TUBS-TNM-MIB

All MIBs › TUBS-TNM-MIB

Organization: TU Braunschweig

Last Updated: 1994-11-15

Category: TU Braunschweig Research MIBs

Description: Manages TU Braunschweig Tcl Network Management toolkit objects for scriptable SNMP operations.

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What Is TUBS-TNM-MIB?

TUBS-TNM-MIB is an experimental MIB module from the Tcl Network Management (TNM) toolkit developed at Technical University of Braunschweig, used by Tcl/Tk-based SNMP agents and management scripts (scotty/TNM) for scriptable network management. It exposes agent/toolkit self-describing information — version identifiers for the TNM toolkit and embedded Tcl interpreter, a command counter, agent date/time, trap-destination and trap-message configuration, HTTP proxy/source/error status, and a peer table describing other TNM-based peers the agent knows about. Its monitoring value is primarily around software/agent status rather than hardware: it lets a manager confirm which TNM/Tcl version an agent is running, track how many Tcl commands it has executed (a rough software-activity/load indicator), verify its trap-forwarding and HTTP-proxy configuration, and enumerate known peer agents and their reachability/status. It is a self-contained, standards-adjacent (SNMPv2-SMI based) experimental MIB not formally dependent on other vendor MIBs, though it is specific to the TNM/scotty toolkit ecosystem. It is typically found in academic/research or legacy Unix network-management environments running Tcl-scripted SNMP agents rather than in commercial production hardware. Engineers can download the TUBS-TNM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TUBS-TNM-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

Unix host running a Tcl/Tk (scotty/TNM) based SNMP agent

Monitoring Examples

An administrator would poll tnmVersion and tnmTclVersion to confirm which TNM toolkit/Tcl interpreter build an agent is running, check tnmTclCmdCount as a rough measure of scripting activity/load, and query the tnmPeerTable (tnmPeerEntry, tnmPeerTAddress) to see which other TNM agents this one is aware of and their transport addresses; tnmTrapDst/tnmTrapMsg reveal where and what the agent sends as trap notifications, while tnmHttpProxy/tnmHttpSource/tnmHttpError expose its HTTP-proxy configuration and any proxy fetch errors.

What Can Be Monitored

TNM toolkit and Tcl interpreter version
Tcl command execution count
agent date/time
trap destination and message configuration
HTTP proxy configuration and errors
known peer agents and their addresses

Imported Objects

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32
enterprises

From SNMPv2-TC

DateAndTime
DisplayString
RowStatus
TAddress
TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using tnmTclCmdCount OID:

