Alcatel-Lucent 7950 Quality Of Service Manual page 268

Extensible routing system
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Service Egress QoS Policy Forwarding Class Commands
dscp
Syntax
dscp {dscp-name | in-profile dscp-name out-profile dscp-name}
no dscp
Context
config>qos>sap-egress>fc
Description
This command configures a DiffServ Code Point (DSCP) code point to be used for remarking packets from
the specified FC. If the optional in/out-profile is specified, the command will remark different DSCP code
points depending on whether the packet was classified to be in or out-of-profile ingress to the node.
Default
not enabled
Parameters
dscp-name — Specifies a dscp name that has been previously mapped to a value using the dscp-name
command. The DiffServ code point can only be specified by its name.
Values
prec
Syntax
prec ip-prec-value [fc fc-name] [hsmda-counter-override counter-id] [profile {in | out}]
no prec ip-prec-value
Context
config>qos>sap-egress>fc
Description
This command defines a value to be used for remarking packets for the specified FC. If the optional in/out-
profile is specified, the command will remark different PREC values depending on whether the packet was
classified to be in or out-of-profile ingress to the node.
The hsmda-counter-override keyword is optional. When specified and the egress SAP is created on an
HSMDA, the egress classification rule will override the default queue accounting function for the packet.
By default, the HSMDA uses each queues default queue counters for packets mapped to the queue. The
hsmda-counter-override keyword is used to map the packet to an explicit exception counter. One of eight
counters may be used. When the packet is mapped to an exception counter, the packet will not increment the
queues discard or forwarding counters, instead the exception discard and forwarding counters will be used.
The dscp based counter override decision may be overwritten by an ip-criteria reclassification rule match if
the higher priority classification rule has an hsmda-counter-override action defined.
not enabled
Parameters
ip-prec-value — The ip-prec-value is a required parameter that specifies the unique IP header ToS byte
precedence bits value that will match the IP precedence rule. If the command is executed more than
once with the same ip-prec-value, the previous forwarding class and enqueuing priority is completely
overridden by the new parameters or defined to be inherited when a forwarding class or enqueuing
priority parameter is missing.
A maximum of eight IP precedence rules are allowed on a single policy.
Page 268
be, cp1, cp2, cp3, cp4, cp5, cp6, cp7, cs1, cp9, af11, cp11, af12, cp13, af13, cp15, cs2,
cp17, af21, cp19, af22, cp21, af23, cp23, cs3, cp25, af31, cp27, af32, cp29, af33, cp31,
cs4, cp33, af41, c p35, af42, cp37, af43, cp39, cs5, cp41, cp42, cp43, cp44, cp45, ef, cp47,
nc1, cp49, cp50, cp51, cp52, cp53, cp54, cp55, nc2, cp57, cp58, cp59, cp60, cp61, cp62,
cp63
7950 XRS Quality of Service Guide

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