CISCO-PMON-MIB

Description: Monitors performance counters for interfaces and services on Cisco optical and carrier Ethernet platforms.

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CISCO-PMON-MIB is a Cisco-specific MIB that provides port monitoring information for Cisco optical and carrier Ethernet platforms, grouping performance statistics by logical port groups rather than single interfaces. It exposes performance-counter data: grouped port statistics keyed by a port group index and statistics type, with each entry tying a set of interfaces (via an interface index list) to a specific statistic value. In monitoring terms it is used mainly for tracking interface- and service-level performance counters across aggregated port groups, helping detect throughput degradation, error accumulation, or abnormal traffic patterns on carrier Ethernet or optical transport ports rather than reporting classic hardware health like temperature or power supply status. It relies on IF-MIB-style interface indexing (via ciscoPmonPortGroupIfIndexList) to correlate port groups back to standard interface objects, and it also defines its own notification, compliance, and group conformance structure. It is typically deployed on Cisco carrier Ethernet switches and optical transport platforms, where CISCO-PMON-MIB SNMP monitoring provides the per-port-group performance visibility needed for SLA and capacity management.

An administrator would poll the ciscoPmonPortGroupStatsTable, indexed by ciscoPmonPortGroupIndex and ciscoPmonPortGroupStatsType, to retrieve ciscoPmonPortGroupStatsValue for a group of interfaces identified in ciscoPmonPortGroupIfIndexList. A sudden spike in a statistic type such as an error or discard counter across the group would reveal an emerging problem affecting all interfaces sharing that port group, such as a shared uplink or optical module fault. The ciscoPmonMIBNotifs objects could also be checked for related threshold-crossing notifications tied to this data.

Cisco Port Monitor (PMON) MIB for proactive real-time monitoring of port metrics on Cisco MDS 9000 fabric switches, generating alerts via SNMP traps and syslog when configured thresholds are exceeded.