D-Link DXS-3600 Series Cli Reference Manual page 1098

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
When the interface is set to trust DSCP, the DSCP of the arriving packet will be trusted for the
subsequent QoS operations. First, the DSCP will be mapped to an internal CoS value, which will be
subsequently used to determine the CoS queue. The DSCP to CoS map is configured by the mls qos
map dscp-cos command. The CoS to queue map is configured by the priority-queue cos-map
command. If the arriving packet is a non-IP packet, the CoS is trusted. The resulting CoS mapped from
DSCP will also be the CoS in the transmitted packet.
When an interface is in the trust CoS state, the CoS of the arriving packet will be applied to the packet as
the internal CoS and used to determine the CoS queue. The CoS queue is determined based on the CoS
to Queue mapping table.
When a packet arrives at an 802.1Q VLAN tunnel port, the packet will be added with an outer VLAN tag
in order to transmit through the VLAN tunnel. If the port is to trust CoS, then the inner tag CoS will be the
internal CoS of the packet and the CoS value in the packet's outer VLAN tag. If the MLS QoS CoS
override is configured, then the CoS specified by command mls qos cos will be the internal CoS of the
packet and the CoS value in the packet's outer VLAN tag. If the port is to trust DSCP, then the CoS
mapped from the DSCP code point will be the internal CoS of the packet and the CoS value in the
packet's outer VLAN tag
When a packet is received by a port, it will be initialized to a color based on the mls qos map dscp-color
command if the receiving port is to trust DSCP or MLS QoS mapped CoS color if the receiving port is to
trust CoS.
Example
This example shows how to configure port Ethernet 1/0/1 to trust the DSCP mode.
Switch# configure terminal
Switch(config)# interface ethernet 1/0/1
Switch(config-if)# mls qos trust dscp
Switch(config-if)#
87-13 police
This command is used to configure traffic policing to use the single rate. To remove traffic policing, use
the no form of this command.
police KBPS [BURST-NORMAL [BURST-MAX]] [conform-action ACTION] exceed-action ACTION
[violate-action ACTION] [color-aware]
no police
Parameters
KBPS
BURST-NORMAL
BURST-MAX
confirm-action
exceed-action
violate-action
Specifies the average rate, in kilobits per second.
(Optional) Specifies the normal burst size in kilobytes.
(Optional) Specifies the maximum burst size, in kilobytes.
(optional) Specifies the action to take on green color packets. If the
action is not specified, the default action is to transmit.
Specifies the action to take on yellow color packets that exceed the
rate limit.
(Optional) Specifies the action to take on red color packets. When
violate-action is not specified, the policer is a single rate two color
policer. When violate-action is specified, the policer is a single rate
three color policer.
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