TIARA-BUNDLE-MIB

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Organization: Tiara Networks Inc.

Last Updated: 1999-07-01

Category: WAN and Serial Interfaces

Description: Manages Tiara Networks WAN router multilink bundle interface configuration and statistics.

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What Is TIARA-BUNDLE-MIB?

TIARA-BUNDLE-MIB is a legacy vendor MIB from Tiara Networks for managing multilink bundle interfaces on WAN routers, where a bundle aggregates multiple physical links into a single logical connection. It exposes configuration such as bundle naming, contact information, description, encapsulation type, and IP addressing, alongside error-rate statistics for the bundle. The MIB supports performance/fault monitoring of the WAN bundle by tracking degraded seconds, severely errored seconds, and unavailable seconds, which are standard line-quality indicators revealing the health of the underlying multilink connection. It operates in the same conceptual space as standard multilink/PPP bundle MIBs but is a proprietary Tiara implementation rather than a direct dependency on an IETF MIB. It was typically deployed on Tiara Networks WAN access routers aggregating multiple T1/E1 or similar links into higher-bandwidth bundles. Administrators unfamiliar with this legacy module often load TIARA-BUNDLE-MIB into a MIB Browser first to inspect its bundle table structure before scripting automated polling of line-quality counters.

IPNetwork Monitor allows you to monitor SNMP objects defined in TIARA-BUNDLE-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

Tiara Networks WAN access router

Monitoring Examples

An administrator would poll bundleTable/bundleTableEntry, indexed by bundleId, checking bundleDropEs, bundleDropSes, and bundleDropUas to detect a bundle experiencing elevated errored or unavailable seconds, indicating a failing member link or degraded WAN circuit. bundleEncapsulation and bundleIpAddr/bundleSubnetMask would be checked to confirm the bundle's configured encapsulation and addressing match expectations after a configuration change.

What Can Be Monitored

bundle error seconds (dropped ES/SES/UAS)
bundle encapsulation type
bundle IP address and subnet mask
bundle name and description

Imported Objects

From RFC1213-MIB

DisplayString

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TruthValue

From TIARA-NETWORKS-SMI

tiaraMgmt

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using bundleNoOfLinks OID:

