es.tid.pce.pcep.objects

Class SwitchLayer

java.lang.Object

es.tid.pce.pcep.objects.PCEPObject

es.tid.pce.pcep.objects.SwitchLayer

All Implemented Interfaces:

PCEPElement

public class SwitchLayer
extends PCEPObject

Represents a SWITCH-LAYER Object, as defined in http://tools.ietf.org/id/draft-ietf-pce-inter-layer-ext-04.txt

From draft-ietf-pce-inter-layer-ext-04.txt, section 3.2. SWITCH-LAYER Object

The SWITCH-LAYER object is optional on a PCReq message and specifies switching layers in which a path MUST, or MUST NOT, be established. A switching layer is expressed as a switching type and encoding type. The SWITCH-LAYER object MUST NOT be used on a PCReq unless an INTER-LAYER object is also present on the PCReq message. The SWITCH-LAYER object is optional on a PCRep message, where it is used with the NO-PATH object in the case of unsuccessful path computation to indicate the set of constraints that could not be satisfied. SWITCH-LAYER Object-Class is to be assigned by IANA (recommended value=19) SWITCH-LAYER Object-Type is to be assigned by IANA (recommended value=1) The format of the SWITCH-LAYER object body is as follows: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | LSP Enc. Type |Switching Type | Reserved |I| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | . | // . // | . | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | LSP Enc. Type |Switching Type | Reserved |I| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Each row indicates a switching type and encoding type that must or must not be used for specified layer(s) in the computed path. The format is based on [RFC3471], and has equivalent semantics. LSP Encoding Type (8 bits): see [RFC3471] for a description of parameters. Switching Type (8 bits): see [RFC3471] for a description of parameters. I flag (1 bit): the I flag indicates whether a layer with the specified switching type and encoding type must or must not be used by the computed path. When the I flag is set (one), the computed path MUST traverse a layer with the specified switching type and encoding type. When the I flag is clear (zero), the computed path MUST NOT enter or traverse any layer with the specified switching type and encoding type. When a combination of switching type and encoding type is not included in SWITCH-LAYER object, the computed path MAY traverse a layer with that combination of switching type and encoding type. A PCC may want to specify only a Switching Type and not an LSP Encoding Type. In this case, the LSP Encoding Type is set to zero.

Author:

ogondio

Field Summary

Fields inherited from class es.tid.pce.pcep.objects.PCEPObject

Ibit, log, object_bytes, ObjectClass, ObjectLength, OT, Pbit, Res

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	decode() Decode SwitchLayer PCEP Object
void	encode() Encode SwitchLayer PCEP Object
boolean	equals(Object obj)
LinkedList<SwitchEncodingType>	getSwitchLayers()
int	hashCode()
void	setSwitchLayers(LinkedList<SwitchEncodingType> switchLayers)

Methods inherited from class es.tid.pce.pcep.objects.PCEPObject

decode, decodeHeader, encode_header, getBytes, getLength, getObject_bytes, getObjectClass, getObjectClass, getObjectLength, getObjectType, getOT, getRes, isIbit, isPbit, setIbit, setObject_bytes, setObjectClass, setObjectLength, setOT, setPbit, setRes, supportedObject

Methods inherited from class java.lang.Object

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

Constructor Detail

SwitchLayer

public SwitchLayer()

SwitchLayer

public SwitchLayer(byte[] bytes,
                   int offset)
            throws MalformedPCEPObjectException

Throws:

MalformedPCEPObjectException

Method Detail

encode

public void encode()

Encode SwitchLayer PCEP Object

Specified by:

encode in interface PCEPElement

Specified by:

encode in class PCEPObject

decode

public void decode()
            throws MalformedPCEPObjectException

Decode SwitchLayer PCEP Object

Specified by:

decode in class PCEPObject

Throws:

MalformedPCEPObjectException

getSwitchLayers

public LinkedList<SwitchEncodingType> getSwitchLayers()

setSwitchLayers

public void setSwitchLayers(LinkedList<SwitchEncodingType> switchLayers)

hashCode

public int hashCode()

Overrides:

hashCode in class PCEPObject

equals

public boolean equals(Object obj)

Overrides:

equals in class PCEPObject