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set cos settings
9-20 Policy Classification Configuration
set cos settings
UsethiscommandtoconfigureaClassofServiceentryintheCoSsettingstable.
Syntax
set cos settings cos-index priority priority [ tos-value tos-value] [irl-reference
irl-reference]
Parameters
Defaults
Ifnooptionalparametersarespecified,nonewillbeapplied.
Mode
Switchcommand,readwrite.
Usage
TheCoSsettingstabletakesindividualclassofservicefeaturesanddisplaysthemasbelongingto
aCoSentry. Essentially,itisusedforCoSfeatureassignment.Eachclassofserviceentryconsists
ofanindex,802.1ppriority,anoptionalToSvalue,andanIRLreference.
•CoSIndex
Indexesareuniqueidentifiers
foreachCoSsetting.CoSindexes0through7arecreatedby
defaultandmappeddirectlyto802.1ppriorityforbackwardscompatibility.Theseentries
cannotberemoved,and802.1ppriorityvaluescannotbechanged.WhenCoSisenabled,
indexesareassigned.Upto256CoSindexesorentriescanbe
configured.
•Priority
802.1pprioritycanbeappliedperCoSindex.ForeachnewCoSindexcreated,theuserhasthe
optiontoassignan802.1ppriorityvalue0to7fortheclassofservice.CoSindexes0through7
mapdirectlyto802.1pprioritiesandcannotbechangedastheyexist
forbackward
compatibility.
•ToS
Thisvaluecan besetperclassofservice,butisnotrequired.Whenaframeisassignedtoa
classofserviceforwhichthisvalueisconfigured,theToSfieldoftheincomingIPpacketwill
beoverwrittentotheuserdefinedvalue.Allbut
thelasttwobitsoftheToSfieldare
rewritable.ToScanbesetforCoSindexes0through7.
•IRLReference
TheCoSIRLreferencefieldisoptional,asratelimitsarenotrequired.TheIRLreferencedoes
notassignaninboundratelimitbutpointstotheCoSIRLReference
MappingTable.This
referencemaybethoughtofasthevirtualratelimiterthatwillassignthephysicalratelimiter
definedbytheIRLReferenceMappingTable,describedinsetcosreferenceonpage 927.
cosindex SpecifiesaClassofServiceentry.Validvaluesare0to255.
priority
priority Specifiesan802.1dpriorityvalue.Validvaluesare0to7,with0beingthe
lowestpriority.SeeUsagesectionbelowformoreinformation.
tosvaluetosvalue (Optional)SpecifiesaTypeofServicevalue.
irlreference
irlreference
(Optional)Settheinboundratelimiterassociatedwiththisentry.Valid
values
are0to99.SeeUsagesectionbelowformoreinformation.
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