ZTE ZXR10 5900E Series Configuration manual

ZXR105900ESeries

Easy-MaintenanceMPLSRoutingSwitch

CongurationGuide(Multicast)

Version:3.00.11

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URL:http://support.zte.com.cn

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RevisionHistory

RevisionNo.RevisionDateRevisionReason

R1.02015–01–15Firstedition

SerialNumber:SJ-20150114102049-007

PublishingDate:2015-01-15(R1.0)

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Contents

AboutThisManual.........................................................................................I

Chapter1MulticastPrinciple....................................................................1-1

1.1MulticastingOverview.........................................................................................1-1

1.2ConguringPublicIPMulticast............................................................................1-3

Chapter2IGMPConguration..................................................................2-1

2.1IGMPOverview..................................................................................................2-1

2.2ConguringIGMP...............................................................................................2-2

2.3MaintainingIGMP...............................................................................................2-6

2.4IGMPCongurationExamples............................................................................

2-8

2.4.1IGMPQuerierElection..............................................................................2-8

2.4.2JoiningofIGMPDynamicGroupandStaticGroup...................................2-10

2.4.3IGMPFastLeavingFromAllGroups.......................................................

2-12

2.4.4IGMPFastLeavingFromaSpeciedGroup............................................

2-13

Chapter3IGMPSnoopingConguration.................................................

3-1

3.1IGMPSnoopingOverview...................................................................................3-1

3.2ConguringIGMPSnooping................................................................................3-1

3.3MaintainingIGMPSnooping................................................................................3-7

3.4IGMPSnoopingCongurationExample.............................................................3-10

Chapter4PIM-SMConguration..............................................................

4-1

4.1PIM-SMOverview..............................................................................................4-1

4.2ConguringPIM-SM...........................................................................................4-3

4.3MaintainingPIM-SM...........................................................................................4-7

4.4PIM-SMCongurationExamples.......................................................................4-14

4.4.1ForwardingMulticastFlowthroughPIM-SM(DynamicRP)........................4-14

4.4.2ForwardingMulticastFlowthroughPIM-SM(StaticRP)............................4-17

4.4.3IllegalMulticastSourceControl...............................................................

4-18

Chapter5PIM-SSMConguration............................................................5-1

5.1PIM-SSMOverview............................................................................................5-1

5.2ConguringPIM-SSM.........................................................................................5-1

5.3PIM-SSMCongurationExample........................................................................5-2

Chapter6PIM-DMConguration..............................................................6-1

6.1PIM-DMOverview..............................................................................................6-1

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6.2ConguringPIM-DM...........................................................................................6-1

6.3MaintainingPIM-DM...........................................................................................6-2

6.4PIM-DMCongurationExample..........................................................................6-4

Chapter7PIMSnoopingConguration...................................................7-1

7.1PIMSnoopingOverview.....................................................................................7-1

7.2ConguringPIMSnooping..................................................................................7-1

7.3MaintainingPIMSnooping..................................................................................7-2

7.4PIMSnoopingCongurationExample..................................................................7-5

Chapter8PIMv6SnoopingConguration...............................................8-1

8.1PIMv6SnoopingOverview..................................................................................8-1

8.2ConguringPIMv6Snooping...............................................................................8-1

8.3MaintainingPIMv6Snooping...............................................................................

8-2

8.4PIMv6SnoopingCongurationExample..............................................................8-5

Chapter9MLDSnoopingConguration..................................................

9-1

9.1MLDSnoopingOverview....................................................................................

9-1

9.2ConguringMLDSnooping.................................................................................9-1

9.3MaintainingMLDSnooping.................................................................................9-4

9.4MLDSnoopingCongurationExample...............................................................9-11

Chapter10MSDPConguration.............................................................10-1

10.1MSDPOverview.............................................................................................

10-1

10.2ConguringMSDP..........................................................................................

10-2

10.3MaintainingMSDP..........................................................................................

10-5

10.4MSDPCongurationExample.........................................................................10-8

Chapter11StaticMulticastConguration.............................................11-1

11.1StaticMulticastOverview.................................................................................11-1

11.2ConguringStaticMulticast..............................................................................11-2

11.3StaticMulticastMaintenance............................................................................

11-3

11.4StaticMulticastCongurationExample.............................................................

11-4

Figures.............................................................................................................I

Glossary........................................................................................................III

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AboutThisManual

Purpose

ThismanualistheZXR105900ESeries(V3.00.11)Easy-MaintenanceMPLSRouting

SwitchCongurationGuide(Multicast),whichisapplicabletotheZXR105900E(V3.00.11)

seriesswitches.

