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Chapter6STPConguration
FIGURE14CONFIGURATIONOFMSTP
Thedifferencebetweenthisexampleandthepreviousexample
is:
Oneareacanhaveonlyoneinstancetocommunicatewiththe
externalnetworkEdgeportisinblockorforwardstateforall
theVLANs.Therefore,thereisnopossibilityofloadbalance.
AdvantagesofMSTParenotbroughtintoplay.InFigure14the
linkfromSwitchCtoSwitchAisinblockstateforalltheVLANs,
whilethelinkfromSwitchBtoSwitchAisinforwardstatefor
alltheVLANs.
CondentialandProprietaryInformationofZTECORPORATION55