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dscp and diffserv

carl_townshend
Spotlight
Spotlight

Hi all, are these the same thing or different ? I was told they are the same.

2 Replies 2

srue
Level 7
Level 7

one way that diffserv is implemented is using dscp. there are other ways though - CoS, ToS, and Precedence.

Diffserv is a QoS technique which is configured on a per hop basis.

DSCP on the other hand is a 6 bit field used for classifying traffic and prioritising them. First three bits are the class selector bits and the next 3 bits are the drop precednce bits.

http://www.cisco.com/warp/public/105/dscpvalues.html

http://en.wikipedia.org/wiki/Differentiated_services

HTH, rate if it does

Narayan

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