HH3C-NVGRE-MIB

All MIBs › HH3C-NVGRE-MIB

Organization: Hangzhou H3C Technologies Co., Ltd.

Last Updated: 2014-03-11

Category: Technology: IPv6, Technology: VPN, Vendor: H3C/HH3C

Description: HH3C MIB for Network Virtualization using Generic Routing Encapsulation (NVGRE) overlay network configuration.

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What Is HH3C-NVGRE-MIB?

HH3C-NVGRE-MIB is an H3C-proprietary SNMP module for managing Network Virtualization using Generic Routing Encapsulation (NVGRE), an overlay tunneling technology used in virtualized data-center networks to carry Layer 2 traffic over an IP fabric. It exposes largely configuration-oriented data: NVGRE network identifiers, per-VSI (virtual switch instance) mappings, tunnel endpoints, and row-status objects used to provision or tear down NVGRE segments and tunnels. As a monitoring MIB it is software/overlay-state focused rather than hardware-focused, letting an operator confirm whether a given NVGRE ID is configured, how many remote MAC addresses have been learned for a segment (hh3cNvgreRemoteMacCount), and whether tunnels are correctly provisioned (row status). It is a vendor-specific overlay MIB with no direct dependency on other standard MIBs, complementing standard interface and IP MIBs used for the underlying IP fabric. It is deployed in H3C data-center switches/fabrics that implement NVGRE-based network virtualization for multi-tenant cloud environments. Engineers can download the HH3C-NVGRE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-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
H3C network-virtualization/overlay fabric devices

Monitoring Examples

An operator would check hh3cNvgreTable/hh3cNvgreEntry (keyed by hh3cNvgreID) alongside hh3cNvgreVsiIndex to confirm which virtual switch instance an NVGRE segment maps to, and read hh3cNvgreRemoteMacCount to see how many remote MACs have been learned over that segment, revealing whether tenant traffic is actually flowing. The hh3cNvgreTunnelTable/hh3cNvgreTunnelEntry (keyed by hh3cNvgreTunnelID) would be polled to verify tunnel endpoints are correctly configured via hh3cNvgreTunnelRowStatus, catching a tunnel left in a not-active provisioning state. hh3cNvgreNextNvgreID and hh3cNvgreConfigured give a quick view of overlay capacity and whether NVGRE has been enabled on the device at all.

What Can Be Monitored

NVGRE ID configuration
VSI-to-NVGRE-ID mapping
remote MAC count per segment
NVGRE tunnel endpoint status
tunnel/segment row/provisioning status

Imported Objects

From HH3C-OID-MIB

hh3cCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus

How to Use in IPNetwork Monitor

Example using hh3cNvgreTunnelOctets OID:

