RFC 6779
Definition of Managed Objects for the Neighborhood Discovery Protocol
nhdpNibNeighborSetEntry OBJECT-TYPE
SYNTAX NhdpNibNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Neighbor Set consists
of Neighbor Tuples, each representing
a single 1-hop neighbor:
(N_neighbor_addr_list, N_symmetric)"
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpNibNeighborSetTable 1 }
NhdpNibNeighborSetEntry ::=
SEQUENCE {
nhdpNibNeighborSetNSymmetric
TruthValue
}
nhdpNibNeighborSetNSymmetric OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpNibNeighborNSymmetric corresponds
to N_symmetric of NHDP and is a boolean flag,
describing if this is a symmetric 1-hop neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpNibNeighborSetEntry 1 }
--
-- Lost Neighbor Set
--
nhdpNibLostNeighborSetTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpNibLostNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Lost Neighbor Set records network
addresses of routers that were recently
symmetric 1-hop neighbors but are now
advertised as lost."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpStateObjGrp 7 }
nhdpNibLostNeighborSetEntry OBJECT-TYPE
SYNTAX NhdpNibLostNeighborSetEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's Lost Neighbor Set consists of
Lost Neighbor Tuples, each representing a
single such network address:
(NL_neighbor_addr, NL_time)"
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpNibLostNeighborSetTable 1 }
NhdpNibLostNeighborSetEntry ::=
SEQUENCE {
nhdpNibLostNeighborSetNLTime
TimeStamp
}
nhdpNibLostNeighborSetNLTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"nhdpNibLostNeighborSetNLTime
specifies the value of sysUptime when this entry
should expire and be removed from the
nhdpNibLostNeighborSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpNibLostNeighborSetEntry 1 }
--
-- nhdpPerformanceObjGrp
--
-- Contains objects that help to characterize the performance of
-- the NHDP process, typically counters.
--
nhdpPerformanceObjGrp OBJECT IDENTIFIER ::= { nhdpObjects 3 }
--
-- Objects per local interface
--
nhdpInterfacePerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpInterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table summarizes performance objects that are
measured per local NHDP interface."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 1 }
nhdpInterfacePerfEntry OBJECT-TYPE
SYNTAX NhdpInterfacePerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A single entry contains performance counters for
a local NHDP interface."
INDEX { nhdpIfIndex }
::= { nhdpInterfacePerfTable 1 }
NhdpInterfacePerfEntry ::=
SEQUENCE {
nhdpIfHelloMessageXmits
Counter32,
nhdpIfHelloMessageRecvd
Counter32,
nhdpIfHelloMessageXmitAccumulatedSize
Counter64,
nhdpIfHelloMessageRecvdAccumulatedSize
Counter64,
nhdpIfHelloMessageTriggeredXmits
Counter32,
nhdpIfHelloMessagePeriodicXmits
Counter32,
nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount
Counter32,
nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount
Counter32,
nhdpIfHelloMessageXmitAccumulatedLostNeighborCount
Counter32
}
nhdpIfHelloMessageXmits OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a HELLO
message has been transmitted on that interface."
::= { nhdpInterfacePerfEntry 1 }
nhdpIfHelloMessageRecvd OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a
HELLO message has been received on that interface."
::= { nhdpInterfacePerfEntry 2 }
nhdpIfHelloMessageXmitAccumulatedSize OBJECT-TYPE
SYNTAX Counter64
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of octets in
a HELLO message each time a
HELLO message has been sent."
::= { nhdpInterfacePerfEntry 3 }
nhdpIfHelloMessageRecvdAccumulatedSize OBJECT-TYPE
SYNTAX Counter64
UNITS "octets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of octets in
a HELLO message each time a
HELLO message has been received."
::= { nhdpInterfacePerfEntry 4 }
nhdpIfHelloMessageTriggeredXmits OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a triggered
HELLO message has been sent."
::= { nhdpInterfacePerfEntry 5 }
nhdpIfHelloMessagePeriodicXmits OBJECT-TYPE
SYNTAX Counter32
UNITS "messages"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented each time a periodic
HELLO message has been sent."
