From: Shadi (ccie@xxxxxxxxxxxxxxxx)
Date: Sun Nov 25 2001 - 12:25:51 GMT-3
Hi,
To the best of my knowledge, we usually need the Bandwidth command just to
effect the IGRP ,EIGRP and OSPF metric calculations and the best route, it
will not affect the actual bandwith whatever bandwidth you put. For the
clockrate, you need it only when you want to make the interface DCE side
only.
The maximum the bandwith on the interface depeneds on the External DCE
circuit like Modems or any other DCE device which can not reach the
Interface bandwidth limits.
Correct me if am wrong!
----- Original Message -----
From: "michael robertson" <michael_w_2ca@yahoo.ca>
To: "Chris Larson" <clarson52@home.com>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, November 25, 2001 10:24 AM
Subject: Re: Simple Question on serial interfaces.
> hi, there,
> I have noticed that the ios 12.1's default bandwidth
> is E1 which is 2.048 instead of 1.544 (T1). Any
> comments?
>
> michael
>
>
>
> --- Chris Larson <clarson52@home.com> wrote:
> > Use the bandwidth command for setting metrics and so
> > your load is calculated
> > accurately
> >
> > ----- Original Message -----
> > From: "Albert Lu" <albert_ccie@yahoo.com>
> > To: <ccielab@groupstudy.com>
> > Cc: <Charles.Conte@NASD.com>; "'Duy Nguyen'"
> > <net_port@hotmail.com>;
> > "'Phil'" <ciscostudent1@yahoo.com.br>
> > Sent: Saturday, November 24, 2001 6:57 PM
> > Subject: RE: Simple Question on serial interfaces.
> >
> >
> > > I just wanted to get this clear once and for all.
> > If in a lab, the
> > bandwidth
> > > of your WAN links (FR, Serial, ISDN, ATM) is not
> > specified, then what
> > should
> > > you put in?? Clock rate is not even specified, so
> > at the moment I just put
> > > in clock rate 64000, which I can easily be using
> > 128000 or 256000
> > depending
> > > on whether the hardware supports it.
> > >
> > > So if bandwith and clock rates are not specified,
> > then what number should
> > I
> > > plug in?
> > >
> > > Thanks
> > >
> > > Albert
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> > [mailto:nobody@groupstudy.com]On Behalf Of
> > > Phil
> > > Sent: Wednesday, November 21, 2001 10:35 PM
> > > To: Albert Lu; 'Duy Nguyen';
> > Charles.Conte@NASD.com
> > > Cc: ccielab@groupstudy.com
> > > Subject: RE: Simple Question on serial interfaces.
> > >
> > >
> > > The correct thing to do is ALWAYS make the
> > bandwidth reflect whatever the
> > > clockrate is in that interface.
> > > Phil.
> > > Albert Lu <albert_ccie@yahoo.com> escreveu: On
> > the otherhand, it seems
> > > like serial links always default to a T1
> > > 1.544Mbps for routing protocol cost calculations.
> > >
> > > Another question that has been in the back of my
> > mind is that when should
> > > the bandwidth statement be entered into the
> > interface? From various labs
> > > (eg. fatkid), and sources they say that it is a
> > good idea to always
> > include
> > > the bandwidth statement for all WAN interfaces
> > (FR, Ser, BRI, ATM). But if
> > > there were no specifications for what bandwidth to
> > put on the interfaces,
> > > then what can you do?
> > >
> > > I guess if the bandwidth statement was left off,
> > then they would default
> > to
> > > T1 and that should be ok.
> > >
> > > Albert
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> > [mailto:nobody@groupstudy.com]On Behalf Of
> > > Duy Nguyen
> > > Sent: Wednesday, November 21, 2001 2:02 PM
> > > To: Charles.Conte@NASD.com
> > > Cc: ccielab@groupstudy.com
> > > Subject: Re: Simple Question on serial interfaces.
> > >
> > >
> > > whatever you assign the clockrate, that's your
> > total bandwidth. Try to do
> > > tftp w/ 128k than try w/ 2048k you will see the
> > difference. clockrate=bw.
> > >
> > > Absolutely Positively Continuously Sincerely,
> > >
> > >
> > > Duy Nguyen CCNP/CCIE written
> > > net_port@hotmail.com
> > > Cell (817) 707-7451
> > >
> > >
> > >
> > > >From: "Conte, Charles"
> > > >Reply-To: "Conte, Charles"
> > > >To: "'ccielab@groupstudy.com'"
> > > >Subject: Simple Question on serial interfaces.
> > > >Date: Tue, 20 Nov 2001 20:31:14 -0500
> > > >
> > > >All,
> > > >
> > > > I have a real stupid question. Anyways to find
> > out what the serial
> > > >interface clockrate what do I have to do. Can I
> > assume that whatever it
> > > >assigns as BW is what the clockrate is set at. I
> > don't think this is true
> > > >because I configured my IGX to run on the
> > clockrate of 2048. Maybe I
> > > >missed
> > > >it when I did the show controller command or show
> > int serial command, but
> > > >help me out guys.
> > > >
> > > >Charles
> > >
> >
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