IntendedAudience

Thismanualisintendedfor:

lNetworkplanningengineer

lDebuggingengineer

lAttendant

WhatIsinThisManual

Thismanualcontainsthefollowingchapters:

Chapter1,Multicast

Principle

DescribesMulticastprinciple,congurationcommandsontheZXR10

5900E.

Chapter2,IGMP

Conguration

DescribesIGMPtechnologyandprinciple,congurationcommands,

maintenancecommands,andcongurationexamplesontheZXR10

5900E.

Chapter3,IGMPSnooping

Conguration

DescribesIGMPSnoopingtechnologyandprinciple,conguration

commands,maintenancecommands,andcongurationexampleson

theZXR105900E.

Chapter4,PIM-SM

Conguration

DescribesPIM-SMtechnologyandprinciple,congurationcommands,

maintenancecommands,andcongurationexamplesontheZXR10

5900E.

Chapter5,PIM-SSM

Conguration

DescribesPIM-SSMtechnologyandprinciple,congurationcommands,

maintenancecommands,andcongurationexamplesontheZXR10

5900E.

Chapter6,PIM-DM

Conguration

DescribesPIM-DMtechnologyandprinciple,congurationcommands,

maintenancecommands,andcongurationexamplesontheZXR10

5900E.

Chapter7,PIMSnooping

Conguration

DescribesPIMSnoopingtechnologyandprinciple,conguration

commands,maintenancecommands,andcongurationexampleson

theZXR105900E.

Chapter8,PIMv6

SnoopingConguration

DescribesPIMv6Snoopingtechnologyandprinciple,conguration

commands,maintenancecommands,andcongurationexampleson

theZXR105900E.

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Chapter9,MLDSnooping

Conguration

DescribesMLDtechnologyandprinciple,congurationcommands,

maintenancecommands,andcongurationexamplesontheZXR10

5900E.

Chapter10,MSDP

Conguration

DescribesMSDPtechnologyandprinciple,congurationcommands,

maintenancecommands,andcongurationexamplesontheZXR10

5900E.

Chapter11,StaticMulticast

Conguration

DescribesStaticMulticasttechnologyandprinciple,conguration

commands,maintenancecommands,andcongurationexampleson

theZXR105900E.

Conventions

Thismanualusesthefollowingtypographicalconventions:

ItalicsVariablesincommands.Itmayalsorefertootherrelatedmanualsanddocuments.

BoldMenus,menuoptions,functionnames,inputelds,optionbuttonnames,checkboxes,

drop-downlists,dialogboxnames,windownames,parameters,andcommands.

Constant

width

Textthatyoutype,programcodes,lenames,directorynames,andfunctionnames.

[]Optionalparameters.

{}Mandatoryparameters.

|Separatesindividualparameterinseriesofparameters.

Note:providesadditionalinformationaboutacertaintopic.

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Chapter1

MulticastPrinciple

TableofContents

MulticastingOverview................................................................................................1-1

ConguringPublicIPMulticast...................................................................................1-3

1.1MulticastingOverview

IPmulticastisapoint-to-multipointormultipoint-to-multipointcommunicationmode.

Multiplereceiversreceivethesameinformationfromthesamesource.Applicationsbased

onmulticastincludevideoconferences,distanceeducation,andsoftwaredistribution.

Multicastprotocolsincludethemembermanagementprotocolandthemulticastrouting

protocol.Themembermanagementprotocolisusedtomanagethejoiningandleaving

ofmulticastmembers.Themulticastroutingprotocolisusedtoconstructamulticasttree

throughexchanginginformationamongswitches.

MulticastAddress

InanIPmulticastnetwork,thesendersendsapackettomultiplereceiversinthemulticast

mode.Thesenderiscalledthemulticastsource.Multiplereceiversofthesamepacket

areidentiedbythesameIDthatiscalledthemulticastgroupaddress.

IntheIPaddressallocationscheme,IPaddressesofClassD(224.0.0.0–239.255.255.255)

aretheIPmulticastaddresses.Addresses224.0.0.0–224.0.0.255andaddresses

239.0.0.0–239.255.255.255areusedforresearchandmanagement.

MulticastTree

InaTransferControlProtocol/InternetProtocol(TCP/IP)network,toenablemulticast

communication,themulticastsource,receiversandthepathsofmulticastpacketsmust

beavailable.Themostwidelyusedroutingmethodisestablishingtreeroutes.Tree

routeshavethefollowingtwoadvantages:

1.Packetsaresenttodifferentreceiversalongthetreebranchesinparallel.

