From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Fri Jun 14 2002 - 02:01:54 GMT-3
yes, but it will not form adjacencies on secondary ip addresses...
rgds
Nick
----- Original Message -----
From: "elping" <elpingu@acedsl.com>
To: "Jason Sinclair" <sinclairj@powertel.com.au>
Cc: <kris.keen@aon.com.au>; <ccielab@groupstudy.com>
Sent: Friday, June 14, 2002 2:21 PM
Subject: Re: Few Questions
> I have configured secondaries on ospf and it works.......just define the
secondary
> on another area .
>
>
>
> Jason Sinclair wrote:
>
> > Kris,
> >
> > Some answers/thoughts are in-line below.
> >
> > Cheers,
> >
> > Jason Sinclair CCIE #9100
> > Manager, Network Control Centre
> > POWERTEL
> > 55 Clarence Street,
> > SYDNEY NSW 2000
> > AUSTRALIA
> > office: + 61 2 8264 3820
> > mobile: + 61 416 105 858
> > email: sinclairj@powertel.com.au
> >
> > -----Original Message-----
> > From: kris.keen@aon.com.au [mailto:kris.keen@aon.com.au]
> > Sent: Friday, 14 June 2002 12:54
> > To: ccielab@groupstudy.com
> > Subject: Few Questions
> >
> > Hi All,
> >
> > This may be a bit of the topic but I'd appreicate the help.
> >
> > 1) Whats the advantage of secondary addressing, design problems,
> > implementation problems, how do routing protocols handle this?
> > Issue with OSPF is that it does not run on secondaries.
> > Usually used for migration, LAN extension ,etc. Generally not a good
design
> > practice.
> > 2) how many bytes are using in mppp frames for seq and reassembly
> > As per RFC 1990 there is 4 bytes assigned for
sequencing.
> > 3) D channel uses out of band signling for BRI/PRI implementations, does
B
> > channels use in band? I just need to be clear
> > The D-Channel is actually the OOB signalling channel for
the
> > B channels.
> > 4) I understand that STUN with Direct encapsulation is the fastest
method,
> > is this correct? i believe this provides no error recovery like TCP
> > Rather than saying fastest, it would be better to say it
is
> > more efficient as there is less overhead. That said, there is no error
> > recovery mechanism and you cannot re-route around failures, etc.
> > 5) a larger X25 window size will allow x25 to be more efficent?
> > Generally yes, however X.25 was designed to be very
reliable
> > with a lot of in-built error checking mechanisms. Thus on noisy or dirty
> > lines a larger window size may actually reduce performance as there is
more
> > data to retransmit in a failure.
> > 6) how do routing protocols work with the NBMA problem on Frame Relay,
as I
> > understand it the broadcast keyword enables broadcasts to be forwared
> > across Frame Relay allow routing protocols to work.
> > Again, generally yes.
> >
> > These are in relation to the CID exam I just failed. I believe these are
> > points I need to know and I wasnt too clear on. Very badly worded exam,
> > would appreicate some assistance.
> >
> > Regards
> >
> > -----------------------------------------------------------------
> > Kris Keen - CCDA, CCNP, CNE
> > Network Support Specialist - Network Systems
> > Aon Risk Services Australia Limited
> > (612) 9253 7272
> > 0404862970
> > E: Kris.Keen@aon.com.au
> >
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