Netgear XCM8810 - 8800 SERIES 10-SLOT CHASSIS SWITCH ユーザーズマニュアル
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Chapter 8. Status Monitoring and Statistics
NETGEAR 8800 User Manual
Occurred : # of times this event has occurred since last clear or reboot
Flags : (*) Not all applications responded in time with there count values
In(cluded): Set to Y(es) if one or more targets filter includes this event
Notified : # of times this event has occurred when 'Included' was Y(es)
Displaying Debug Information
By default, a switch does not generate events of severity
Debug-Summary
,
Debug-Verbose
, and
Debug-Data
unless the switch is in debug mode. Debug mode causes a performance penalty,
so it should only be enabled for specific cases where it is needed. To place the switch in
debug mode, use the following command:
debug mode, use the following command:
enable log debug-mode
When the switch is in debug-mode, any filters configured for your targets still affect which
messages are passed on or blocked.
messages are passed on or blocked.
Logging Configuration Changes
XCM8800 allows you to record all configuration changes and their sources that are made
using the CLI by way of telnet or the local console. The changes cause events that are
logged to the target logs. Each log entry includes the user account name that performed the
change and the source IP address of the client (if telnet was used). Configuration logging
applies only to commands that result in a configuration change.
using the CLI by way of telnet or the local console. The changes cause events that are
logged to the target logs. Each log entry includes the user account name that performed the
change and the source IP address of the client (if telnet was used). Configuration logging
applies only to commands that result in a configuration change.
To enable configuration logging, use the following command:
enable cli-config-logging
To disable configuration logging, use the following command:
disable cli-config-logging
CLI configuration logging is disabled by default.
Using sFlow
sFlow
®
is a technology for monitoring traffic in data networks containing switches and routers.
It relies on statistical sampling of packets from high-speed networks, plus periodic gathering
of the statistics. A User Datagram Protocol (UDP) datagram format is defined to send the
information to an external entity for analysis. sFlow consists of a Management Information
Base (MIB) and a specification of the packet format for forwarding information to a remote
agent. Details of sFlow specifications can be found in RFC 3176, and specifications and more
information can be found at the following website:
of the statistics. A User Datagram Protocol (UDP) datagram format is defined to send the
information to an external entity for analysis. sFlow consists of a Management Information
Base (MIB) and a specification of the packet format for forwarding information to a remote
agent. Details of sFlow specifications can be found in RFC 3176, and specifications and more
information can be found at the following website:
The XCM8800 implementation is based on sFlow version 5, which is an improvement from
the revision specified in RFC 3176. Additionally, the switch hardware allows you to set the
hardware sampling rate independently for each module on the switch, instead of requiring
the revision specified in RFC 3176. Additionally, the switch hardware allows you to set the
hardware sampling rate independently for each module on the switch, instead of requiring