2.Packetsarecopiedonlyoncrotches,whichminimizesthenumberofpackets

transmittedonthenetwork.

Amulticasttreeisasetthatconsistsofaseriesofingressinterfacesandegressinterfaces

onswitches.Itdeterminesauniqueforwardingpathbetweenthesubnettowhichthe

multicastsourcebelongsandallthesubnetsthatcontaingroupmembers.

Therearetwotypesofmulticasttrees:sourcetreeandsharedtree.

lSourcetree

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ZXR105900ESeriesCongurationGuide(Multicast)

ThesourcetreeisalsocalledtheShortestPathTree(SPT).Itconstructsaspanning

treetoallreceiversforeachsource.Thisspanningtreeusesthesourceasthe

rootnode.Itreachesthesubnetstowhichthereceiversbelong.Amulticastgroup

maycontainseveralmulticastsources.Eachsourceoreachpairof(S,G)hasa

correspondingmulticasttree.

ThemethodtoconstructasourcetreeiscalledReversePathForwarding(RPF).Each

switchcanndtheshortestpathtothesourceandthecorrespondingegressinterface

accordingtotheunicastroute.Whenaswitchreceivesamulticastpacket,itchecks

whethertheingressinterfacethatthepacketreachesistheegressinterfacetothe

sourcewiththeshortestunicastpath.Ifitis,theswitchforwardsthemulticastpacket

accordingtothemulticastroutes.Otherwise,theswitchdiscardsthemulticastpacket.

lSharedtree

Thesharedtreeconstructsamulticastroutetreeforeachmulticastgroup.Amulticast

groupissharedbyallgroupmembers.Thatis,thetreeissharedbyallgroupmembers

(*,G)insteadofatreesharedbyapairofbroadcastgroupmembers(S,G).Each

memberthatwantstoreceivemulticastpacketsfromthegroupshouldbeaddedto

thesharedtreeexplicitly.

Asharedtreeusesoneoragroupofswitchesasthecenterofthetree.Multicast

packetsfromallsourcesinthisgrouptothereceiversaresenttothecenter.Then

thesepacketsareforwardedinmulticastmodealongthetreefromthecenter.

MulticastRoutingProtocol

TheMulticastroutingprotocolisusedforexchanginginformationamongswitchesto

constructamulticasttree.Differentmulticastroutingprotocolsusedifferentmethods.To

meettherequirementsofmulticastuserlocationsinnetworks,multicastroutingprotocol

isclassiedintotwotypes:densemodeandsparsemode.

lDensemode

Theprerequisiteforamulticastroutingprotocolofdensemodeisthatmulticast

userslocateinthenetworkdenselyandthereissufcientbandwidth.Theprotocol

constructsandmaintainsthemulticasttreebyoodingthemulticastpacketstothe

networkperiodically.Thatis,aswitchrunningmulticastroutingprotocolwilloodthe

packetsitreceivesonallinterfacesexceptthereceivinginterface.

Whenaneighborswitchofaninterfacereportsthatagroupdoesnotexist,the

interfaceisdeletedfromthegroup'smulticasttree.Thisiscalledpruning.Whenthe

neighborswitchofaninterfacereportsthatthereceiverofthisgroupappearsagain,

theinterfaceisaddedtothemulticasttreeofthegroup.Thisiscalledgraft.

Multicastroutingprotocolsofthedensemodeincludethefollowingprotocols:

àDistanceVectorMulticastRoutingProtocol(DVMRP)

àMulticastOpenShortestPathFirst(MOSPF)

àProtocolIndependentMulticast-DenseMode(PIM-DM)

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Chapter1MulticastPrinciple

lSparsemode

Amulticastroutingprotocolofsparsemodeissuitablefornetworkswheremulticast

receiverslocatesparsely.Insuchnetworks,ifthemulticasttreeisconstructedthrough

ooding(thesamewithdensemode),alotofbandwidthwillbewasted.Inthesparse

mode,ifadeviceexpectstoreceivemulticastpackets,itshouldmakeanapplication

tojointhemulticasttreerst.

Multicastroutingprotocolsofthesparsemodeincludethefollowingprotocols:

àCore-BasedTrees(CBT)

àProtocolIndependentMulticast-SparseMode(PIM-SM)

1.2ConguringPublicIPMulticast

TocongurepublicmulticastontheZXR105900E,performthefollowingsteps:

StepCommandFunction

ZXR10(config)#ipmulticast-routingEnablesIPmulticastfunction. 1

ZXR10(config)#noipmulticast-routingDisablesIPmulticastfunction.