::= { nhdpInterfacePerfEntry 6 }
nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount OBJECT-TYPE
SYNTAX Counter32
UNITS "neighbors"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of advertised
symmetric neighbors in a HELLO each time a HELLO
message has been sent."
::= { nhdpInterfacePerfEntry 7 }
nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount OBJECT-TYPE
SYNTAX Counter32
UNITS "neighbors"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of advertised
heard neighbors in a HELLO each time a HELLO
message has been sent."
::= { nhdpInterfacePerfEntry 8 }
nhdpIfHelloMessageXmitAccumulatedLostNeighborCount OBJECT-TYPE
SYNTAX Counter32
UNITS "neighbors"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A counter is incremented by the number of advertised
lost neighbors in a HELLO each time a HELLO
message has been sent."
::= { nhdpInterfacePerfEntry 9 }
--
-- Objects per discovered neighbor interface
--
nhdpDiscIfSetPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpDiscIfSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's set of performance properties for
each discovered interface of a neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 2 }
nhdpDiscIfSetPerfEntry OBJECT-TYPE
SYNTAX NhdpDiscIfSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"There is an entry for each discovered
interface of a neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscIfIndex }
::= { nhdpDiscIfSetPerfTable 1 }
NhdpDiscIfSetPerfEntry ::=
SEQUENCE {
nhdpDiscIfRecvdPackets
Counter32,
nhdpDiscIfExpectedPackets
Counter32
}
nhdpDiscIfRecvdPackets OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This counter increments each
time this router receives a packet from that interface
of the neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetPerfEntry 1 }
nhdpDiscIfExpectedPackets OBJECT-TYPE
SYNTAX Counter32
UNITS "packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This counter increments by the number
of missed packets from this neighbor based
on the packet sequence number each time this
router receives a packet from that interface
of the neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscIfSetPerfEntry 2 }
--
-- Objects concerning the Neighbor Set
--
nhdpNibNeighborSetChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This counter increments each time the Neighbor Set changes.
A change occurs whenever a new Neighbor Tuple has been
added, a Neighbor Tuple has been removed, or any entry of
a Neighbor Tuple has been modified."
::= { nhdpPerformanceObjGrp 3 }
--
-- Objects per discovered neighbor
--
nhdpDiscNeighborSetPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpDiscNeighborSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A router's set of discovered neighbors and
their properties."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 4 }
nhdpDiscNeighborSetPerfEntry OBJECT-TYPE
SYNTAX NhdpDiscNeighborSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The entries include the nhdpDiscRouterIndex of
the discovered router as well as performance
objects related to changes of the Neighbor
Set."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpDiscNeighborSetPerfTable 1 }
NhdpDiscNeighborSetPerfEntry ::=
SEQUENCE {
nhdpDiscNeighborNibNeighborSetChanges
Counter32,
nhdpDiscNeighborNibNeighborSetUpTime
TimeStamp,
nhdpDiscNeighborNibNeighborSetReachableLinkChanges
Counter32
}
nhdpDiscNeighborNibNeighborSetChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object returns the number of changes
to the given Neighbor Tuple."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscNeighborSetPerfEntry 1 }
nhdpDiscNeighborNibNeighborSetUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object returns the sysUpTime when
the neighbor becomes 'nbrup'. A neighbor is
said to become 'nbrup' if a new nhdpNibNeighborSetEntry
is created for a particular nhdpNibNeighborSetRouterIndex.
It becomes 'nbrdown' if the entry for that neighbor
has been deleted."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscNeighborSetPerfEntry 2 }
nhdpDiscNeighborNibNeighborSetReachableLinkChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts each time the neighbor changes
the interface(s) over which it is reachable.
