Basic Operation - Alcatel-Lucent 7450 Basic System Configuration Manual

Transactional Configuration
Transactional Configuration and Configuration Rollback support combine to provide the
operational model depicted in

Basic Operation

In order to edit the candidate configuration the operator must first enter the candidate edit
mode (edit-cfg). The operator can enter and quit the configuration mode as many times as
they wish before finally committing the candidate.
In edit-cfg mode the operator builds a set candidate configuration changes using the same CLI
tree as standard (line-by-line non-transactional) configuration. Tab completion and keyword
syntax checking is available.
Just as there is a single operational active configuration that can be modified simultaneously
by multiple users in the SR OS, there is also a single global candidate configuration instance.
All users make changes in the same global candidate configuration and a commit operation
by any user will commit the changes made by all users.
Users have the ability to exclusively create a candidate configuration by blocking other users
(and sessions of the same user) from entering edit-cfg mode.
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Figure 5: Router Configuration with Rollback and Transactions
Make Changes to the
Target Config in CLI
(Candidate Edit)
Candidate
Configuration
Candidate Save Candidate Load
Saved
Candidate
Figure 5.
Candidate Commit
Commit Triggers
a Rollback Save
Rollback Save
Basic System Configuration Guide
CLI
SNMP Commands
(Config)
(SAM)
Active
Configuration
Rollback
Checkpoint
Files
Rollback
Revert
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