Brocade BigIron RX Series Configuration Guide - Manual (Page 1449)

BigIron RX Series Configuration Guide 1371
53-1002484-04
Chapter
52
Continuous System Monitor
In this chapter
• Continuous system monitor overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1371
Continuous system monitor overview
Continuous system monitoring (Sysmon) is implemented in BigIron RX to monitor the overall
system’s health. The Sysmon makes the monitor service system-wide and modular. It monitors
different system components of a router or a switch to determine if those components are
operating correctly. The central concept of Sysmon is monitoring the system with the defined event
types which periodically monitors the system for CRC errors, errors on TM and FE links, memory
errors, clock synchronization errors etc. Sysmon runs as a background process. It has a default
policy that controls what is monitored and what actions will be taken if a fault is detected. Sysmon
generates the following log outputs for logging the monitoring information.
• Syslog
• Sysmon internal log
NOTE
Syslog reported Sysmon alarm messages should be reported to Brocade Technical Support.
Internal log are generated to give more information to Brocade Technical Support when a problem
occurs. The existence of internal logs doesn’t mean the system is experiencing problems, or that
some actions need to be taken. If Sysmon detects a failure, it will report the failure by generating
the syslog messages. In some cases the failed device will be shutdown or isolated from the
system. In other cases the software may attempt to recover the failed device.
The Sysmon is a collection of event types that are monitored periodically. Sysmon detects errors
based on polling and interrupt. Polling is reading specific hardware registers. Interrupt is an
instantaneous event detection by Sysmon. Sysmon continuously monitor management processor
and interface processors via polling and interrupt methods. Once Sysmon detects a threshold
(threshold is the number of error events detected by Sysmon), Sysmon logs the event in the internal
Sysmon log and Sysmon will take an action based on the event type. There are following action
types.
• Syslog: Generates a message in the Syslog
• Shutdown link: Disables the link between the TM and the FE
• Shutdown TM: Disables the TM and network ports.
• Shutdown NP: Disables the NP and Network ports.
By default, SYSMON is enabled to monitor and detect all the defined event types. Currently, the
following Sysmon event types are defined and implemented.
• TM_LINK - Monitoring TM serdes links.