• Online (in-service) insertion and removal (OIR) is supported, enabling you to remove and install cards
while the router is operating. OIR is seamless to users on the network, maintains all routing information,
and ensures session preservation. You do not need to notify the software or reset the power. You have
the option of using the Cisco IOS XR
shutdown
command before removing a card.
OIR removes power to a specific slot before the switch fabric card is replaced. The power remains on for all
other slots.
Note
• The different cards and PLIMs in the LCC are all attached to the chassis itself using a pair of ejector
levers and captive screws. The two ejector levers release the card or PLIM from its midplane connector.
The exact locations of the ejector levers and captive screws vary slightly from card to card, but are, in
general, in the same locations: on the upper and bottom ends of the faceplate of the card. The following
figure shows the locations of the ejector levers and captive screws (on a modular services card (MSC)).
Figure 54: Ejector Levers and Captive Screws
Ejector lever
2
Captive screw
1
The following figure shows how to operate the ejector levers. Be sure to operate both levers simultaneously.
Cisco CRS Routers 16-Slot Line Card Chassis Installation Guide
106
Installing and Removing Line Cards, PLIMs, and Associated Components
Guidelines for Card Installation and Removal