ccie ck题库钻石终结版

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1、63,77,87,92,111,128,MSDP133,144,152,168，171,172,177,200,207,216，221,237,254,258—263,,267，269，286，303，331,366Police后面直接加数值和CIR加数值的区别MSDP和ANYCASTWRR和SRRWFQ和CBWFQ1、WhatisBGPsynchronization?A:Theruleofsynchronizationstatesthefollowing:Beforearoutelearned

2、fromanIBGPneighborisenteredintotheIProutingtableorisadvertisedtoaBGPpeer,theroutemustfirstbeknownviaIGP.2、whichBGPattributeswillinfluenceinboundflow?A:MED、AS-PATH，ORIGIN3、BGPAdministrativedistanceA：BGPhasadistancebgpcommandthatallowsyoutosetdifferent

3、administrativedistancesforthreeroutetypes:external,internal,andlocal.Externalroute20Internalroute200Localroute2004、WhichpictureisTrafficShape,why?A:Policingtypicallydropsexcesstraffic.Shapingsmoothtraffictoaspecificrateusingabuffer.5、Unequalcostload-

4、sharingA:RouterEwillselectbothBandCasnexthoptoreachnetworkZ.Unequalcostloadsharinghappening.Thevariancecommandisusedtodeterminewhichroutesarefeasibleforunequal-costloadsharing.Variancedefinesamultiplierbywhichametricmaydiffer,orvary,fromthemetricofth

5、elowest-costroute.Anyroutewhosemetricexceedsthemetricofthelowest-costroute,multipliedbythevariance,willnotbeconsideredafeasibleroute.Thedefaultvarianceisone,meaningthatthemetricsofmultipleroutesmustbeequal,toloadbalance.Variancemustbespecifiedinwhole

6、numbers.Thefollowingthreeconditionsmustbemetforaroutetobeincludedinunequal-costloadsharing:·Themaximum-pathslimitmustnotbeexceededasaresultofaddingtheroutetoaload-sharinggroup.·Thenext-hoproutermustbemetricallyclosertothedestination.Thatis,itsmetricf

7、ortheroutemustbesmallerthanthelocalrouter'smetric.Anext-hoprouter,beingclosertothedestination,isoftenreferredtoasthedownstreamrouter.(加入负载均衡的下一跳的路由器必须要满足FC，即AD

8、ultipliedbythevariance,mustbegreaterthanthemetricoftheroutetobeadded.EIGRP基本概念：（1）adjacency：Anadjacencyisalogicalassociationbetweentwoneighborsoverwhichrouteinformationisexchanged.Whenadjacencieshavebeenestablished,therouterwillreceiveupdatesfromitsn