CERENT-GENERIC-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CERENT-GENERIC-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2004-10-01

Category: Optical and WDM, Vendor: Cisco ONS/Cerent

Description: Provides generic management objects for Cisco/Cerent ONS optical networking equipment including system identity and 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 CERENT-GENERIC-MIB?

CERENT-GENERIC-MIB provides generic system-level management objects for Cisco optical networking equipment originating from the Cerent acquisition, specifically the ONS 15327 and ONS 15310 platforms used in metro optical transport networks. It exposes system identity and configuration data such as software version, multishelf configuration status, node time, and notification settings, alongside a dedicated alarm table tracking active alarms with object type and slot number context. In monitoring terms it supports both software and hardware status monitoring -- cerentGenericSoftwareVersion tracks the running firmware, cerentGenericNodeTime and cerentGenericLastChangeTime help correlate event timing, and the cerentGenericAlarmTable is the primary fault-monitoring mechanism, surfacing per-slot alarm conditions with a running cerentGenericAlarmCount. It works alongside more specific Cerent/Cisco ONS MIBs covering individual card and interface types, forming part of a broader Cisco ONS optical management MIB family. It would typically be deployed on Cisco ONS 15327/15310 optical transport nodes in a metro or access network. Engineers can download the CERENT-GENERIC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CERENT-GENERIC-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

  • Cisco ONS 15327 optical transport node
  • Cisco ONS 15310 optical transport node

Monitoring Examples

An administrator would poll cerentGenericAlarmCount and walk cerentGenericAlarmTable/cerentGenericAlarmEntry to see active alarms by cerentGenericAlarmSlotNumber and cerentGenericAlarmObjectType, quickly identifying which shelf slot is reporting a fault. cerentGenericSoftwareVersion would be checked after a maintenance window to confirm the expected firmware is running, while cerentGenericSentNotifications and cerentGenericEnableNotification confirm the node is actively forwarding alarm traps to the NMS. cerentGenericMultishelfEnabled would be checked on nodes expected to be part of a multishelf configuration to confirm that mode is correctly enabled.

What Can Be Monitored

  • active alarm count and per-slot alarm detail
  • software version
  • node time synchronization
  • multishelf configuration status
  • notification/trap forwarding status

This MIB depends on

Related MIBs

Imported Objects

From CERENT-GLOBAL-REGISTRY

cerentGenericOBJECT-IDENTITY
cerentModulesOBJECT-IDENTITY
cerentRequirementsOBJECT-IDENTITY

From CERENT-TC

CerentAlarmServiceAffecting
CerentAlarmSeverity
CerentAlarmStatus
CerentLocation
CerentMonitorType
CerentNotificationClass
CerentPeriod
CerentPortNumber

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using cerentGenericSentNotifications OID:

Select a Cisco ONS 15327/15310 optical transport node 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 cerentGenericSentNotifications into the Find box to locate it in the OID tree, then select it and click OK. It reports a count of v1+v2 notifications sent out by the agent. 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

Vendor-specific MIB for Cerent optical networking equipment; defines generic managed objects for network monitoring and configuration.

Start monitoring Cisco ONS 15327/15310 optical transport nodes 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 CERENT-GENERIC-MIB