question: protected void discoverOnAllPorts ( ) { if ( log . isTraceEnabled ( ) ) { log . trace ( "Sending LLDP packets out of all the enabled ports" ) ; } for ( long sw : floodlightProvider . getAllSwitchDpids ( ) ) { IOFSwitch iofSwitch = floodlightProvider . getSwitch ( sw ) ; if ( iofSwitch == null ) continue ; if ( iofSwitch . getEnabledPorts ( ) != null ) { for ( ImmutablePort ofp : iofSwitch . getEnabledPorts ( ) ) { if ( isLinkDiscoverySuppressed ( sw , ofp . getPortNumber ( ) ) ) continue ; if ( autoPortFastFeature && iofSwitch . isFastPort ( ofp . getPortNumber ( ) ) ) continue ; sendDiscoveryMessage ( sw , ofp . getPortNumber ( ) , true , false ) ; NodePortTuple npt = new NodePortTuple ( sw , ofp . getPortNumber ( ) ) ; addToMaintenanceQueue ( npt ) ; } } } }
target:  Send LLDPs to all switch-ports