H3C-NVGRE-MIB

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Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2014-03-11

Category: VPN and Security, Vendor: H3C/HH3C

Description: H3C MIB for NVGRE (Network Virtualization using GRE) managing virtual network overlays in data center environments.

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What Is H3C-NVGRE-MIB?

H3C-NVGRE-MIB is an H3C-specific MIB for managing Network Virtualization using Generic Routing Encapsulation (NVGRE), a data-center overlay technology that tunnels virtual-machine traffic across a physical underlay network using a Virtual Subnet Identifier. It exposes a table of configured NVGRE virtual networks (ID, associated VSI, remote MAC count, row status) and a separate tunnel table tracking each NVGRE tunnel's identifier and status. As a monitoring MIB it is used for software/overlay-network state visibility rather than physical hardware health: operators check whether expected NVGRE segments and tunnels are configured and active (row status) and watch h3cNvgreRemoteMacCount to gauge how many remote MAC addresses have been learned over a given virtual network, which can reveal underlay connectivity or MAC-learning problems. It logically depends on the device's VSI/bridge-domain and tunnel-interface infrastructure, though no formal MIB import is stated. It is typically deployed on H3C data-center switches/routers acting as NVGRE tunnel endpoints in virtualized, multi-tenant cloud network fabrics. Engineers can download the H3C-NVGRE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3C-NVGRE-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

H3C data-center switches/routers (NVGRE tunnel endpoints)

Monitoring Examples

Polling h3cNvgreTable / h3cNvgreEntry indexed by h3cNvgreID shows h3cNvgreVsiIndex, h3cNvgreRemoteMacCount, and h3cNvgreRowStatus for each configured virtual network, letting an admin confirm the segment is active and check whether expected remote MACs have been learned. h3cNvgreTunnelTable / h3cNvgreTunnelEntry (h3cNvgreTunnelID, h3cNvgreTunnelRowStatus) shows whether the underlying NVGRE tunnel to a remote endpoint is up. h3cNvgreNextNvgreID and h3cNvgreConfigured give the next available ID and overall configuration state for the NVGRE feature.

What Can Be Monitored

configured NVGRE virtual network IDs and status
VSI association per NVGRE network
remote MAC learning count
tunnel status per NVGRE tunnel
NVGRE feature configuration state

Imported Objects

From HUAWEI-3COM-OID-MIB

h3cCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus

How to Use in IPNetwork Monitor

Example using h3cNvgreTunnelOctets OID:

