DatalinkPacket

edu.gwu.simplenetsim
Class DatalinkPacket

java.lang.Object
  edu.gwu.simplenetsim.NetsimPacket
      edu.gwu.simplenetsim.DatalinkPacket

The class that contains stuff for a datalink-layer packet. The class has a number of public fields typical in datalink packets.

Field Summary
`java.lang.String`	`controlInfo` The control payload.
`NetworkPacket`	`data` The payload.
`int`	`fromNeighbor` Who is this from?
`boolean`	`isControl` Is this a control packet, generated by and used solely by datalink layers?
`int`	`seqnum` The well-known sequence-number field.
`int`	`toNeighbor` Where is it going? This can only be a neighbor.

Fields inherited from class edu.gwu.simplenetsim.NetsimPacket
`CIRCLE, IDCount, SQUARE`

Constructor Summary
`DatalinkPacket(int fromNeighbor, int toNeighbor, NetworkPacket data)` Constructor used for regular packets.
`DatalinkPacket(int fromNeighbor, int toNeighbor, java.lang.String controlInfo)` Constructor used by control packets.

Method Summary
`java.lang.String`	`toString()` For debugging.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

public int fromNeighbor

Who is this from?

public int toNeighbor

Where is it going? This can only be a neighbor.

public NetworkPacket data

The payload.

public boolean isControl

Is this a control packet, generated by and used solely by datalink layers?

public java.lang.String controlInfo

The control payload.

public int seqnum

The well-known sequence-number field.

Constructor Detail

public DatalinkPacket(int fromNeighbor,
                      int toNeighbor,
                      NetworkPacket data)

Constructor used for regular packets.

Parameters:: fromNeighbor - an int value; toNeighbor - an int value; data - a NetworkPacket value

public DatalinkPacket(int fromNeighbor,
                      int toNeighbor,
                      java.lang.String controlInfo)

Constructor used by control packets.

Parameters:: fromNeighbor - an int value; toNeighbor - an int value; controlInfo - a String value

Method Detail

public java.lang.String toString()

For debugging.