RE: IP Precedence Vs DSCP

From: Edwards, Andrew M (andrew.m.edwards@boeing.com)
Date: Wed May 19 2004 - 11:38:39 GMT-3


I'm confused.... Why wouldn't you set the DSCP value to CS5?

My understanding is CS = legacy IP Prec.

CS7 is IP Prec 7. CS5 is Ip Prec 5... And the DSCP for CS5 42-49.

So why not just set to CS5?

andy

-----Original Message-----
From: Kenneth Wygand [mailto:KWygand@customonline.com]
Sent: Wednesday, May 19, 2004 5:11 AM
To: Ahmed Mustafa; ccielab@groupstudy.com
Subject: RE: IP Precedence Vs DSCP

Ahmed,
 
They are both perfect answers given your requirements. Any DSCP value
between 40-47 are considered IP Precedence 5 when using IP Precedence
classification. If this were the actual exam, I would ask the proctor
if I was to set any value for the drop-bits in the DSCP value. Or
another way of asking it is if they entire TOS byte must be identical
when using DSCP as when using IP Precedence 5. The answers to these
questions will indicate which one will satisfy the given requirements.
 
HTH,
Ken

        -----Original Message-----
        From: nobody@groupstudy.com on behalf of Ahmed Mustafa
        Sent: Wed 5/19/2004 1:32 AM
        To: ccielab@groupstudy.com
        Cc:
        Subject: IP Precedence Vs DSCP
        
        

        If the task states use the DSCP value equivalent to IP
Precedence 5.
        
        
        per DQOS book,
        
        
        IP precedence values
        
        000 0
        001 CS1
        010 CS2
        011 CS3
        100 CS4
        101 CS5
        110 CS6
        111 CS7
        
        So would I chose CS7 or EF?
        
        Regards,
        
        



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