[rancid] Routing table

Ron Whitney ron.whitney at doitbest.com
Fri Mar 18 17:41:13 UTC 2011 

Personally, I'd want a way to turn it off globally for a device or set
of devices.  For my internal routers, I see it having value and I too
would welcome the feature.  However, for my Internet routers, I see no
reason to have RANCID look at 330,000+ prefixes that constantly change.
Perhaps a "knob" and a "switch" would be in order.


Ron Whitney
Network Administrator

Do it Best Corp. | 6502 Nelson Road | Fort Wayne, IN 46803
260.748.5657 (direct) | 260.748.5623 (fax) 



> -----Original Message-----
> From: rancid-discuss-bounces at shrubbery.net 
> [mailto:rancid-discuss-bounces at shrubbery.net] On Behalf Of 
> Bob Brunette
> Sent: Friday, March 18, 2011 13:22
> To: rancid-discuss at shrubbery.net
> Subject: Re: [rancid] Routing table
> 
> 
> A "knob" idea for minimizing noisiness would be to not output 
> routes that are newer than a hold-down period and instead 
> output a single "!Routing change detected" line at the end of 
> the routes display.  If you collect configs hourly, you could 
> set the hold-down timer to 65 minutes or so.
> 
> This way, you would see a single change with the "!Routing 
> change detected" line in your config history as long as 
> routes continue to flap between collections.  Obviously this 
> masks multiple routing changes and wouldn't help in 
> troubleshooting a route flapping problem, but that's not what 
> RANCID is for anyway.
> 
> Bob
> 
> 
> -----Original Message-----
> From: rancid-discuss-bounces at shrubbery.net 
> [mailto:rancid-discuss-bounces at shrubbery.net] On Behalf Of 
> Chris Gauthier
> Sent: Friday, March 18, 2011 12:01 PM
> To: rancid-discuss at shrubbery.net
> Subject: Re: [rancid] Routing table
> 
> I like the earlier idea of a "knob" to turn the feature on or 
> off.  It could be particularly "noisy" if you start having 
> dynamic routing problems.
> 
> Chris
> 
> 
> > -----Original Message-----
> > From: rancid-discuss-bounces at shrubbery.net [mailto:rancid-discuss- 
> > bounces at shrubbery.net] On Behalf Of Nick Buraglio
> > Sent: Friday, March 18, 2011 9:51 AM
> > To: james machado
> > Cc: rancid-discuss at shrubbery.net
> > Subject: Re: [rancid] Routing table
> > 
> > Ok. I'll add it to my to-do list.
> > 
> > --
> > nb
> > 
> > On Mar 18, 2011, at 11:45 AM, james machado <hvgeekwtrvl at gmail.com>
> > wrote:
> > 
> > > This would be a very nice thing to be able to do.  I 
> would be very 
> > > interested in this.
> > >
> > > James
> > >
> > > On Fri, Mar 18, 2011 at 9:27 AM, Nick Buraglio 
> <nick at buraglio.com> 
> > > wrote:
> > >> We are doing this with our regional network using some simple 
> > >> scripts and svn. I've often considered rolling this into 
> our rancid 
> > >> install and pushed it deeper into campuses. Is this something 
> > >> others may want?
> > >>
> > >>
> > >> --
> > >> nb
> > >>
> > >> On Mar 18, 2011, at 11:07 AM, Jethro R Binks 
> > >> <jethro.binks at strath.ac.uk>
> > wrote:
> > >>
> > >>> On Fri, 18 Mar 2011, Chris Gauthier wrote:
> > >>>
> > >>>> This is an interesting idea I had not considered 
> before.  I might 
> > >>>> also be interested in this "feature".
> > >>>
> > >>> I do this for h3crancid.  However, I need to arrange 
> for it to be 
> > >>> sorted, as the order tends to change sometimes causing 
> unnecessary 
> > >>> updates (OSPF campus environment).
> > >>>
> > >>> However, I suspect a knob is needed for the end user to 
> be able to 
> > >>> turn it on or off, as some people definitely won't want this, 
> > >>> especially if they are in an environment where the routes are 
> > >>> unstable for
> > whatever reason.
> > >>> Rancid's probably not the best tool in that case.
> > >>>
> > >>> J.
> > >>>
> > >>>
> > >>>>
> > >>>> Chris
> > >>>>
> > >>>>> -----Original Message-----
> > >>>>> From: rancid-discuss-bounces at shrubbery.net 
> > >>>>> [mailto:rancid-discuss- bounces at shrubbery.net] On Behalf Of 
> > >>>>> Joost Eijgenbrood
> > >>>>> Sent: Friday, March 18, 2011 8:23 AM
> > >>>>> To: rancid-discuss at shrubbery.net
> > >>>>> Subject: [rancid] Routing table
> > >>>>>
> > >>>>> Hi,
> > >>>>>
> > >>>>> I would like to start monitoring our routing table 
> for changes. 
> > >>>>> I found some instructions related to Rancid v2.3.1, 
> but for some 
> > >>>>> reason I cannot get it to work with my current version 2.3.6. 
> > >>>>> Not sure what's going on, but I must admit I'm not an 
> expert on 
> > >>>>> this topic.
> > >>>>>
> > >>>>> Is someone able to provide me with the config-changes 
> necessary 
> > >>>>> to be able to include a "show ip route" in each run?
> > >>>>>
> > >>>>> Thanks!
> > >>>>> Joost
> > >>>>>
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