From: John Conzone (jkconzone@xxxxxxxx)
Date: Mon Aug 21 2000 - 20:53:53 GMT-3
And 18 hex is 24. Okay, time to take a break!
Thanks!
----- Original Message -----
From: "Kent" <cciecn@yahoo.com>
To: "John Conzone" <jkconzone@home.com>; "ccielab" <ccielab@groupstudy.com>
Sent: Monday, August 21, 2000 6:19 PM
Subject: Re: NLSP route aggregation
> IPX uses hexdecimal, so 18 is hex.
>
> Kent
> --- John Conzone <jkconzone@home.com> wrote:
> > Need some help with NLSP area and route
> > aggregation. Excerpt from doc CD.
> >
> > Area Addresses
> > An area address uniquely identifies an NLSP area.
> > The area addresses configured on each router
> > determine the areas to which a router belongs.
> >
> > An area address consists of a pair of 32-bit
> > hexadecimal numbers that include an area number and
> > a corresponding mask. The mask indicates how much of
> > the area number identifies the area, and how much
> > identifies individual networks in the area. For
> > example, the area address pair 12345600FFFFFF00
> > describes an area composed of 256 networks in the
> > range 12345600 to 123456FF.
> >
> > I'm okay with this I think. We're masking the first
> > 24 bits, and don't care on the last 8. 8 bits for
> > networks and possible 256 networks. The next
> > paragraph describes route summarie, which make
> > sense. They follow the area address format. Now the
> > next part is where I lose it. Here it is.
> >
> > Aggregated Routes
> > An aggregated route is the single, compact data
> > structure that describes many IPX network numbers
> > simultaneously. The aggregated route represents all
> > the explicit routes defined by the route summary. In
> > an LSP, the router expresses an aggregated route as
> > a 1-byte number that gives the length, in bits, of
> > the portion of the 32-bit network number common to
> > all summarized addresses. The aggregated route for
> > 12345600FFFFFF00 is 18 12345600.
> >
> > The must match bits equal 24, not 18. Hence i would
> > expect 24 12345600, not 18 12345600. What am I
> > missing?
> >
> > Thanks!
> >
> >
>
>
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