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Example: Configuring Service Chaining for LAN Routing on NFX250 NextGen Devices

This example shows how to configure service chaining for LAN routing.


This example uses an NFX250 NextGen device running Junos OS Release 19.1R1.


This example explains how to configure the various layers of the device to enable traffic flow within a LAN network.


This example uses the topology shown in Figure 1.

Figure 1: Service Chaining for LAN RoutingService Chaining for LAN Routing


Configuring the Layer 2 Datapath

Step-by-Step Procedure

  1. Configure VLANs for the LAN-side interfaces.

  2. Configure the LAN-side front panel ports and add them to the LAN-side VLAN.

  3. Configure the internal-facing interfaces as trunk ports and add them to the LAN-side VLAN. The internal-facing interfaces are typically trunk ports as they must support traffic from multiple front panel ports and VLANs.

Configuring the Layer 3 Datapath

Step-by-Step Procedure

  1. Configure VLAN tagging on ge-1/0/0:

  2. Configure VLAN tagging on ge-1/0/1: