HM2-PLATFORM-DVMRP-MIB

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Organization: Hirschmann Automation and Control GmbH

Last Updated: 2013-07-26

Category: Protocol: DVMRP, Routing Protocols, Technology: Multicast, Vendor: Belden

Description: Hirschmann HiOS (HM2) DVMRP MIB for Distance Vector Multicast Routing Protocol configuration and state.

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What Is HM2-PLATFORM-DVMRP-MIB?

HM2-PLATFORM-DVMRP-MIB is a Hirschmann private MIB, part of the HiOS Platform2 family, that models DVMRP (Distance Vector Multicast Routing Protocol) state on Hirschmann industrial Ethernet switches. It exposes protocol-level data such as DVMRP version and generation ID, aggregate route counts, and a per-interface table of metrics, status, and error counters. Monitoring here is squarely about software/protocol health rather than physical hardware: route counts and bad-packet/bad-route counters reveal whether multicast routing is functioning correctly on each interface. It builds on general DVMRP/multicast-routing concepts and is expected to be used alongside IF-MIB for interface indexing. It is deployed on Hirschmann managed switches in industrial networks (rail, energy, factory automation) that run multicast routing. Engineers can download the HM2-PLATFORM-DVMRP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HM2-PLATFORM-DVMRP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Hirschmann industrial Ethernet switch

Monitoring Examples

An administrator polls hm2AgentDvmrpNumRoutes and hm2AgentDvmrpReachableRoutes over time; a sudden drop in reachable routes signals loss of upstream multicast connectivity. Per-interface rows in hm2AgentDvmrpInterfaceTable/Entry, keyed by hm2AgentDvmrpInterfaceIfIndex, expose hm2AgentDvmrpInterfaceMetric and hm2AgentDvmrpInterfaceStatus; a rising hm2AgentDvmrpInterfaceRcvBadPkts or hm2AgentDvmrpInterfaceRcvBadRoutes count flags a misbehaving DVMRP neighbor sending malformed packets. A change in hm2AgentDvmrpGenerationId indicates the DVMRP process itself restarted.

What Can Be Monitored

DVMRP route count
reachable routes
per-interface DVMRP status
interface DVMRP metric
bad packets received
bad routes received

Imported Objects

From HM2-PLATFORM-MULTICAST-MIB

hm2PlatformMulticast

MODULE-IDENTITY

From IF-MIB

InterfaceIndex
InterfaceIndexOrZero

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-SMI

Counter32
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

DisplayString
RowStatus

How to Use in IPNetwork Monitor

Example using hm2AgentDvmrpInterfaceRcvBadPkts OID:

Select a Hirschmann HiOS Platform2 industrial Ethernet switch (DVMRP multicast routing) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type hm2AgentDvmrpInterfaceRcvBadPkts into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of DVMRP messages received on the interface by the DVMRP process which were subsequently discarded as invalid (e.g. invalid packet format, or a route report from an unknown neighbor). On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
hm2AgentDvmrp	1.3.6.1.4.1.248.12.4.249			The Hirschmann Private Platform2 MIB for DVMRP. Copyright (C) 2013. All Rights Reserved.
hm2AgentDvmrpMIBNotifications	1.3.6.1.4.1.248.12.4.249.0
NTF hm2AgentDvmrpNeighborLoss	1.3.6.1.4.1.248.12.4.249.0.1			A hm2AgentDvmrpNeighborLoss trap signifies the loss of a 2-way adjacency with a neighbor. This trap should be generated when the neighbor state changes from active to one-way, ignoring, or down. The trap should be generated only if the router has no other neighbors on the same interface with a lower IP address than itself.
NTF hm2AgentDvmrpNeighborNotPruning	1.3.6.1.4.1.248.12.4.249.0.2			A hm2AgentDvmrpNeighborNotPruning trap signifies that a non-pruning neighbor has been detected (in an implementation-dependent manner). This trap should be generated at most once per generation ID of the neighbor. For example, it should be generated at the time a neighbor is first heard from if the prune bit is not set in its capabilities. It should also be generated if the local system has the ability to tell that a neighbor which sets the the prune bit in its capabilities is not pruning any branches over an extended period of time. The trap should be generated only if the router has no other neighbors on the same interface with a lower IP address than itself.
hm2AgentDvmrpMIBObjects	1.3.6.1.4.1.248.12.4.249.1
hm2AgentDvmrpGroup	1.3.6.1.4.1.248.12.4.249.1.1
hm2AgentDvmrpScalar	1.3.6.1.4.1.248.12.4.249.1.1.1
STR hm2AgentDvmrpVersionString	1.3.6.1.4.1.248.12.4.249.1.1.1.1	DisplayString	read-only	The router's DVMRP version information. Similar to sysDescr in MIB-II, this is a free-form field which can be used to display vendor-specific information.
I32 hm2AgentDvmrpGenerationId	1.3.6.1.4.1.248.12.4.249.1.1.1.2	Integer32	read-only	The generation identifier for the routing process. This is used by neighboring routers to detect whether the DVMRP routing table should be resent.
G32 hm2AgentDvmrpNumRoutes	1.3.6.1.4.1.248.12.4.249.1.1.1.3	Gauge32	read-only	The number of entries in the routing table. This can be used to monitor the routing table size to detect illegal advertisements of unicast routes.
G32 hm2AgentDvmrpReachableRoutes	1.3.6.1.4.1.248.12.4.249.1.1.1.4	Gauge32	read-only	The number of entries in the routing table with non infinite metrics. This can be used to detect network partitions by observing the ratio of reachable routes to total routes.
hm2AgentDvmrpInterfaceTable	1.3.6.1.4.1.248.12.4.249.1.1.2		not-accessible	The (conceptual) table listing the router's multicast- capable interfaces.
hm2AgentDvmrpInterfaceEntry	1.3.6.1.4.1.248.12.4.249.1.1.2.1		not-accessible	An entry (conceptual row) in the hm2AgentDvmrpInterfaceTable. This row augments ipMRouteInterfaceEntry in the IP Multicast MIB, where the threshold object resides.
NUM hm2AgentDvmrpInterfaceIfIndex	1.3.6.1.4.1.248.12.4.249.1.1.2.1.1	InterfaceIndex	not-accessible	The ifIndex value of the interface for which DVMRP is enabled.
IP hm2AgentDvmrpInterfaceLocalAddress	1.3.6.1.4.1.248.12.4.249.1.1.2.1.2	IpAddress	read-only	The IP address this system will use as a source address on this interface. On unnumbered interfaces, it must be the same value as hm2AgentDvmrpInterfaceLocalAddress for some interface on the system.
I32 hm2AgentDvmrpInterfaceMetric	1.3.6.1.4.1.248.12.4.249.1.1.2.1.3	Integer32	read-create	The distance metric for this interface which is used to calculate distance vectors.
ROW hm2AgentDvmrpInterfaceStatus	1.3.6.1.4.1.248.12.4.249.1.1.2.1.4	RowStatus	read-create	The status of this entry. Creating the entry enables DVMRP on the virtual interface; destroying the entry or setting it to notInService disables DVMRP on the virtual interface.
C32 hm2AgentDvmrpInterfaceRcvBadPktsEx	1.3.6.1.4.1.248.12.4.249.1.1.2.1.5	Counter32	read-only	The number of DVMRP messages received on the interface by the DVMRP process which were subsequently discarded as invalid (e.g. invalid packet format, or a route report from an unknown neighbor).
