Case Study - OLA to ROADM Strategy

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


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


Establish newlogical fiber connection between


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



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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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Case Study - OLA to ROADM Strategy

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