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8/12/2019 Case Study - OLA to ROADM Strategy
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OLAtoROADMStrategy00716188WongChowJiat (CJWong)
Description :
StepbystepstrategyonconvertingOLAtoROA
DM.
IncountryK,arequestonconvertingtheOSN6800
typefrom
OLA
to
ROADM,
below
is
the
strategy
planned
and
deploy.Operationissuccessfullyimplementedaccordingt
ostrategy
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OLA ROADMStrategy
(Suwon JungBul Ring)
CJ WONG 0071618820
thOctober 2011
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GeneralOLA ROADMStrate
gy1. Preparedesign+documents(ODFconnection)requiredforthenodec
onversion
2. Physicalinstallation mustbereadybeforenodeconversion;includeupl
oadtoNMS
andpreconfiguresignal flowconfiguredasperdesignandoptical xconnectpreconfigured.
3. Health precheckonNEbeforenodeconversion(1daybeforenodeconversion)
4. Required
2teamreadyonthedayfornodeconversion:Team AinSuwon
forfibercut over,troubleshooting /rollbackplanTeamBinNOC
remotecommissioning, troubleshooting /rollbackplan
5. HealthprecheckonNEbeforenodeconversion(onthedayofnode
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c
onversion)
rcut over,commissioningopticalpowerandhealthpostchecknNE
plantriggerediffailtobringupservicesorabnormalscenari
occurred
Page1
6. Fibe
o
7. Rollback
o
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Node Conversion Requirement
Preparedesign+documents(ODFconnection)requiredforthenodeconversion
Required2teamreadyonthedayfornodeconversion:TeamAinSuwon forfibercut over,troubleshooting/rollbackplanTeam BinNOC remotecommissioning, troubleshooting /rollbackplan
BukCheona
n_1
Nonhy Suwo
nTeamAinSuwon;
TeamBinNOC;
Onsiteengineerequippedpowermeterincaserequiredfor
troubleshooting
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Node Conversion Window
12:0
0
NEHealt
2:0
0
4:00
120mi 120min
Trigger RollBackifStartNodeConversion;Finis
h fail to bring upservices;Finish NEHealth Postcheck
*Timeallocated above is estimated only andwill be should be assess
accordingly
12:00
Start NEHealth Pre check
2:00 Start Node Conversion procedure (fiber cutover)
4:00
Trigger RollBackplanif fail to bring upservices
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SOWNode
Conversion
Current JungBul ringconfiguration
Node conversion
(OLA
ROADM)
in
Suwon
Bangbae Nonhyun
Suwon(ROADM)
Gasan
Anyang
BukCheona
Suwon(OLA)
BukCheonan_1
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Tanbang
Page
4
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SOWNode Conversion
Step 1:OSN6800hardwareinstallation andphysical fiber
connection
Preparation ofOSN6800OLAROADMhardwareinstallationin
Suwon
Connect all physical connection (prelayfiber asperdesignplan
andDCNconnection)
BukCheonan_
1Nonhy
PrepareothersubrackinSuwon
Suwon(OLA
)
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asROADMaccordinglytot
he
designplanandlocationduring
sitesurvey
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SOWNode ConversionStep 2:Upload OSN6800(ROADM)to
NMS(U2000)andpreconfiguration
Basiccommissioning andpreconfigureaccordingly to
design
Utilize new
NE ID
for new
Suwon ROADM
NewSuwon(ROADM)node
uploadtoNMS(U2000)and
basiccommissioningaccording
todesign
Preconfigurelogicalfiberconnection(signalflowdiagram)
accordingdesign
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SOWNode Conversion
Step 2:Upload OSN6800(ROADM)to
NMS(U2000)andpreconfiguration
Please take noteto
pre
configure
optical
cross
connect
(single
station
opticalcrossconnection)fromFIUtoFIUforexistinglambdathatpass
throughthelink
Preconfiguretheoptical
crossconnectfromFIUtoFIU
forallexistinglambda
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SOWNode ConversionStep 3:NEhealth precheck (1daybefore node conversion)
Check JungBul ringall NEcurrent alarm andhistory alarm
andrectify if there is alarm reported.
Checkonthecurrentalarmof
theNE. Rectifyanyalarmand
informHuaweiifoccurred
abnormalalarm
Checkonthehistoryalarmof
theNE. InformHuaweiifnotice
anyalarmthatreoccurringfrequentlythedaybeforenode
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insertion
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SOWNode Conversion
Step 3:NEhealth precheck (1daybefore node conversion)
Check related WDMtrail that passthrough the
NonhyunSuwon(OLA)BukCheonan_1link
CheckrelatedWDMtrail.
