CISCO-NETWORK-VIRTUALIZATION-OVERLAY-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2019-07-08

Category: Cisco Devices, Pseudowire

Description: Manages VXLAN and NVO network virtualization overlay tunnels and VNI mappings on Cisco data center devices.

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What Is CISCO-NETWORK-VIRTUALIZATION-OVERLAY-MIB?

CISCO-NETWORK-VIRTUALIZATION-OVERLAY-MIB is a Cisco Systems proprietary MIB managing Network Virtualization Overlay functionality — NVGRE (Network Virtualization using Generic Routing Encapsulation) tunnels terminated by a Network Virtualization Endpoint (NVE) — used to build virtual network overlays across a physical fabric. Its NVE table configures the encapsulation type, source interface, and configured VNI (virtual network identifier) per instance, alongside a related virtual-network (VNet) table. As a configuration MIB it lets an administrator confirm an NVE instance's encapsulation type and VNI mapping when troubleshooting an overlay-network connectivity issue. It is deployed on Cisco switches/routers acting as NVGRE network virtualization endpoints. Engineers can download the CISCO-NETWORK-VIRTUALIZATION-OVERLAY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-NETWORK-VIRTUALIZATION-OVERLAY-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

Cisco switches/routers acting as NVGRE network virtualization endpoints

Monitoring Examples

An administrator checks cnvoNvoEncapType and cnvoNvoConfiguredVni for an NVE instance to confirm the overlay tunnel's encapsulation and VNI mapping match the expected virtual network configuration.

What Can Be Monitored

NVE encapsulation type and configured VNI

Imported Objects

From CISCO-PRIVATE-VLAN-MIB

VlanIndexOrZero

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From IF-MIB

InterfaceIndexOrZero

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
DisplayString
RowStatus
StorageType

How to Use in IPNetwork Monitor

Example using cnvoVNetOutUnicastPackets OID:

Select a Cisco switches/routers acting as NVGRE endpoint 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 cnvoVNetOutUnicastPackets 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. This object indicates the total number of unicast packets transmitted out of this virtual network. 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
ciscoNetworkVirtualizationOverlayMIB	1.3.6.1.4.1.9.9.820			This MIB module is for managing Network Virtualization Overlay functionality on Cisco devices. The following terms are used throughout this MIB: NVE Network Virtualization Endpoint NVGRE Network Virtualization using Generic Routing Encapsulation NVO Network Virtualization Overlay VLAN Virtual Local Area Network VNet Virtual Network VNI Virtual Network Identifier VXLAN Virtual Extensible LAN
cnvoMIBNotifs	1.3.6.1.4.1.9.9.820.0
cnvoMIBObjects	1.3.6.1.4.1.9.9.820.1
cnvoNvoObjects	1.3.6.1.4.1.9.9.820.1.1
cnvoNvoTable	1.3.6.1.4.1.9.9.820.1.1.1		not-accessible	This table provides network virtualization overlays configured on the system.
cnvoNvoEntry	1.3.6.1.4.1.9.9.820.1.1.1.1		not-accessible	An entry containing management information for network virtualization overlay.
U32 cnvoNvoInstanceId	1.3.6.1.4.1.9.9.820.1.1.1.1.1	Unsigned32	not-accessible	A unique number to identify a NVO instance.
INT cnvoNvoEncapType	1.3.6.1.4.1.9.9.820.1.1.1.1.2	INTEGER	read-create	This object specifies the encapsulation type for the NVO instance. 'unknown' - The read-only value 'unknown' indicates that encapsulation type is none of the following 'vxlan' - encapsulation type is VXLAN 'nvgre' - encapsulation type is NVGRE This object may be modified when the row is active.
NUM cnvoNvoSourceInterface	1.3.6.1.4.1.9.9.820.1.1.1.1.3	InterfaceIndexOrZero	read-create	This object specifies the Source Interface for the NVO instance. This object may be modified when the row is active.
STR cnvoNvoConfiguredVni	1.3.6.1.4.1.9.9.820.1.1.1.1.4	SnmpAdminString	read-only	This object indicates the list of VNIs associated with this NVO instance.
STO cnvoNvoStorageType	1.3.6.1.4.1.9.9.820.1.1.1.1.5	StorageType	read-create	This object specifies the storage type for this conceptual row.
ROW cnvoNvoRowStatus	1.3.6.1.4.1.9.9.820.1.1.1.1.6	RowStatus	read-create	This object specifies the status of this conceptual row.
cnvoVNetTable	1.3.6.1.4.1.9.9.820.1.1.2		not-accessible	This table provides information for virtual networks on the system.
cnvoVNetEntry	1.3.6.1.4.1.9.9.820.1.1.2.1		not-accessible	An entry containing status information for a virtual network.
U32 cnvoVNetLocalVNetId	1.3.6.1.4.1.9.9.820.1.1.2.1.1	Unsigned32	not-accessible	A unique number to identify a local virtual network.
IPt cnvoVNetIpMcastAddrType	1.3.6.1.4.1.9.9.820.1.1.2.1.2	InetAddressType	read-only	This object indicates the type of Internet address to be used as Multicast Group Address.
IP cnvoVNetIpMcastAddr	1.3.6.1.4.1.9.9.820.1.1.2.1.3	InetAddress	read-write	This object specifies the Internet address to be used as Multicast Group Address. The type of this address is determined by cnvoVNetIpMcastAddrType.
VLA cnvoVNetVlan	1.3.6.1.4.1.9.9.820.1.1.2.1.4	VlanIndexOrZero	read-write	This object specifies the mapping vlan for the virtual network.
INT cnvoVNetArpSuppression	1.3.6.1.4.1.9.9.820.1.1.2.1.5	INTEGER	read-write	This object specifies if ARP seppression is turned ON/OFF for the virtual network.
INT cnvoVNetReplication	1.3.6.1.4.1.9.9.820.1.1.2.1.6	INTEGER	read-write	This object specifies the replication mode of the virtual network identifier.
INT cnvoVNetHostReachability	1.3.6.1.4.1.9.9.820.1.1.2.1.7	INTEGER	read-write	This object specifies if the virtual network identifier is configured via data plane, control plane or is unconfigured.
INT cnvoVNetVniType	1.3.6.1.4.1.9.9.820.1.1.2.1.8	INTEGER	read-write	This object specifies the type of the virtual network identifier - unknown, L2 or L3.