A change in the set of Link Tuples corresponding
to the appropriate Neighbor Tuple is registered,
i.e., a corresponding Link Tuple is added or removed
from the set of all corresponding Link Tuples."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpDiscNeighborSetPerfEntry 3 }
--
-- Objects per discovered 2-hop neighbor
--
nhdpIib2HopSetPerfTable OBJECT-TYPE
SYNTAX SEQUENCE OF NhdpIib2HopSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains performance objects per
discovered 2-hop neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpPerformanceObjGrp 5 }
nhdpIib2HopSetPerfEntry OBJECT-TYPE
SYNTAX NhdpIib2HopSetPerfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The entries contain performance objects per
discovered 2-hop neighbor."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
INDEX { nhdpDiscRouterIndex }
::= { nhdpIib2HopSetPerfTable 1 }
NhdpIib2HopSetPerfEntry ::=
SEQUENCE {
nhdpIib2HopSetPerfChanges
Counter32,
nhdpIib2HopSetPerfUpTime
TimeStamp
}
nhdpIib2HopSetPerfChanges OBJECT-TYPE
SYNTAX Counter32
UNITS "changes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object counts the changes of the union of all
N2_neighbor_iface_addr_list of 2-Hop Tuples with an
N2_2hop_addr equal to one of the given 2-hop
neighbor's addresses."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetPerfEntry 1 }
nhdpIib2HopSetPerfUpTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object returns the sysUpTime
when the 2-Hop Tuple
corresponding to the given 2-hop neighbor IP address
was registered in the nhdpIib2HopSetTable."
REFERENCE
"RFC 6130 - Mobile Ad Hoc Network (MANET) Neighborhood
Discovery Protocol (NHDP), Clausen, T., Dearlove,
C., and J. Dean, April 2011"
::= { nhdpIib2HopSetPerfEntry 2 }
--
-- nhdpNotifications
--
nhdpNotificationsObjects OBJECT IDENTIFIER ::= { nhdpNotifications 0 }
nhdpNotificationsControl OBJECT IDENTIFIER ::= { nhdpNotifications 1 }
nhdpNotificationsStates OBJECT IDENTIFIER ::= { nhdpNotifications 2 }
-- nhdpNotificationsObjects
nhdpNbrStateChange NOTIFICATION-TYPE
OBJECTS { nhdpIfName, -- The originator of
-- the notification.
nhdpNbrState -- The new state
}
STATUS current
DESCRIPTION
"nhdpNbrStateChange is a notification sent when
more than nhdpNbrStateChangeThreshold neighbors change
their status (i.e., 'down(0)', 'asymmetric(1)', or
'symmetric(2)') within a time window of
nhdpNbrStateChangeWindow."
::= { nhdpNotificationsObjects 1 }
nhdp2HopNbrStateChange NOTIFICATION-TYPE
OBJECTS { nhdpIfName, -- The originator
-- of the notification
nhdp2HopNbrState -- The new state
}
STATUS current
DESCRIPTION
"nhdp2HopNbrStateChange is a notification sent
when more than nhdp2HopNbrStateChangeThreshold 2-hop
neighbors change their status (i.e., 'down(0)' or
'up(1)') within a time window of
nhdp2HopNbrStateChangeWindow."
::= { nhdpNotificationsObjects 2 }
nhdpIfStateChange NOTIFICATION-TYPE
OBJECTS { nhdpIfName, -- The local interface
nhdpIfStatus -- The new status
}
STATUS current
DESCRIPTION
"nhdpIfStateChange is a notification sent when
nhdpIfStatus has changed on this interface."
::= { nhdpNotificationsObjects 3 }
-- nhdpNotificationsControl
nhdpNbrStateChangeThreshold OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "changes"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A threshold value for the
nhdpNbrStateChange object. If the
number of occurrences exceeds this threshold
within the previous nhdpNbrStateChangeWindow,
then the nhdpNbrStateChange notification
is to be sent.
It is recommended that the value of this
threshold be set to at least 10 and higher
in dense topologies with frequent expected
topology changes."
DEFVAL { 10 }
::= { nhdpNotificationsControl 1 }
nhdpNbrStateChangeWindow OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A time window for the
nhdpNbrStateChange object. If the
number of occurrences exceeds the
nhdpNbrStateChangeThreshold
within the previous nhdpNbrStateChangeWindow,
then the nhdpNbrStateChange notification
is to be sent.
