Not sure if it's been mentioned or not but another good use of commit check is 
to confirm a commit confirmed. Typically people will issue a commit confirmed X 
to automatically rollback a change that didn't work. If the change did work 
many folks issue a commit to save the change and move forward. The problem with 
this is both your commit confirmed and subsequent commit burn rollbacks. A 
commit check will satisfy a commit confirmed without burning an additional 
rollback.


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On Tue, Sep 29, 2015 at 11:38 AM, Ryan Harden 
<harde...@uchicago.edu<mailto:harde...@uchicago.edu>> wrote:


We regularly make large config changes, 'commit check' to confirm there aren't 
any syntax errors, then save the change as a patch to be applied during a 
maintenance window.
This saves a ton of time during maint windows as we can do configs the day 
before and at least be sure there are no syntax errors in the patch. Maint 
windows simply become: load the patch, commit confirmed comment blah, verify, 
done.

/Ryan

Ryan Harden
Research and Advanced Networking Architect
University of Chicago - ASN160
P: 773.834.5441

> On Sep 28, 2015, at 4:24 PM, Martin T <m4rtn...@gmail.com> wrote:
>
> Hi,
>
> when I commit the candidate configuration in Junos, I tend to execute
> "commit check" and if configuration check succeeds, then I execute
> "commit comment <COMMENT>". However, when I think about it, "commit
> (comment)" itself should perform those very same checks that "commit
> check" does. If yes, then what is the point of "commit check"? Only
> purpose I could see is to check the validity of the candidate
> configuration in the middle of the configuration process, i.e. to
> check if the changes made in candidate configuration so far are fine
> but the candidate configuration is not ready to be committed.
>
>
> thanks,
> Martin
> _______________________________________________
> juniper-nsp mailing list juniper-nsp@puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp

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