diff --git a/Jenkinsfile-attworkflow-build b/Jenkinsfile-attworkflow-build
index 4658813..d83899c 100644
--- a/Jenkinsfile-attworkflow-build
+++ b/Jenkinsfile-attworkflow-build
@@ -207,57 +207,59 @@
                     }
                 }
             }
-            stage('Reinstall OLT software') {
-                for(int i=0; i < deployment_config.olts.size(); i++) {
-                    sh returnStdout: true, script: """
-                    sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'dpkg --remove asfvolt16 && dpkg --purge asfvolt16'
-                    """
-                    timeout(5) {
-                        waitUntil {
-                            olt_sw_present = sh returnStdout: true, script: """
-                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'dpkg --list | grep asfvolt16 | wc -l'
-                            """
-                            return olt_sw_present.toInteger() == 0
-                        }
-                    }
-                    sh returnStdout: true, script: """
-                    sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} "dpkg --install ${oltDebVersion}"
-                    """
-                    timeout(5) {
-                        waitUntil {
-                            olt_sw_present = sh returnStdout: true, script: """
-                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'dpkg --list | grep asfvolt16 | wc -l'
-                            """
-                            return olt_sw_present.toInteger() == 1
-                        }
-                    }
-                    // If the OLT is connected to a 40G switch interface, set the NNI port to be downgraded
-                    if ("${deployment_config.olts[i].fortygig}" != null && "${deployment_config.olts[i].fortygig}" == 'true') {
+            if ( params.reinstallOlt ) {
+                stage('Reinstall OLT software') {
+                    for(int i=0; i < deployment_config.olts.size(); i++) {
                         sh returnStdout: true, script: """
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'echo "port ce128 sp=40000" >> /broadcom/qax.soc'
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} '/opt/bcm68620/svk_init.sh'
+                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'dpkg --remove asfvolt16 && dpkg --purge asfvolt16'
                         """
+                        timeout(5) {
+                            waitUntil {
+                                olt_sw_present = sh returnStdout: true, script: """
+                                sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'dpkg --list | grep asfvolt16 | wc -l'
+                                """
+                                return olt_sw_present.toInteger() == 0
+                            }
+                        }
+                        sh returnStdout: true, script: """
+                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} "dpkg --install ${oltDebVersion}"
+                        """
+                        timeout(5) {
+                            waitUntil {
+                                olt_sw_present = sh returnStdout: true, script: """
+                                sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'dpkg --list | grep asfvolt16 | wc -l'
+                                """
+                                return olt_sw_present.toInteger() == 1
+                            }
+                        }
+                        // If the OLT is connected to a 40G switch interface, set the NNI port to be downgraded
+                        if ("${deployment_config.olts[i].fortygig}" != null && "${deployment_config.olts[i].fortygig}" == 'true') {
+                            sh returnStdout: true, script: """
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'echo "port ce128 sp=40000" >> /broadcom/qax.soc'
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} '/opt/bcm68620/svk_init.sh'
+                            """
+                        }
                     }
                 }
-            }
-            stage('Restart OLT processes') {
-                for(int i=0; i < deployment_config.olts.size(); i++) {
-                    timeout(5) {
-                        sh returnStdout: true, script: """
-                        ssh-keyscan -H ${deployment_config.olts[i].ip} >> ~/.ssh/known_hosts
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service bal_core_dist stop' || true
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service openolt stop' || true
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} '> /var/log/bal_core_dist.log'
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} '> /var/log/openolt.log'
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service bal_core_dist start &'
-                        sleep 5
-                        sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service openolt start &'
-                        """
-                    }
-                    timeout(15) {
-                        waitUntil {
-                            onu_discovered = sh returnStdout: true, script: "sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'cat /var/log/openolt.log | grep \"oper_state: up\" | wc -l'"
-                            return onu_discovered.toInteger() > 0
+                stage('Restart OLT processes') {
+                    for(int i=0; i < deployment_config.olts.size(); i++) {
+                        timeout(5) {
+                            sh returnStdout: true, script: """
+                            ssh-keyscan -H ${deployment_config.olts[i].ip} >> ~/.ssh/known_hosts
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service bal_core_dist stop' || true
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service openolt stop' || true
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} '> /var/log/bal_core_dist.log'
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} '> /var/log/openolt.log'
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service bal_core_dist start &'
+                            sleep 5
+                            sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'service openolt start &'
+                            """
+                        }
+                        timeout(15) {
+                            waitUntil {
+                                onu_discovered = sh returnStdout: true, script: "sshpass -p ${deployment_config.olts[i].pass} ssh -l ${deployment_config.olts[i].user} ${deployment_config.olts[i].ip} 'cat /var/log/openolt.log | grep \"oper_state: up\" | wc -l'"
+                                return onu_discovered.toInteger() > 0
+                            }
                         }
                     }
                 }