NEC INTELLIGENT L2 SWITCH N8406-022A Application Manual

Also see for N8406-022A: Reference guide

Contents

NEC INTELLIGENT L2 SWITCH N8406-022A Application Manual Manual pdf 74 page image

Remote monitoring 74Remote monitoringIntroductionRemote Monitoring (RMON) allows network devices to exchange network monitoring data.RMON performs the following major functions:• Gathers cumulative statistics for Ethernet interfaces• Tracks a history of statistics for Ethernet interfaces• Creates and triggers alarms for user-defined eventsOverviewThe RMON MIB provides an interface between the RMON agent on the switch and an RMON managementapplication. The RMON MIB is described in RFC 1757.The RMON standard defines objects that are suitable for the management of Ethernet networks. The RMON agentcontinuously collects statistics and proactively monitors switch performance. RMON allows you to monitor trafficflowing through the switch.The switch supports the following RMON Groups, as described in RFC 1757:• Group 1: Statistics• Group 2: History• Group 3: Alarms• Group 9: EventsRMON group 1 — statisticsThe switch supports collection of Ethernet statistics as outlined in the RMON statistics MIB, in reference toetherStatsTable. You can enable RMON statistics on a per-port basis, and you can view them using the/stat/port x/rmon command. RMON statistics are sampled every second, and new data overwrites any olddata on a given port.NOTE: RMON port statistics must be enabled for the port before you can view RMON statistics.Configuring RMON Statistics (AOS CLI example)1. Enable RMON on each port where you wish to collect RMON statistics.>> /cfg/port 23/rmon (Select Port 23 RMON)>> Port 23 RMON# ena (Enable RMON)>> Port 23 RMON# apply (Make your changes active)>> Port 23 RMON# save (Save for restore after reboot)