Zte ZXR10 ZSR V2 - Page 22

ZXR10ZSRV2CongurationGuide(IPv6)
AllocationPrexFractionofAddressSpace
Sitelocalunicastaddress1111111011[FEC]1/1024
Multicastaddress11111111[FF]1/256
Note:
Thehexnumberin[]inthistablereferstothestartingandendinghexnumbersofthe
correspondingaddress.
BroadcastaddressinIPv6isnotvalidanymore.RFCdenesthreetypesofIPv6address:
lUnicast
Itistheidentierofasingleinterface.Thepacketssenttoaunicastaddressare
transmittedtotheinterfacewiththisaddressidentier.
lMulticast
Itistheidentierofagroupofinterfaces.Theseinterfacesbelongtodifferentnodes.
Thepacketssenttoamulticastaddressaretransmittedtoalltheinterfaceswiththis
addressidentier.
lAnycast
Itistheidentierofagroupofinterfaces.Theseinterfacesbelongtodifferentnodes.
Thepacketssenttoananycastaddressaretransmittedtoaninterfacewiththis
addressidentier(selectingthenearestonebycalculatingthedistancebasedon
routingprotocol).
AnIPv6unicastaddresscanberegardedasanentitywithtwoelds.Oneeldisused
toidentifynetworksandtheotherisusedtoidentifyinterfacesofnodesonthisnetwork.
Inthesubsequentdescriptionofthespecicunicastaddresstypes,theuserndsthat
thenetworkidentiercanbedividedintoseveralparts,eachofwhichidentiesdifferent
networkparts.
UnicastAddress
FunctionsofanIPv6unicastaddressaresubjecttoClasslessInter-DomainRouting
(CIDR),whichisthesameasthatofanIPv4address.Thatis,anaddressisdividedinto
twopartsuponaspecicboundary.Thehighbitpartofanaddressincludesaprexfor
routingandthelowbitpartincludesidentiersofnetworkinterfaces.
IntheIPv6addressingsystemstructure,anyIPv6unicastaddressrequiresaninterface
identier.Aninterfaceidentierisverysimilartothe48-bitMediaAccessControl(MAC)
address.TheMACaddressesareencodedthroughhardwareinanetworkinterfacecard.
Theyareburnedbythemanufacturerintoanetworkinterfacecardandaregloballyunique.
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SJ-20140504150128-018|2014-05-10(R1.0)ZTEProprietaryandCondential