2ZXR10(config-mcast)#routerpimEnablesPIM-SM.

3ZXR10(config-mcast-pim)#norouterpimExitsfromPIM-SMmode.

4ZXR10(config-mcast)#multicast-ttl<ttl-limit><interface-

name>

CongurestheTTLlimitfor

multicastforwarding.

5ZXR10(config-mcast)#nomulticast-ttl<interface-name>DisablestheTTLlimitfor

multicastforwarding.

6ZXR10(config-mcast)#multipath[{s-g-hash}{basic|next

-hop-based}]

Setsthemulticastloadsharing

mode.

7ZXR10(config-mcast)#nomultipathDisablesmulticastload

sharing.

8ZXR10#showipmroute[vrf<vrf-name>][group

<group-address>][source<source-address>][summary][iif

<interface-name>][oif<interface-name>]

DisplaystheIPmulticast

routingtable.

9ZXR10#showipmroutenexthop[<destination-address>][vrf

<vrf-name>]

Displaysthenexthopinthe

multicastdirection.

10ZXR10#clearipmroute[vrf<vrf-name>][group-address

<group-address>[source-address<source-address>]]

Clearsmulticastroutes.

11ZXR10#showipmroutesummary[vrf<vrf-name>]Displaysthenumberof

multicastroutesintheIP

multicastroutingtables.

12ZXR10#showipmroutebrief[vrf<vrf-name>]Displaysthebriefinformation

ofanIPmulticastroutingtable.

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ZXR105900ESeriesCongurationGuide(Multicast)

StepCommandFunction

13ZXR10#mtrace<source-address>[<dest-address>][<group-

address>]

Tracesthereversepathofthe

source.

14ZXR10(config-mcast)#damping-enableEnablesthemulticastdamping

function.

15ZXR10(config-mcast)#nodamping-enableDisablesthemulticastdamping

function.

16ZXR10(config-mcast)#damping-threshold<threshold>Conguresthethresholdfor

thenumberoftimesthataroute

isdistributed.Ifthenumberof

timesthatarouteisdistributed

exceedsthethreshold,the

dampingfunctionisenabled.

Theminimumwaittimeto

redistributetherouteis10

seconds,andthemaximum

waittimeis60seconds.

17ZXR10(config-mcast)#nodamping-thresholdRestoresthedefaultdamping

threshold.

18ZXR10(config-mcast)#filter-policymonitor-interface

<interface-name><interface-mode><interface-type>

Conguresagloballtering

interface,andtheglobal

lteringmode(includeor

exclude)andlteringtype(add

ordelete)oftheinterface.One

lteringinterfaceiscongured

once.Amaximumof20

interfacescanbecongured.

Thegloballteringmodesof

theinterfacesmustbethe

same.

19ZXR10(config-mcast)#nofilter-policymonitor-interface

[<interface-name>]

Deletesagloballtering

interface.

20ZXR10(config-mcast)#filter-policymonitor-mroute-inte

rface<source-address><group-address><interface-name><

interface-type>

Conguresalteringinterface

foraroute.Thelteringtypes

(addordelete)oftheegress

interfacesfortherouteare

determinedbythatofthe

globallteringinterface.One

routeandlteringinterfaceis

conguredonce.Amaximum

of22lteringinterfacescanbe

conguredforaroute.

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Chapter1MulticastPrinciple

StepCommandFunction

21ZXR10(config-mcast)#nofilter-policymonitor-mroute-in

terface<source-address><group-address>[<interface-name>]

Deletesalteringinterfacefor

aroute.

22ZXR10(config-mcast)#filter-policymonitor-mroute-mode

<source-address><group-address><route-mode>

Conguresthelteringmode

(includeorexclude)foraroute.

Thelteringmodedetermines

thelteringtypesoftheegress

interfacesfortheroute.Only

onelteringmodecanbe

conguredforaroute.Filtering

modescanbeconguredfora

maximumof1000routes.

23ZXR10(config-mcast)#nofilter-policymonitor-mroute-m

ode<source-address><group-address>

Deletesthelteringmodeofa

route.

24ZXR10(config-mcast)#forwarding-policy

{per-packet|per-user|per-stream}[group-list<acl-name>]

Setsthemulticastforwarding

policytoper-packet,per-user,

orper-stream.Default:

per-stream.

