Class L3Packet

java.lang.Object

L3Packet

public class L3Packet
extends java.lang.Object

This class represents a L3 packet, as defined in our class wiki. The constructors allow you to create an L3 packet from a string of bits, (as is done when an L3 packet is received), or to create one from values for the fields (as is done when an L3 packet is being created).

Constructor Summary

Constructors

Constructor and Description
L3Packet(L3Address dest, L3Address src, java.lang.String payload) Create an L3Packet from field values.
L3Packet(java.lang.String bits) Create an L3Packet from a string of bits.

Method Summary

Methods

Modifier and Type	Method and Description
L3Address	getDestAddr()
int	getHopsLeft()
java.lang.String	getPayload()
L3Address	getSrcAddr()
java.lang.String	toString() Create the String of 0s and 1s representing the packet.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

L3Packet

public L3Packet(L3Address dest,
        L3Address src,
        java.lang.String payload)

Create an L3Packet from field values. Compute the length field from the payload.

L3Packet

public L3Packet(java.lang.String bits)

Create an L3Packet from a string of bits. Throw an exception if the length of the payload is not the same as in the length field.

Method Detail

toString

public java.lang.String toString()

Create the String of 0s and 1s representing the packet.

Overrides:

toString in class java.lang.Object

getSrcAddr

public L3Address getSrcAddr()

getDestAddr

public L3Address getDestAddr()

getPayload

public java.lang.String getPayload()

getHopsLeft

public int getHopsLeft()