From: Chris Larson (clarson52@xxxxxxxx)
Date: Sun Nov 25 2001 - 13:42:39 GMT-3
That is correct, use the bandwidth command to affect metrics.
I was also told in one of my earlier classes that you would also set the
bandwidth command so that when you do a show interface the load is correct.
The router uses the bandwidth set to properly calculate load. However I have
been looking through CCO for some verification of this and have not found
any so.....
----- Original Message -----
From: "Shadi" <ccie@investorsgrp.com>
To: "michael robertson" <michael_w_2ca@yahoo.ca>; "Chris Larson"
<clarson52@home.com>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, November 25, 2001 10:25 AM
Subject: Re: Simple Question on serial interfaces.
> 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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