STR cnvoVNetIpVrfOrBridgeDomainName	1.3.6.1.4.1.9.9.820.1.1.2.1.9	SnmpAdminString	read-write	This object specifies the ip vrf (for L3 vni) or bridge-domain name (for L2 vni) virtual network identifier
IP cnvoVNetRouterMacAddr	1.3.6.1.4.1.9.9.820.1.1.2.1.10	InetAddress	read-only	This object indicates the hardware MAC of the physical router.
cnvoPeerTable	1.3.6.1.4.1.9.9.820.1.1.3		not-accessible	This table provides information of remote peers for virtual network overlay on this system.
cnvoPeerEntry	1.3.6.1.4.1.9.9.820.1.1.3.1		not-accessible	An entry containing remote peer information for virtual network overlay.
IPt cnvoPeerIpAddrType	1.3.6.1.4.1.9.9.820.1.1.3.1.1	InetAddressType	not-accessible	This object indicates the type of Internet address of NVO peer.
IP cnvoPeerIpAddr	1.3.6.1.4.1.9.9.820.1.1.3.1.2	InetAddress	not-accessible	This object indicates the Internet address of NVO peer. The type of this address is determined by cnvoPeerIpAddrType.
DAT cnvoPeerUpTime	1.3.6.1.4.1.9.9.820.1.1.3.1.3	DateAndTime	read-only	This object indicates the time at which the peer became up. This object contains value 0x0000010100000000 when the NVO peer is down.
INT cnvoPeerLearningSourceType	1.3.6.1.4.1.9.9.820.1.1.3.1.4	INTEGER	read-only	This object indicates the way in which in peer was learnt - either via data plane or control plane.
cnvoVNetStatsTable	1.3.6.1.4.1.9.9.820.1.1.4		not-accessible	This table provides statistics information of virtual networks on the system.
cnvoVNetStatsEntry	1.3.6.1.4.1.9.9.820.1.1.4.1		not-accessible	An entry containing statistics information for a virtual network.
C64 cnvoVNetOutUnicastPacketsEx	1.3.6.1.4.1.9.9.820.1.1.4.1.1	Counter64	read-only	This object indicates the total number of unicast packets transmitted out of this virtual network.
C64 cnvoVNetOutUnicastBytes	1.3.6.1.4.1.9.9.820.1.1.4.1.2	Counter64	read-only	This object indicates the number of bytes for unicast packet transmitted out of this virtual network.
C64 cnvoVNetOutMulticastPackets	1.3.6.1.4.1.9.9.820.1.1.4.1.3	Counter64	read-only	This object indicates the number of multicast packets transmitted out of this virtual network.
C64 cnvoVNetOutMulticastBytes	1.3.6.1.4.1.9.9.820.1.1.4.1.4	Counter64	read-only	This object indicates the number of bytes for multicast packet transmitted of this virtual network.
C64 cnvoVNetInUnicastPackets	1.3.6.1.4.1.9.9.820.1.1.4.1.5	Counter64	read-only	This object indicates the number of unicast packets received by this virtual network.
C64 cnvoVNetInUnicastBytes	1.3.6.1.4.1.9.9.820.1.1.4.1.6	Counter64	read-only	This object indicates the number of bytes for unicast packet received by this virtual network.
C64 cnvoVNetInMulticastPackets	1.3.6.1.4.1.9.9.820.1.1.4.1.7	Counter64	read-only	This object indicates the number of multicast packets received by this virtual network.
C64 cnvoVNetInMulticastBytes	1.3.6.1.4.1.9.9.820.1.1.4.1.8	Counter64	read-only	This object indicates the number of bytes for multicast packet received by this virtual network.
cnvoNvoPeerStatsTable	1.3.6.1.4.1.9.9.820.1.1.5		not-accessible	This table provides remote peers statistics information for virtual network overlay.
cnvoNvoPeerStatsEntry	1.3.6.1.4.1.9.9.820.1.1.5.1		not-accessible	An entry containing statistics information for a particular peer of a virtual network overlay.
C64 cnvoNvoPeerOutUnicastPackets	1.3.6.1.4.1.9.9.820.1.1.5.1.1	Counter64	read-only	This object indicates the number of unicast packets transmitted to the peer.
C64 cnvoNvoPeerOutUnicastBytes	1.3.6.1.4.1.9.9.820.1.1.5.1.2	Counter64	read-only	This object indicates the number of bytes for unicast packet transmitted to the peer.
C64 cnvoNvoPeerOutMulticastPackets	1.3.6.1.4.1.9.9.820.1.1.5.1.3	Counter64	read-only	This object indicates the number of multicast packets transmitted to the peer.
