RC-DIAG-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsRC-DIAG-MIB

Organization: Bay Networks, Rapid-City Group

Last Updated: 2005-10-12

Category: Diagnostics and Testing, Nortel Enterprise Data

Description: Provides diagnostic test management including loopback and self-test operations on Bay Networks Rapid-City series switches.

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 RC-DIAG-MIB?

RC-DIAG-MIB is a Nortel/Bay Networks enterprise MIB for the Rapid-City/Accelar switch product family, providing diagnostic and troubleshooting facilities including port mirroring and packet capture. It exposes objects to configure port-based traffic mirroring (mirrored and mirroring port assignments) and to trigger/inspect packet capture (pcap) and other diagnostic test types on the switch. Its monitoring value lies in verifying and troubleshooting hardware-level traffic-forwarding behavior -- confirming mirroring configuration is active as intended and using diagnostic test results to isolate a faulty port or forwarding path -- rather than reporting general environmental metrics. As an Accelar-family enterprise MIB it has no strong dependency on external standards MIBs beyond standard SNMP conventions, though it complements the RC-PORT-MIB's port objects. It is used in enterprise/campus network deployments running Nortel Accelar/Ethernet Routing Switch hardware where network engineers need to mirror traffic to an analyzer or run built-in diagnostics to isolate a hardware fault. Engineers can download the RC-DIAG-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RC-DIAG-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

  • Nortel/Bay Networks Rapid-City Accelar switch

Monitoring Examples

A network engineer troubleshooting a suspected bad port would configure rcMirrorByPortEnable along with rcMirrorByPortMirrorPort, rcMirrorByPortMirroredPortOne, and rcMirrorByPortMirroredPortTwo (or the corresponding rcDiagMirrorByPortTable/Entry) to mirror traffic from a suspect port to an analyzer port for inspection. rcDiagPcap can be used to initiate an on-box packet capture for deeper analysis, and rcTestTypes together with rcMirrorSaveConfig lets the engineer select and persist the diagnostic test configuration. This is a configuration/diagnostics-triggering MIB rather than a continuous polling target.

What Can Be Monitored

  • port mirroring configuration
  • mirrored/mirroring port assignments
  • on-box packet capture (pcap)
  • port diagnostic test results
Imported Objects

From IF-MIB

InterfaceIndex

From RAPID-CITY

EnableValue
rcDiagOBJECT-IDENTITY
rcMirrorOBJECT-IDENTITY

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TruthValue
OIDs

RFC description

Diagnostics MIB module used to configure and execute diagnostic tests on network devices, particularly for cable modem and network interface testing and fault identification.

Start monitoring Nortel/Bay Networks Rapid-City Accelar switch (port mirroring/packet-capture diagnostics) 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 RC-DIAG-MIB