Wireshark-users: Re: [Wireshark-users] Differentiated Services Codepoint: AssuredForwarding 22 (0
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From: "Greg Helps" <greg@xxxxxxxxxxxx>
Date: Wed, 31 Oct 2007 08:39:39 +1030
Hi,

>From a nearby cisco router for reference:

   af11     Match packets with AF11 dscp (001010) 
   af12     Match packets with AF12 dscp (001100) 
   af13     Match packets with AF13 dscp (001110) 
   af21     Match packets with AF21 dscp (010010) 
   af22     Match packets with AF22 dscp (010100) 
   af23     Match packets with AF23 dscp (010110) 
   af31     Match packets with AF31 dscp (011010) 
   af32     Match packets with AF32 dscp (011100) 
   af33     Match packets with AF33 dscp (011110) 
   af41     Match packets with AF41 dscp (100010) 
   af42     Match packets with AF42 dscp (100100) 
   af43     Match packets with AF43 dscp (100110) 
   cs1      Match packets with CS1(precedence 1) dscp (001000) 
   cs2      Match packets with CS2(precedence 2) dscp (010000) 
   cs3      Match packets with CS3(precedence 3) dscp (011000) 
   cs4      Match packets with CS4(precedence 4) dscp (100000) 
   cs5      Match packets with CS5(precedence 5) dscp (101000) 
   cs6      Match packets with CS6(precedence 6) dscp (110000) 
   cs7      Match packets with CS7(precedence 7) dscp (111000) 
   default  Match packets with default dscp (000000) 
   ef       Match packets with EF dscp (101110) 

Cheers
Greg

-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Martin
Andersson
Sent: Wednesday, 31 October 2007 8:15 AM
To: Community support list for Wireshark
Subject: [Wireshark-users] Differentiated Services Codepoint:
AssuredForwarding 22 (0x14)

Hello

 From a packet.

Internet Protocol, Src: 10.3.35.141 (10.3.35.141), Dst: 10.2.35.2
(10.2.35.2)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x50 (DSCP 0x14: Assured Forwarding
22; ECN: 0x00)
       0101 00.. = Differentiated Services Codepoint: Assured Forwarding
22 (0x14)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0


The DSCP = 0x14
How does this map to the " Assured Forwarding 22"
Is there some specification that says that DSCP = 20 --> Assured
Forwarding 22

rg/Martin
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