From: anthony.sequeira@thomson.com
Date: Sat Dec 16 2006 - 03:21:30 ART
Lab Exam sections inevitably interrelate. So you may be asked to add a
Frame-Relay interface to an OSPF area and not be given any guidance on
the Network Type in the OSPF/IGP section. Just be aware that in other
sections - there may be a necessity for a certain type.
If there is indeed no other requirements that impact the interface -
then do not stress - configure the Frame Relay interface in OSPF in the
most efficient manner possible.
You need to know this stuff well enough to catch the interdependencies -
and you also need to be comfortable enough to not see "ghosts in the
machine".
Anthony J. Sequeira
#15626
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Alex De Gruiter
Sent: Friday, December 15, 2006 8:10 PM
To: ccielab@groupstudy.com
Subject: Selecting an OSPF network type - exam principles
I have a question in relation to selection of OSPF network type over
frame
relay (although it could apply to any media).
My question does not relate to how the neighborships are formed - there
are
countless other threads in the archives about that particular chestnut!
This
question is more simple:
If in the exam we are told to add a router's interfaces to an OSPF area,
and
one of those interfaces happens to be over frame relay, are we entitled
(or
expected) to change the OPSF network type, or should we leave the
network as
the default (and therefore enter the appropriate neighbor statements)?
There was a query a while back on this forum about modifying the hello
and
dead timers to improve convergence, and it was agreed that this practice
was
frowned upon (unless it was necessary to make the timers match). I am
curious
to learn Cisco's preference on OSPF network type designation. If the
question
simply states that the interface should be added, or that a particular
network
is included, are we entitled to change the OSPF network type, or should
we
leave it as is?
My personal preference would be to simply change the OSPF network types
to
point-to-point to reduce complexity, however I'm wondering whether that
would
be an appropriate or "legal" choice.
Comments welcome.
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