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

Class LinkStateAttribute

java.lang.Object

es.tid.bgp.bgp4.objects.BGP4Object

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

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

All Implemented Interfaces:

BGP4Element

public class LinkStateAttribute
extends PathAttribute

Link-State Info Distribution using BGP, July 2012 3.3. The LINK_STATE Attribute This is an optional non-transitive BGP attribute that is used to carry link and node link-state parameters and attributes. It is defined as a set of Type/Length/Value (TLV) triplets, described in the following section. This attribute SHOULD only be included with Link State NLRIs. This attribute MUST be ignored for all other NLRI types. 3.3.1. Link Attribute TLVs Link attribute TLVs are TLVs that may be encoded in the BGP-LS attribute with a link NLRI. Each 'Link Attribute' is a Type/Length/ Value (TLV) triplet formatted as defined in Section 3.1. The format and semantics of the 'value' fields in some 'Link Attribute' TLVs correspond to the format and semantics of value fields in IS-IS Extended IS Reachability sub-TLVs, defined in [RFC5305] and [RFC5307]. Other 'Link Attribute' TLVs are defined in this document. Although the encodings for 'Link Attribute' TLVs were originally defined for IS-IS, the TLVs can carry data sourced either by IS-IS or OSPF. The following 'Link Attribute' TLVs are are valid in the LINK_STATE attribute: +----------+----------------------+---------------+-----------------+ | TLV Code | Description | IS-IS TLV | Defined in: | | Point | | /Sub-TLV | | +----------+----------------------+---------------+-----------------+ | 1028 | IPv4 Router-ID of | 134/--- | [RFC5305]/4.3 | | | Local Node | | | | 1029 | IPv6 Router-ID of | 140/--- | [RFC6119]/4.1 | | | Local Node | | | | 1030 | IPv4 Router-ID of | 134/--- | [RFC5305]/4.3 | | | Remote Node | | | | 1031 | IPv6 Router-ID of | 140/--- | [RFC6119]/4.1 | | | Remote Node | | | | 1088 | Administrative group | 22/3 | [RFC5305]/3.1 | | | (color) | | | | 1089 | Maximum link | 22/9 | [RFC5305]/3.3 | | | bandwidth | | | | 1090 | Max. reservable link | 22/10 | [RFC5305]/3.5 | | | bandwidth | | | | 1091 | Unreserved bandwidth | 22/11 | [RFC5305]/3.6 | | 1092 | TE Default Metric | 22/18 | [RFC5305]/3.7 | | 1093 | Link Protection Type | 22/20 | [RFC5307]/1.2 | | 1094 | MPLS Protocol Mask | --- | Section 3.3.2.2 | | 1095 | Metric | --- | Section 3.3.2.3 | | 1096 | Shared Risk Link | --- | Section 3.3.2.4 | | | Group | | | | 1097 | Opaque link | --- | Section 3.3.2.5 | | | attribute | | | | 1098 | Link Name attribute | --- | Section 3.3.2.6 | +----------+----------------------+---------------+-----------------+ Table 7: Link Attribute TLVs 3.3.1. Node Attribute TLVs Node attribute TLVs are the TLVs that may be encoded in the BGP-LS attribute with a node NLRI. The following node attribute TLVs are defined: Gredler, et al. Expires May 22, 2014 [Page 18] Internet-Draft Link-State Info Distribution using BGP November 2013 +-----------+----------------------+------------+-------------------+ | TLV Code | Description | Length | Value defined in: | | Point | | | | +-----------+----------------------+------------+-------------------+ | 263 | Multi-Topology | variable | Section 3.2.1.5 | | | Identifier | | | | 1024 | Node Flag Bits | 1 | Section 3.3.1.1 | | 1025 | Opaque Node | variable | Section 3.3.1.5 | | | Properties | | | | 1026 | Node Name | variable | Section 3.3.1.3 | | 1027 | IS-IS Area | variable | Section 3.3.1.2 | | | Identifier | | | | 1028 | IPv4 Router-ID of | 4 | [RFC5305]/4.3 | | | Local Node | | | | 1029 | IPv6 Router-ID of | 16 | [RFC6119]/4.1 | | | Local Node | | | +-----------+----------------------+------------+-------------------+ Table 5: Node Attribute TLVs 3.3.3. Prefix Attribute TLVs Prefixes are learned from the IGP topology (IS-IS or OSPF) with a set of IGP attributes (such as metric, route tags, etc.) that MUST be reflected into the LINK_STATE attribute. This section describes the different attributes related to the IPv4/IPv6 prefixes. Prefix Attributes TLVs SHOULD be used when advertising NLRI types 3 and 4 only. The following attributes TLVs are defined: Gredler, et al. Expires May 22, 2014 [Page 25] Internet-Draft Link-State Info Distribution using BGP November 2013 +-------------+---------------------+--------------+----------------+ | TLV Code | Description | Length | Reference | | Point | | | | +-------------+---------------------+--------------+----------------+ | 1152 | IGP Flags | 1 | Section | | | | | 3.3.3.1 | | 1153 | Route Tag | 4*n | Section | | | | | 3.3.3.2 | | 1154 | Extended Tag | 8*n | Section | | | | | 3.3.3.3 | | 1155 | Prefix Metric | 4 | Section | | | | | 3.3.3.4 | | 1156 | OSPF Forwarding | 4 | Section | | | Address | | 3.3.3.5 | | 1157 | Opaque Prefix | variable | Section | | | Attribute | | 3.3.3.6 | +-------------+---------------------+--------------+----------------+ Table 9: Prefix Attribute TLVs

