es.tid.bgp.bgp4.update.fields.pathAttributes

Class AS_Path_Attribute

java.lang.Object

es.tid.bgp.bgp4.objects.BGP4Object

es.tid.bgp.bgp4.update.fields.PathAttribute

es.tid.bgp.bgp4.update.fields.pathAttributes.AS_Path_Attribute

All Implemented Interfaces:

BGP4Element

public class AS_Path_Attribute
extends PathAttribute

RFC 4271 BGP-4 b) AS_PATH (Type Code 2): AS_PATH is a well-known mandatory attribute that is composed of a sequence of AS path segments. Each AS path segment is represented by a triple . The path segment type is a 1-octet length field with the following values defined: Value Segment Type 1 AS_SET: unordered set of ASes a route in the UPDATE message has traversed 2 AS_SEQUENCE: ordered set of ASes a route in the UPDATE message has traversed The path segment length is a 1-octet length field, containing the number of ASes (not the number of octets) in the path segment value field. The path segment value field contains one or more AS numbers, each encoded as a 2-octet length field. Usage of this attribute is defined in 5.1.2.

Author:

mcs

Field Summary

Fields inherited from class es.tid.bgp.bgp4.update.fields.PathAttribute

extendedLengthBit, log, mandatoryLength, optionalBit, partialBit, pathAttributeLength, transitiveBit, typeCode

Fields inherited from class es.tid.bgp.bgp4.objects.BGP4Object

bytes, length

Constructor Summary

Constructors

Constructor and Description
AS_Path_Attribute()
AS_Path_Attribute(byte[] bytes, int offset)

Method Summary

Modifier and Type	Method and Description
void	decode()
void	encode()
int	getNumberASes()
int	getType()
int	getValue()
void	setNumberASes(int numberASes)
void	setType(int type)
void	setValue(int value)
String	toString()

Methods inherited from class es.tid.bgp.bgp4.update.fields.PathAttribute

encodeHeader, equals, getAttibuteTypeCode, getAttributeLength, getMandatoryLength, getMandatoryLength, getPathAttributeLength, getTypeCode, hashCode, setPathAttributeLength, setTypeCode

Methods inherited from class es.tid.bgp.bgp4.objects.BGP4Object

getBytes, getLength, setBytes, setLength

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AS_Path_Attribute

public AS_Path_Attribute()

AS_Path_Attribute

public AS_Path_Attribute(byte[] bytes,
                         int offset)

Method Detail

encode

public void encode()

decode

public void decode()

getValue

public int getValue()

setValue

public void setValue(int value)

getType

public int getType()

setType

public void setType(int type)

getNumberASes

public int getNumberASes()

setNumberASes

public void setNumberASes(int numberASes)

toString

public String toString()

Overrides:

toString in class Object