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
IndexesareuniqueidentifiersforeachCoSsetting.CoSindexes0through7arecreatedby
defaultandmappeddirectlyto802.1ppriorityforbackwardscompatibility.Theseentries
cannotberemoved,and802.1ppriorityvaluescannotbechanged.WhenCoSisenabled,
indexesareassigned.Upto256CoSindexesorentriescanbeconfigured.
•Priority
802.1pprioritycanbeappliedperCoSindex.ForeachnewCoSindexcreated,theuserhasthe
optiontoassignan802.1ppriorityvalue0to7fortheclassofservice.CoSindexes0through7
mapdirectlyto802.1pprioritiesandcannotbechangedastheyexistforbackward
compatibility.
•ToS
Thisvaluecanbesetperclassofservice,butisnotrequired.Whenaframeisassignedtoa
classofserviceforwhichthisvalueisconfigured,theToS fieldoftheincomingIPpacketwill
beoverwrittentotheuserdefinedvalue.AllbutthelasttwobitsoftheToSfieldare
rewritable.ToScanbesetforCoSindexes0through7.
•IRLReference
TheCoSIRLreferencefieldisoptional,asratelimitsarenotrequired.TheIRLreferencedoes
notassignaninboundratelimitbutpointstotheCoSIRLReferenceMappingTabl e.This
referencemaybethoughtofasthevirtualratelimiterthatwillassignthephysicalratelimiter
definedbytheIRLReferenceMappingTabl e,describedinsetcosreferenceonpage 927.
cosindex SpecifiesaClassofServiceentry.Valid valuesare0to255.
prioritypriority Specifiesan802.1dpriorityvalue.Val idva luesare0to7,with0beingthe
lowestpriority.SeeUsagesectionbelowformoreinformation.
tosvaluetosvalue (Optional)SpecifiesaTypeofServiceval ue.
irlreference
irlreference
(Optional)Settheinboundratelimiterassociatedwiththisentry.Valid
valuesare0to99.SeeUsagesectionbelowformoreinformation.