Hi Prem,

an example of the config is:

class-map match-all VoiceControl

match ip dscp cs5

class-map match-all VoiceTraffic

match ip dscp ef

rgds,

Mahendra

EF is Expedited Forwarding which is the best/highest level which can be applied to a traffic class in DSCP.

http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a00800949f2.shtml

Hi Mahendra

In addition to Mark's comments we use different parameters to mark & classify the traffic.

In the config which you have posted basically classifies the traffic with dscp value marked as EF - Expediate Forwarding.

This is very much equivalent to IP Precedence value 5.

We mostly use either ip precedence or dscp values to mark the voice traffic.

When compared to IP Precedence in DSCP you have more bits rather more options so that we can give required priority or guarantee to different traffic patterns.

regds

Hello Prem & mark,

That helps. Thanks heaps.

rgds,

Mahendra