RTRV-ALM 31of21Page RTRV-ALM
DescriptionReportDescriptionReport
(Contd)DescriptionsRTRV-ALM11-3.Table
MeaningDescription
AISVTinc. indicationalarmpathVTadetectedhassystemThe
Theline.OC-nactivethefromincoming(AIS)signal
thetowardAISDS1transmittingbyrespondssystem
the(forDSX-3orLAN)IMAtoNA(DSX-1DSX-1
backyellowVTandonly)packcircuitTMUXBBG20
received.beingisAISthewhichfromfiberthetoward
cross-connectincorrectorIncompletecauses:Likely
unprotectednetwork;end-to-endinprovisioning
orLANIMAorT1EXTDS1,aoffailureorremoval
end.fartheatCP(BBG20)TMUX
AISVTaffectingnon-serviceaapplications,ringIn
orOLIUupstreamanfromresultmaymessagealarm
VTAdirection.ringoneonlyaffectingfailurefiber
non-serviceaforreturnednotismessagealarmyellow
AIS.VTaffecting
LOPVTinc. (LOP)loss-of-pointerVTadetectedhassystemThe
condition.
orT1EXTDS1,aoffailureUnprotectedcauses:Likely
aoffailureunprotectedend;neartheatCPLANIMA
theatCP(BBG20)TMUXorLANIMAorT1EXTDS1,
theatCPMXRVOanoffailureunprotectedend;far
theatCPOC1anoffailureunprotectedend;farornear
end.far
(BER)degradesig.VTinc. adetectedhassystemthering,switchedpathVTaIn
ofthresholdprovisionedtheexceedsthatrateerrorVT
10
-5
10to
-8
fromsignalVTgoodaselectssystemThe.
path.ringotherthe
fiberaorfailurepackcircuitOLIUAncauses:Likely
ring.failedtheonpointsomeatfailure
unequippedVTinc. (SONETcodeunequippedthedetectedhassystemThe
in-anonbyte=0)labelcodesignalVToverheadpath
channel.VT1.5service
hascross-connectVT1.5upstreamAncause:Likely
deleted.been
yellowVTinc. insertingandLOPVTorAISVTdetectingisendfarThe
signal.transmititsinyellowVT
aoffailureunidirectionalUnprotectedcauses:Likely
path.end-to-endtheinpointsomeatfiberorpackcircuit
valuesDCCinconsistent samethesetarevaluesparameter"User/Network"The
DCC.theofendsbothat
OC-3DDM-2000 2000February2Issue 11-553
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