[mrtg] Re: Cisco interface numbers

[Heath Deschenes]

Is this (ifindex persist) the best method of keeping the interfaces from
rearranging when a new card is added/removed and the router is rebooted? and
does it use much resources? I tried using the options listed and I keep
getting errors stating that --iref=name (also tried by type, IP, and eth) is
not unique for this interface.

Also, is there a way to save data from an old config to apply it to a newly
created config after the interfaces have changed for the purpose of keeping
history information?

Thank you,
Heath

-----Original Message-----
From: Paul C. Williamson [mailto:pwilliamson at mandtbank.com]
Sent: Tuesday, January 15, 2002 6:36 AM
To: kth at hp.is; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: Cisco interface numbers



The command we use (on IOS 12.1(5)T), is 

ifindex persist

Here's more info:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121
t/121t5/dt5ifidx.htm

Other than that, you can reference the interfaces by something else, like
description, ip, or one of the other options in cfgmaker.

Paul
>>> "Kristjan Thordarson" <kth at hp.is> 01/15/02 09:19AM >>>
Anyone know of a way to work around the way Cisco IOS routers re-arrages
it's interface numbers when it's reloaded?
 
Regards,
Kristjan
 

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