Author:

pac

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
LinkStateAttribute()
LinkStateAttribute(byte[] bytes, int offset)

Method Summary

Modifier and Type	Method and Description
void	decode()
void	encode()
AdministrativeGroupLinkAttribTLV	getAdministrativeGroupTLV()
IS_IS_AreaIdentifierNodeAttribTLV	getAreaIDTLV()
AvailableLabels	getAvailableLabels()
IGPFlagBitsPrefixAttribTLV	getIgpFlagBitsTLV()
IPv4RouterIDLocalNodeLinkAttribTLV	getIPv4RouterIDLocalNodeLATLV()
IPv4RouterIDLocalNodeNodeAttribTLV	getIPv4RouterIDLocalNodeNATLV()
IPv4RouterIDRemoteNodeLinkAttribTLV	getIPv4RouterIDRemoteNodeLATLV()
LinkProtectionTypeLinkAttribTLV	getLinkProtectionTLV()
MaximumLinkBandwidthLinkAttribTLV	getMaximumLinkBandwidthTLV()
MaxReservableBandwidthLinkAttribTLV	getMaxReservableBandwidthTLV()
MetricLinkAttribTLV	getMetricTLV()
MF_OTPAttribTLV	getMF_OTP()
NodeFlagBitsNodeAttribTLV	getNodeFlagBitsTLV()
NodeNameNodeAttribTLV	getNodeNameTLV()
OSPFForwardingAddressPrefixAttribTLV	getOSPFForwardingAddrTLV()
PrefixMetricPrefixAttribTLV	getPrefixMetricTLV()
RouteTagPrefixAttribTLV	getRouteTagTLV()
SharedRiskLinkGroupAttribTLV	getSharedRiskLinkGroup()
SidLabelNodeAttribTLV	getSidLabelTLV()
DefaultTEMetricLinkAttribTLV	getTEMetricTLV()
TransceiverClassAndAppAttribTLV	getTransceiverClassAndApp()
UnreservedBandwidthLinkAttribTLV	getUnreservedBandwidthTLV()
void	setAdministrativeGroupTLV(AdministrativeGroupLinkAttribTLV administrativeGroupTLV)
void	setAreaIDTLV(IS_IS_AreaIdentifierNodeAttribTLV areaIDTLV)
void	setAvailableLabels(AvailableLabels availableLabels)
void	setIgpFlagBitsTLV(IGPFlagBitsPrefixAttribTLV igpFlagBitsTLV)
void	setIPv4RouterIDLocalNodeLATLV(IPv4RouterIDLocalNodeLinkAttribTLV iPv4RouterIDLocalNodeLATLV)
void	setIPv4RouterIDLocalNodeNATLV(IPv4RouterIDLocalNodeNodeAttribTLV iPv4RouterIDLocalNodeNATLV)
void	setIPv4RouterIDRemoteNodeLATLV(IPv4RouterIDRemoteNodeLinkAttribTLV iPv4RouterIDRemoteNodeLATLV)
void	setLinkProtectionTLV(LinkProtectionTypeLinkAttribTLV linkProtectionTLV)
void	setMaximumLinkBandwidthTLV(MaximumLinkBandwidthLinkAttribTLV maximumLinkBandwidthTLV)
void	setMaxReservableBandwidthTLV(MaxReservableBandwidthLinkAttribTLV maxReservableBandwidthTLV)
void	setMetricTLV(MetricLinkAttribTLV metricTLV)
void	setMF_OTPAttribTLV(MF_OTPAttribTLV MF_OTP_ATLV)
void	setNodeFlagBitsTLV(NodeFlagBitsNodeAttribTLV nodeFlagBitsTLV)
void	setNodeNameTLV(NodeNameNodeAttribTLV nodeNameTLV)
void	setOSPFForwardingAddrTLV(OSPFForwardingAddressPrefixAttribTLV oSPFForwardingAddrTLV)
void	setPrefixMetricTLV(PrefixMetricPrefixAttribTLV prefixMetricTLV)
void	setRouteTagTLV(RouteTagPrefixAttribTLV routeTagTLV)
void	setSharedRiskLinkGroupTLV(SharedRiskLinkGroupAttribTLV SharedRiskLinkGroupATLV)
void	setSidLabelTLV(SidLabelNodeAttribTLV sidLabelTLV)
void	setTEMetricTLV(DefaultTEMetricLinkAttribTLV tEMetricTLV)
void	setTransceiverClassAndAppTLV(TransceiverClassAndAppAttribTLV TransceiverClassAndAppATLV)
void	setUnreservedBandwidthTLV(UnreservedBandwidthLinkAttribTLV unreservedBandwidthTLV)
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

