You can deploy supported devices in branch offices as an access or desktop switch with integrated routing capability, thus eliminating intermediate access switch devices from your network topology. The Ethernet ports provide switching while the Routing Engine provides routing functionality, enabling you to use a single device to provide routing, access switching, and WAN interfaces.
Juniper Networks supports switching features on the following Ethernet ports and devices:
Table 139: Supported Devices and Ports for Switching Features
On the J-series Services Router, you can set a multiport uPIM to three modes of operation: routing (the default), switching, or enhanced switching. Routed traffic is forwarded from any port of the Gigabit Ethernet uPIM to the WAN interface. Switched traffic is forwarded from one port of the Gigabit Ethernet uPIM to another port on the same Gigabit Ethernet uPIM. Switched traffic is not forwarded from a port on one uPIM to a port on a different uPIM.
On the SRX 240 services gateway, you can set the onboard Gigabit Ethernet ports to operate as either switched ports or routed ports.