Juniper Networks M160 manual User@hostrequest chassis fpc slot slot-numberonline

M160 Internet Router Hardware Guide

interfaces that use it (such as ATM and SONET/SDH interfaces) emit laser light that can damage your eyes.

9.Insert the appropriate cable into the cable connector ports on each PIC on the FPC. Secure the cables so that they are not supporting their own weight. Place excess cable out of the way in a neatly coiled loop, using the cable management system. Placing fasteners on a loop helps to maintain its shape.

CAUTION: Do not let fiber-optic cable hang free from the connector. Do not allow fastened loops of cable to dangle, which stresses the cable at the fastening point.

CAUTION: Avoid bending fiber-optic cable beyond its minimum bend radius. An arc smaller than a few inches in diameter can damage the cable and cause problems that are difficult to diagnose.

10.Use one of the following methods to bring the FPC online:

Press and hold the FPC offline button until the green OK LED next to the button lights steadily, in about 5 seconds. The LEDS and offline button for each FPC are located directly above it on the craft interface.

Issue the following CLI command:

user@host>request chassis fpc slot slot-numberonline

For more information about the command, see the JUNOS Internet Software Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management.

As the FPC comes online, the green FPC LED labeled OK begins to blink. It continues to blink while the Routing Engine downloads software to the FPC, the FPC runs its diagnostics, and the PICs housed in the FPC are enabled. Packet forwarding then halts for about 200 ms while the Packet Forwarding Engine incorporates the memory on the new FPC into the memory buffers shared by all FPCs. When the FPC is online, the OK LED lights steadily.

CAUTION: After the OK LED lights steadily, wait at least 30 seconds before removing the FPC again, removing a FPC from a different slot, or inserting an FPC in

a different slot.

174 Replacing Packet Forwarding Engine Components