Enterasys X-Pedition XSR CLI Spezifikationen Seite 488

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 684
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 487
Policy-Map Commands
12-92 Configuring Quality of Service
XSR(config)#policy-map policy75
XSR(config-pmap<policy75>)#class acl203
XSR(config-pmap-c<acl203>)#bandwidth percent 35
XSR(config-pmap-c<acl203>)#queue-limit 50
random-detect (RED)
ThiscommandconfiguresREDforapolicymap.
ThiscommandconfiguresandenablesRandomEarlyDetect(RED)fortheclass.REDisa
congestionavoidancemechanismthatslowstrafficbyrandomlydroppingpackets during
congestionandisusefulwithprotocolslikeTCPthatrespondtodroppedpacketsbyreducingthe
transmission
rate.WhileREDmaybeimplementedusingWRED,thiscommandisretainedfor
compatibilitywithearlierreleasesandsimplicityofconfigurationwhenonlyREDisrequired.
Syntax
random-detect min-thres max-thres [mark-prob]
Syntax of the “no” Form
ThenoformofthiscommanddisableREDonaninterface:
no random-detect
Mode
PolicyMapClassconfiguration:XSR(config-pmap-c-<xx>)#
Defaults
Disabled
•Markprob:10
Example
ThefollowingexampleenablesRED.Theminimumandmaximumthresholdsare24and40,
respectively.Thedroppingprobabilityis1/4.
XSR(config)#policy-map foobar
XSR(config-pmap<foobar>)#class alpha
XSR(config-pmap-c<alpha>)#random-detect 24 40 4
min-thres
Peaklimitofaveragepacketqueuelength,rangingfrom1to4096,beyond
whichtheXSRrandomlydropspackets.
max-thres
Peaklimitofaveragepacketqueuelength,rangingfrom1to4096,beyond
whichallpacketsaredropped.
mark-prob
Markprobabilitydenominator,rangingfrom1to65,536.Thisistheliklihood
ofqueuedpacketsbeingdroppedwhentheirnumberexceedingthe
minimumthresholdisbetween0and(1/markprob).Whenthepeakthreshold
isreached,dropprobabilityis1dividedbythepeakprobability.
Seitenansicht 487
1 2 ... 483 484 485 486 487 488 489 490 491 492 493 ... 683 684

Kommentare zu diesen Handbüchern

Keine Kommentare