A3COM-RIP-IPEXTNS-R4-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsA3COM-RIP-IPEXTNS-R4-MIB

Category: Routing Protocols, Vendor: 3Com

Description: Manages 3Com-specific RIP routing protocol extensions including advanced filtering, redistribution, and timer configuration beyond the standard RIPv2-MIB.

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What Is A3COM-RIP-IPEXTNS-R4-MIB?

This is a 3Com-specific extension MIB that augments the standard RIPv2-MIB with additional configuration objects for 3Com routers and switches, covering advanced RIP route filtering, redistribution between routing protocols, and timer tuning beyond what the IETF RIPv2-MIB defines. It is a configuration-oriented module rather than one exposing hardware sensors, focusing on which routes are filtered, how routes from other protocols are redistributed into RIP, and how RIP update/timeout/garbage-collection timers are set. Its hardware/software status relevance is indirect: it lets an operator monitor and adjust the software-level routing behavior of a 3Com device's RIP process, a key part of overall network-layer software health rather than physical component monitoring. It explicitly depends on and extends the standard IETF RIPv2-MIB, adding 3Com-proprietary objects layered on top of that base standard. It is typically deployed on 3Com enterprise routers and Layer 3 switches running RIP as an interior routing protocol, where administrators need finer control than the base RIPv2-MIB provides. Engineers can download the A3COM-RIP-IPEXTNS-R4-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-RIP-IPEXTNS-R4-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

  • 3Com enterprise router
  • 3Com Layer 3 switch

Monitoring Examples

No specific object or table names are available for this module in the source excerpt, so a concrete polling walkthrough cannot be grounded in real identifiers. Based on its stated purpose, an administrator would typically poll extended RIP filtering and redistribution tables (analogous to the base RIPv2-MIB's rip2IfConfTable) to confirm route filters and redistribution policies are applied as intended on a given interface. Unexpected route counts or missing redistributed routes would point to a misconfigured filter or timer setting in this extension module.

What Can Be Monitored

  • RIP route filter configuration
  • route redistribution policy
  • RIP timer settings
Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

IpAddress
enterprises
OIDs

RFC description

Extends RIP (Routing Information Protocol) management for IP networks on 3Com routers, supporting route update intervals and interface configuration.

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Download A3COM-RIP-IPEXTNS-R4-MIB