Select a Tiara Networks WAN access router 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 bundleNoOfLinks 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. It reports the current number of links configured in this link bundle. 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 an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if the count drops below the number of links you expect in this bundle, which would indicate a link was removed or failed to come up. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
STR bundleContact	1.3.6.1.4.1.3174.2.13.1.1.3	DisplayString	read-create	Name of the person who can be contacted for information about the bundle. The maximum length for this parameter is 15 characters. This parameter can be set after the bundle is named and before the links are assigned.
STR bundleDescr	1.3.6.1.4.1.3174.2.13.1.1.4	DisplayString	read-create	Brief description of the bundle. The maximum length of this parameter is 25 characters. This parameter can be set after the bundle is named and before the links are assigned.
I32 bundleDropEs	1.3.6.1.4.1.3174.2.13.1.1.6	Integer32	read-create	The length of time in seconds that the error condition Errored Seconds exists before a link is dropped. This parameter can be configured only for multilink bundles and after the bundle is encapsulated.
I32 bundleDropSes	1.3.6.1.4.1.3174.2.13.1.1.7	Integer32	read-create	The length of time in seconds that the error condition Severely Errored Seconds exists before a link is dropped. This parameter can be configured only for multilink bundles and after the bundle is encapsulated.
I32 bundleDropUas	1.3.6.1.4.1.3174.2.13.1.1.8	Integer32	read-create	The length of time in seconds that the error condition Unavailable Seconds exists before a link is dropped. This parameter can be configured only for multilink bundles and after the bundle is encapsulated.
INT bundleEncapsulation	1.3.6.1.4.1.3174.2.13.1.1.5	INTEGER	read-create	Specifies the type of protocol encapsulation for the bundle. To configure protocol-specific parameters for a bundle, the bundle must first be encapsulated with that protocol. To unconfigure the encapsulation type, this variable should be set to noEncap.
INT bundleId	1.3.6.1.4.1.3174.2.13.1.1.1	INTEGER	not-accessible	bundleId is the identifier of a bundle. To configure a bundle, this parameter must be used as the index. This is assigned internally by the Tiara system. Whenever a row creation needs to occur in the bundleTable, the bundleId is entered as 65535.
IP bundleIpAddr	1.3.6.1.4.1.3174.2.13.1.1.9	IpAddress	read-create	The bundle's source IP address. This is one of the parameters required to set up IP multiplexing for a bundle. This parameter can be configured only when the bundle is encapsulated. Also the parameters bundleIpAddr and bundleSubnetMask have to be set together during the same request. To unconfigure the IP address, a set operation is performed with the value 0.0.0.0
I32 bundleLinkBw	1.3.6.1.4.1.3174.2.13.2.1.8	Integer32	read-only	bundleLinkBw indicates the bandwidth of the link. The bandwidth of an individual link depends upon its configuration. For example, in a link of type T1, its bandwidth will depend upon whether the link is a full T1 or a fractional T1 consisting of 24 DS0 timeslots.
I32 bundleLinkDiffDelay	1.3.6.1.4.1.3174.2.13.2.1.7	Integer32	read-only	bundleLinkDiffDelay specifies the maximum differential delay allowed on the links in a multilink bundle. If the packet delay on any link exceeds the differential delay set for a bundle, that link is dropped from the bundle.
bundleLinkEntry	1.3.6.1.4.1.3174.2.13.2.1		not-accessible	Link parameters that relate to a given bundle are specified in this table.
T/F bundleLinkInvertedData	1.3.6.1.4.1.3174.2.13.2.1.5	TruthValue	read-create	Setting bundleLinkInvertedData parameter to true will have the system invert data on all DS0 channels before transmission. Data inversion is used only for HDLC-encapsulated bundles.
INT bundleLinkPhysIfNum	1.3.6.1.4.1.3174.2.13.2.1.6	INTEGER	read-create	bundleLinkPhysIfNum specifies the interface number of the interface type such as CT3, HSSI, T3 on which this link is being created. This variable holds significance only for link types CT3, HSSI and T3. It is a mandatory variable for row creation for link types CT3, HSSI, and T3.
I32 bundleLinkRestoralTime	1.3.6.1.4.1.3174.2.13.1.1.14	Integer32	read-create	Error-free time interval (in seconds) that must pass before a link is automatically restored. This parameter can be set when the bundleRestoreMethod is automatic.
OCT bundleLinkRestore	1.3.6.1.4.1.3174.2.13.1.1.16	OCTET STRING	read-write	bundleLinkRestore specifies the links to be restored manually. This parameter is configured when the value of bundleRestoreMethod is manual. The user needs to specify the link/s to be restored. LSB in the OCTET STRING represents T1 Number 1. For example, to restore links 1-4 the value should be set to 000F
ROW bundleLinkRowStatus	1.3.6.1.4.1.3174.2.13.2.1.10	RowStatus	read-create	bundleLinkRowStatus is used to add or delete a row in the table. To create a row, this parameter is set to value 4(createAndGo). To delete a row, this parameter is set to a value 6(destroy).
INT bundleLinkSpeed	1.3.6.1.4.1.3174.2.13.2.1.4	INTEGER	read-create	The bundleLinkSpeed specifies the transmission speed of all DS0 channels in a bundle.
INT bundleLinkStatus	1.3.6.1.4.1.3174.2.13.2.1.9	INTEGER	read-only	bundleLinkStatus indicates whether a particular link in a bundle is up or down. The link can go down due to various reasons such as differential delay, a broken link, or negotiation problems at the far end.
