es.tid.bgp.bgp4.update.fields

Class LinkNLRI

java.lang.Object

es.tid.bgp.bgp4.objects.BGP4Object

es.tid.bgp.bgp4.update.fields.NLRI

es.tid.bgp.bgp4.update.fields.LinkStateNLRI

es.tid.bgp.bgp4.update.fields.LinkNLRI

All Implemented Interfaces:

BGP4Element

public class LinkNLRI
extends LinkStateNLRI

The Link NLRI (NLRI Type = 2) is shown in the following figure. Gredler, et al. Expires May 22, 2014 [Page 9] Internet-Draft Link-State Info Distribution using BGP November 2013 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 +-+-+-+-+-+-+-+-+ | Protocol-ID | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Identifier | | (64 bits) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ // Local Node Descriptors (variable) // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ // Remote Node Descriptors (variable) // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ // Link Descriptors (variable) // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Figure 8: The Link NLRI format The 'Protocol-ID' field can contain one of the following values: Type = 0: Unknown, The source of NLRI information could not be determined Type = 1: IS-IS Level 1, The NLRI information has been sourced by IS-IS Level 1 Type = 2: IS-IS Level 2, The NLRI information has been sourced by IS-IS Level 2 Type = 3: OSPF, The NLRI information has been sourced by OSPF Type = 4: Direct, The NLRI information has been sourced from local interface state Type = 5: Static, The NLRI information has been sourced by static configuration 3.2.2. Link Descriptors The 'Link Descriptor' field is a set of Type/Length/Value (TLV) triplets. The format of each TLV is shown in Section 3.1. The 'Link descriptor' TLVs uniquely identify a link between a pair of anchor Routers. A link described by the Link descriptor TLVs actually is a "half-link", a unidirectional representation of a logical link. In order to fully describe a single logical link two originating routers need to advertise a half-link each, i.e. two link NLRIs will be advertised. The format and semantics of the 'value' fields in most 'Link Descriptor' TLVs correspond to the format and semantics of value fields in IS-IS Extended IS Reachability sub-TLVs, defined in [RFC5305], [RFC5307] and [RFC6119]. Although the encodings for 'Link Descriptor' TLVs were originally defined for IS-IS, the TLVs can carry data sourced either by IS-IS or OSPF. +------------+--------------------+---------------+-----------------+ | TLV Code | Description | IS-IS TLV | Value defined | | Point | | /Sub-TLV | in: | +------------+--------------------+---------------+-----------------+ | 258 | Link Local/Remote | 22/4 | [RFC5307]/1.1 | | | Identifiers | | | | 259 | IPv4 interface | 22/6 | [RFC5305]/3.2 | | | address | | | | 260 | IPv4 neighbor | 22/8 | [RFC5305]/3.3 | | | address | | | | 261 | IPv6 interface | 22/12 | [RFC6119]/4.2 | | | address | | | | 262 | IPv6 neighbor | 22/13 | [RFC6119]/4.3 | | | address | | | | 263 | Multi-Topology | --- | Section 3.2.1.5 | | | Identifier | | | +------------+--------------------+---------------+-----------------+ Table 3: Link Descriptor TLVs

Author:

pac

Field Summary

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

log, NLRIType, TotalNLRILength

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

bytes, length

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	decode()
void	encode()
long	getIdentifier()
IPv4InterfaceAddressLinkDescriptorsSubTLV	getIpv4InterfaceAddressTLV()
IPv4NeighborAddressLinkDescriptorSubTLV	getIpv4NeighborAddressTLV()
IPv6InterfaceAddressLinkDescriptorSubTLV	getIpv6InterfaceAddressTLV()
IPv6NeighborAddressLinkDescriptorSubTLV	getIpv6NeighborAddressTLV()
LinkLocalRemoteIdentifiersLinkDescriptorSubTLV	getLinkIdentifiersTLV()
LocalNodeDescriptorsTLV	getLocalNodeDescriptors()
MultiTopologyIDLinkDescriptorSubTLV	getMultiTopologyIDTLV()
int	getProtocolID()
RemoteNodeDescriptorsTLV	getRemoteNodeDescriptorsTLV()
void	setIdentifier(long identifier)
void	setIpv4InterfaceAddressTLV(IPv4InterfaceAddressLinkDescriptorsSubTLV ipv4InterfaceAddressTLV)
void	setIpv4NeighborAddressTLV(IPv4NeighborAddressLinkDescriptorSubTLV ipv4NeighborAddressTLV)
void	setIpv6InterfaceAddressTLV(IPv6InterfaceAddressLinkDescriptorSubTLV ipv6InterfaceAddressTLV)
void	setIpv6NeighborAddressTLV(IPv6NeighborAddressLinkDescriptorSubTLV ipv6NeighborAddressTLV)
void	setLinkIdentifiersTLV(LinkLocalRemoteIdentifiersLinkDescriptorSubTLV linkIdentifiersTLV)
void	setLocalNodeDescriptors(LocalNodeDescriptorsTLV localNodeDescriptors)
void	setMultiTopologyIDTLV(MultiTopologyIDLinkDescriptorSubTLV multiTopologyIDTLV)
void	setProtocolID(int protocolID)
void	setRemoteNodeDescriptorsTLV(RemoteNodeDescriptorsTLV remoteNodeDescriptorsTLV)
String	toString()

