Cisco Systems Cisco IOS XR Connecting to the Router Through the Console Port

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Cisco IOS XR Getting Started Guide
OL-10957-02
Chapter1 Introduction to Cisco IOS XR Softwar e
Connecting to the Router Through the Console Port
Note Any LCC can host the DSC. The FCC cannot host the DSC function.
Selecting and Identifying the DSC on Cisco XR 12000 and 12000 Series R outers
A Cisco XR 12000 or 12000 Series router supports multiple PRPs. When the router is started for the first
time, the PRP in the lowest-numbered slot becomes the active PRP and is identified by the alphanumeric
display: ACTV RP. The active PRP serves as the DSC. If another PRP is configured as a standby PRP
for the DSC, that PRP can assume the DSC role if the DSC fails.
To have a PRP in a higher-numbered slot become the DSC, you must bring up the router with only that
PRP installed. After the chosen PRP becomes the DSC, it remains the DSC after subsequent restarts and
you can add the other PRPs.
Note Additional PRPs can be installed to host secure domain routers (SDRs), which are introduced in
Chapter 4, “Configuring General Router Features.” To configure general router features, you must
connect to the DSC. To configure SDR features, you must connect to the PRP for the appropriate SDR.
Connecting to the Router Through the Console Port
The first time you connect to a new router with Cisco IOS XR software, you must connect through the
Console port on the DSC. Although typical router con figuration and management take place using an
Ethernet port on the DSC, this port must be configured for your local area network before it can be used.
Figure 1-4 shows the RP connections on the Cisco CRS-1 16-Slot Line Card Chassis, and Figure 1-5
shows the RP connections on the Cisco CRS-1 4-Slot Line Card Chassis and Cisco CRS-1 8-Slot Line
Card Chassis. Figure 1-6 shows the PRP-2 connections on the Cisco XR 12000 Series Router.
Note Cisco IOS XR software does not support the PRP-1.