RE: IS-IS NET clarification

From: Hunt Lee (huntl@webcentral.com.au)
Date: Thu Mar 27 2003 - 20:22:01 GMT-3


oh crap.... I missed 4 digits in the middle ;)

-----Original Message-----
From: Tim Fletcher [mailto:tim@fletchmail.net]
Sent: Friday, 28 March 2003 12:59 AM
To: Hunt Lee
Subject: RE: IS-IS NET clarification

Hunt,

A minor correction here. If the area ID is 00.0001, then my understanding
is that the NET would have to be something like 00.0001.1111.1111.1111.00.
I'm pretty sure I lost points over this exact issue on my last attempt.

-Tim Fletcher

At 09:02 AM 3/27/2003 +1000, you wrote:
>Hi ccie2be,
>
>This is only a suggestion...
>
>You can append anything you make up
>
>e.g. Area ID = 00.0001
>
>So the NET can be = 00.0001.1111.1111.00
>
>Regards,
>Hunt
>
>
>-----Original Message-----
>From: ccie2be [mailto:ccie2be@nyc.rr.com]
>Sent: Thursday, 27 March 2003 7:44 AM
>To: Group Study
>Subject: IS-IS NET clarification
>
>
>Hi,
>
>I hope this isn't a silly question.
>
>In Doyle's book, he says that usually the NET is made up from the area ID
>with
>the MAC address appended to it.
>
>I'm wondering is this a rule or a suggestion? And, if it's a rule, does it
>matter which MAC address is used?
>
>Since the NET in ISIS is comparable to the Router ID in OSPF and applies to
>the router as a whole, it seems to me it shouldn't matter what MAC address
>is
>used. And, taking that 1 step further, if it doesn't matter what MAC
>address
>is used, perhaps it doesn't matter if a MAC address is used at all.
>
>Please set me straight on this. Thanks, Jim



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