From: John Neiberger (neiby@xxxxxxxxxx)
Date: Thu Feb 21 2002 - 12:19:00 GMT-3
Take a look at the following link:
http://www.cisco.com/warp/public/97/is-is-ip-config.html
Toward the bottom of the page it mentions the following:
"The above output shows that the loopback address of this
router is advertised with a value of 0. This is because the
loopback is advertised with a passive-interface command under
the router IS-IS process, and the loopback interface by itself
is not enabled for IS-IS. All other IP prefixes have a value of
10, which is the default cost on the interfaces running IS-IS. "
This seems to be saying that if you create a loopback interface
but don't add ip router isis to it, and then you add a passive-
interface command this will cause the loopback address to be
advertised with a metric of zero.
I'm not sure what that means and I don't have a way to test it
here at work. However, that may be what you're looking for.
HTH,
John
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