It is recommended that the value for this
window be set to at least 5 times the
nhdpHelloInterval.
This object represents the time in hundredths
of a second."
DEFVAL { 1000 }
::= { nhdpNotificationsControl 2 }
nhdp2HopNbrStateChangeThreshold OBJECT-TYPE
SYNTAX Integer32 (0..255)
UNITS "changes"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A threshold value for the
nhdp2HopNbrStateChange object. If the
number of occurrences exceeds this threshold
within the previous nhdp2HopNbrStateChangeWindow,
then the nhdp2HopNbrStateChange notification
is to be sent.
It is recommended that the value of this
threshold be set to at least 10 and higher
when topologies are expected to be highly dynamic."
DEFVAL { 10 }
::= { nhdpNotificationsControl 3 }
nhdp2HopNbrStateChangeWindow OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A time window for the
nhdp2HopNbrStateChange object. If the
number of occurrences exceeds the
nhdp2HopNbrStateChangeThreshold
within the previous nhdp2HopNbrStateChangeWindow,
then the nhdp2HopNbrStateChange notification
is to be sent.
It is recommended that the value for this
window be set to at least 5 times
nhdpHelloInterval.
This object represents the time in hundredths
of a second."
DEFVAL { 1000 }
::= { nhdpNotificationsControl 4 }
-- nhdpNotificationStates
nhdpNbrState OBJECT-TYPE
SYNTAX INTEGER {
down(0),
asymmetric(1),
symmetric(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"NHDP neighbor states. In NHDP, it is not
necessary to remove Protocol Tuples from Protocol Sets
at the exact time indicated, only to behave as if the
Protocol Tuples were removed at that time. This case is
indicated here as 'down(0)', all other cases being
indicated as 'asymmetric(1)' or 'symmetric(2)'. If 'down(0)',
the direct neighbor is also added to the
nhdpNibLostNeighborSetTable."
::= { nhdpNotificationsStates 1 }
nhdp2HopNbrState OBJECT-TYPE
SYNTAX INTEGER {
down(0),
up(1)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"NHDP 2-hop neighbor states. In NHDP, it is not
necessary to remove Protocol Tuples from Protocol Sets
at the exact time indicated, only to behave as if the
Protocol Tuples were removed at that time. This case is
indicated here as 'down(0)'; otherwise, it is 'up(1)'."
::= { nhdpNotificationsStates 2 }
--
-- nhdpConformance information
--
nhdpCompliances OBJECT IDENTIFIER ::= { nhdpConformance 1 }
nhdpMIBGroups OBJECT IDENTIFIER ::= { nhdpConformance 2 }
-- Compliance Statements
nhdpBasicCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The basic implementation requirements for
managed network entities that implement
NHDP."
MODULE -- this module
MANDATORY-GROUPS { nhdpConfigurationGroup }
::= { nhdpCompliances 1 }
nhdpFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The full implementation requirements for
managed network entities that implement
NHDP."
MODULE -- this module
MANDATORY-GROUPS { nhdpConfigurationGroup,
nhdpStateGroup,
nhdpNotificationObjectGroup,
nhdpNotificationGroup,
nhdpPerformanceGroup
}
::= { nhdpCompliances 2 }
--
-- Units of Conformance
--
nhdpConfigurationGroup OBJECT-GROUP
OBJECTS {
nhdpIfName,
nhdpIfStatus,
nhdpHelloInterval,
nhdpHelloMinInterval,
nhdpRefreshInterval,
nhdpLHoldTime,
nhdpHHoldTime,
nhdpHystAcceptQuality,
nhdpHystRejectQuality,
nhdpInitialQuality,
nhdpInitialPending,
nhdpHpMaxJitter,
nhdpHtMaxJitter,
nhdpNHoldTime,
nhdpIHoldTime,
nhdpIfRowStatus,
nhdpLibLocalIfSetIfIndex,
nhdpLibLocalIfSetIpAddrType,
nhdpLibLocalIfSetIpAddr,
nhdpLibLocalIfSetIpAddrPrefixLen,
nhdpLibLocalIfSetRowStatus,
nhdpLibRemovedIfAddrSetIpAddrType,
nhdpLibRemovedIfAddrSetIpAddr,
nhdpLibRemovedIfAddrSetIpAddrPrefixLen,
nhdpLibRemovedIfAddrSetIfIndex,
nhdpLibRemovedIfAddrSetIRTime
}
STATUS current
DESCRIPTION
"Set of NHDP configuration objects implemented
in this module."
