Zte ZXR10 5900E Series - IGMP Snooping Configuration

Chapter4IS-ISConguration
Therelationthatcanbeestablishedbetweenroutersisasfollows:
àL1neighborrelationcanbeestablishedbetweentwoL1routersonlywhenthe
areaIDsofthemmatcheachother.
àL2neighborrelationcanbeestablishedbetweentwoL2routersevenifthearea
IDsdonotmatcheachother.
àL1neighborrelationcanbeestablishedbetweenoneL1routerandoneL1/L2
routeronlywhentheareaIDsofthemmatcheachother.
àL2neighborrelationcanbeestablishedbetweenoneL2routerandoneL1/L2
routereveniftheareaIDsoftheroutersdonotmatcheachother.
àL1neighborrelationandL2neighborrelationcanbeestablishedbetweentwo
L1/L2routersatthesametimeiftheareaIDsofthemmatcheachother.
àL2neighborrelationcanbeestablishedbetweentwoL1/L2routersifthearesIDs
ofthemdonotmatcheachother.
lIS-ISaddressarchitecture
ISOaddressisanetworkaddress.ItisusedtoindicatetheareaIDandthesystemID.
TheNETaddressformatcanbeexpanded.ThesystemIDusuallyconsists6bytes.
ItisusedtoidentifytheinterfaceMACaddress.
NSAPconsistsoftheInitialDomainPart(IDP)andtheDomainSpecicPart(DSP),
seeFigure4-2.TheIDPissimilartothenetworkIDinanIPaddress,andtheDSPis
similartothesubnetID,hostaddress,andtheportinanIPaddress.
Figure4-2NSAPAddressArchitecture
TheIDPisdenedbytheISO.ItconsistsoftheAuthorityandFormatIdentier(AFI)
andtheInitialDomainIdentier(IDI).AFIreferstotheaddressallocationorganization
andtheaddressformat.TheIDIisusedtoidentifythedomain.
TheDSPconsistsoftheHighOrderDSP ,SystemIDandtheSEL.
àTheHODSPisusedtodivideareas.
àThesystemIDisusedtodistinguishhosts.
àTheSELisusedtoindicateservicetype.
ThelengthoftheIDPandtheDSPcanbechanged.TheNSAPcanbeupto20bytes
inlengthandatleast8bytes.ThesystemIDidentiesauniquehostorarouterinan
area.Itslengthis48bit(6bytes)invariably.TheSEL(NSAPSelector,sometimesitis
4-3
SJ-20150114102049-003|2015-01-15(R1.0)ZTEProprietaryandCondential