Configuration Guide (Supporting R05.6.00) Manual

Multi-Service IronWare QoS and Traffic Management Configuration Guide 79
53-1003037-02
Default QoS mappings
4
NOTE
If the port-priority command was not configured in the pre-converted configuration, the qos dscp
encode-policy USER_DSCP_MAP command will not be added to the converted file and you will have
to configure the qos dscp encode-policy command to bind “USER_DSCP_MAP” either globally or to
a specified port.
Default QoS mappings
If a user defined map is not created or applied to Ingress or Egress traffic, the Brocade device uses
a default map to assign PCP, DSCP and EXP priority and drop precedence values. The following
tables describe the default QoS mapping values:
• PCP Encode Table
• PCP Decode Table
• DSCP Encode Table
• DSCP Decode Table
• EXP Encode Table
• EXP Decode Table
Table 18 lists the default PCP Encode mappings.
NOTE
The encode commands for QOS mapping such as qos pcp encode on | off, qos dscp encode on| off
and qos exp encode on | off are available only at the physical port level. There are no direct
commands at global level to enable or disable QOS encode mapping.
qos-mapping
dscp decode-map USER_DSCP_MAP
dscp-value 32 to priority 0
dscp-value 0 to priority 1
dscp-value 2 3 to priority 1
dscp-value 4 to priority 1
dscp-value 24 to priority 2
dscp-value 48 to priority 3
dscp-value 16 to priority 4
dscp-value 8 to priority 5
dscp-value 56 to priority 6
dscp-value 40 to priority 7
qos dscp decode-policy USER_DSCP_MAP
TABLE 18 PCP encode table
Priority &
Drop Eligibility
(DE)
7 7DE 6 6DE 5 5DE 4 4DE 3 3DE 2 2DE 1 1DE 0 0DE