public class PingStage extends TargetFullFeatureStage
The execute(ProtocolDataUnit)
method will process these ping messages and send a NOP-In PDU as ping echo,
containing a copy of the NOP-Out PDU's data segment.
If either the NOP-OUT PDU's initiator or target transfer tag equals the reserved value of 0xffffffff, then no reply will be sent, since the PDU is only supposed to acknowledge a changed ExpCmdSN, or serve as an echo to a NOP-IN ping sent by the target.
connection, session, settings, targetPhase
Constructor and Description |
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PingStage(TargetFullFeaturePhase targetFullFeaturePhase) |
Modifier and Type | Method and Description |
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void |
execute(org.jscsi.parser.ProtocolDataUnit pdu)
Starts the stage.
|
createFixedFormatErrorPdu, createFixedFormatErrorPdu, createScsiResponsePdu, sendResponse
getConnection
public PingStage(TargetFullFeaturePhase targetFullFeaturePhase)
public void execute(org.jscsi.parser.ProtocolDataUnit pdu) throws IOException, InterruptedException, org.jscsi.exception.InternetSCSIException, DigestException, SettingsException
TargetStage
execute
in class TargetStage
pdu
- the first ProtocolDataUnit
to be processed in the stageIOException
- if the connection was closed unexpectedlyInterruptedException
org.jscsi.exception.InternetSCSIException
- if a PDU has violated the iSCSI standardDigestException
- if a digest error was detectedSettingsException
- if the program has attempted to access a value from settings which has not been
negotiated and which does not have a default valueCopyright © 2013 University of Konstanz, Distributed Systems Group. All Rights Reserved.