Managing Configuration Sessions - Cisco Router IOS XR Getting Started Manual

Chapter 4 Configuring General Router Features
In the following example, the router enters interface configuration mode and the user selects a POS
interface for configuration. The command syntax is interface type rack/slot/module/port.
RP/0/RP0/CPU0:router(config)# interface POS 0/2/0/4
RP/0/RP0/CPU0:router(config-if)#
The command mode prompt changes from "
configuration commands for the specified interface.
To exit interface configuration mode and return to global configuration mode, enter the exit command.
Step 5
To return to EXEC mode, enter the end command.

Managing Configuration Sessions

In the Cisco IOS XR software, the running (active) configuration can never be altered directly. All
configuration changes are entered into an inactive target configuration. When the target configuration is
ready for use, you can apply that configuration to the router with the commit command. This two-stage
process allows configuration changes to be made, edited, and verified before the actual running state of
the router is impacted.
Figure 4-6
Figure 4-6
EXEC mode
Administration
Global configuration mode is used to configure SDR features, such as routing protocols and interfaces.
Administration configuration mode is used to assign hardware components to SDRs and to configure
multishelf systems.
The following sections describe the management options for configuration sessions:
•
•
•
•
•
•
OL-10957-02
illustrates the two-stage configuration process.
Two-Stage Configuration Process
Global
configuration
mode
Administration
configuration
mode
mode
Displaying the Active Configuration Sessions, page 4-24
Starting a Configuration Session, page 4-25
Starting an Exclusive Configuration Session, page 4-26
Displaying Configuration Details with show Commands, page 4-26
Saving the Target Configuration to a File, page 4-33
Loading the Target Configuration from a File, page 4-33
to
(config)" "(config-if)"
Stage 1:
Enter configuration
changes or load a
saved configuration.
Save configuration
changes to a file.
Cisco IOS XR Getting Started Guide
Managing Configuration Sessions
and you can now enter
Stage 2:
"Commit" changes
to the running
configuration.
4-23