User's Manual

RLX2 Industrial Hotspot Series
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ProSoftTechnology,Inc. Page93of208
February5,2015
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SpanningTreeSettings
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Field
Description
EnableSpanningTree
SpanningTreeisenabledwhenthisboxischecked.Withoutspanningtree,
redundantconnectionsmightexistifmultipleradiolinksarecreatedin
parallelwitheachother.Redundantconnectionsareblockedonlyifspanning
treeisenabled.Additionally,spanningtreeisusedtoflushtheEthernet
switchtablewh
enthenetworktopologychangesasdescribedinthesection
onAutomaticParentSelection.
AllRLX2modelssupportRapidSpanningTree(RSTP),andwillde faulttothis
modewhenenabled.
Therecommendedsettingforspanningtreeis“Enabled”.
EthernetEdgePort
BecauseRSTPisanactiveprotocol,itdependsoncommunicationbetween
RSTPdevices.IfnoRSTPdeviceisconnectedtotheradio’sEthernetport,the
handshakecannottakeplace.InthiscaseRSTPrevertstoSTP.Thismeans
thattheEthernetportwillbeforcedtoadheretothetimerbasedtransition
protocolofST
P.
Thereforeonnetworktransitionsandpowerup,communicationswillnotbe
allowedovertheEthernetportfor30to45seconds.Thissettingisan
indicationthatnoredundantconnectionsexistoutthisportand
communicationcanimmediatelybeallowed.IfforsomereasonaBP
DUis
receivedonthisport,theRSTPprotocolwillnegotiateproperlyandhandle
anypossibleredundantpaths.
TherecommendedsettingforEthernetEdgePortis"Enabled".