::= { nhdpMIBGroups 2 }
nhdpStateGroup OBJECT-GROUP
OBJECTS {
nhdpUpTime,
nhdpIfStateUpTime,
nhdpDiscRouterIndex,
nhdpDiscIfIndex,
nhdpDiscIfSetIpAddrType,
nhdpDiscIfSetIpAddr,
nhdpDiscIfSetIpAddrPrefixLen,
nhdpIibLinkSetLHeardTime,
nhdpIibLinkSetLSymTime,
nhdpIibLinkSetLPending,
nhdpIibLinkSetLLost,
nhdpIibLinkSetLTime,
nhdpIib2HopSetIpAddrPrefixLen,
nhdpIib2HopSet1HopIfIndex,
nhdpIib2HopSetN2Time,
nhdpNibNeighborSetNSymmetric,
nhdpNibLostNeighborSetNLTime
}
STATUS current
DESCRIPTION
"Set of NHDP state objects implemented
in this module."
::= { nhdpMIBGroups 3 }
nhdpPerformanceGroup OBJECT-GROUP
OBJECTS {
nhdpIfHelloMessageXmits,
nhdpIfHelloMessageRecvd,
nhdpIfHelloMessageXmitAccumulatedSize,
nhdpIfHelloMessageRecvdAccumulatedSize,
nhdpIfHelloMessageTriggeredXmits,
nhdpIfHelloMessagePeriodicXmits,
nhdpIfHelloMessageXmitAccumulatedSymmetricNeighborCount,
nhdpIfHelloMessageXmitAccumulatedHeardNeighborCount,
nhdpIfHelloMessageXmitAccumulatedLostNeighborCount,
nhdpDiscIfRecvdPackets,
nhdpDiscIfExpectedPackets,
nhdpNibNeighborSetChanges,
nhdpDiscNeighborNibNeighborSetChanges,
nhdpDiscNeighborNibNeighborSetUpTime,
nhdpDiscNeighborNibNeighborSetReachableLinkChanges,
nhdpIib2HopSetPerfChanges,
nhdpIib2HopSetPerfUpTime
}
STATUS current
DESCRIPTION
"Set of NHDP performance objects implemented
in this module."
::= { nhdpMIBGroups 4 }
nhdpNotificationObjectGroup OBJECT-GROUP
OBJECTS {
nhdpNbrStateChangeThreshold,
nhdpNbrStateChangeWindow,
nhdp2HopNbrStateChangeThreshold,
nhdp2HopNbrStateChangeWindow,
nhdpNbrState,
nhdp2HopNbrState
}
STATUS current
DESCRIPTION
"Set of NHDP notification objects implemented
in this module."
::= { nhdpMIBGroups 5 }
nhdpNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS {
nhdpNbrStateChange,
nhdp2HopNbrStateChange,
nhdpIfStateChange
}
STATUS current
DESCRIPTION
"Set of NHDP notifications implemented
in this module."
