Junos commit, rollback, show configuration
- Fundamentals
- Beginner
- 7 min
- 3 steps
- Junos-style
Persist a change with commit, render the running config with show configuration, and undo it with rollback. The Junos triad of "apply / inspect / revert."
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Free · no install · no account
Scenario
Junos persistence is implicit: a successful commit writes the candidate to running and keeps the previous running as rollback 1. Up to 50 commits are kept, so rollback N is always available as the safety net. Unlike Cisco, there's no separate write memory — commit is the persist. Unlike VyOS, there's no separate save — Junos persists as part of commit.
Topology
1 × router · Junos-style
jnx1— router
What you will do
From cfg mode, stage
set interfaces ge-0/0/0 description test-uplinkandcommit.Roll back the change with
rollback 1and re-commit to drop the description.Render the running config with
show configuration(or justshowfrom cfg mode).
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