Unisphere-Data-IP-TUNNEL-MIB

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Organization: Unisphere Networks, Inc.

Last Updated: 2001-07-23

Category: Juniper Unisphere ERX Routing

Description: Manages Unisphere ERX IP tunnel interface configuration, encapsulation type, and tunnel endpoints.

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What Is Unisphere-Data-IP-TUNNEL-MIB?

This is the enterprise IP Tunnel MIB for Unisphere Networks' ERX Edge Router Switch line, modeling GRE/DVMRP-style IP tunnel interfaces. It exposes tunnel configuration data such as tunnel name, mode, encapsulation checksum setting, MTU, and source/destination endpoint addresses via usdIpTunnelInterfaceTable. Its monitoring value is largely configuration/software status: verifying a tunnel's usdIpTunnelSource/usdIpTunnelDestination pairing is correct and that usdIpTunnelRowStatus shows the tunnel administratively up, which is essential to diagnosing a tunnel that has silently gone down. It depends on the standard ifIndex interface model (each tunnel gets an ifIndex via usdIpTunnelNextIfIndex) and relates to the companion Unisphere IP MIB for underlying routed interfaces. It is deployed on ERX routers building GRE-based overlay networks or multicast tunnels (DVMRP) across a service-provider backbone. Engineers can download the Unisphere-Data-IP-TUNNEL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Unisphere-Data-IP-TUNNEL-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

Juniper/Unisphere ERX Edge Router

Monitoring Examples

An operator troubleshooting a broken overlay would walk usdIpTunnelInterfaceTable/usdIpTunnelInterfaceEntry keyed by usdIpTunnelIfIndex, checking usdIpTunnelSource and usdIpTunnelDestination against expected endpoints and usdIpTunnelRowStatus to confirm the tunnel entry is active. A mismatched usdIpTunnelMtu could explain fragmentation issues, while usdIpTunnelMode and usdIpTunnelChecksum settings would be compared against the peer router's configuration to rule out an encapsulation mismatch. usdIpTunnelName provides a human-readable label for correlating the tunnel with its provisioning record.

What Can Be Monitored

tunnel interface source/destination
tunnel mode and checksum setting
tunnel MTU
tunnel row status
tunnel name
virtual router association

Imported Objects

From IF-MIB

InterfaceIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus
TruthValue

From Unisphere-Data-MIBs

usDataMibs

MODULE-IDENTITY

From Unisphere-Data-TC

UsdName
UsdNextIfIndex

OIDs

OID symbolic	OID numeric	Type	Access	Description
usdIpTunnelMIB	1.3.6.1.4.1.4874.2.2.51			The IP Tunnel MIB for the Unisphere Networks Inc. enterprise.
usdIpTunnelInterfaceObjects	1.3.6.1.4.1.4874.2.2.51.1
USD usdIpTunnelNextIfIndex	1.3.6.1.4.1.4874.2.2.51.1.1	UsdNextIfIndex	read-only	Coordinate ifIndex value allocation for entries in usdIpTunnelIfTable. A GET of this object returns the next available ifIndex value to be used to create an entry in the associated interface table; or zero, if no valid ifIndex value is available. This object also returns a value of zero when it is the lexicographic successor of a varbind presented in an SNMP GETNEXT or GETBULK request, for which circumstance it is assumed that ifIndex allocation is unintended. Successive GETs will typically return different values, thus avoiding collisions among cooperating management clients seeking to create table entries simultaneously.
usdIpTunnelInterfaceTable	1.3.6.1.4.1.4874.2.2.51.1.2		not-accessible	This table contains entries of IP Tunnel interfaces.
usdIpTunnelInterfaceEntry	1.3.6.1.4.1.4874.2.2.51.1.2.1		not-accessible	Each entry describes the characteristics of a single IP Tunnel interface. Creating/deleting entries in this table causes corresponding entries for be created/deleted in ifTable/ifXTable/usdIfTable
NUM usdIpTunnelIfIndex	1.3.6.1.4.1.4874.2.2.51.1.2.1.1	InterfaceIndex	not-accessible	The ifIndex of the IP tunnel interface. When creating entries in this table, suitable values for this object are determined by reading usdIpTunnelNextIfIndex.
STR usdIpTunnelName	1.3.6.1.4.1.4874.2.2.51.1.2.1.2	DisplayString	read-create	The administratively assigned name for this IP Tunnel interface. Before configuring other tunnel attributes, IP tunnel has to be created with minimum attributes (tunnel name, mode and rowStatus).
INT usdIpTunnelMode	1.3.6.1.4.1.4874.2.2.51.1.2.1.3	INTEGER	read-create	The configured mode for this IP Tunnel interface.
USD usdIpTunnelVirtualRouter	1.3.6.1.4.1.4874.2.2.51.1.2.1.4	UsdName	read-create	The transport virtual router associated with this IP tunnel interface. This object need not be set when creating row entries. Note that the default when this object is not specified is the router associated with the agent acting on the management request.
T/F usdIpTunnelChecksum	1.3.6.1.4.1.4874.2.2.51.1.2.1.5	TruthValue	read-create	The Tunnel checksum configuration for this entry. Setting this object to true(1) will enabled end-to-end checksumming and will cause the system to drop packets with bad checksums received on this interface. Setting this object to false(2) will disable this feature.
INT usdIpTunnelMtu	1.3.6.1.4.1.4874.2.2.51.1.2.1.6	INTEGER	read-create	The tunnel MTU.
IP usdIpTunnelDestination	1.3.6.1.4.1.4874.2.2.51.1.2.1.7	IpAddress	read-create	The tunnel destination IP address.
IP usdIpTunnelSource	1.3.6.1.4.1.4874.2.2.51.1.2.1.8	IpAddress	read-create	The tunnel source IP address.
ROW usdIpTunnelRowStatus	1.3.6.1.4.1.4874.2.2.51.1.2.1.9	RowStatus	read-create	Controls creation/deletion of entries in this table according to the RowStatus textual convention, constrained to support the following values only: createAndGo destroy To create an entry in this table, the following entry objects MUST be explicitly configured: usdIpTunnelIfRowStatus usdIpTunnelName usdIpTunnelMode In addition, when creating an entry the following conditions must hold: A value for usdIpTunnelIfIndex must have been determined previously, typically by reading usdIpTunnelNextIfIndex. Once created, the following objects may not be modified: usdIpTunnelName usdIpTunnelMode usdIpTunnelVirtualRouter A corresponding entry in ifTable/ifXTable/usdIfTable is created/destroyed as a result of creating/destroying an entry in this table.
usdIpTunnelConformance	1.3.6.1.4.1.4874.2.2.51.2
usdIpTunnelCompliances	1.3.6.1.4.1.4874.2.2.51.2.1
usdIpTunnnelCompliance	1.3.6.1.4.1.4874.2.2.51.2.1.1			The compliance statement for entities that implement the Unisphere IP Tunnel MIB.
usdIpTunnelGroups	1.3.6.1.4.1.4874.2.2.51.2.2
usdIpTunnelInterfaceGroup	1.3.6.1.4.1.4874.2.2.51.2.2.1			A collection of objects for managing IP Tunnel capabilities in a Unisphere product.

RFC description

Manages IP tunnel interface creation and configuration for Unisphere routing devices.

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Download Unisphere-Data-IP-TUNNEL-MIB

What Is Unisphere-Data-IP-TUNNEL-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description