching VLAN
  4. Dropped

Trunk interface with:
  • Untagged Native VLAN ID = A
  • Allowed VLAN IDs = X, Y, Z
  1. Untagged

  2. Tagged with VLAN ID = X
  3. Tagged with VLAN ID = Y
  4. Tagged with VLAN ID = Z

  5. Tagged with any other VLAN ID

  1. Dropped

  2. Tagged on VLAN X

  3. Tagged on VLAN Y
  4. Tagged on VLAN Z

  5. Dropped