From: Scott Morris (swm@emanon.com)
Date: Tue Jan 27 2004 - 15:01:25 GMT-3
Think about what it's used for any why... Think about the WHOLE picture.
Don't just assume the lab has it's head stuck someplace where the sun
doesn't shine just because one reply said the two aren't related. :)
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP,
JNCIS, et al.
IPExpert CCIE Program Manager
IPExpert Sr. Technical Instructor
swm@emanon.com/smorris@ipexpert.net
http://www.ipexpert.net
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Packet Man
Sent: Tuesday, January 27, 2004 12:20 PM
To: David.Bartlett@reuters.com; ccielab@groupstudy.com
Subject: RE: Bandwidth command
Thank you. I thought the solution wasn't correct but I tend to assume that
the people who write these practice labs know this stuff better than I do.
This just shows you that you can't always accept as fact what they say.
>From: David Bartlett <David.Bartlett@reuters.com>
>To: Packet Man <ccie2b@hotmail.com>, ccielab@groupstudy.com
>Subject: RE: Bandwidth command
>Date: Tue, 27 Jan 2004 16:42:02 +0000
>
>That's correct - the bw statement configured on an interface is only
>used by routing protocol best path calculations. To define actual CIR
>etc you would need to employ traffic shaping.
>
>David.
>
>-----Original Message-----
>From: Packet Man [mailto:ccie2b@hotmail.com]
>Sent: 27 January 2004 15:20
>To: ccielab@groupstudy.com
>Subject: Bandwidth command
>
>
>Hi all,
>
>I'm doing a practice lab which instructs me to set the CIR on various
>F/R
>p2p sub-interfaces. For example, it said to "Assume a CIR of 256k on the
>PVC
>to R3, a CIR of 128k to R2"... etc
>
>I was thinking about whether I should use GTS or FRTS, but in the
>solution
>configs, it used the bandwidth command to fulfill that requirement which
>I
>don't think is correct.
>
>Just to double check, I looked up the bandwidth command and this is what
>it
>said,
>
>
>Bandwidth Information
>The bandwidth command sets an informational parameter to communicate
>only
>the current bandwidth to the higher-level protocols; you cannot adjust
>the
>actual bandwidth of an interface using this command.
>
>
>------------------------------------------------------------------------
>--------
>Note This is a routing parameter only; it does not affect the physical
>
>interface.
>
>------------------------------------------------------------------------
>--------
>
>Changing Bandwidth
>For some media, such as Ethernet, the bandwidth is fixed; for other
>media,
>such as serial lines, you can change the actual bandwidth by adjusting
>hardware. For both classes of media, you can use the bandwidth
>configuration
>command to communicate the current bandwidth to the higher-level
>protocols.
>
>***********************
>
>I have 2 questions:
>
>Based on the stated requirement, does using the bandwidth command
>fulfill
>the requirement?
>
>Does using the bandwidth command shape or police traffic that exceeds
>the
>amount specified in the bandwidth command?
>
>The way I read it, the only thing the bandwidth command does is tell the
>
>routing protocol what bandwidth value to use in calculating costs. Do
>you
>agree?
>
>Thanks in advance.
>
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