25ZXR10(config-mcast)#noforwarding-policyRestoresthedefaultmulticast

forwardingpolicy.

26ZXR10(config-mcast)#monitor-interface<interface-na

me>

Conguresamonitoring

interface.Onemonitoring

interfaceisconguredonce.

Amaximumof20monitoring

interfacescanbecongured.

27ZXR10(config-mcast)#nomonitor-interface

[<interface-name>]

Deletesamonitoringinterface.

28ZXR10(config-mcast)#monitor-mroute<source-address

><group-address>[interface<interface-name>]

Conguresamulticast

monitoringroute.Ifthe

interfacesetinthiscommand

andthemonitoringinterfaceset

throughthemonitor-interface

commandarethesame,trafc

passingbytheinterfaceis

blocked.

Itisrecommendedthatyou

congurethe[interface

<interface-name>]parameter.

Iftheparameterisnot

congured,thiscommandis

invalid,andmulticasttrafc

isblockednomatterwhether

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ZXR105900ESeriesCongurationGuide(Multicast)

StepCommandFunction

themonitoringinterfaceis

congured.

29ZXR10(config-mcast)#nomonitor-mroute

<source-address><group-address>[interface

<interface-name>]

Deletesamulticastmonitoring

route.

30ZXR10(config-mcast)#mroute-limit<limit>Conguresthelimitnumber

ofitemsinthemulticast

forwardingtable.Default:the

maximumnumbersupported

bythesystem.

31ZXR10(config-mcast)#nomroute-limitRestoresthedefaultlimit

numberofitemsinthe

multicastforwardingtable.

32ZXR10(config-mcast)#mroute-downstrem-limit<limit>Conguresthelimitnumberof

downlinknodesfortheitemsin

themulticastforwardingtable.

33ZXR10(config-mcast)#nomroute-downstrem-limitDeletesthelimitnumberof

downlinknodesfortheitemsin

themulticastforwardingtable.

34ZXR10(config-mcast)#multicast-boundary

<access-list-name><interface-name>

Conguresamulticast

forwardingboundaryon

aninterface.

35ZXR10(config-mcast)#nomulticast-boundary

[<interface-name>]

Deletesamulticastforwarding

boundaryonaninterface.

36ZXR10(config-mcast)#longest-matchCongurestheruleofselecting

aunicastrouteformulticast.

Thelongest-matchrouteis

selectedfromtheMBGP

andMIGPunicastforwarding

tables.

37ZXR10(config-mcast)#nolongest-matchDisablesthelongestmatch

function.

38ZXR10(config-mcast)#nexthop<dest-address><

net-mask><interface-name><nexthop-address>

Conguresastaticmulticast

nexthop,andspeciesthe

destinationaddress,next

hopinterface,andnexthop

address.

39ZXR10(config-mcast)#nonexthop<dest-address><

net-mask>[<interface-name><nexthop-address>]

Deletesastaticmulticastnext

hop.

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Chapter1MulticastPrinciple

StepCommandFunction

40ZXR10(config-mcast)#set-dscp-outer<tos-value>CongurestheTOSpriority

ofmulticastprotocoldata

packets.

41ZXR10(config-mcast)#noset-dscp-outerDeletestheTOSpriority

ofmulticastprotocoldata

packets.

42ZXR10(config-mcast)#reject-inbound-data

<interface-name>

Forbidstheforwardingplane

toreceivemulticastdata

packets,sothatthemulticast

routercannotreceivemulticast

packetsonthespecied

interface.

43ZXR10(config-mcast)#noreject-inbound-data[<interfac

e-name>]

Disablesthefunctionof

forbiddingtheforwarding

planetoreceivemulticastdata

packets.

ForadescriptionoftheparametersinStep4,refertothefollowingtable:

ParameterDescription

<interface-name>Interfacename.

<ttl-limit>TTLlimit.

ForadescriptionoftheparametersinStep6,refertothefollowingtable:

ParameterDescription

s-g-hashSourcegroup-basedhash.

basicDefaultsourcegroup-basedhash.

next-hop-basedNexthop-basedhash.

ForadescriptionoftheparametersinStep8,refertothefollowingtable:

ParameterDescription

<vrf-name>VRFinstancename.

<group-address>Groupaddress,indotteddecimalnotation.

<source-address>Sourceaddress,indotteddecimalnotation.

summarySummaryinformation.

<interface-name>Interfacename.

