SYNOPTICS-BASIC-ETHTOK-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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Category: Legacy and Historical

Description: Manages legacy SynOptics Ethernet and Token Ring hub port state and basic network statistics.

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What Is SYNOPTICS-BASIC-ETHTOK-MIB?

SYNOPTICS-BASIC-ETHTOK-MIB is a legacy vendor MIB from SynOptics, an early networking hardware vendor later folded into Bay Networks/Nortel, that manages basic Ethernet and Token Ring hub agents, exposing agent identity and configuration such as agent type, firmware version, software major/minor version, boot protocol and boot file, authentication-trap enable, physical location, slot ID within a chassis, MIB conformance level, and a list of unauthorized IP addresses detected. It exposes primarily configuration and software-inventory data about the hub's management agent rather than per-port traffic counters. Its monitoring value centers on software/firmware status: administrators check s3AgentFwVer/s3AgentSwMajorVer/s3AgentSwMinorVer to audit which firmware/software build each hub agent runs, s3AgentMySlotId to locate the agent within a multi-slot chassis, and s3AgentUnAuthIp/s3AgentAuthTrap to catch unauthorized management access attempts. It is a self-contained, vendor-specific legacy MIB predating widespread IETF hub/repeater MIB adoption, though it coexists with standard MIB-II data on the same device. It was deployed on legacy SynOptics Ethernet and Token Ring concentrator/hub products common in enterprise networks of the 1990s. Engineers can download the SYNOPTICS-BASIC-ETHTOK-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SYNOPTICS-BASIC-ETHTOK-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

  • SynOptics (Bay Networks/Nortel) legacy Ethernet/Token Ring hub

Monitoring Examples

An operator would poll s3AgentFwVer and s3AgentSwMajorVer/MinorVer across a stack of hubs to confirm all agents are running a consistent firmware/software version before a planned upgrade, flagging any unit still on an old build. Checking s3AgentUnAuthIp after enabling s3AgentAuthTrap would reveal any station that attempted unauthorized SNMP access to a given hub, and s3AgentMySlotId helps map that alert back to a specific physical slot in the chassis.

What Can Be Monitored

  • agent firmware/software version
  • boot protocol and boot file
  • chassis slot identification
  • authentication trap / unauthorized access attempts
  • MIB/feature conformance level
Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress
TimeTicks
enterprises
OIDs

RFC description

Synoptics (Bay Networks) MIB for Ethernet and Token Ring network device monitoring.

Start monitoring SynOptics (Bay Networks/Nortel) Ethernet/Token Ring hubs 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 SYNOPTICS-BASIC-ETHTOK-MIB