LinkStateAttribute

public LinkStateAttribute()

LinkStateAttribute

public LinkStateAttribute(byte[] bytes,
                          int offset)

Method Detail

encode

public void encode()

decode

public void decode()

getIgpFlagBitsTLV

public IGPFlagBitsPrefixAttribTLV getIgpFlagBitsTLV()

setIgpFlagBitsTLV

public void setIgpFlagBitsTLV(IGPFlagBitsPrefixAttribTLV igpFlagBitsTLV)

getRouteTagTLV

public RouteTagPrefixAttribTLV getRouteTagTLV()

setRouteTagTLV

public void setRouteTagTLV(RouteTagPrefixAttribTLV routeTagTLV)

getPrefixMetricTLV

public PrefixMetricPrefixAttribTLV getPrefixMetricTLV()

setPrefixMetricTLV

public void setPrefixMetricTLV(PrefixMetricPrefixAttribTLV prefixMetricTLV)

getOSPFForwardingAddrTLV

public OSPFForwardingAddressPrefixAttribTLV getOSPFForwardingAddrTLV()

setOSPFForwardingAddrTLV

public void setOSPFForwardingAddrTLV(OSPFForwardingAddressPrefixAttribTLV oSPFForwardingAddrTLV)

getMaximumLinkBandwidthTLV

public MaximumLinkBandwidthLinkAttribTLV getMaximumLinkBandwidthTLV()

setMaximumLinkBandwidthTLV

public void setMaximumLinkBandwidthTLV(MaximumLinkBandwidthLinkAttribTLV maximumLinkBandwidthTLV)

getMaxReservableBandwidthTLV

public MaxReservableBandwidthLinkAttribTLV getMaxReservableBandwidthTLV()

setMaxReservableBandwidthTLV

public void setMaxReservableBandwidthTLV(MaxReservableBandwidthLinkAttribTLV maxReservableBandwidthTLV)

getUnreservedBandwidthTLV

public UnreservedBandwidthLinkAttribTLV getUnreservedBandwidthTLV()

setUnreservedBandwidthTLV

public void setUnreservedBandwidthTLV(UnreservedBandwidthLinkAttribTLV unreservedBandwidthTLV)

