Sample Configuration To Mark Non-Ecn Packets As "Yellow" With Single Traffic Class - Dell S6100 Configuration Manual

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Classification based on DSCP only

Classification based on ECN only

Classification based on ECN and DSCP concurrently

You can now use the set-color yellow keyword with the match ip access-group command to mark the color of the traffic as 'yellow' would

be added in the 'match ip' sequence of the class-map configuration.

By default, all packets are considered as 'green' (without the rate-policer and trust-diffserve configuration) and hence support would be

provided to mark the packets as 'yellow' alone will be provided.

By default Dell Networking OS drops all the 'RED' or 'violate' packets.

The following combination of marking actions to be specified match sequence of the class-map command:

set a new DSCP for the packet

set the packet color as 'yellow'

set the packet color as 'yellow' and set a new DSCP for the packet

This marking action to set the color of the packet is allowed only on the 'match-any' logical operator of the class-map.

This marking-action can be configured for all of the below L3 match sequence types:

match ip access-group

match ip dscp

match ip precedence

match ip vlan

Sample configuration to mark non-ecn packets as "yellow"

with single traffic class

Consider the use case where the packet with DSCP value "40" need to be enqueued in queue#2 and packets with DSCP value as 50 need

to be enqueued in queue#3. And all the packets with ecn value as '0' must be marked as 'yellow'.

The above requirement can be achieved using either of the two approaches.

Approach without explicit ECN match qualifiers for ECN packets:

ip access-list standard dscp_50

seq 5 permit any dscp 50

ip access-list standard dscp_40

seq 5 permit any dscp 40

ip access-list standard dscp_50_non_ecn

seq 5 permit any dscp 50 ecn 0

ip access-list standard dscp_40_non_ecn

seq 5 permit any dscp 40 ecn 0

class-map match-any class_dscp_40

match ip access-group dscp_40_non_ecn set-color yellow

match ip access-group dscp_40

class-map match-any class_dscp_50

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