Rectifyanyalarmand
informHuaweiifoccurred
abnormalalarm
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SOWNode Conversion
Step 3:NEhealth precheck (1daybefore node
conversion)
Verify JungBul ringall NEamplifier input/outputpoweris normal
and
commissioned accordingly to design
VerifyNEamplifer optical
powerinOpticalPower
Manangementsection.
Ensurethatitis
commissionedaccordinglyto
design
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SOWNode Conversion
Step 3:NEhealth precheck (1daybefore node
conversion)
Verify JungBul ringall NEOSNRis normalandwithinacceptable
range
VerifyNEOSNRusingMCA4
andensureitiswithin
acceptablerange
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SOWNode Conversion
Step 3:Health precheck (1daybefore node
conversion)
Any abnormality the equipment that currentlypassthrough
JungBul ring
for add/drop services ?
Requiredcustomer feedback.
Reason for this check :Avoid unwanted customerdissatisfaction
hinting problem inour node conversion procedure
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SOWNode Conversion
Step 4:NEhealth precheck (on the day execute node
conversion) andbackup
Please doaquick precheck accordingly to Step 3.
Record
JungBul ring
all NE
amplifier input/output
powervalue. (For
Health postcheck usage)
RecordJungBul ringall NEOSNRvalue. (For Health
postcheck usage)
Backup NEdatabase inNMS(U2000)before fibercut
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SOWNode Conversion
Step 5:Preparelive network services to useselective route
According to live network services trail,go to each
node inJungBulringandenter into the PortProtection interface,select
Force toworking channel or Force to protection channel to
lockdown theworking route ofall services to avoid route that
passthrough Suwon(OLA)
Alwaysremembertoselect
Querytorefreshtheswitchingstatus before
proceedtoselectthe
forcedroute.
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SOWNode Conversion
Step 6:Deletion ofWDMtrails
Select delete from network layer for
OMS,OCS,OCH&Client trailwhich pass through NonhyunSuwon(OLA)
BukCheonan_1
link
Selectdeletefromnetwork
layerforOMS,OCS,OCH&
Clienttrail.
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SOWNode Conversion
Step 7:Create logical fiber connection inNMS
Delete existing logical fiber connection between
NonhyunSuwon(OLA)BukCheonan_1link
Establish newlogical fiber connection between
NonhyunSuwon(OLA)BukCheonan_1link
Deleteoldlogicalfiber
connectionandconnectnew
logicalfiberconnection
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SOWNode Conversion
Step 8:Fiber cutover
Inform customer NOCon services disruption andnode
conversionexecution during preplanned downtime window
Disconnect existing NonhyunSuwon (OLA) fiber
andreconnect existingfiber to Suwon (ROADM)
Disconnect existing BukCheonan_1Suwon(OLA)fiberandreconnect
existing fiber to Suwon (ROADM)
Suwon(OLA)
BukCheonan_1
TeamAinSuwonwilldisconnect
theexistingfiberandreconnect
Nonhyun
Suwon(ROAD
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existingfib
ertonewSuwon
(ROADM)
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SOWNode Conversion
Step 9:Commission the optical power for the newSuwon (ROADM)
Please start commission in1direction follow by another
direction
Ensure the amplifier is optical power output
according todesign (Design
Output=Design Input*OAType)OBU103=23,OAU101=20
BukCheona
n_1Nonhy Suwon(ROAD
M)
TeamBinNOCwillperform
remotecommissionofoptical
poweroutput
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SOWNode Conversion
Step 10:Update the WDMtrail
Search for updated WDMtrail andverify newWDMtrail in
Manage WDMtrail interface;ensure alarm statusis normal
Create WDM
trail;
manually change the name of
the trailif the
automatically selected is not accordingly to customerstandard
SearchforupdatedWDMtrail
andverifythenewWDMtrail
status. Rectifyanyalarmand
informHuaweiifoccurred
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SOWNode Conversion
Step 11:NEhealth postcheck (after finish commission
optical power)
Please go through Step 3for postcheck
Rectify any alarm and
inform Huawei if occured anyabnormal
alarm
Please take noteto ensure all NEampliferinput/outputoptical
power is normalandOSNRis within acceptable range
Release the force routeby select Clearoptioninthe Port
Protection interfacefor all involved node
OnceStep 11is
finish;NODE
CONVERSIONSUCCESSFUL!
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!!
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SOWNode Conversion
Step 1:RollbackProcess
Rollbackwill kick off,if scenario below after fiber cutover
materialized
Commissioning optical power fail bring up
services Unable to rectify abnormal alarm which affect services
Ensure sufficient timesis available (2hours)for the rollback
Restore fiber connection asbefore fiber cutover
Please go through Step 3for post chec k
Suwon(OLA)
BukCheonan
_1TeamAinSuwon willrestor
e
fiberconnectiontoprevious
Nonhyun
Suwon(ROADconnection. TeamBinNO
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Cwill
performNEhealthpostcheck
afterrollbacktriggered
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