RE: DSCP Marking ??

From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Sun Jul 23 2006 - 18:09:41 ART


You are only remarking

R4(config-cmap)#match ip dscp ?
<snip>
  cs4 Match packets with CS4(precedence 4) dscp (100000)
</snip>

But the leading 0 are missing
So = 00100000
128 64 32 16 8 4 2 1
0 0 1 0 0 0 0 0

See why 32?

Now for the rate-limit part send traffic at 100 Kbps use a token buket size
of 8000 Bytes and please do not perform excess bucket operation Bc=Be
So Traffic that either conform or exceed, remark then to CS4

Victor.

-----Mensaje original-----
De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de
spycharlies@hotmail.com
Enviado el: Domingo, 23 de Julio de 2006 04:51 p.m.
Para: ccielab@groupstudy.com
Asunto: DSCP Marking ??

IEWBv3.vol2.lab8 task8.2
       |
  go/o |
------(R6)s0----(BB1)
       |
       |
my diagram is a little messed up, but R6 connects to the internal networks
with g0/0 interface, and to the BB1 with s0 interface.

TASK
-----
In order to get expedited forwarding throughout the Internet configure R6
to mark your PC's traffic with DSCP value os CS4.

Your PC's IP is 137.1.46.80, Donot use "class-map" to accpmplish this.

Solution
----------
interface GigabitEthernet0/0
rate-limit input access-group 1 100000 8000 8000 conform-action~
set-dscp-transmit 32 exceed-action set-dscp-transmit 32
!
access-list 1 permit 137.1.46.80

Could someone please explain to me how those values came about (100000, 8000
& 32)

thanks in advance

uyota



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