getMetricTLV

public MetricLinkAttribTLV getMetricTLV()

setMetricTLV

public void setMetricTLV(MetricLinkAttribTLV metricTLV)

getAdministrativeGroupTLV

public AdministrativeGroupLinkAttribTLV getAdministrativeGroupTLV()

setAdministrativeGroupTLV

public void setAdministrativeGroupTLV(AdministrativeGroupLinkAttribTLV administrativeGroupTLV)

getLinkProtectionTLV

public LinkProtectionTypeLinkAttribTLV getLinkProtectionTLV()

setLinkProtectionTLV

public void setLinkProtectionTLV(LinkProtectionTypeLinkAttribTLV linkProtectionTLV)

getIPv4RouterIDLocalNodeLATLV

public IPv4RouterIDLocalNodeLinkAttribTLV getIPv4RouterIDLocalNodeLATLV()

setIPv4RouterIDLocalNodeLATLV

public void setIPv4RouterIDLocalNodeLATLV(IPv4RouterIDLocalNodeLinkAttribTLV iPv4RouterIDLocalNodeLATLV)

getIPv4RouterIDRemoteNodeLATLV

public IPv4RouterIDRemoteNodeLinkAttribTLV getIPv4RouterIDRemoteNodeLATLV()

setIPv4RouterIDRemoteNodeLATLV

public void setIPv4RouterIDRemoteNodeLATLV(IPv4RouterIDRemoteNodeLinkAttribTLV iPv4RouterIDRemoteNodeLATLV)

getTEMetricTLV

public DefaultTEMetricLinkAttribTLV getTEMetricTLV()

setTEMetricTLV

public void setTEMetricTLV(DefaultTEMetricLinkAttribTLV tEMetricTLV)

getSharedRiskLinkGroup

public SharedRiskLinkGroupAttribTLV getSharedRiskLinkGroup()

setSharedRiskLinkGroupTLV

public void setSharedRiskLinkGroupTLV(SharedRiskLinkGroupAttribTLV SharedRiskLinkGroupATLV)

getTransceiverClassAndApp

public TransceiverClassAndAppAttribTLV getTransceiverClassAndApp()

setTransceiverClassAndAppTLV

public void setTransceiverClassAndAppTLV(TransceiverClassAndAppAttribTLV TransceiverClassAndAppATLV)

getMF_OTP

public MF_OTPAttribTLV getMF_OTP()

setMF_OTPAttribTLV

public void setMF_OTPAttribTLV(MF_OTPAttribTLV MF_OTP_ATLV)

getNodeFlagBitsTLV

public NodeFlagBitsNodeAttribTLV getNodeFlagBitsTLV()

setNodeFlagBitsTLV

public void setNodeFlagBitsTLV(NodeFlagBitsNodeAttribTLV nodeFlagBitsTLV)

getSidLabelTLV

public SidLabelNodeAttribTLV getSidLabelTLV()

setSidLabelTLV

public void setSidLabelTLV(SidLabelNodeAttribTLV sidLabelTLV)

getNodeNameTLV

public NodeNameNodeAttribTLV getNodeNameTLV()

setNodeNameTLV

public void setNodeNameTLV(NodeNameNodeAttribTLV nodeNameTLV)

getAreaIDTLV

public IS_IS_AreaIdentifierNodeAttribTLV getAreaIDTLV()

setAreaIDTLV

public void setAreaIDTLV(IS_IS_AreaIdentifierNodeAttribTLV areaIDTLV)

getIPv4RouterIDLocalNodeNATLV

public IPv4RouterIDLocalNodeNodeAttribTLV getIPv4RouterIDLocalNodeNATLV()

setIPv4RouterIDLocalNodeNATLV

public void setIPv4RouterIDLocalNodeNATLV(IPv4RouterIDLocalNodeNodeAttribTLV iPv4RouterIDLocalNodeNATLV)

getAvailableLabels

public AvailableLabels getAvailableLabels()

setAvailableLabels

public void setAvailableLabels(AvailableLabels availableLabels)

toString

public String toString()

Overrides:

toString in class Object