NETLINK-SPECIFIC-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsNETLINK-SPECIFIC-MIB

Category: Network Management, WAN

Description: Defines proprietary management objects for NetLink network interface and link configuration.

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 NETLINK-SPECIFIC-MIB?

NETLINK-SPECIFIC-MIB is a proprietary MIB for NetLink brand network interface/protocol converter devices, covering SNA/SDLC (Synchronous Data Link Control) and related legacy IBM networking link configuration. It exposes objects describing node-level and neighbor-level link status for SDLC/SNA connections, including node identification, neighbor counts, and per-neighbor state, reflecting the device's role as a protocol gateway or converter. This MIB is used for monitoring the operational status of legacy SNA/SDLC links and neighbor relationships rather than classic hardware sensors, helping administrators detect when a node loses neighbor adjacencies or exceeds its configured neighbor limit. It is tied to legacy IBM SNA networking concepts (SDLC) rather than modern IETF standard MIBs. It is typically deployed in legacy environments bridging SNA mainframe traffic over modern IP/WAN infrastructure. Engineers can download the NETLINK-SPECIFIC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NETLINK-SPECIFIC-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

  • NetLink protocol converter
  • legacy SNA/SDLC gateway device

Monitoring Examples

An administrator would poll nsNodTable/nsEntry for a given node to check nsStatus and nsNumNeigh, then cross-reference nsNeighTable/nsNeighEntry (nsNTNode) to see individual neighbor node relationships. A drop in nsNumNeigh below the expected count, or nsStatus indicating a down node, would reveal a lost SDLC link between the gateway and its SNA peer. nsMaxNeigh and nsThisNode provide the configured ceiling and local node identity used to interpret those numbers.

What Can Be Monitored

  • node status
  • neighbor count
  • neighbor node relationships
  • maximum neighbor limit
Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress
NetworkAddress
TimeTicks
enterprises
mgmt

From RFC1213-MIB

DisplayString
PhysAddress
mib-2

From SNMPv2-TC

MacAddress
RowStatus
TimeInterval
OIDs

RFC description

Manages Frame Relay switching, X.25 routing, and SDLC link station configurations for Netlink and Cabletron FRX series switches.

Start monitoring NetLink protocol converter (legacy SNA/SDLC gateway) 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 NETLINK-SPECIFIC-MIB