T1600 Routers (Routing Matrix) Internal Ethernet Interfaces
On a T1600 router configured in a routing matrix, the Routing Engine (RE-TXP-LCC) and Control Board (LCC-CB) function as a unit, or host subsystem. For each host subsystem in the router, the Junos OS automatically creates two internal Ethernet interfaces, bcm0 and em1, for the two Gigabit Ethernet ports on the Routing Engine.
For more information about the management Ethernet interface and internal Ethernet interfaces on a TX Matrix Plus router and T1600 routers configured in a routing matrix, see the Junos Network Interfaces Configuration Guide.
