RC-2K-ATM-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsRC-2K-ATM-MIB

Organization: Bay Networks, Rapid-City Group

Last Updated: 2004-07-21

Category: ATM, Nortel Enterprise Data

Description: Manages ATM module configuration, virtual circuits, and statistics on Bay Networks Rapid-City 2000 series switches.

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What Is RC-2K-ATM-MIB?

RC-2K-ATM-MIB is a Bay Networks (Nortel) enterprise MIB for the Rapid-City/Accelar 2000 series switch family's ATM module, covering ATM port configuration, virtual circuits, and statistics, part of the legacy ATM/Ethernet switching technology area. It exposes per-port ATM configuration such as VPI/VCI bit widths, media type, framing mode, clock source, line speed, scrambling, loopback mode, and the port's MAC address, organized in a port table indexed by interface. This data is used to monitor the hardware status and configuration correctness of ATM interface cards: an operator can confirm a port's loopback mode is disabled during normal operation, verify line speed and framing match the expected circuit type, and check clock source configuration to avoid clock slips affecting cell transport. It is a legacy Bay Networks/Nortel enterprise MIB likely coexisting with the standard ATM-MIB (RFC 2515) for higher-layer ATM connection objects. It is deployed on older Bay Networks/Nortel Accelar/Rapid-City switches historically used in enterprise and carrier backbone networks. Engineers can download the RC-2K-ATM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RC-2K-ATM-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

  • Bay Networks/Nortel Accelar/Rapid-City 2000 series switch

Monitoring Examples

An operator would poll rc2kAtmPortTable/rc2kAtmPortEntry indexed by rc2kAtmPortIfIndex to check rc2kAtmPortLineSpeed and rc2kAtmPortFramingMode against expected provisioning, and verify rc2kAtmPortLoopBackMode is set to normal (not looped) to rule out a technician-left test condition causing a circuit outage. Checking rc2kAtmPortClockSource and rc2kAtmPortScrambleEnable would help diagnose cell errors caused by clocking or scrambling mismatches between the two ends of an ATM link.

What Can Be Monitored

  • ATM port line speed
  • framing mode
  • clock source
  • loopback mode
  • VPI/VCI bit configuration
  • port MAC address
Imported Objects

From IF-MIB

InterfaceIndex

From RAPID-CITY

IdList

From RC-2K-MIB

rc2kAtmOBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Counter64
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
MacAddress
RowStatus
TruthValue

How to Use in IPNetwork Monitor

Example using rc2kAtmPvcOamLbRequestSent OID:

Select a Bay Networks/Nortel Accelar/Rapid-City 2000 series switch (ATM port configuration/statistics) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type rc2kAtmPvcOamLbRequestSent into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports the number of OAM loopback request sent. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Bay Networks Accelar RC-2K ATM port configuration and management MIB.

Start monitoring Bay Networks/Nortel Accelar/Rapid-City 2000 series switch (ATM port configuration/statistics) 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-2K-ATM-MIB