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

encodeHeader, equals, getNLRILength, getNLRIType, getNLRIType, getTotalNLRILength, getTotalTLVLength, getType, hashCode, setNLRIType, setTotalNLRILength

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

LinkNLRI

public LinkNLRI()

LinkNLRI

public LinkNLRI(byte[] bytes,
                int offset)

Method Detail

encode

public void encode()

Specified by:

encode in interface BGP4Element

Specified by:

encode in class LinkStateNLRI

decode

public void decode()

getProtocolID

public int getProtocolID()

setProtocolID

public void setProtocolID(int protocolID)

getIdentifier

public long getIdentifier()

setIdentifier

public void setIdentifier(long identifier)

getLocalNodeDescriptors

public LocalNodeDescriptorsTLV getLocalNodeDescriptors()

setLocalNodeDescriptors

public void setLocalNodeDescriptors(LocalNodeDescriptorsTLV localNodeDescriptors)

getRemoteNodeDescriptorsTLV

public RemoteNodeDescriptorsTLV getRemoteNodeDescriptorsTLV()

setRemoteNodeDescriptorsTLV

public void setRemoteNodeDescriptorsTLV(RemoteNodeDescriptorsTLV remoteNodeDescriptorsTLV)

getLinkIdentifiersTLV

public LinkLocalRemoteIdentifiersLinkDescriptorSubTLV getLinkIdentifiersTLV()

setLinkIdentifiersTLV

public void setLinkIdentifiersTLV(LinkLocalRemoteIdentifiersLinkDescriptorSubTLV linkIdentifiersTLV)

getIpv4InterfaceAddressTLV

public IPv4InterfaceAddressLinkDescriptorsSubTLV getIpv4InterfaceAddressTLV()

setIpv4InterfaceAddressTLV

public void setIpv4InterfaceAddressTLV(IPv4InterfaceAddressLinkDescriptorsSubTLV ipv4InterfaceAddressTLV)

getIpv4NeighborAddressTLV

public IPv4NeighborAddressLinkDescriptorSubTLV getIpv4NeighborAddressTLV()

setIpv4NeighborAddressTLV

public void setIpv4NeighborAddressTLV(IPv4NeighborAddressLinkDescriptorSubTLV ipv4NeighborAddressTLV)

getIpv6InterfaceAddressTLV

public IPv6InterfaceAddressLinkDescriptorSubTLV getIpv6InterfaceAddressTLV()

setIpv6InterfaceAddressTLV

public void setIpv6InterfaceAddressTLV(IPv6InterfaceAddressLinkDescriptorSubTLV ipv6InterfaceAddressTLV)

getIpv6NeighborAddressTLV

public IPv6NeighborAddressLinkDescriptorSubTLV getIpv6NeighborAddressTLV()

setIpv6NeighborAddressTLV

public void setIpv6NeighborAddressTLV(IPv6NeighborAddressLinkDescriptorSubTLV ipv6NeighborAddressTLV)

getMultiTopologyIDTLV

public MultiTopologyIDLinkDescriptorSubTLV getMultiTopologyIDTLV()

setMultiTopologyIDTLV

public void setMultiTopologyIDTLV(MultiTopologyIDLinkDescriptorSubTLV multiTopologyIDTLV)

toString

public String toString()

Overrides:

toString in class Object