ForadescriptionoftheparameterinStep9,refertothefollowingtable:

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ZXR105900ESeriesCongurationGuide(Multicast)

ParameterDescription

<destination-address>Destinationaddress.

ForadescriptionoftheparameterinStep16,refertothefollowingtable:

ParameterDescription

<threshold>Dampingthreshold.

ForadescriptionoftheparametersinStep18,refertothefollowingtable:

ParameterDescription

<interface-mode>Interfacelteringmodeorroutelteringmode,globallyunied.

<interface-type>Interfacelteringtype.

ForadescriptionoftheparametersinStep24,refertothefollowingtable:

ParameterDescription

per-packet|per-user|per-streamPer-packet,per-user,orper-stream.

<acl-name>ACLname.

ForadescriptionoftheparameterinStep30,refertothefollowingtable:

ParameterDescription

<limit>Numberofroutes.

ForadescriptionoftheparameterinStep32,refertothefollowingtable:

ParameterDescription

<limit>Numberofdownlinknodes.

ForadescriptionoftheparametersinStep38,refertothefollowingtable:

ParameterDescription

<dest-address>DestinationIPaddress.

<net-mask>Destinationaddressmask.

<interface-name>Egressinterfaceofanexthop.

<nexthop-address>Nexthopaddress.

ForadescriptionoftheparameterinStep40,refertothefollowingtable:

ParameterDescription

<tos-value>TOSpriority,range:1–63,default:48.

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Chapter2

IGMPConguration

TableofContents

IGMPOverview..........................................................................................................2-1

ConguringIGMP.......................................................................................................2-2

MaintainingIGMP.......................................................................................................2-6

IGMPCongurationExamples...................................................................................

2-8

2.1IGMPOverview

IntroductiontoIGMP

Ifahostexpectstoreceivemulticastpacketsfromaspecicgroup,itneedstointercept

allpacketssenttothatgroup.T osolvetheroutingproblemformulticastpacketsonthe

Internet,thehostisrequiredtoinformthemulticastswitchesofthegroupthatitjoinsinor

leaves.

Inmulticast,InternetGroupManagementProtocol(IGMP)isusedforthistask.Inthis

way,themulticastswitchknowsthemembersofthemulticastgrouponthenetworkand

decideswhethertoforwardmulticastpacketstothenetwork.Whenamulticastswitch

receivesamulticastpacket,itchecksthemulticastdestinationaddressofthepacket,and

thenforwardsthepackettotheinterfacesinthegrouporthedownstreamswitch.

IGMPPrinciple

TheIGMPrunsbetweenahostandaswitchthatisconnectedtothehostdirectly.Its

functionisbidirectional.

lOntheonehand,ahostinformstheswitchthroughtheIGMPthatitexpectstoreceive

packetsfromaspecicmulticastgroup.

lOntheotherhand,theswitchcheckswhetherthemembersintheLocalAreaNetwork

(LAN)areinactivestateperiodicallythroughtheIGMP .Inthisway,theswitchcollects

andmaintainstherelationshipwiththemembersinthesegment.

ThroughtheIGMP ,aswitchrecordswhetherthereisagroupmemberofaspecicmulticast

groupinthelocalsegmentinsteadofthecorrespondingrelationshipbetweenthemulticast

groupandthehost.

TheIGMPprovidesinformationthatisnecessarywhenpacketsareforwardedtothe

destination(thelaststage).Multicastswitchesandhoststhatreceivemulticastdata

exchangeinformation.Theinformationiscollectedfromthegroupmembersofthehosts

thataredirectlyconnectedtomulticastswitches.

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ZXR105900ESeriesCongurationGuide(Multicast)

TheIGMPusestwotypesofpackets,groupmemberquerypacketsandgroupmember

reportpackets.

lAmulticastswitchperiodicallysendsgroupmemberquerypacketstoallhoststoknow

whetherspecicgroupmembersexistintheconnectedsubnets.

lThehostsreturnsreportpacketstoagroupmember,reportingthemulticastgroup

thattheybelongto.

lWhenahostjoinsinanewgroup,itsendsajoinpacketimmediatelyinsteadofwaiting

foraqueryincasethatthehostistherstmemberofthatgroupanditfailstoreceive

anymulticastpacket.

Whenahoststartstoreceivepacketsasamemberofagroup,themulticastswitchqueries

thegroupperiodicallytocheckwhetherthereisanyothermemberofthegrouponthe

network.Ifthereis,themulticastswitchcontinuestoforwarddata.

