CTRON-DOWNLOAD-MIB

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Category: Device Management, Vendor: Cabletron/Enterasys

Description: Manages Cabletron firmware and configuration download operations including TFTP transfer status and image management.

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What Is CTRON-DOWNLOAD-MIB?

CTRON-DOWNLOAD-MIB is a Cabletron Systems proprietary MIB for managing firmware and configuration file downloads to Cabletron network devices, typically over TFTP. It exposes objects for initiating a download, specifying the TFTP server address and filename, and tracking the transfer's progress and completion/error status. It is used operationally rather than for continuous hardware monitoring, but its status objects let an administrator monitor the software update process itself, confirming a firmware image transferred successfully, detecting a failed or timed-out download, and verifying the resulting image/configuration version after a reboot. It commonly depends on standard TFTP conventions and is invoked alongside a device's system/entity MIBs to correlate the new software version with reported entity information after the download completes. It was deployed across Cabletron/Enterasys switches and hubs during firmware upgrade or configuration backup/restore operations in enterprise network management. Engineers can download the CTRON-DOWNLOAD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CTRON-DOWNLOAD-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

Cabletron/Enterasys switch or hub

Monitoring Examples

An administrator would set download control objects to point to a TFTP server IP and firmware filename, then poll a status object (analogous to ctDownloadStatus) to watch the transfer progress from in-progress to complete or failed. A failed status combined with no change in reported software version would indicate a network reachability problem to the TFTP server or a corrupted image file. This MIB is typically scripted into automated firmware-upgrade tools that push new images to many Cabletron switches and confirm success before proceeding to the next device.

What Can Be Monitored

firmware download status
TFTP transfer progress
download success/failure
target image filename
software version after update

