ECS4660-28F_Management Guide-R03

C HAPTER 41 | Class of Service Commands
Priority Commands (Layer 3 and 4)
– 1399 –
DEFAULT SETTING
COMMAND MODE
Interface Configuration (Port)
COMMAND USAGE
◆ Enter up to eight paired values for per-hop behavior and drop
precedence separated by spaces. These values are used for internal
priority processing, and correspond to IP Precedence values 0 - 7.
◆ If the QoS mapping mode is set the IP Precedence and the ingress
packet type is IPv4, then the IP Precedence-to-DSCP mapping table is
used to generate priority and drop precedence values for internal
processing.
EXAMPLE
Console(config)#interface ethernet 1/5
Console(config-if)#qos map ip-prec-dscp 7 0 6 0 5 0 4 0 3 0 2 1 1 1 0 1
Console(config-if)#
qos map phb-queue This command determines the hardware output queues to use based on
the internal per-hop behavior value. Use the no form to restore the default
settings.
SYNTAX
qos map phb-queue queue-id from phb0 ... phb7
no map phb-queue phb0 ... phb7
phb - Per-hop behavior, or the priority used for this router hop.
(Range: 0-7)
queue-id - The ID of the priority queue. (Range: 0-7, where 7 is the
highest priority queue)
DEFAULT SETTING.
COMMAND MODE
Interface Configuration (Port)
Table 179: Default Mapping of IP Precedence to Internal PHB/Drop Values
IP Precedence Value 0 1 2 3 4 5 6 7
Per-hop Behavior 0 1 2 3 4 5 6 7
Drop Precedence 0 0 0 0 0 0 0 0
Table 180: Mapping Internal Per-hop Behavior to Hardware Queues
Per-hop Behavior 0 1 2 3 4 5 6 7
Hardware Queues 2 0 1 3 4 5 6 7