Whenthehostleavesthegroup,themulticastswitchreceivesaleavingpacketandthen

immediatelyquerieswhethertherearestillactivegroupmembersinthegroup.Ifthere

are,themulticastswitchcontinuestoforwarddata.Iftherearenot,itdoesnotforward

data.

Atpresent,therearethreeversionsfortheIGMP .

lIGMPv1(RequestForComments(RFC)1112):Itdenesthebasicqueryandreport

procedureofagroupmember.

lIGMPv2(RFC2236):ItaddsaleavingmechanismonthebasisofIGMPv1.

lIGMPv3(RFC3376):Itenablesamembertoselectthemulticastsource,which

supportstheSourceSpecicMulticast(SSM)mode.

2.2ConguringIGMP

Thefollowingcongurationisconguredoninterfacesinthenon-VRFmode.The

congurationoninterfacesintheVRFmodeisthesame.Forthecongurationtoenable

theVRFmode,refertothe"ConguringPublicIPMulticast"section.

ToconguretheIGMPbasicfunctionontheZXR105900E,performthefollowingsteps:

StepCommandFunction

1ZXR10(config-mcast)#routerigmpEntersIGMPconguration

mode.Usethenocommand

todeletealltheIGMP

congurations.

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Chapter2IGMPConguration

StepCommandFunction

ZXR10(config-mcast-igmp)#interface<interface-name>EntersIGMPinterface

congurationmode,even

ifIGMPisnotenabledonthe

interface.IGMPistriggeredby

PIMontheinterface.

2

ZXR10(config-mcast-igmp)#nointerface

<interface-name>

Deletestheinterface

congurationandrestores

thedefaultconguration.

3ZXR10(config-mcast-igmp)#ssm-mapstatic

{<access-list-number>|default}<source-address>

SetsSSMmapping.

ZXR10(config-mcast-igmp)#proxy-enableEnablestheIGMPproxy

function.

4

ZXR10(config-mcast-igmp)#noproxy-enableDisablestheIGMPproxy

function.

ZXR10(config-mcast-igmp)#require-alert-optionsCongurestodropthe

IGMPpacketswhoseIP

headersdonotcontaining

Router_Alert_Options.

5

ZXR10(config-mcast-igmp)#norequire-alert-optionsDisablesthefunction

ofdroppingtheIGMP

packetswhoseIP

headersdonotcontaining

Router_Alert_Options.

ForadescriptionoftheparameterinStep2,refertothefollowingtable:

ParameterDescription

<interface-name>Interfacename.

ForadescriptionoftheparameterinStep3,refertothefollowingtable:

ParameterDescription

<access-list-number>AccesslistnamefortheSSMgroup,with1-31characters.

TheIGMPfunctionoftheZXR105900EisbasedonthePIMinterface.TheIGMPfunction

isenabledautomaticallyoninterfacesonwhichthePIMisenabled.

CongureIGMPVersion

Atpresent,thereareIGMPv1,v2andv3.Bydefault,IGMPv2isused.Theversioncan

beadjustedusingtheversion<version>command.Forsecurity,aswitchrequiresthatall

NEsonthesamesegmentusethesameIGMPversion,theIGMPv1,v2orv3.

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ZXR105900ESeriesCongurationGuide(Multicast)

ThecongurationoftheIGMPversionisbasedontheinterface.Differentversionscanbe

conguredondifferentinterfaces.

CongureanIGMPGrouponanInterface

TocongureanIGMPgrouponaninterfaceoftheZXR105900E,performthefollowing

steps:

StepCommandFunction

1ZXR10(config-mcast-igmp-if-interface-name)#acces

s-group<access-list-number>

Setstherangeofgroupsthat

IGMPisallowedtojoin.

<access-list-number>:the

standardIPaccesslistname,

range:1-31characters.By

default,thereisnolimitabout

IGMPgroupjoining.

2ZXR10(config-mcast-igmp-if-interface-

name)#static-group<group-address>[source

{<source-address>[{include|exclude}]|ssm-map}]

Setsastaticgroupaddresson

anIGMPinterface.

<group-address>:addressof

thegroup,inthedotteddecimal

notation.

<source-address>:source

address,inthedotteddecimal

notation.

3ZXR10(config-mcast-igmp-if-interface-name)#imme

diate-leave{group-list<access-list-name>|all}

Setstherangeofgroups

allowingmemberstoleave

immediately.

<access-list-number>:standard

IPaccesslistname,range:

1–31characters.

4ZXR10(config-mcast-igmp-if-interface-name)#queri

er-election{connect|disable}

Setsquerierelection

restriction.