Select an H3C data-center switch (NVGRE overlay tunneling) 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 hh3cNvgreTunnelOctets 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
hh3cNvgre	1.3.6.1.4.1.25506.2.156			The NVGRE MIB.
hh3cNvgreObjects	1.3.6.1.4.1.25506.2.156.1
hh3cNvgreScalarGroup	1.3.6.1.4.1.25506.2.156.1.1
U32 hh3cNvgreNextNvgreID	1.3.6.1.4.1.25506.2.156.1.1.1	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 hh3cNvgreConfigured	1.3.6.1.4.1.25506.2.156.1.1.2	Unsigned32	read-only	Number of currently configured NVGREs.
hh3cNvgreTable	1.3.6.1.4.1.25506.2.156.1.2		not-accessible	A table for NVGRE parameters.
hh3cNvgreEntry	1.3.6.1.4.1.25506.2.156.1.2.1		not-accessible	Each entry represents the parameters of an NVGRE.
U32 hh3cNvgreID	1.3.6.1.4.1.25506.2.156.1.2.1.1	Unsigned32	not-accessible	The NVGRE ID, in the range of 4096 to 16777214.
U32 hh3cNvgreVsiIndex	1.3.6.1.4.1.25506.2.156.1.2.1.2	Unsigned32	read-create	VSI index. A unique index for the conceptual row identifying a VSI(Virtual Switch Instance) in the hh3cVsiTable.
U32 hh3cNvgreRemoteMacCount	1.3.6.1.4.1.25506.2.156.1.2.1.3	Unsigned32	read-only	Remote MAC(Media Access Control) address count of this NVGRE.
ROW hh3cNvgreRowStatus	1.3.6.1.4.1.25506.2.156.1.2.1.4	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.
hh3cNvgreTunnelTable	1.3.6.1.4.1.25506.2.156.1.3		not-accessible	A table for NVGRE tunnel parameters.
hh3cNvgreTunnelEntry	1.3.6.1.4.1.25506.2.156.1.3.1		not-accessible	Each entry represents the parameters of an NVGRE tunnel.
U32 hh3cNvgreTunnelID	1.3.6.1.4.1.25506.2.156.1.3.1.1	Unsigned32	not-accessible	A unique index for tunnel.
ROW hh3cNvgreTunnelRowStatus	1.3.6.1.4.1.25506.2.156.1.3.1.2	RowStatus	read-create	Operation status of this table entry.
C64 hh3cNvgreTunnelOctetsEx	1.3.6.1.4.1.25506.2.156.1.3.1.3	Counter64	read-only	The number of octets that have been forwarded over the tunnel.
C64 hh3cNvgreTunnelPackets	1.3.6.1.4.1.25506.2.156.1.3.1.4	Counter64	read-only	The number of packets that have been forwarded over the tunnel.
hh3cNvgreTunnelBoundTable	1.3.6.1.4.1.25506.2.156.1.4		not-accessible	A table for the number of NVGREs to which the tunnel is bound.
hh3cNvgreTunnelBoundEntry	1.3.6.1.4.1.25506.2.156.1.4.1		not-accessible	An entry represents the number of NVGREs to which a tunnel is bound.
U32 hh3cNvgreTunnelBoundNvgreNum	1.3.6.1.4.1.25506.2.156.1.4.1.1	Unsigned32	read-only	The number of NVGREs to which this tunnel is bound.
hh3cNvgreMacTable	1.3.6.1.4.1.25506.2.156.1.5		not-accessible	A table for NVGRE remote MAC addresses.
hh3cNvgreMacEntry	1.3.6.1.4.1.25506.2.156.1.5.1		not-accessible	An NVGRE remote MAC address.
MAC hh3cNvgreMacAddr	1.3.6.1.4.1.25506.2.156.1.5.1.1	MacAddress	not-accessible	MAC address.
U32 hh3cNvgreMacTunnelID	1.3.6.1.4.1.25506.2.156.1.5.1.2	Unsigned32	read-only	A unique index for tunnel.
INT hh3cNvgreMacType	1.3.6.1.4.1.25506.2.156.1.5.1.3	INTEGER	read-only	The type of an MAC address.
hh3cNvgreStaticMacTable	1.3.6.1.4.1.25506.2.156.1.6		not-accessible	A table for NVGRE static remote MAC addresses.
hh3cNvgreStaticMacEntry	1.3.6.1.4.1.25506.2.156.1.6.1		not-accessible	An NVGRE static MAC address.
MAC hh3cNvgreStaticMacAddr	1.3.6.1.4.1.25506.2.156.1.6.1.1	MacAddress	not-accessible	Static MAC address.
U32 hh3cNvgreStaticMacTunnelID	1.3.6.1.4.1.25506.2.156.1.6.1.2	Unsigned32	read-create	A unique index for tunnel.
ROW hh3cNvgreStaticMacRowStatus	1.3.6.1.4.1.25506.2.156.1.6.1.3	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

H3C Network Virtualization using Generic Routing Encapsulation (NVGRE) configuration and management.

Start monitoring H3C data-center switch (NVGRE overlay tunneling) 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 HH3C-NVGRE-MIB