Select an Unix host running a Tcl/Tk (scotty/TNM) based SNMP agent (toolkit version/trap-forwarding/peer status) 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 tnmTclCmdCount into the Find box to locate it in the OID tree, then select it and click OK. The nummber of Tcl statements evaluated so far. 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 Counter32-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
DAT tnmDate	1.3.6.1.4.1.1575.1.1.1.4	DateAndTime	read-only	The current date.
tnmDownload	1.3.6.1.4.1.1575.1.1.2
tnmElection	1.3.6.1.4.1.1575.1.1.4
U32 tnmElectionIndex	1.3.6.1.4.1.1575.1.1.4.1	Unsigned32	read-only	The (hopefully) unique Index of this peer used by the Gully election algorithm.
ADR tnmElectionMaster	1.3.6.1.4.1.1575.1.1.4.3	TAddress	read-write	This variable will be set by a new master appearing on the scene. (We should use an inform request here.)
T/F tnmElectionPanic	1.3.6.1.4.1.1575.1.1.4.2	TruthValue	read-only	Reading this variable will start the panic algorithm on this peer. (We should use an inform request here.)
tnmEval	1.3.6.1.4.1.1575.1.1.5
tnmEvalEntry	1.3.6.1.4.1.1575.1.1.5.2.1		not-accessible	An entry (conceptual row) in the evaluation table.
I32 tnmEvalIndex	1.3.6.1.4.1.1575.1.1.5.2.1.1	Integer32	read-only	The auxiliary variable used for identifying instances of the columnar objects in the evaluation table.
I32 tnmEvalSlot	1.3.6.1.4.1.1575.1.1.5.1	Integer32	read-only	The index number of the first unassigned entry in the evaluation table. A management station should create new entries in the evaluation table using this algorithm: first, issue a management protocol retrieval operation to determine the value of evalSlot; and, second, issue a management protocol set operation to create an instance of the evalStatus object setting its value to underCreation(1). If this latter operation succeeds, then the management station may continue modifying the instances corresponding to the newly created conceptual row, without fear of collision with other management stations.
ROW tnmEvalStatus	1.3.6.1.4.1.1575.1.1.5.2.1.4	RowStatus	read-create	The status column used for creating, modifying, and deleting instances of the columnar objects in the evaluation table.
STR tnmEvalString	1.3.6.1.4.1.1575.1.1.5.2.1.2	DisplayString	read-create	The string to evaluate.
tnmEvalTable	1.3.6.1.4.1.1575.1.1.5.2		not-accessible	The (conceptual) evaluation table.
STR tnmEvalValue	1.3.6.1.4.1.1575.1.1.5.2.1.3	DisplayString	read-only	The value resturned by executing evalString.
STR tnmHttpError	1.3.6.1.4.1.1575.1.1.2.3	DisplayString	read-only	This variable contains an error string is an http operation fails. An empty string signals that the last operation completed successfully.
STR tnmHttpProxy	1.3.6.1.4.1.1575.1.1.2.1	DisplayString	read-write	This variable specifies the proxy server. It must be of the form [:] where is either a domain name or an IP address and is the port number used to access the proxy server. The default port number is 80.
URL tnmHttpSource	1.3.6.1.4.1.1575.1.1.2.2	URL	read-write	Setting this variable will make tnm to download and source the document with the given URL. The agent will try to retrieve the document and sets the variable to the URL if this operations was successfull. Otherwise, the value will become an empty string.
tnmMIB	1.3.6.1.4.1.1575.1.1			Experimental MIB modules for tnm based agents.
OCT tnmPeerAuth	1.3.6.1.4.1.1575.1.1.3.1.1.2	OCTET STRING	read-create	The authentication information for this peer. This will usually be a community string until we get the final SNMPv2 decisions about the security model.
tnmPeerEntry	1.3.6.1.4.1.1575.1.1.3.1.1		not-accessible	An entry (conceptual row) in the peer table.
TIM tnmPeerLastChecked	1.3.6.1.4.1.1575.1.1.3.1.1.4	TimeStamp	read-create	The value of sysUpTime when the status of the peer was retrieved and written to tnmPeerState.
tnmPeers	1.3.6.1.4.1.1575.1.1.3
INT tnmPeerState	1.3.6.1.4.1.1575.1.1.3.1.1.3	INTEGER	read-create	The current status of the peer as returned by the last status probe message.
ROW tnmPeerStatus	1.3.6.1.4.1.1575.1.1.3.1.1.5	RowStatus	read-create	The status column used for creating, modifying, and deleting instances of the columnar objects in the tnm peer table.
tnmPeerTable	1.3.6.1.4.1.1575.1.1.3.1		not-accessible	A (conceptual) table storing known tnm peers.
ADR tnmPeerTAddress	1.3.6.1.4.1.1575.1.1.3.1.1.1	TAddress	read-create	The address and port number of the peer agent.
tnmStatus	1.3.6.1.4.1.1575.1.1.1
C32 tnmTclCmdCountEx	1.3.6.1.4.1.1575.1.1.1.3	Counter32	read-only	The nummber of Tcl statements evaluated so far.
STR tnmTclVersion	1.3.6.1.4.1.1575.1.1.1.2	DisplayString	read-only	The version number of the running Tcl interpreter.
STR tnmTrapDst	1.3.6.1.4.1.1575.1.1.1.5	DisplayString	read-write	The host name of the trap sink host.
STR tnmTrapMsg	1.3.6.1.4.1.1575.1.1.1.6	DisplayString	read-only	The description of the last trap create by this entity.
STR tnmVersion	1.3.6.1.4.1.1575.1.1.1.1	DisplayString	read-only	The version number of the tnm agent.

RFC description

TU Braunschweig experimental MIB for tnm (Tcl-based network management) agent status and configuration.

Start monitoring Unix host running a Tcl/Tk (scotty/TNM) based SNMP agent (toolkit version/trap-forwarding/peer 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.

Download TUBS-TNM-MIB