::= { nhdpMIBGroups 6 }
END
8. Security Considerations
This MIB module defines objects for the configuration, monitoring, and notification of the Neighborhood Discovery Protocol [RFC6130]. NHDP allows routers to acquire topological information up to two hops away by virtue of exchanging HELLO messages. The information acquired by NHDP may be used by routing protocols. The neighborhood information, exchanged between routers using NHDP, serves these routing protocols as a baseline for calculating paths to all destinations in the MANET, relay set selection for network-wide transmissions, etc. There are a number of management objects defined in this MIB module with a MAX-ACCESS clause of read-write and/or read-create. Such objects may be considered sensitive or vulnerable in some network environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. These are the tables and objects and their sensitivity/vulnerability: o nhdpIfStatus - This writable object turns on or off the NHDP process for the specified interface. If disabled, higher-level protocol functions, e.g., routing, would fail, causing network- wide disruptions. o nhdpHelloInterval, nhdpHelloMinInterval, and nhdpRefreshInterval - These writable objects control the rate at which HELLO messages are sent on an interface. If set at too high a rate, this could represent a form of denial-of-service (DoS) attack by overloading interface resources. o nhdpHystAcceptQuality, nhdpHystRejectQuality, nhdpInitialQuality, and nhdpInitialPending - These writable objects affect the perceived quality of the NHDP links and hence the overall stability of the network. If improperly set, these settings could result in network-wide disruptions. o nhdpInterfaceTable - This table contains writable objects that affect the overall performance and stability of the NHDP process. Failure of the NHDP process would result in network-wide failure. Particularly sensitive objects from this table are discussed in the previous list items. This is the only table in the NHDP-MIB module with writable objects. Some of the readable objects in this MIB module (i.e., objects with a MAX-ACCESS other than not-accessible) may be considered sensitive or vulnerable in some network environments. It is thus important to control even GET and/or NOTIFY access to these objects and possibly
to even encrypt the values of these objects when sending them over
the network via SNMP. These are the tables and objects and their
sensitivity/vulnerability:
o nhdpDiscIfSetTable - The object contains information on discovered
neighbors, specifically their IP address in the
nhdpDiscIfSetIpAddr object. This information provides an
adversary broad information on the members of the MANET, located
within this single table. This information can be used to
expedite attacks on the other members of the MANET without having
to go through a laborious discovery process on their own. This
object is the index into the table and has a MAX-ACCESS of 'not-
accessible'. However, this information can be exposed using SNMP
operations.
MANET technology is often deployed to support communications of
emergency services or military tactical applications. In these
applications, it is imperative to maintain the proper operation of
the communications network and to protect sensitive information
related to its operation. Therefore, it is RECOMMENDED to provide
support for the Transport Security Model (TSM) [RFC5591] in
combination with TLS/DTLS [RFC6353].
SNMP versions prior to SNMPv3 did not include adequate security.
Even if the network itself is secure (for example by using IPsec),
there is no control as to who on the secure network is allowed to
access and GET/SET (read/change/create/delete) the objects in this
MIB module.
Implementations MUST provide the security features described by the
SNMPv3 framework (see [RFC3410]), including full support for
authentication and privacy via the User-based Security Model (USM)
[RFC3414] with the AES cipher algorithm [RFC3826]. Implementations
MAY also provide support for the Transport Security Model (TSM)
[RFC5591] in combination with a secure transport such as SSH
[RFC5592] or TLS/DTLS [RFC6353].
Further, deployment of SNMP versions prior to SNMPv3 is NOT
RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to
enable cryptographic security. It is then a customer/operator
responsibility to ensure that the SNMP entity giving access to an
instance of this MIB module is properly configured to give access to
the objects only to those principals (users) that have legitimate
rights to indeed GET or SET (change/create/delete) them.
9. Applicability Statement
This document describes objects for configuring parameters of the Neighborhood Discovery Protocol [RFC6130] process on a router. This MIB module, denoted NHDP-MIB, also reports state, performance information, and notifications. This section provides some examples of how this MIB module can be used in MANET network deployments. A fuller discussion of MANET network management use cases and challenges will be provided elsewhere. NHDP is designed to allow routers to automatically discover and track routers one hop remote (denoted "neighbors") and routers two hops remote (denoted "two-hop neighbors"). This information is used by other MANET protocols in operation on the router to perform routing, multicast forwarding, and other functions with ad hoc and mobile networks. In the following, three example scenarios are listed where this MIB module is useful: o For a Parking Lot Initial Configuration Situation - It is common for the vehicles comprising the MANET being forward deployed at a remote location, e.g., the site of a natural disaster, to be off- loaded in a parking lot where an initial configuration of the networking devices is performed. The configuration is loaded into the devices from a fixed location Network Operation Center (NOC) at the parking lot, and the vehicles are stationary at the parking lot while the configuration changes are made. Standards-based methods for configuration management from the co-located NOC are necessary for this deployment option. o For Mobile Vehicles with Low-Bandwidth Satellite Link to a Fixed NOC - Here, the vehicles carrying the MANET routers carry multiple wireless interfaces, one of which is a relatively low-bandwidth, on-the-move satellite connection that interconnects a fix NOC to the nodes of the MANET. Standards-based methods for monitoring and fault management from the fixed NOC are necessary for this deployment option. o For Fixed NOC and Mobile Local Manager in Larger Vehicles - for larger vehicles, a hierarchical network management arrangement is useful. Centralized network management is performed from a fixed NOC while local management is performed locally from within the vehicles. Standards-based methods for configuration, monitoring, and fault management are necessary for this deployment option.
