etri.sdn.controller.protocol.packet

Class BPDU

java.lang.Object

etri.sdn.controller.protocol.packet.BasePacket

etri.sdn.controller.protocol.packet.BPDU

All Implemented Interfaces:

IPacket

public class BPDU
extends BasePacket

This class is a Rapid Spanning Tree Protocol Bridge Protocol Data Unit

Author:

alexreimers

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BPDU.BPDUType

Field Summary

Fields

Modifier and Type	Field and Description
private long	destMac
private byte	flags
private short	forwardDelay
private short	helloTime
private LLC	llcHeader
private short	maxAge
private short	messageAge
private short	portId
private short	protocolId
private byte[]	rootBridgeId
private int	rootPathCost
private byte[]	senderBridgeId
private byte	type
private byte	version

Fields inherited from class etri.sdn.controller.protocol.packet.BasePacket

parent, payload

Constructor Summary

Constructors

Constructor and Description
BPDU(BPDU.BPDUType type)

Method Summary

Methods

Modifier and Type	Method and Description
IPacket	deserialize(byte[] data, int offset, int length) Deserializes this packet layer and all possible payloads
long	getDestMac()
byte[]	serialize() Sets all payloads parent packet if applicable, then serializes this packet and all payloads

Methods inherited from class etri.sdn.controller.protocol.packet.BasePacket

clone, equals, getParent, getPayload, hashCode, resetChecksum, setParent, setPayload

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

destMac

private final long destMac

See Also:

Constant Field Values

llcHeader

private LLC llcHeader

protocolId

private short protocolId

version

private byte version

type

private byte type

flags

private byte flags

rootBridgeId

private byte[] rootBridgeId

rootPathCost

private int rootPathCost

senderBridgeId

private byte[] senderBridgeId

portId

private short portId

messageAge

private short messageAge

maxAge

private short maxAge

helloTime

private short helloTime

forwardDelay

private short forwardDelay

Constructor Detail

BPDU

public BPDU(BPDU.BPDUType type)

Method Detail

serialize

public byte[] serialize()

Description copied from interface: IPacket

Sets all payloads parent packet if applicable, then serializes this packet and all payloads

Returns:

a byte[] containing this packet and payloads

deserialize

public IPacket deserialize(byte[] data,
                  int offset,
                  int length)

Description copied from interface: IPacket

Deserializes this packet layer and all possible payloads

offset - offset to start deserializing from

length - length of the data to deserialize

Returns:

the deserialized data

getDestMac

public long getDestMac()