From: Larson, Chris (Contractor) (Chris.Larson@xxxxxx)
Date: Wed Dec 19 2001 - 12:32:03 GMT-3
oh yes. Your right it does need to be contigous. I tried it that way and the
router complained. I am no NLSP expert either, in fact I rarely have needed
to summarize NLSP. I always have used the area-addres 0 0 and just
redistributed eigrp or rip. I am not even sure my answer is exactly right,
as I stated this was coming from CCO and what I learned in the ECP course.
I do have a question though. If you put
area-address 11 ??
does it append 0's or prepend 0's like it does when you do a ipx router
3.3.3
When you do an ipx router 3.3.3 it shows as 0003.0003.0003. Does
area-address have the same behaviour and is there a way to check without
going through setting up an entire NLSP area or domain in the lab.
Anyone?
-----Original Message-----
From: Wade Edwards [mailto:wade.edwards@powerupnetworks.com]
Sent: Wednesday, December 19, 2001 10:04 AM
To: Chris Larson; Jim Brown; Larson, Chris (Contractor);
ccielab@groupstudy.com
Subject: RE: What the heck is the NLSP area-address command for?
Does the mask have to be contiguous like it does in IP. The example you
showed have an area address of 22000000 FF000000 in order for everything
22xxxxxx to be summarized into one advertisement of 22000000. What you
have is that 22000000 will get summarized to 220000000 and everything
22xxxxxx will not get summarized. I don't know that much about NLSP but
the URL does talk about how the area-address command works and it is
similar to summarizing addresses in IP.
L8r.
-----Original Message-----
From: Chris Larson [mailto:clarson52@home.com]
Sent: Tuesday, December 18, 2001 8:09 PM
To: Jim Brown; 'Larson, Chris (Contractor)'; ccielab@groupstudy.com
Subject: Re: What the heck is the NLSP area-address command for?
Well, since no one else has elaborated I will try to explain again. I
may
not have this exactly right but this is how it was explained to me in
the
ECP course. Take it or leave it. Hopefully someone will clarify if it is
not
right. CCO says it defines networks in the area. But the way it really
operates is to summarize networks into an area. Call it what you will
this
is my understanding.
The area-address 0 0 means not to summarize.
so an
area-address 22000000 22ffffff
says sumarize all networks under the 22 address not, as one might think
to
only include the 22 network.
check the cco link again.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/nlsp.htm
01234500 FFFFFF00 would summarize all networks into the 012345 area.
R1 ----C1-------R2------C2-----R3------A4------R4
| | |
| | |
= 012345C1 = 012345C2 = 012345A4 = Area-address
01234500 FFFFFF00
Again the 00 in the right most place defines the networks to include or
summarize into the area address 012345
----- Original Message -----
From: "Jim Brown" <Jim.Brown@CaseLogic.com>
To: "'Larson, Chris (Contractor)'" <Chris.Larson@ed.gov>; "Jim Brown"
<Jim.Brown@CaseLogic.com>; <ccielab@groupstudy.com>
Sent: Tuesday, December 18, 2001 3:20 PM
Subject: RE: What the heck is the NLSP area-address command for?
> The point is..... I have multiple interfaces on a router, some I want
in
the
> NLSP process and some I want redistributed into the NLSP process as NX
> routes.
>
> Currently my tests have indicated it doesn't matter what I use for an
area
> address as long as I have one, they all jump into the process natively
as
N
> routes.
>
> The area-address 0 0 command is just an all 0's wildcard meaning grab
> everything for the process. How do I selectively engage certain
networks
> into the process as in OSPF?
>
> The only thing enabling NLSP under the interface does is allow the
process
> to form adjacencies with other NLSP routers. It basically starts
sending
> hellos when you enable it under the interface.
>
> The documentation on the CD states the area-address is for identifying
> networks for the process.
>
> Is there anyone out there who know NLSP? Somebody must have an answer.
>
> I'm running 12.1.1 enterprise code.
>
> -----Original Message-----
> From: Larson, Chris (Contractor) [mailto:Chris.Larson@ed.gov]
> Sent: Tuesday, December 18, 2001 1:05 PM
> To: 'Jim Brown'; Larson, Chris (Contractor); ccielab@groupstudy.com
> Subject: RE: What the heck is the NLSP area-address command for?
>
>
> Well, gee I guess you could have just done that in the first place.
>
> However, the reason I say it is used to summarize is because you can
simply
> say
>
> area-address 00
>
> and it will include all IPX networks that are defined using nslp
enable on
> the interface. Therefore the area-address command is really used to
> sumarrize those address on NLSP enabled interfaces. Therefore what
other
> purpose would area-address serve if you simply enable NLSP or define
NLSP
by
> using nlsp enable under the interface. Area-address is used to
SUMMARIZE.
>
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Jim Brown [mailto:Jim.Brown@CaseLogic.com]
> Sent: Tuesday, December 18, 2001 2:48 PM
> To: 'Larson, Chris (Contractor)'; Jim Brown; ccielab@groupstudy.com
> Subject: RE: What the heck is the NLSP area-address command for?
>
>
>
> xtocid148655BM_28482BM_1018265Directly from the Doc CD
>
> BM_27290area-address
>
>
> To define a set of network numbers to be part of the current NetWare
> Link-Services Protocol (NLSP) area, use the area-address command in
router
> configuration mode. To remove a set of network numbers from the
current
NLSP
> area, use the no form of this command.BM_1018267
>
> -----Original Message-----
> From: Larson, Chris (Contractor) [mailto:Chris.Larson@ed.gov]
> Sent: Tuesday, December 18, 2001 11:50 AM
> To: 'Jim Brown'; ccielab@groupstudy.com
> Subject: RE: What the heck is the NLSP area-address command for?
>
>
>
> I believe it is really just a tool for aggregating or summarizing NLSP
> networks, not defining them.
>
>
> -----Original Message-----
> From: Jim Brown [mailto:Jim.Brown@CaseLogic.com
> <mailto:Jim.Brown@CaseLogic.com> ]
> Sent: Tuesday, December 18, 2001 1:29 PM
> To: ccielab@groupstudy.com
> Subject: What the heck is the NLSP area-address command for?
>
>
> Running thought some testing the other night and I defined a network
between
>
> two routers, network 22. The router had a couple of other networks off
other
>
> interfaces involved in IPX RIP processes.
>
> I then added the area-address command to define an exact match,
area-address
>
> 22 FFFFFFFF.
>
> Guess what, the 22 network appeared as an N route but so did all of
the
> other attached interfaces that were different networks?
>
> What the heck is going on? I thought the area-address command defined
which
> networks were part of the routing process like OSPF?
>
> Can anyone help me?
> <http://www.groupstudy.com/list/posting.html>
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