Cisco Nexus 3548 series Configuration Manual page 19

Overview
Feature
RMON
SPAN
Cisco Nexus 3548 Switch NX-OS System Management Configuration Guide, Release 7.x
System Management Features
Description
RMON is an Internet Engineering Task Force (IETF)
standard monitoring specification that allows various
network agents and console systems to exchange
network monitoring data. Cisco NX-OS supports
RMON alarms, events, and logs to monitor Cisco
NX-OS devices.
The Switched Port Analyzer (SPAN) feature
(sometimes called port mirroring or port monitoring)
selects network traffic for analysis by a network
analyzer. The network analyzer can be a Cisco
SwitchProbe, a Fibre Channel Analyzer, or other
Remote Monitoring (RMON) probes.
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