5ZXR10(config-mcast-igmp-if-interface-name)#igmp-

proxy<interface-name>

Congureanupstream

interfaceoftheproxyfunction

tosendIGMPreportmessages

foradownstreaminterface

(alsocalledaswitchinterface).

Usethenocommandtorestore

thedefaultconguration.

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Chapter2IGMPConguration

StepCommandFunction

6ZXR10(config-mcast-igmp-if-interface-name)#join-g

roup<group-address>

Conguresastaticgroup

memberonanIGMPinterface

tosendreportmessages.Use

thenocommandtodeletethe

staticgroupmember.

7ZXR10(config-mcast-igmp-if-interface-name)#mro

ute-proxy<interface-name>

Conguresanupstream

interfaceoftheproxyfunction

foradownstreaminterface

(alsocalledarouterinterface).

The(*,G)entriesofthe

interfacearecontainedonthe

egressinterface.IGMPreport

messagescanbesentonthe

upstreaminterface.Usetheno

commandtorestorethedefault

conguration.

8ZXR10(config-mcast-igmp-if-interface-name)#prox

y-service

Congurestheproxyfunction

atthehostside.Report

messagescanbesenton

theinterface.Usetheno

commandtorestorethedefault

conguration.

CongureIGMPTimers

AfterenablingtheIGMPontheinterfacesofmulticastswitchesconnectingtotheshared

networksegment,selecttheoptimuminterfaceasthequerierofthisnetworksegment.

Thequeriersendsquerymessagestoobtaintheinformationofthegroupmembers.

Aftersendingthequerymessage,thequerierwaitsforthememberreportsentfromthe

hostthatreceivesthequerymessageforaperiod.Thewaitdurationisthemaximum

responsetimecarriedinthequerymessage.Bydefault,itis10seconds.

Afterreceivingthequerymessage,ahostmemberinthenetworksegmentreducesa

randomdeviationvaluebasedonthemaximumresponsetime.Thisresultisusedasthe

responsetimeofthehostmember.Duringthisperiod,ifthequerierreceivesareportfrom

anotherhostmember,thishostmembercancelsthereport.Otherwise,thehostmember

sendsthehostreportwhentheresponsetimeexpires.Therefore,prolongingthemaximum

responsetimewillincreasethewaitingchangesofagroupmemberinthenetworksegment

accordinglyanddecreasetheburstofmultiplehostreportsinthenetworksegment.

Thetimersrelatedtothequeriercanbeadjustedasrequired.

TocongureIGMPtimersontheZXR105900E,performthefollowingsteps:

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ZXR105900ESeriesCongurationGuide(Multicast)

StepCommandFunction

1ZXR10(config-mcast-igmp-if-interface-name)#quer

y-interval<seconds>

SetstheIGMPqueryinterval.

<seconds>:range:1-65535

seconds,default:125

seconds.

2ZXR10(config-mcast-igmp-if-interface-name)#query

-max-response-time<seconds>

Setsthemaximumresponse

timecontainedinthequery

messages.

<seconds>:range:1-25

seconds,default:10seconds.

3ZXR10(config-mcast-igmp-if-interface-name)#queri

er-timeout<seconds>

SetstheIGMPqueriertimeout.

<seconds>:range:60-300

seconds,default:5*(query

interval*2+5)seconds.

4ZXR10(config-mcast-igmp-if-interface-name)#last-

member-query-interval<seconds>

SetstheIGMPqueryinterval

ofaspecicgroup.

<seconds>:range:1-25

seconds,default:1second.

5ZXR10(config-mcast-igmp-if-interface-name)#robu

stness-count<times>

Setstheallowednumberof

timesthatpacketsarelost.

<times>:range:2-7.

6ZXR10(config-mcast-igmp-if-interface-name)#unsoli

cited-report-interval<seconds>

Congurestheintervalof

sendingreportmessagesat

thehostsideforanupstream

interface.Range:1-25,

unit:seconds.Usetheno

commandtorestorethedefault

conguration.

7ZXR10(config-mcast-igmp-if-interface-name)#older-

version-querier-present<seconds>

Congurestheinterval

ofsendinghigher-version

reportmessageswhen

lower-versionquerymessages

arereceivedonanupstream

interface.Range:60-32000,

unit:seconds.Usetheno

commandtorestorethedefault

conguration.

2.3MaintainingIGMP

TomaintaintheIGMPfunctionontheZXR105900E,runthefollowingcommands.

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