Installation guide

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Cisco 10000 Series Routers Line Card Hardware Installation Guide
OL-6773-04
Chapter 17 Installing and Removing Line Cards
Online Insertion and Removal
Figure 17-1 Handling a Line Card
When a slot is not in use, a blank faceplate must fill the empty slot to allow the router or switch to
conform to electromagnetic interference (EMI) emissions requirements and to allow proper airflow
across the installed modules. If you plan to install a line card in a slot that is not in use, you must first
remove the blank faceplate.
Caution Do not install two blank faceplates into a carrier. Instead, install a full-slot blank faceplate into the slot.
The half-height blank faceplates do not have air dams, and the empty slot will rob cooling air from the
other slots. A carrier with one half-height line card and one blank faceplate is allowed.
Online Insertion and Removal
All line cards in the Cisco 10000 series routers support online insertion and removal (OIR). However, it
is wise to shut down the interface before removing a line card that has active traffic moving through it.
Removing a line card while traffic is flowing through the ports can cause system disruption. Once the
line card is inserted, the ports can be brought back up.
If you remove and replace the line card in the same slot, the system automatically downloads the
necessary configuration information from the Performance Routing Engine (PRE); you do not need to
configure the new line card. After the software downloads the information, the system recognizes only
those interfaces that match the previous line card configuration (configured as up).
Note As you disengage the line card from the router, online insertion and removal (OIR) administratively
shuts down all active interfaces on the line card.
OIR allows you to install and replace line cards while the router is operating; you do not need to notify
the software or shut down the system power, although you should not run traffic through the line card
you are removing while it is being removed. OIR is a method that is seamless to end users on the network
and maintains all routing information.
Caution Finish removing and replacing a line card before removing another line card.
1 Printed circuit board 2 Metal carrier
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