I32 bundleLinkT1Num	1.3.6.1.4.1.3174.2.13.2.1.1	Integer32	not-accessible	bundleLinkT1Num is the number of the T1 link being added to a specific bundle. For example, to assign link number 4, the value of this parameter should be set to 4. However, the design of SNMP's link creation is different from that of the system CLI. In SNMP, only one link can be created at a time whereas in the system CLI, multiple links can be configured in a single request. This parameter is mandatory for row creation in the interfaces with CT3 and T1 link types .
bundleLinkTable	1.3.6.1.4.1.3174.2.13.2		not-accessible	All the parameters related to the assigned links of a bundle are defined in bundleLinkTable. A row in this table can be created when a bundle with the corresponding bundleId already exists in the bundleTable.
OCT bundleLinkTimeSlots	1.3.6.1.4.1.3174.2.13.2.1.2	OCTET STRING	read-create	bundleLinkTimeSlots indicates the DS0 channels in a fractional T1 link. The LSB in the OCTET STRING represents DS0 channel number 1. For example, to assign DS0 channels 1-4, the value of this parameter should be set to 000F
INT bundleLinkType	1.3.6.1.4.1.3174.2.13.2.1.3	INTEGER	read-create	bundleLinkType specifies the interface type (i.e., CT3, T1, T3, and HSSI) of the link being assigned to the bundle. This is a mandatory parameter for Row creation in the bundleLinkTable.
STR bundleName	1.3.6.1.4.1.3174.2.13.1.1.2	DisplayString	read-create	Name of the bundle. To configure a bundle, this parameter must be set. That is, a descriptive name should be given to a bundle. The maximum length of a bundle name is 8 characters. This parameter is set once during the creation of a bundle. A bundle can not be renamed.
I32 bundleNoOfLinksEx	1.3.6.1.4.1.3174.2.13.1.1.17	Integer32	read-only	Indicates the number of links configured in the bundle.
INT bundleRestoreMethod	1.3.6.1.4.1.3174.2.13.1.1.13	INTEGER	read-write	bundleRestoreMethod defines how a dropped link of a multilink bundle will be restored. It can be done either manually or automatically. If the restore mode is automatic, the parameter bundleLinkRestoralTime should be set (in seconds) during the same request.
ROW bundleRowStatus	1.3.6.1.4.1.3174.2.13.1.1.19	RowStatus	read-create	bundleRowStatus is used to add/delete a row in the table. Adding or deleting a row corresponds to creating a bundle or deleting a bundle. In order to add a row to the bundle table, a set on this parameter should be done with the value 4 (createAndGo) and bundleId parameter set with the value of 65535. A request to create a row can be completed successfully only if a set on the bundleRowStatus and a set on the bundleName come in the same request. To delete a row this parameter has to be set with the value 6 (destroy).
IP bundleSrcForwardingAddrPrimary	1.3.6.1.4.1.3174.2.13.1.1.11	IpAddress	read-create	The bundle's destination IP address. This is one of the parameters required to set up IP multiplexing for a bundle. This parameter can be configured when the bundle has been configured for IP multiplexing. To unconfigure the source forwarding address, a set operation is performed with the value 0.0.0.0. This is the primary source forwarding address
IP bundleSrcForwardingAddrSecondary	1.3.6.1.4.1.3174.2.13.1.1.12	IpAddress	read-create	The bundle's secondary or backup destination address. This address will be used only if the primary address uses an ethernet interface and failover is enabled on that interface and the interface goes down. The secondary source forwarding address is an optional parameter, it should be a gateway on the alternate ethernet This parameter is set along with the primary source forwarding address parameter. To unconfigure this parameter a set operation is performed with the value 0.0.0.0 for the primary address, or a primary address is set with no secondary, or both primary and secondary are set to 0.0.0.0
INT bundleStatus	1.3.6.1.4.1.3174.2.13.1.1.15	INTEGER	read-write	bundleStatus shutdowns the bundle. Although the default is 'enable,' the bundle remains disabled until all necessary parameters are present
IP bundleSubnetMask	1.3.6.1.4.1.3174.2.13.1.1.10	IpAddress	read-create	This parameter represents the source subnet mask address. This is one of the parameters required to set up IP multiplexing for a bundle. This parameter is set along with the bundleIpAddr parameter during the same request.
bundleTable	1.3.6.1.4.1.3174.2.13.1		not-accessible	Bundle management related parameters are defined in this table.
bundleTableEntry	1.3.6.1.4.1.3174.2.13.1.1		not-accessible	Bundle parameter entries are listed in this table.
I32 bundleTotalBw	1.3.6.1.4.1.3174.2.13.1.1.18	Integer32	read-only	Indicates the total bandwidth for this bundle. The bundle bandwidth is the aggregated band- widths of all the links assigned to a particular bundle.
tiaraBundleMib	1.3.6.1.4.1.3174.2.13			Bundle MIB for defining bundle parameters

FAQ

What does TIARA-BUNDLE-MIB track for a WAN multilink bundle on a Tiara Networks router?
It exposes bundle configuration — naming, description, encapsulation type, and IP addressing — along with error-rate statistics for the bundle as a whole, including degraded seconds, severely errored seconds, and unavailable seconds, which are standard line-quality indicators.

How would an operator use TIARA-BUNDLE-MIB to catch a degrading multilink bundle before it fails outright?
By watching the bundle's error seconds counters (dropped ES/SES/UAS) rise over time, an operator can see the underlying aggregated T1/E1 links deteriorating and investigate the physical links feeding the bundle before the WAN connection becomes unavailable.

RFC description

Tiara bundle MIB for managing link aggregation and bundle group configurations in Tiara networking systems.

Start monitoring Tiara Networks WAN access router, discontinued (multilink bundle error-rate status) 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.

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