Select an H3C data-center switch/router (NVGRE tunnel endpoints) 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 h3cNvgreTunnelOctets 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 octets that have been forwarded over the tunnel. 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 Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cNvgre	1.3.6.1.4.1.2011.10.2.156			The NVGRE MIB.
h3cNvgreObjects	1.3.6.1.4.1.2011.10.2.156.1
h3cNvgreScalarGroup	1.3.6.1.4.1.2011.10.2.156.1.1
U32 h3cNvgreNextNvgreID	1.3.6.1.4.1.2011.10.2.156.1.1.1	Unsigned32	read-only	Next available NVGRE ID(identifier), in the range of 4096 to 16777214. The invalid value 4294967295 indicates that no ID can be set.
U32 h3cNvgreConfigured	1.3.6.1.4.1.2011.10.2.156.1.1.2	Unsigned32	read-only	Number of currently configured NVGREs.
h3cNvgreTable	1.3.6.1.4.1.2011.10.2.156.1.2		not-accessible	A table for NVGRE parameters.
h3cNvgreEntry	1.3.6.1.4.1.2011.10.2.156.1.2.1		not-accessible	Each entry represents the parameters of an NVGRE.
U32 h3cNvgreID	1.3.6.1.4.1.2011.10.2.156.1.2.1.1	Unsigned32	not-accessible	The NVGRE ID, in the range of 4096 to 16777214.
U32 h3cNvgreVsiIndex	1.3.6.1.4.1.2011.10.2.156.1.2.1.2	Unsigned32	read-create	VSI index. A unique index for the conceptual row identifying a VSI(Virtual Switch Instance) in the h3cVsiTable.
U32 h3cNvgreRemoteMacCount	1.3.6.1.4.1.2011.10.2.156.1.2.1.3	Unsigned32	read-only	Remote MAC(Media Access Control) address count of this NVGRE.
ROW h3cNvgreRowStatus	1.3.6.1.4.1.2011.10.2.156.1.2.1.4	RowStatus	read-create	Operation status of this table entry. When a row in this table is in active state, no objects in that row can be modified by the agent.
h3cNvgreTunnelTable	1.3.6.1.4.1.2011.10.2.156.1.3		not-accessible	A table for NVGRE tunnel parameters.
h3cNvgreTunnelEntry	1.3.6.1.4.1.2011.10.2.156.1.3.1		not-accessible	Each entry represents the parameters of an NVGRE tunnel.
U32 h3cNvgreTunnelID	1.3.6.1.4.1.2011.10.2.156.1.3.1.1	Unsigned32	not-accessible	A unique index for tunnel.
ROW h3cNvgreTunnelRowStatus	1.3.6.1.4.1.2011.10.2.156.1.3.1.2	RowStatus	read-create	Operation status of this table entry.
C64 h3cNvgreTunnelOctetsEx	1.3.6.1.4.1.2011.10.2.156.1.3.1.3	Counter64	read-only	The number of octets that have been forwarded over the tunnel.
C64 h3cNvgreTunnelPackets	1.3.6.1.4.1.2011.10.2.156.1.3.1.4	Counter64	read-only	The number of packets that have been forwarded over the tunnel.
h3cNvgreTunnelBoundTable	1.3.6.1.4.1.2011.10.2.156.1.4		not-accessible	A table for the number of NVGREs to which the tunnel is bound.
h3cNvgreTunnelBoundEntry	1.3.6.1.4.1.2011.10.2.156.1.4.1		not-accessible	An entry represents the number of NVGREs to which a tunnel is bound.
U32 h3cNvgreTunnelBoundNvgreNum	1.3.6.1.4.1.2011.10.2.156.1.4.1.1	Unsigned32	read-only	The number of NVGREs to which this tunnel is bound.
h3cNvgreMacTable	1.3.6.1.4.1.2011.10.2.156.1.5		not-accessible	A table for NVGRE remote MAC addresses.
h3cNvgreMacEntry	1.3.6.1.4.1.2011.10.2.156.1.5.1		not-accessible	An NVGRE remote MAC address.
MAC h3cNvgreMacAddr	1.3.6.1.4.1.2011.10.2.156.1.5.1.1	MacAddress	not-accessible	MAC address.
U32 h3cNvgreMacTunnelID	1.3.6.1.4.1.2011.10.2.156.1.5.1.2	Unsigned32	read-only	A unique index for tunnel.
INT h3cNvgreMacType	1.3.6.1.4.1.2011.10.2.156.1.5.1.3	INTEGER	read-only	The type of an MAC address.
h3cNvgreStaticMacTable	1.3.6.1.4.1.2011.10.2.156.1.6		not-accessible	A table for NVGRE static remote MAC addresses.
h3cNvgreStaticMacEntry	1.3.6.1.4.1.2011.10.2.156.1.6.1		not-accessible	An NVGRE static MAC address.
MAC h3cNvgreStaticMacAddr	1.3.6.1.4.1.2011.10.2.156.1.6.1.1	MacAddress	not-accessible	Static MAC address.
U32 h3cNvgreStaticMacTunnelID	1.3.6.1.4.1.2011.10.2.156.1.6.1.2	Unsigned32	read-create	A unique index for tunnel.
ROW h3cNvgreStaticMacRowStatus	1.3.6.1.4.1.2011.10.2.156.1.6.1.3	RowStatus	read-create	Operation status of this table entry. When a row in this table is in active state, no objects in that row can be modified by the agent.

RFC description

Vendor-private MIB for H3C/Huawei devices; defines NVGRE (Network Virtualization using Generic Routing Encapsulation) management objects.

Start monitoring H3C data-center switch/router (NVGRE tunnel endpoints) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download H3C-NVGRE-MIB