C64 cnvoNvoPeerOutMulticastBytes	1.3.6.1.4.1.9.9.820.1.1.5.1.4	Counter64	read-only	This object indicates the number of bytes for multicast packet transmitted to the peer.
C64 cnvoNvoPeerInUnicastPackets	1.3.6.1.4.1.9.9.820.1.1.5.1.5	Counter64	read-only	This object indicates the number of unicast packets received from the peer.
C64 cnvoNvoPeerInUnicastBytes	1.3.6.1.4.1.9.9.820.1.1.5.1.6	Counter64	read-only	This object indicates the number of bytes for unicast packet received from the peer.
C64 cnvoNvoPeerInMulticastPackets	1.3.6.1.4.1.9.9.820.1.1.5.1.7	Counter64	read-only	This object indicates the number of multicast packets received from the peer.
C64 cnvoNvoPeerInMulticastBytes	1.3.6.1.4.1.9.9.820.1.1.5.1.8	Counter64	read-only	This object indicates the number of bytes for multicast packet received from the peer.
cnvoVNetVrfStatsTable	1.3.6.1.4.1.9.9.820.1.1.6		not-accessible	This table provides statistics information of vxlan Static route per vni per vrf on the system.
cnvoVNetVrfStatsEntry	1.3.6.1.4.1.9.9.820.1.1.6.1		not-accessible	An entry containing statistics information for vxlan Static route per vni per vrf.
STR cnvoVNetVrfStatsVrfName	1.3.6.1.4.1.9.9.820.1.1.6.1.1	SnmpAdminString	not-accessible	This object indicates the VRF where traffic stats belongs to. The zero length value indicates the default
U32 cnvoVNetVrfStatsVni	1.3.6.1.4.1.9.9.820.1.1.6.1.2	Unsigned32	not-accessible	The vni number where the stats entry belongs to.
C64 cnvoVNetVrfIngressPackets	1.3.6.1.4.1.9.9.820.1.1.6.1.3	Counter64	read-only	This object indicates the total number of ingress packets transmitted out of this virtual network.
C64 cnvoVNetVrfIngressBytes	1.3.6.1.4.1.9.9.820.1.1.6.1.4	Counter64	read-only	This object indicates the total number of ingress bytes transmitted out of this virtual network.
C64 cnvoVNetVrfEgressPackets	1.3.6.1.4.1.9.9.820.1.1.6.1.5	Counter64	read-only	This object indicates the total number of egress packets transmitted out of this virtual network.
C64 cnvoVNetVrfEgressBytes	1.3.6.1.4.1.9.9.820.1.1.6.1.6	Counter64	read-only	This object indicates the total number of egress bytes transmitted out of this virtual network.
cnvoMIBConform	1.3.6.1.4.1.9.9.820.2
cnvoMIBCompliances	1.3.6.1.4.1.9.9.820.2.1
cnvoMIBCompliance	1.3.6.1.4.1.9.9.820.2.1.1			The compliance statement for CISCO-NETWORK-VIRTUALIZATION- OVERLAY-MIB.
cnvoMIBGroups	1.3.6.1.4.1.9.9.820.2.2
cnvoNvoGroup	1.3.6.1.4.1.9.9.820.2.2.1			A collection of objects providing NVO information.
cnvoVirtualNetworkGroup	1.3.6.1.4.1.9.9.820.2.2.2			A collection of objects providing VNI status information.
cnvoPeerGroup	1.3.6.1.4.1.9.9.820.2.2.3			A collection of objects providing NVO peer information.
cnvoVirtualNetworkStatsGroup	1.3.6.1.4.1.9.9.820.2.2.4			A collection of objects providing virtual network statistics information.
cnvoNvoPerPeerOutUnicastStatsGroup	1.3.6.1.4.1.9.9.820.2.2.5			A collection of objects providing transmitted peer unicast statistics information.
cnvoNvoPerPeerInUnicastStatsGroup	1.3.6.1.4.1.9.9.820.2.2.6			A collection of objects providing received peer unicast statistics information.
cnvoNvoPerPeerInMulticastStatsGroup	1.3.6.1.4.1.9.9.820.2.2.7			A collection of objects providing received peer multicast statistics information.
cnvoNvoPerPeerOutMulticastStatsGroup	1.3.6.1.4.1.9.9.820.2.2.8			A collection of objects providing transmitted peer unicast statistics information.
cnvoVNetVrfStatsGroup	1.3.6.1.4.1.9.9.820.2.2.9			A collection of objects providing vxlan Static Route traffic stats.

RFC description

Manages Network Virtualization Overlay (NVO) functionality including VXLAN and NVGRE on Cisco devices.

Start monitoring Cisco switches/routers acting as NVGRE 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 CISCO-NETWORK-VIRTUALIZATION-OVERLAY-MIB