Zte ZXR10 5900E Series User manual

ZXR105900ESeries
Easy-MaintenanceMPLSRoutingSwitch
CongurationGuide(Multicast)
Version:3.00.11
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Postcode:518057
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Fax:[phone]
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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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