Cisco Systems IOS XR Manual De Usuario

For more information on configuration and management of users and user access privileges, see the 
following Cisco documents:

The Cisco IOS XR software places preset limits on the configurations you can apply to the running 
configuration of a router. These limits ensure that the router has sufficient system resources (such as 
RAM) for normal operations. Under most conditions, these preset limits are sufficient.

In some cases, for which a large number of configurations is required for a particular feature, it may be 
necessary to override the preset configuration limits. This override can be done only if configurations 
for another feature are low or unused. For example, if a router requires a large number of BGP 
configurations and Multiprotocol Label Switching (MPLS) is not being used at all, then the BGP limits 
can be increased to use the unused memory assigned to MPLS.

Overriding the default configuration limits can result in a low-memory condition. 

group group-name

RP/0/RP0/CPU0:router(config-un)# group sysadmin

Assigns the user named in Step 2 to a user group. 

The user takes on all attributes of the user group, as 
defined by the user group association to various task 
groups.

Each user must be assigned to at least one user group. 
A user may belong to multiple user groups.

Repeat Step 4 for each user group to be associated with 
the user specified in Step 2.

—

or

RP/0/RP0/CPU0:router(config-un)# end

or

RP/0/RP0/CPU0:router(config-un)# commit

Saves configuration changes.

When you issue the end command, the system prompts 
you to commit changes: 

Uncommitted changes found. Commit them?

Entering yes saves configuration changes to the 
running configuration file, exits the configuration 
session, and returns the router to EXEC mode.

Entering no exits the configuration session and 
returns the router to EXEC mode without 
committing the configuration changes.

Use the commit command to save the configuration 
changes to the running configuration file and remain 
within the configuration session.

Create users, assign users to user groups, create and 
modify user groups, and configure remote AAA access