[mrtg] Re: Interface reference

[Daniel R . Kilbourne]

and...keep in mindm expecially with a 7xxx series router, that
support for persistent ifindexes was added a while back


try:

router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
router(config)#snm
router(config)#snmp-server if
router(config)#snmp-server ifindex pe
router(config)#snmp-server ifindex persist

to see if the version of the IOS you have supports it.



this will keep the ifindex from changing when you add/remove
interfaces or when you reboot a box.



Roth, Gabrielle extolled:
> 
> I like using ifDescr (Serial1, Ethernet0, etc).  Even if the interface
> number changes, the name (usually) doesn't.  Also I find it a little easier
> when looking through pages and pages of mrtg output file listings to find
> the one named [router]-[interface].html.
> 
> JMO
> 
> -gr 
> 
> > -----Original Message-----
> > From: Martinez, Samson [mailto:SMartinez at LocaleSystems.com]
> > Sent: Wednesday, February 28, 2001 7:43 AM
> > To: MRTG (E-mail)
> > Subject: [mrtg] Interface reference
> > 
> > 
> > This is all personal opinion, obviously, but I'd like to get 
> > an idea of what
> > one would consider to be the most "fool-proof" method of identifying
> > interfaces in MRTG, one that would require the least amount 
> > of config file
> > changes should an interface be added/removed from a router, 
> > etc.
> 
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-- 
--------------------------------
Daniel R. Kilbourne
daniel.kilbourne at voyager.net
Network Engineering
CoreComm - Formerly Voyager.net
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