Imported Objects

From CTRON-MIB-NAMES

ctDownLoad

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

NetworkAddress

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
ctDL	1.3.6.1.4.1.52.4.1.5.8.1
INT ctDLForceOnBoot	1.3.6.1.4.1.52.4.1.5.8.1.1	INTEGER	read-write	When set to a 1, the system will request a download during the next system restart. If no server is found and the current image in flash memory is valid, the system will boot using the flash-resident image.
INT ctDLCommitRAMToFlash	1.3.6.1.4.1.52.4.1.5.8.1.2	INTEGER	read-write	When written with a 1, the boot software will erase flash memory, compress the downloaded code if necessary, and save the image into flash memory. Upon completion of this operation, the flash memory driver resets this object to 0, indicating completion of the programming operation.
INT ctDLInitiateColdBoot	1.3.6.1.4.1.52.4.1.5.8.1.3	INTEGER	read-write	When written with a 1, the boot software initiates a system reboot. When written with a 2, the boot software initiates a soft reboot of the system. The soft reboot does not perform the Boot PROM Power-Up diagnostics. If only one form of reboot is supported initiate that reboot in both cases. A read always returns a 0.
IP ctDLTFTPRequestHost	1.3.6.1.4.1.52.4.1.5.8.1.4	IpAddress	read-write	The IP address of the TFTP server to be used when firmware is to be loaded across the network.
STR ctDLTFTPRequest	1.3.6.1.4.1.52.4.1.5.8.1.5	DisplayString	read-write	The filename requested of the server when firmware is to be loaded across the network.
STR ctDLLastImageFilename	1.3.6.1.4.1.52.4.1.5.8.1.6	DisplayString	read-only	The value of ctDLFileName during the last successful image download. This is the name of the file, on the TFTP server, that was download to become the current image.
IP ctDLLastServerIPAddress	1.3.6.1.4.1.52.4.1.5.8.1.7	IpAddress	read-only	The value of ctDLNetAddress during the last successful image download. This is the IP address of the TFTP server used to download the current image.
INT ctDLFlashSize	1.3.6.1.4.1.52.4.1.5.8.1.8	INTEGER	read-only	Denotes the size, in bytes, of flash memory contained on this module.
INT ctDLFlashCount	1.3.6.1.4.1.52.4.1.5.8.1.9	INTEGER	read-only	Denotes the number of times that flash memory has been reprogrammed. This value is initialized to 1, when the module is initially powered up.
INT ctDLFirmwareBase	1.3.6.1.4.1.52.4.1.5.8.1.10	INTEGER	read-only	Denotes the starting RAM address of the firmware.
INT ctDLFirmwareTop	1.3.6.1.4.1.52.4.1.5.8.1.11	INTEGER	read-only	Denotes the ending RAM address of firmware.
INT ctDLFirmwareStart	1.3.6.1.4.1.52.4.1.5.8.1.12	INTEGER	read-only	Denotes the RAM entry point of the firmware as established by the boot process.
OCT ctDLBootRev	1.3.6.1.4.1.52.4.1.5.8.1.13	OCTET STRING	read-only	Denotes the revision of boot firmware in the module. The first octet provides the version, and the second provides the revision.
INT ctDLForceBootp	1.3.6.1.4.1.52.4.1.5.8.1.14	INTEGER	read-write	When set to 1, this object forces the client to send a BOOTP request packet when rebooting. The client will make several attempts before timing out if a BOOTP server does not respond. This object remains set.
OCT ctDLServerName	1.3.6.1.4.1.52.4.1.5.8.1.15	OCTET STRING	read-write	This OID is reserved for future use of the BOOTP server name. This field can be used when a client wants to get boot information from a particular BOOTP server.
INT ctDLOnLineDownLoad	1.3.6.1.4.1.52.4.1.5.8.1.16	INTEGER	read-write	During normal operation this object has the value of 1. By setting this object to a value of forceDownLoad(2) an image download via TFTP will be performed, ctDLNetAddress specifies the TFTP server and ctDLFileName specifies the file name of the image on the TFTP server. By setting this object to a value of forceDownLoadReset(3) an image download via TFTP will be performed, ctDLNetAddress specifies the TFTP server and ctDLFileName specifies the file name of the image on the TFTP server. A reset will be forced upon successful completion of the download. By setting this object to a value of downLoadConfiguration(4) the specified configuration file will be downloaded, verified, and, if valid, committed to NVRAM, if valid. A reset will be forced upon successful completion. ctDLNetAddress specifies the TFTP server and ctDLFileName specifies the name of the configuration file on the TFTP server. By setting this object to upLoadConfiguration(5), the contents of NVRAM will be uploaded via TFTP to the specified file on the specified TFTP server. ctDLNetAddress specifies the TFTP server and ctDLFileName specifies the name of the configuration file.
INT ctDLOperStatus	1.3.6.1.4.1.52.4.1.5.8.1.17	INTEGER	read-only	This object reflects the status of the download code. normalOperation(3) - Indicates that either no download has been started, or that a download was started and has finished normally. downLoadActive(4) - indicates a download is currently in progress. downLoadCompleteError(5) - Indicates that a download was started but an error was detected.
IP ctDLNetAddress	1.3.6.1.4.1.52.4.1.5.8.1.18	IpAddress	read-write	The IP Address of the TFTP server to be used for uploading and downloading configuration files and for downloading images.
STR ctDLFileName	1.3.6.1.4.1.52.4.1.5.8.1.19	DisplayString	read-write	The file name to be used to specify the image or configuration file on the TFTP server specified by ctDLNetAddress. This should be a complete path filename.
STR ctDLErrorString	1.3.6.1.4.1.52.4.1.5.8.1.20	DisplayString	read-only	If the value of ctDLOperStatus is downloadCompleteError(5) then this object will provide a more complete description of the error. Otherwise this object will be the zero length string.
IP ctDLTftpServerGatewayIPAddress	1.3.6.1.4.1.52.4.1.5.8.1.21	IpAddress	read-write	The IP address of the gateway/router which connects this SNMP agent to the TFTP server.
INT ctDLBlockCount	1.3.6.1.4.1.52.4.1.5.8.1.22	INTEGER	read-only	Current TFTP block count of an active session. If no TFTP transfer is in progress, zero is returned.
INT ctDLBootPartitionStatus	1.3.6.1.4.1.52.4.1.5.8.1.23	INTEGER	read-only	Status of the boot partition or partitions. A value of good(1) indicates that all boot partitions contain a valid checksum. A value of bad(2) indicates that one or more boot partitions contain an invalid checksum and the the image was not able to fix the invalid boot partition. A value of inProgress(3) indicates that the image is attempting to fix an invalid boot partition and this status will change to either good(1) or bad(2).

RFC description

Manages firmware download operations and flash memory configuration on Cabletron devices.

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Download CTRON-DOWNLOAD-MIB

What Is CTRON-DOWNLOAD-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description