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MLS QOS on METRO

Was going thro one of the document on METRO QOS and came across 2 commands "mls qos trust cos pass-through dscp" and second one is "no mls qos rewrite ip dscp ".Can any please elaborate these commands and share difference between them.

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Silver

Re: MLS QOS on METRO

1.mls qos trust cos pass-through dscp -- To configure the multilayer switching (MLS) port trust state and to classify traffic by examining the class of service (CoS) or differentiated services code point (DSCP) value.

2.no mls qos rewrite ip dscp-- To enable type of service (ToS)-to-differentiated services code point (DSCP) rewrite, use the mls qos rewrite ip dscp command in global configuration mode. To disable ToS-to-DSCP rewrite, use the no form of this command

For more info about commands.

http://www.cisco.com/en/US/docs/ios/qos/command/reference/qos_m2.html#wp1014971

Silver

Re: MLS QOS on METRO

Also beware of the hardware as many types of hardware have different QoS implementation.

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