Juniper Networks MX240 manual DPC Components, Four-Port 10-Gigabit Ethernet DPC LEDs

MX240 Ethernet Services Router Hardware Guide

DPC Components

Each DPC consists of the following components:

■DPC cover, which functions as a ground plane and a stiffener.

■Fabric interfaces.

■Two Gigabit Ethernet interfaces that allow control information, route information, and statistics to be sent between the Routing Engine and the CPU on the DPCs.

■Two interfaces from the SCBs that enable the DPCs to be powered on and controlled.

■Physical DPC connectors.

■Four Packet Forwarding Engines.

■Midplane connectors and power circuitry.

■Processor subsystem, which includes a 1.2-GHz CPU, system controller, and 1 GB of SDRAM.

■Online button—Takes the DPC online or offline when pressed.

■LEDs on the 4-port 10-Gigabit Ethernet faceplate, which indicate the port status. LEDs are labeled top to bottom 0/0 through 0/3 (see Table 7 on page 10).

■LEDs on a 40-port Gigabit Ethernet faceplate indicate the port status. LEDs are labeled horizontally and left to right 0/0 through 0/5, 1/0 through 1/5, 2/0 through 2/5, and 3/0 through 3/5 (see Table 8 on page 10).

Table 7: Four-Port 10-Gigabit Ethernet DPC LEDs

Label	Color	State	Description
OK/FAIL	Green	On steadily	DPC is functioning normally.
	Red	On steadily	DPC has failed.
TUNNEL	Green	Off	Normal operating mode.
		On steadily	Port configured in tunnel mode.
LINK	Green	On steadily	Link is active.
		Off	No link.

Table 8: 40-Port Gigabit Ethernet DPC LEDs

Label	Color	State	Description
OK/FAIL	Green	On steadily	DPC is functioning normally.
	Red	On steadily	DPC has failed.

10■ Dense Port Concentrators (DPCs)