Zte ZXR10 5900E Series - L2 PT Configuration; L2 PT Overview; Command Configuration

Chapter13
L2PTConfiguration
TableofContents
L2PTOverview................................................................103
CommandConguration...................................................103
L2PTCongurationExample..............................................104
L2PTOverview
IntheVPNmodeofQinQ,iftheVPNusersindifferentlocations
wanttoruntheirlayer2protocol,corenetworkneedtotranspar-
entlytransmittheselayer2protocolpackets.Thesepacketscan't
betransparentlytransmitted,L2PTisusedtotransparentlytrans-
mitclientnetworklayer2protocolpacketinQinQVPNnetwork
environment.
ThefullnameofL2PTislayer2protocoltunnel,whichisalayer
2protocoltunneltechnology.Theprincipleisthatthereceiving
layer2protocolpacketisencapsulatedbyamulticastaddresson
tunnledportofedgeswitch,andthentheencapsulatedpacketis
broadcastinvlan,thesepacketsarede-encapsulatedontheport
ofremoteswitchthatenablestunneled.Intheend,transparent
transmissionisimplemented.Layer2protocolpacket(STP),on
theportthatdoesn'tenableL2PT ,willnotbetransmittedinthe
providernetwork,whichwillcausethattheclientnetworkforms
severalunconnectedstpdomainbasedonareaborderandthe
clientVPNnetworkcan'trunauniformSTPtopology.L2PTcan
helpusertomeettherequirementbytransparentlytransmitting
STPBPDUpacketinVPN.
CommandConfiguration
ToenableportorcloseL2PTtunnel,usethefollowingcommand.
CommandFunction
ZXR10(config-gei_1/x)#l2protocol-tunneledstp{enable
|disable}
Thisenables/disablesport
tunneled.
Thiscommandisconguredintheinterfacemode.Itisusedto
enableordisableacertainporttunneled.STPeldindicateslayer
CondentialandProprietaryInformationofZTECORPORATION103