10. IANA Considerations
The MIB module in this document uses the following IANA-assigned OBJECT IDENTIFIER value recorded in the SMI Numbers registry: Descriptor OBJECT IDENTIFIER value ---------- ----------------------- NHDP-MIB { mib-2 213 }11. Acknowledgements
The authors wish to thank Benoit Claise, Thomas Clausen, Justin Dean, Adrian Farrel, Joel Halpern, Al Morton, and Thomas Nadeau for their detailed reviews and insightful comments regarding this document. This MIB document uses the template authored by D. Harrington, which is based on contributions from the MIB Doctors, especially Juergen Schoenwaelder, Dave Perkins, C.M. Heard, and Randy Presuhn.12. References
12.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999. [RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, June 2000. [RFC3418] Presuhn, R., "Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)", STD 62, RFC 3418, December 2002.
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses", RFC 4001, February 2005. [RFC6130] Clausen, T., Dearlove, C., and J. Dean, "Mobile Ad Hoc Network (MANET) Neighborhood Discovery Protocol (NHDP)", RFC 6130, April 2011. [RFC6340] Presuhn, R., "Textual Conventions for the Representation of Floating-Point Numbers", RFC 6340, August 2011.12.2. Informative References
[REPORT-MIB] Cole, R., Macker, J., and A. Bierman, "Definition of Managed Objects for Performance Reporting", Work in Progress, January 2012. [RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet-Standard Management Framework", RFC 3410, December 2002. [RFC3414] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", STD 62, RFC 3414, December 2002. [RFC3826] Blumenthal, U., Maino, F., and K. McCloghrie, "The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-based Security Model", RFC 3826, June 2004. [RFC4750] Joyal, D., Galecki, P., Giacalone, S., Coltun, R., and F. Baker, "OSPF Version 2 Management Information Base", RFC 4750, December 2006. [RFC5148] Clausen, T., Dearlove, C., and B. Adamson, "Jitter Considerations in Mobile Ad Hoc Networks (MANETs)", RFC 5148, February 2008. [RFC5591] Harrington, D. and W. Hardaker, "Transport Security Model for the Simple Network Management Protocol (SNMP)", RFC 5591, June 2009. [RFC5592] Harrington, D., Salowey, J., and W. Hardaker, "Secure Shell Transport Model for the Simple Network Management Protocol (SNMP)", RFC 5592, June 2009.
[RFC6353] Hardaker, W., "Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)", RFC 6353, July 2011.Authors' Addresses
Ulrich Herberg LIX, Ecole Polytechnique 91128 Palaiseau Cedex France EMail: ulrich@herberg.name URI: http://www.herberg.name/ Robert G. Cole US Army CERDEC Space and Terrestrial Communications 6010 Frankford Road, Bldg 6010, Room 453H Aberdeen Proving Ground, Maryland 21005 United States Phone: +1 443 395-8744 EMail: robert.g.cole@us.army.mil URI: http://www.cs.jhu.edu/~rgcole/ Ian D Chakeres DRS CenGen 9250 Bendix Road North Columbia, Maryland 21045 United States EMail: ian.chakeres@gmail.com URI: http://www.ianchak.com/