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Configuring a Layer 3 Subinterface (CLI Procedure)
EX Series switches use Layer 3 subinterfaces to divide a physical interface into multiple logical interfaces, each corresponding to a VLAN. The switch uses the Layer 3 subinterfaces to route traffic between subnets.
To configure Layer 3 subinterfaces, you enable VLAN tagging and partition one or more physical ports into multiple logical interfaces, each corresponding to a VLAN ID.
Before you begin, make sure you set up your VLANs. See Configuring VLANs for EX Series Switches (CLI Procedure) or Configuring VLANs for EX Series Switches (J-Web Procedure).
To configure Layer 3 subinterfaces:
- Enable VLAN tagging:
[edit interfaces interface-name]
user@switch# set vlan-tagging - Bind each VLAN ID to a logical interface:
[edit interfaces interface-name]
user@switch# set unit logical-unit-number vlan-id (Layer 3 Subinterfaces) vlan-id-number
