DES-3000 Series Layer 2 Switch CLI Reference Manual
config cos mapping
Purpose Used to configure class of service parameters and mapping for port-based cost of service and
mapping for Type of Service (ToS).
Syntax
config cos mapping [<portlist>|all] [none |{port_mapping | ethernet [ 802.1p |
mac_mapping | ip [ tos | dscp] ] } ]
Description Class of Service is configured to map different QoS priority protocols to the Switch’s 4 internal
priority queues. CoS mapping can be used to accommodate packets using ToS priority or
DSCP priority in their headers. CoS can also be based on destination MAC address. Port-
based CoS can be enabled on any port and mapped to one of two priority queues.
Parameters mapping - Specifies CoS mapping based on port (port <portlist> or all). Port based CoS may
be further configured as follows:
• none – Specifies port-based CoS mapping without additional specification.
• port_mapping - Enables CoS mapping for the specified ports
• ethernet – Specifies port-based CoS mapping on selected ports to be 802.1p priority
mapping or MAC address based mapping mac_mapping.
• mac_mapping – Specifiies CoS mapping based on destination MAC address
(destination_addr <macaddr>). There are four priority levels available for mapping as
defined by the class (class <class_id 0-3>).
• ip - Specifies port-based CoS mapping on selected ports to be tos or dscp mapping.
• tos – Specifies CoS mapping for Type of Service (ToS) priority. Select the ToS
value (value <value 0 - 7>) and the class (class <class_id 0-3>)
Restrictions Only administrator-level users can issue this command.
To configure CoS to enable port-based CoS mapping:
DES-3026:4#config cos mapping port all port_mapping
Command: config cos mapping port all port_mapping
Success
DES-3026:4#
97
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