CISCO-OTN-IF-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-OTN-IF-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2016-05-25

Category: Cisco Devices, Optical and WDM

Description: Manages Optical Transport Network (OTN/G.709) interface configuration and performance on Cisco optical platforms.

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 CISCO-OTN-IF-MIB?

CISCO-OTN-IF-MIB is a Cisco proprietary MIB module for managing Optical Transport Network (OTN/ITU-T G.709) interfaces on Cisco DWDM optical transport platforms, covering both physical-layer configuration and performance monitoring of optical channel interfaces. It belongs to Cisco's optical networking MIB family and exposes controller-level configuration (loopback mode, wavelength, laser admin/operational status) alongside protocol-specific performance-monitoring (PM) counters such as pre-FEC bit error rate and dispersion-compensation status. This is a strong hardware/performance monitoring MIB: it lets operators check laser operational health, OTN framing status, forward error correction (FEC) mode, and pre-FEC BER trends to detect early signs of optical link degradation before it causes service-affecting errors. Consistent with typical PM MIBs, it supports threshold-based alerting during accumulation cycles when a parameter crosses a configured error level, and it builds on general ITU-T G.709 OTN and DWDM optical-transport concepts. It is deployed on Cisco DWDM/optical transport platforms used by service providers for long-haul and metro optical networks. Engineers can download the CISCO-OTN-IF-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-OTN-IF-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 DWDM/OTN optical transport platforms

Monitoring Examples

An administrator would poll coiIfControllerTable/coiIfControllerEntry to check coiIfControllerLaserAdminStatus versus coiIfControllerLaserOperStatus to confirm a DWDM channel's laser is administratively enabled and actually up, and check coiIfControllerOtnStatus and coiIfControllerFECMode to verify OTN framing and forward error correction are functioning as configured. coiIfControllerPreFECBERMantissa would be tracked over time as an early-warning performance indicator -- a rising pre-FEC BER signals fiber or optics degradation before hard errors occur. coiIfControllerTDCOperStatus and coiIfControllerTDCOperSetting would additionally be checked to confirm chromatic dispersion compensation is correctly tuned for the wavelength in use (coiIfControllerWavelength).

What Can Be Monitored

  • laser admin/operational status
  • wavelength assignment
  • OTN framing status
  • FEC mode
  • pre-FEC bit error rate
  • chromatic dispersion compensation status
Imported Objects

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From IF-MIB

ifIndexOBJECT-TYPE
ifNameOBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus
StorageType
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using coiOtnNearEndCurrentFCs OID:

Select a Cisco DWDM/OTN optical transport platform 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 coiOtnNearEndCurrentFCs 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. The counter associated with the number of failures encountered on the near end of interface in the current interval of type coiOtnNearEndCurIntervalType. 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 between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Manages DWDM optical channel interfaces and performance monitoring for OTN (Optical Transport Network) devices.

Start monitoring Cisco DWDM/OTN optical transport platforms 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 CISCO-OTN-IF-MIB