7-7
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Chapter 7 RP Redundancy and Hardware Administration on Cisco IOS XR Software
Configure Routing Interfaces
NodeID for an Install Command (to Identify a Line Card Module)
The following command displays the active Cisco IOS XR software packages on a 10-GE line card
located in rack0, slot 3, with module CPU0:
show install active location nodeID
Example:
RP/0/RP0/CPU0:router# show install active location 0/3/CPU0
Node 0/3/CPU0 [LC]
Boot Image: /disk0/hfr-os-mbi-1.0.0/lc/mbihfr-lc.vm
Active Packages:
disk0:hfr-mpls-1.0.0
disk0:hfr-mcast-1.0.0
disk0:hfr-lc-1.0.0
disk0:hfr-fwdg-1.0.0
disk0:hfr-admin-1.0.0
disk0:hfr-base-1.0.0
disk0:hfr-os-mbi-1.0.0
Configure Routing Interfaces
The various router interfaces are the doors through which data travels on the network. Packets enter
through one interface, get processed and forwarded by the other router components, and exit through a
second interface. Packets can also be used or dropped by the router, and not forwarded through an
outgoing interface.
The following sections describe the physical components of the routing interface and the basic software
concepts and procedures used to configure interfaces:
• Physical Components of Routing Interfaces, page 7-7
• Configuring Interfaces in the Cisco IOS XR Software, page 7-11
Physical Components of Routing Interfaces
Two physical components that support routing interfaces are provided: the modular services cards
(MSCs) that provide the processing and forwarding capability, and the PLIMs that provide the physical
connections (ports) for the cables.
Note MSCs are also sometimes referred to as line cards.
MSCs and PLIMs are installed as a matched set: PLIMs are installed on one side of the chassis, and the
MSCs are installed in a corresponding slot on the opposite side. Figure 7-3 illustrates the location and
slot numbers for these cards.
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