From: ccie2be (ccie2be@nyc.rr.com)
Date: Fri Mar 28 2003 - 18:31:39 GMT-3
Thanks for all the feedback. I think I got now. Jim
----- Original Message -----
From: "CCIE FUN" <ccieexam2002@yahoo.com>
To: "Hunt Lee" <huntl@webcentral.com.au>; "'ccie2be'" <ccie2be@nyc.rr.com>
Cc: <ccielab@groupstudy.com>
Sent: Friday, March 28, 2003 11:08 AM
Subject: RE: IS-IS NET clarification
> As long as the MAC address is unique within an ISIS
> area, it does not matter what numbers are used.
> However generally it is a good practice to use the
> mac-address of your ethernet interface(if
> available)and that interface does not have to be up.
>
> so your ISIS net statement would be something like
> this
>
> router isis
> net 00.0001.0009.7c66.9560.00
>
> here is the output to verify you are routing for
> correct isis area.
> Router#sh clns pro
>
> IS-IS Router: <Null Tag>
> System Id: 0009.7C66.9560.00 IS-Type: level-1-2
> Manual area address(es):
> 00.0001
> Routing for area address(es):
> 00.0001
> No interfaces in domain/area.
> Redistribute:
> static (on by default)
> Distance for L2 CLNS routes: 110
> RRR level: none
> Generate narrow metrics: level-1-2
> Accept narrow metrics: level-1-2
> Generate wide metrics: none
> Accept wide metrics: none
>
> Hunt
> i think when the example you used will create an area
> 00, not 00.0001
> here is the output using your ISIS statement.
>
> Router#sh clns protocol
>
> IS-IS Router: <Null Tag>
> System Id: 0001.1111.1111.00 IS-Type: level-1-2
> Manual area address(es):
> 00
> Routing for area address(es):
> 00
> No interfaces in domain/area.
> Redistribute:
> static (on by default)
> Distance for L2 CLNS routes: 110
> RRR level: none
> Generate narrow metrics: level-1-2
> Accept narrow metrics: level-1-2
> Generate wide metrics: none
> Accept wide metrics: none
>
>
> thanks
> --- Hunt Lee <huntl@webcentral.com.au> 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
>
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop!
> http://platinum.yahoo.com
This archive was generated by hypermail 2.1.4 : Sat Apr 05 2003 - 08:51:46 GMT-3