Zte ZXA10 C300 - Chapter 16 MPLS Service Configuration; 16.1 MPLS Configuration; 16.2 VPLS Configuration; 16.3 Configuring the VPWS

Chapter16
MPLSServiceConguration
MultiprotocolLabelSwitching(MPLS)isoriginallydevelopedtoincreaseforwardspeedof
routers.HavingprominentadvantagesintheapplicationsoftrafcengineeringandVPN,
theMPLSprotocolplaysanimportantroleinIPnetworks.
ThekeypointoftheMPLSprotocolistheconceptoflabels,whichareshort,
easy-to-handle,andwithouttopologyinformation.Labelscontaininformationthatonly
affectsinacertainarea.
Initially,MPLSfocusonIPv4.However,thekeytechniquesofMPLScanbeexpandedto
multipleprotocols,suchasIPv6,IPX,Apple-talk,andSNA.MPLShasnolimitationonthe
linklayertechniquesandcantransportnetworkgroupsoveranymediabetweennetwork
entities.
MPLSpacketsareforwardedbasedonlabels.WhenIPpacketsenteranMPLSnetwork,
thePEroutersontheMPLSingressanalyzethecontentsofthepacketsandselectthe
properlabelsforthepackets.ThepacketsareforwardedbynodesintheMPLSnetwork
accordingtotheseshortlabels.WhenthepacketsleavetheMPLSnetwork,thePErouters
ontheMPLSegressremovethelabels.
TableofContents
MPLSConguration.................................................................................................16-1
VPLSConguration................................................................................................16-23
ConguringtheVPWS...........................................................................................16-47
PWE3Conguration...............................................................................................16-54
PWRedundancyConguration..............................................................................16-78
16.1MPLSConguration
16.1.1ConfiguringtheBasicMPLSFunction
InthebasicMPLSapplication,theMPLSforwardingisbasedontheLDPsessionsbetween
routers.
NetworkingDiagram
Figure16-1showsthenetworkingdiagramofthebasicMPLSfunction.
16-1
SJ-20130520164529-007|2013-06-30(R1.0)ZTEProprietaryandCondential