From: Rob Webber (rwebber@xxxxxxxxxxxx)
Date: Mon Apr 30 2001 - 11:25:12 GMT-3
Obviously the stub attribute must be configured on all routers in the area.
My experience has been to configure stub no-summary on all routers in the
area. I have found no problems doing this and (imo) its a bit "cleaner"
simply because from a maintenance and trouble-shooting view you know exactly
how the area is configured simply by looking at any router in the area. Its
a little more consistent...
Rob.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Niall El-Assaad
Sent: Monday, April 30, 2001 8:51 AM
To: Chris Mott; CCIE
Subject: RE: OSPF: Does configuring totally stubby on non-ABRs casue any
problems?
I understand all that. Its just the configuration difference between stub
and totally stubby. Both send the same hellos. Totally stubby is defined on
an ABR and to stop LSA type 3s.
>From my configurations you can put
stub no-summary
on both intra-area routers and ABRs and it all works. I just wondered if it
did any harm. I don't think it does but then again its easy to be wrong.
good luck with you lab,
niall
=======================================================
Niall El-Assaad, Systems Engineer
EMEA-UK Retail Finance North
C i s c o S y s t e m s Mobile: +44 (0)772 088 4650
VMail: +44 (0)208 734 4206
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-----Original Message-----
From: Chris Mott [mailto:cmott@home.com]
Sent: 30 April 2001 13:42
To: CCIE; Niall El-Assaad
Subject: RE: OSPF: Does configuring totally stubby on non-ABRs casue any
problems?
I'm not sure why you would wish to put this on a non-ABR, since by
definition the stub area assignments are made on ABR's ... otherwise, yes it
would screw things up ... for one, neighbors must agree that a connection is
a stub connection, so all routers "neighbored" with your now-stub router
would need to be defined as such ... as well, now you are limiting, via the
type of stub area that you've defined (stub, NSSA, TS-NSSA, etc), the types
of LSA's that will propagate ... then there's troubleshooting this mess ...
all in all, not a good way to spend a morning in the lab ... use stubs if
they say, otherwise avoid them ... HTH
6 days to San Jose ... I'm feeling ill ... ;)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Niall El-Assaad
Sent: Monday, April 30, 2001 6:06 AM
To: ccielab@groupstudy.com
Subject: OSPF: Does configuring totally stubby on non-ABRs casue any
problems?
Hi,
I know that you only need to configure totally stubby on an ABR, but if you
do it on other routers in the area (non-ABR) does it cause any problems or
is it just over configuration.
cheers,
niall
=======================================================
Niall El-Assaad, Systems Engineer
EMEA-UK Retail Finance North
C i s c o S y s t e m s Mobile: +44 (0)772 088 4650
VMail: +44 (0)208 734 4206
| | Fax: +44 (0)161 864 4508
| |
||| |||
.:|||||:..:|||||:. E-mail: nelassaa@cisco.com
------------------ Web : http://www.cisco.com
Crescent House, Towers Business Park, Wilmslow Road,
Didsbury, Manchester M20 2JE, United Kingdom
========================================================
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