CTRON-CSMACD-MIB

All MIBs › CTRON-CSMACD-MIB

Category: Network Interfaces, Vendor: Cabletron/Enterasys

Description: Manages Cabletron CSMA/CD (Ethernet) interface parameters, error counters, and collision statistics.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock 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.

What Is CTRON-CSMACD-MIB?

CTRON-CSMACD-MIB is a Cabletron Systems (later Enterasys) proprietary enterprise MIB extending the standard Ethernet/CSMA-CD interface model to manage Cabletron network switches and hubs. It exposes interface-level configuration alongside error and collision statistics for each Ethernet port, layering vendor-specific detail on top of generic interface counters. Monitoring it reveals the hardware health of individual Ethernet ports: rising collision counts, alignment/CRC errors, or late collisions signal a failing NIC, bad cabling, or a duplex mismatch on that port. It builds on the concepts of the standard EtherLike-MIB (RFC 3635) and IF-MIB, adding Cabletron-specific counters not present in those standards. It would be deployed on legacy Cabletron/Enterasys Ethernet switches and hubs where administrators need vendor-specific physical-layer error detail beyond what IF-MIB/EtherLike-MIB provide. Engineers can download the CTRON-CSMACD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CTRON-CSMACD-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 Ethernet switch or hub

Monitoring Examples

No sample object names were supplied for this MIB, so specific table/field names cannot be cited with confidence. Based on its description, it would be expected to expose a per-port table of CSMA/CD error and collision counters analogous to dot3StatsTable in the standard EtherLike-MIB. An admin would typically poll such a table to watch for a sudden rise in late-collision or FCS-error counts on a specific port, indicating a failing transceiver or a cabling/duplex problem.

What Can Be Monitored

Ethernet port collision counts
CRC/alignment error counts
interface configuration state

Imported Objects

From CTRON-MIB-NAMES

ctCSMACD

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter

OIDs

OID symbolic	OID numeric	Type	Access	Description
ctFnbCSMACD	1.3.6.1.4.1.52.4.1.2.4.1.1
ctFnbCSMACDTable	1.3.6.1.4.1.52.4.1.2.4.1.1.1		not-accessible	A list of entries that provide connection status of CSMA/CD subsystems, for the FNB.
ctFnbCSMACDEntry	1.3.6.1.4.1.52.4.1.2.4.1.1.1.1		not-accessible	An entry in the ctFnbCSMACDTable containing objects that provide FNB connection status for a CSMA/CD subsystem.
INT ctFnbCSMACDIndex	1.3.6.1.4.1.52.4.1.2.4.1.1.1.1.1	INTEGER	read-write	An unique value for each CSMACD subsystem. Its value ranges between 1 and chassisSlots. The value for each interface must remain constant, at least, from one re-initialization of the entity's network management system to the next re-initialization.
INT ctFnbConnect	1.3.6.1.4.1.52.4.1.2.4.1.1.1.1.2	INTEGER	read-write	Denotes the connection status of the CSMA/CD board to the inter-RIC bus. The values of 1, 2, and 4 define connection status of connect for the subsystem, values 5 and 6 define connection status of subnet connect for the subsystem, value 8 is defined as a front panel connection on the module, and a value of 3 defines disconnect status.
CTR ctFnbPortChanges	1.3.6.1.4.1.52.4.1.2.4.1.1.1.1.3	Counter	read-only	Denotes the number of times any port on the given MIM has changed it's connection to the inter-RIC bus.
ctFnbPortConnect	1.3.6.1.4.1.52.4.1.2.4.1.2
ctFnbPortConnectTable	1.3.6.1.4.1.52.4.1.2.4.1.2.1		not-accessible	This table is used to control port association on ethernet devices. Only those boards that support port switching will be listed in this table.
ctFnbPortConnectEntry	1.3.6.1.4.1.52.4.1.2.4.1.2.1.1		not-accessible	Describes a specific port connection entry.
INT ctFnbPortConnectBoardIndex	1.3.6.1.4.1.52.4.1.2.4.1.2.1.1.1	INTEGER	read-only	An instance of a board for which this port assignment relationship exists.
INT ctFnbPortConnectPortIndex	1.3.6.1.4.1.52.4.1.2.4.1.2.1.1.2	INTEGER	read-only	An instance of a port for which this assignment relationship exists.
INT ctFnbPortConnectPortAssignment	1.3.6.1.4.1.52.4.1.2.4.1.2.1.1.3	INTEGER	read-write	The specific channel that the port is assigned.
INT ctFnbPortCompID	1.3.6.1.4.1.52.4.1.2.4.1.2.1.1.4	INTEGER	read-only	This is the component ID as defined in the chassis MIB that this port is associated with. These components will be repeater components.
CTR ctFnbPortConnectionChanges	1.3.6.1.4.1.52.4.1.2.4.1.2.2	Counter	read-only	Maintains the number of times any port within the mangement domain of this MIM changes it's port assignment.

RFC description

Manages CSMA/CD Ethernet subsystem connection status and FNB integration on Cabletron devices.

Start monitoring Cabletron/Enterasys Ethernet switch or hub (CSMA/CD interface stats) 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 CTRON-CSMACD-MIB

What Is CTRON-CSMACD-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description