C32 hm2AgentDvmrpInterfaceRcvBadRoutes	1.3.6.1.4.1.248.12.4.249.1.1.2.1.6	Counter32	read-only	The number of routes, in valid hm2AgentDvmrpGroup packets, which were ignored because the entry was invalid.
C32 hm2AgentDvmrpInterfaceSentRoutes	1.3.6.1.4.1.248.12.4.249.1.1.2.1.7	Counter32	read-only	The number of routes, in DVMRP Report packets, which have been sent on this interface. Together with hm2AgentDvmrpNeighborRcvRoutes at a peer, this object is useful for detecting routes being lost.
STR hm2AgentDvmrpInterfaceInterfaceKey	1.3.6.1.4.1.248.12.4.249.1.1.2.1.8	SnmpAdminString	read-create	The (shared) key for authenticating neighbors on this interface. This object is intended solely for the purpose of setting the interface key, and MUST be accessible only via requests using both authentication and privacy. The agent MAY report an empty string in response to get, get- next, get-bulk requests.
I32 hm2AgentDvmrpInterfaceInterfaceKeyVersion	1.3.6.1.4.1.248.12.4.249.1.1.2.1.9	Integer32	read-create	The highest version number of all known interface keys for this interface used for authenticating neighbors.
I32 hm2AgentDvmrpInterfaceGenerationId	1.3.6.1.4.1.248.12.4.249.1.1.2.1.248	Integer32	read-only	The generation identifier for the routing process. This is used by neighboring routers to detect whether the DVMRP routing table should be resent.
hm2AgentDvmrpNeighborTable	1.3.6.1.4.1.248.12.4.249.1.1.3		not-accessible	The (conceptual) table listing the router's DVMRP neighbors, as discovered by receiving DVMRP messages.
hm2AgentDvmrpNeighborEntry	1.3.6.1.4.1.248.12.4.249.1.1.3.1		not-accessible	An entry (conceptual row) in the hm2AgentDvmrpNeighborTable.
NUM hm2AgentDvmrpNeighborIfIndex	1.3.6.1.4.1.248.12.4.249.1.1.3.1.1	InterfaceIndex	not-accessible	The value of ifIndex for the virtual interface used to reach this DVMRP neighbor.
IP hm2AgentDvmrpNeighborAddress	1.3.6.1.4.1.248.12.4.249.1.1.3.1.2	IpAddress	not-accessible	The IP address of the DVMRP neighbor for which this entry contains information.
TIK hm2AgentDvmrpNeighborUpTime	1.3.6.1.4.1.248.12.4.249.1.1.3.1.3	TimeTicks	read-only	The time since this DVMRP neighbor (last) became a neighbor of the local router.
TIK hm2AgentDvmrpNeighborExpiryTime	1.3.6.1.4.1.248.12.4.249.1.1.3.1.4	TimeTicks	read-only	The minimum time remaining before this DVMRP neighbor will be aged out.
I32 hm2AgentDvmrpNeighborGenerationId	1.3.6.1.4.1.248.12.4.249.1.1.3.1.5	Integer32	read-only	The neighboring router's generation identifier.
I32 hm2AgentDvmrpNeighborMajorVersion	1.3.6.1.4.1.248.12.4.249.1.1.3.1.6	Integer32	read-only	The neighboring router's major hm2AgentDvmrpGroup version number.
I32 hm2AgentDvmrpNeighborMinorVersion	1.3.6.1.4.1.248.12.4.249.1.1.3.1.7	Integer32	read-only	The neighboring router's minor DVMRP version number.
BIT hm2AgentDvmrpNeighborCapabilities	1.3.6.1.4.1.248.12.4.249.1.1.3.1.8	Bits	read-only	This object describes the neighboring router's capabilities. The leaf bit indicates that the neighbor has only one interface with neighbors. The prune bit indicates that the neighbor supports pruning. The generationID bit indicates that the neighbor sends its generationID in Probe messages. The mtrace bit indicates that the neighbor can handle mtrace requests.
C32 hm2AgentDvmrpNeighborRcvRoutes	1.3.6.1.4.1.248.12.4.249.1.1.3.1.9	Counter32	read-only	The total number of routes received in valid DVMRP packets received from this neighbor. This can be used to diagnose problems such as unicast route injection, as well as giving an indication of the level of DVMRP route exchange activity.
C32 hm2AgentDvmrpNeighborRcvBadPkts	1.3.6.1.4.1.248.12.4.249.1.1.3.1.10	Counter32	read-only	The number of packet received from this neighbor which were discarded as invalid.
C32 hm2AgentDvmrpNeighborRcvBadRoutes	1.3.6.1.4.1.248.12.4.249.1.1.3.1.11	Counter32	read-only	The number of routes, in valid DVMRP packets received from this neighbor, which were ignored because the entry was invalid.
INT hm2AgentDvmrpNeighborState	1.3.6.1.4.1.248.12.4.249.1.1.3.1.12	INTEGER	read-only	State of the neighbor adjacency.
hm2AgentDvmrpRouteTable	1.3.6.1.4.1.248.12.4.249.1.1.4		not-accessible	The table of routes learned through DVMRP route exchange.
hm2AgentDvmrpRouteEntry	1.3.6.1.4.1.248.12.4.249.1.1.4.1		not-accessible	An entry (conceptual row) containing the multicast routing information used by DVMRP in place of the unicast routing information.
