From: Michael Breen \(mbreen\) (mbreen@cisco.com)
Date: Fri Jun 20 2003 - 16:13:26 GMT-3
If you have ip router isis configured on the loopback and add the passive
interface command it will actually remome the ip router isis from the
loopback0 interface.
If you have passive interface under router isis and add ip router isis under
the loopback, it will remove the passive interface command from router isis.
In other words, it's one or the other no matter how you configure it..
--MB.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
kasturi cisco
Sent: Friday, June 20, 2003 10:40 AM
To: mohit.sharma@hp.com
Cc: ccielab@groupstudy.com
Subject: RE: ISIS loopback Dilemma
Mohit,
>From the link u sent the last para of that doc itself says that using
passive-interface advertises it but does not run ISIS on it, so that's the
answer. If u configure "ip router isis" the ISIS runs on the interface and
adding passive-interface makes it redundant i think.
somene correct me if i am wrong
Good Luck,
Kasturi.
>-----Original Message----- >From: SHARMA,MOHIT (HP-Germany,ex1)
[mailto:mohit.sharma@hp.com] >Sent: Friday, June 20, 2003 9:38 AM >To:
ccielab@groupstudy.com >Subject: ISIS loopback Dilemma > > >HI All, >
>One more question regarding ISIS. >If the question specifies that isis
should not send packets over loopback >interface but advertise it. >
>This link on Cisco
>http://www.cisco.com/warp/customer/97/is-is-ip-config.html does this by
>just specifying the lo interface as passive under router isis. >However
some other labs, also do specify "ip router isis" under the lo >interface
and then make it passive. > >I have tried both ways and both seem to work
the same way. > >The question now, is- Does it make a difference if we dont
specify the ip >router isis command under the lo interface? > >And THE
GOLDEN QUESTION- Which is the best way of doing it?? THE CISCO WAY
>;-) (maybe) > >Thanks as always. > >Smiles, > >Mohit. > >
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