ARRIS-C3-TFTPD-MIB

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Organization: Arris International

Last Updated: 2004-03-30

Category: DOCSIS and Cable, Vendor: ARRIS

Description: ARRIS C3 CMTS internal TFTP server configuration for cable modem provisioning file transfer.

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What Is ARRIS-C3-TFTPD-MIB?

ARRIS-C3-TFTPD-MIB is a vendor-specific MIB from ARRIS for the internal TFTP server that runs on the C3 CMTS (Cable Modem Termination System) platform, used to serve cable modem configuration/provisioning files during modem registration. Since no sample objects were captured, its precise object set cannot be confirmed here, but per its module description it manages the built-in TFTP daemon's configuration rather than general system telemetry. In a monitoring context, this MIB's value would be confirming that the embedded TFTP provisioning service is running and healthy, since a failed or misconfigured TFTP server directly prevents cable modems from completing provisioning and coming online. It is DOCSIS/CMTS-specific and works alongside the broader DOCSIS cable modem provisioning MIB set on the same chassis. Typical deployment context is an ARRIS C3 CMTS chassis in a cable operator's headend, supporting DOCSIS cable modem registration and configuration-file delivery. Engineers can download the ARRIS-C3-TFTPD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ARRIS-C3-TFTPD-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

ARRIS/Cadant C3 CMTS (Cable Modem Termination System)

Monitoring Examples

No sample objects were provided for this MIB, so a concrete monitoring scenario citing real object names cannot be given honestly; based on the module description, one would expect it to expose the TFTP server's operational/enabled state and possibly transfer statistics or error counts, which would reveal provisioning failures if the internal TFTP service were down or misconfigured.

Imported Objects

From ARRIS-MIB

cmtsC3

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TruthValue

How to Use in IPNetwork Monitor

Example using dcxTFTPDReadRequests OID:

Select an ARRIS (Cadant) C3 CMT (Cable Modem Termination System) (legacy) 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 dcxTFTPDReadRequests into the Find box to locate it in the OID tree, then select it and click OK. It reports the number of TFTP read requests that have been made in total. 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
cmtsC3TFTPDMIB	1.3.6.1.4.1.4115.1.4.3.9			This MIB manages the TFTP server on the Arris CMTS C3
dcxTFTPDObjects	1.3.6.1.4.1.4115.1.4.3.9.1
INT dcxTFTPDServerState	1.3.6.1.4.1.4115.1.4.3.9.1.1	INTEGER	read-write	Specifies whether the TFTP server is running and accepting requests (active), or not running (inactive).
STR dcxTFTPDCurrentDirectory	1.3.6.1.4.1.4115.1.4.3.9.1.2	DisplayString	read-write	This is the directory that files are being retrieved from on the CMTS.
INT dcxTFTPDIpVerification	1.3.6.1.4.1.4115.1.4.3.9.1.3	INTEGER	read-write	Specifies whether IP Address verification is enabled or not. When IP Address verification is enabled, TFTP requests will only be accepted from IP Addresses from cable modems that the CMTS recognizes.
T/F dcxTFTPDClearCache	1.3.6.1.4.1.4115.1.4.3.9.1.4	TruthValue	read-write	When set to true, the TFTP server cache will be cleared. This should be done if you overwrite a file in the TFTP directory, in order to ensure that the new file will be used. Reading this value always returns false.
C32 dcxTFTPDReadRequestsEx	1.3.6.1.4.1.4115.1.4.3.9.1.5	Counter32	read-only	Number of TFTP read requests that have been made in total.
C32 dcxTFTPDReadRequestsDropped	1.3.6.1.4.1.4115.1.4.3.9.1.6	Counter32	read-only	Number of TFTP read requests that were dropped by the CMTS. Requests could be dropped for a few reasons, for example, being invalid, or IP verification failing.
C32 dcxTFTPDReadRequestsFailed	1.3.6.1.4.1.4115.1.4.3.9.1.7	Counter32	read-only	Number of TFTP read requests that failed. This is ususally due to either an error during the file transfer.
C32 dcxTFTPDReadBytes	1.3.6.1.4.1.4115.1.4.3.9.1.8	Counter32	read-only	Number of bytes successfully transferred by the TFTP server on read requests. This includes only completely transferred files.
C32 dcxTFTPDWriteRequests	1.3.6.1.4.1.4115.1.4.3.9.1.9	Counter32	read-only	Number of TFTP write requests that have been made in total.
C32 dcxTFTPDWriteRequestsDropped	1.3.6.1.4.1.4115.1.4.3.9.1.10	Counter32	read-only	Number of TFTP write requests that were dropped by the CMTS. Requests could be dropped for a few reasons, for example, being invalid, or IP verification failing.
C32 dcxTFTPDWriteRequestsFailed	1.3.6.1.4.1.4115.1.4.3.9.1.11	Counter32	read-only	Number of TFTP write requests that failed. This is ususally due to either an error during the file transfer.
C32 dcxTFTPDWriteBytes	1.3.6.1.4.1.4115.1.4.3.9.1.12	Counter32	read-only	Number of bytes successfully transferred by the TFTP server on write requests. This includes only completely transferred files.

RFC description

Manages TFTP server state, directory, IP verification, and request statistics on Arris CMTS.

Start monitoring ARRIS (Cadant) C3 CMTS (Cable Modem Termination System) (legacy) 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 ARRIS-C3-TFTPD-MIB

What Is ARRIS-C3-TFTPD-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

How to Use in IPNetwork Monitor

RFC description