Package org.opendaylight.protocol.bgp.linkstate.impl.tlvs

Class ReachTlvParser

java.lang.Object

org.opendaylight.protocol.bgp.linkstate.impl.tlvs.ReachTlvParser

All Implemented Interfaces:

LinkstateTlvParser<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>, LinkstateTlvParser.LinkstateTlvSerializer<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>

public final class ReachTlvParser
extends Object
implements LinkstateTlvParser.LinkstateTlvSerializer<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>, LinkstateTlvParser<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>

Nested Class Summary

Nested classes/interfaces inherited from interface org.opendaylight.protocol.bgp.linkstate.spi.LinkstateTlvParser

LinkstateTlvParser.LinkstateTlvSerializer<T>

Field Summary

Fields

Modifier and Type	Field	Description
static org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier	IP_REACH_NID
static org.opendaylight.yangtools.yang.common.QName	IP_REACHABILITY_QNAME

Constructor Summary

Constructors

Constructor	Description
ReachTlvParser()

Method Summary

Modifier and Type	Method	Description
org.opendaylight.yangtools.yang.common.QName	getTlvQName()
int	getType()
org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix	parseTlvBody(io.netty.buffer.ByteBuf value)
static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix	serializeModel(org.opendaylight.yangtools.yang.data.api.schema.ContainerNode prefixDesc)
void	serializeTlvBody(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix tlv, io.netty.buffer.ByteBuf body)

Methods inherited from class java.lang.Object

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

Field Detail

IP_REACHABILITY_QNAME

public static final org.opendaylight.yangtools.yang.common.QName IP_REACHABILITY_QNAME

IP_REACH_NID

public static final org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier IP_REACH_NID

Constructor Detail

ReachTlvParser

public ReachTlvParser()

Method Detail

parseTlvBody

public org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix parseTlvBody(io.netty.buffer.ByteBuf value)

IP Reachability TLV serves to convey both an IPV4 or an IPV6 prefix as per RFC7752 Section 3.2.3.2. However, the Length of the IP Reachability TLV could not be used to distinguish the two types of prefixes as it will be the same: for example byteBuffer == [24][192][168][01] could be parsed as IPv4 prefix 192.168.1.0/24 or as IPv6 prefix c0a8:100::/24.

Thus, we could just verify if the length is greater than 4 bytes. In this case, it is certain that the prefix is IPv6. For a length less than or equal to 4 bytes, the parser assumes that the prefix is IPv4. In addition, the probability that an IS-IS domain advertises an IPv6 prefix with a length lower than /32 is very low.

Specified by:

parseTlvBody in interface LinkstateTlvParser<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>

getTlvQName

public org.opendaylight.yangtools.yang.common.QName getTlvQName()

Specified by:

getTlvQName in interface LinkstateTlvParser<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>

serializeTlvBody

public void serializeTlvBody(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix tlv,
                             io.netty.buffer.ByteBuf body)

Specified by:

serializeTlvBody in interface LinkstateTlvParser.LinkstateTlvSerializer<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>

getType

public int getType()

Specified by:

getType in interface LinkstateTlvParser.LinkstateTlvSerializer<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix>

serializeModel

public static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix serializeModel(org.opendaylight.yangtools.yang.data.api.schema.ContainerNode prefixDesc)