IP hm2AgentDvmrpRouteSource	1.3.6.1.4.1.248.12.4.249.1.1.4.1.1	IpAddress	not-accessible	The network address which when combined with the corresponding value of hm2AgentDvmrpRouteSourceMask identifies the sources for which this entry contains multicast routing information.
IP hm2AgentDvmrpRouteSourceMask	1.3.6.1.4.1.248.12.4.249.1.1.4.1.2	IpAddress	not-accessible	The network mask which when combined with the corresponding value of hm2AgentDvmrpRouteSource identifies the sources for which this entry contains multicast routing information.
IP hm2AgentDvmrpRouteUpstreamNeighbor	1.3.6.1.4.1.248.12.4.249.1.1.4.1.3	IpAddress	read-only	The address of the upstream neighbor (e.g., RPF neighbor) from which IP datagrams from these sources are received.
NUM hm2AgentDvmrpRouteIfIndex	1.3.6.1.4.1.248.12.4.249.1.1.4.1.4	InterfaceIndexOrZero	read-only	The value of ifIndex for the interface on which IP datagrams sent by these sources are received. A value of 0 typically means the route is an aggregate for which no next- hop interface exists.
I32 hm2AgentDvmrpRouteMetric	1.3.6.1.4.1.248.12.4.249.1.1.4.1.5	Integer32	read-only	The distance in hops to the source subnet.
TIK hm2AgentDvmrpRouteExpiryTime	1.3.6.1.4.1.248.12.4.249.1.1.4.1.6	TimeTicks	read-only	The minimum amount of time remaining before this entry will be aged out.
TIK hm2AgentDvmrpRouteUpTime	1.3.6.1.4.1.248.12.4.249.1.1.4.1.7	TimeTicks	read-only	The time since the route represented by this entry was learned by the router.
hm2AgentDvmrpRouteNextHopTable	1.3.6.1.4.1.248.12.4.249.1.1.5		not-accessible	The (conceptual) table containing information on the next hops on outgoing interfaces for routing IP multicast datagrams.
hm2AgentDvmrpRouteNextHopEntry	1.3.6.1.4.1.248.12.4.249.1.1.5.1		not-accessible	An entry (conceptual row) in the list of next hops on outgoing interfaces to which IP multicast datagrams from particular sources are routed.
IP hm2AgentDvmrpRouteNextHopSource	1.3.6.1.4.1.248.12.4.249.1.1.5.1.1	IpAddress	not-accessible	The network address which when combined with the corresponding value of hm2AgentDvmrpRouteNextHopSourceMask identifies the sources for which this entry specifies a next hop on an outgoing interface.
IP hm2AgentDvmrpRouteNextHopSourceMask	1.3.6.1.4.1.248.12.4.249.1.1.5.1.2	IpAddress	not-accessible	The network mask which when combined with the corresponding value of hm2AgentDvmrpRouteNextHopSource identifies the sources for which this entry specifies a next hop on an outgoing interface.
NUM hm2AgentDvmrpRouteNextHopIfIndex	1.3.6.1.4.1.248.12.4.249.1.1.5.1.3	InterfaceIndex	not-accessible	The ifIndex value of the interface for the outgoing interface for this next hop.
INT hm2AgentDvmrpRouteNextHopType	1.3.6.1.4.1.248.12.4.249.1.1.5.1.4	INTEGER	read-only	Type is leaf if no downstream dependent neighbors exist on the outgoing virtual interface. Otherwise, type is branch.
hm2AgentDvmrpPruneTable	1.3.6.1.4.1.248.12.4.249.1.1.6		not-accessible	The (conceptual) table listing the router's upstream prune state.
hm2AgentDvmrpPruneEntry	1.3.6.1.4.1.248.12.4.249.1.1.6.1		not-accessible	An entry (conceptual row) in the hm2AgentDvmrpPruneTable.
IP hm2AgentDvmrpPruneGroup	1.3.6.1.4.1.248.12.4.249.1.1.6.1.1	IpAddress	not-accessible	The group address which has been pruned.
IP hm2AgentDvmrpPruneSource	1.3.6.1.4.1.248.12.4.249.1.1.6.1.2	IpAddress	not-accessible	The address of the source or source network which has been pruned.
IP hm2AgentDvmrpPruneSourceMask	1.3.6.1.4.1.248.12.4.249.1.1.6.1.3	IpAddress	not-accessible	The address of the source or source network which has been pruned. The mask must either be all 1's, or else hm2AgentDvmrpPruneSource and hm2AgentDvmrpPruneSourceMask must match hm2AgentDvmrpRouteSource and hm2AgentDvmrpRouteSourceMask for some entry in the hm2AgentDvmrpRouteTable.
TIK hm2AgentDvmrpPruneExpiryTime	1.3.6.1.4.1.248.12.4.249.1.1.6.1.4	TimeTicks	read-only	The amount of time remaining before this prune should expire at the upstream neighbor. This value should be the minimum of the default prune lifetime and the remaining prune lifetimes of the local router's downstream neighbors, if any.

RFC description

Manages Distance Vector Multicast Routing Protocol (DVMRP) information on Hirschmann network devices.

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Download HM2-PLATFORM-DVMRP-MIB