Siemens S323, S223 Remote Monitoring Rmon, Rmon History, SWITCHconfig# show rmon-history config

UMN:CLI	User Manual
	SURPASS hiD 6615 S223/S323 R1.5

7.4Remote Monitoring (RMON)

Remote Monitoring (RMON) is a function to monitor communication status of devices connected to Ethernet at remote place. While SNMP can give information only about the device mounted SNMP agent, RMON gives information about overall segments including devices. Thus, user can manage network more effectively. For instance, in case of SNMP it is possible to be informed traffic about certain ports but through RMON you can monitor traffics occurred in overall network, traffics of each host connected to segment and cur- rent status of traffic between hosts.

Since RMON processes quite lots of data, its processor share is very high. Therefore, administrator should take intensive care to prevent performance degradation and not to overload network transmission caused by RMON. There are nine defined RMON MIB groups in RFC 1757: Statistics, History, Alarm, Host, Host Top N, Matrix, Filter, Packet Capture and Event. The system supports two MIB groups of them, most basic ones: Sta- tistics (only for uplink ports) and History.

7.4.1RMON History

RMON history is periodical sample inquiry of statistical data about each traffic occurred in Ethernet port. Statistical data of all ports are pre-configured to be monitored at 30-minute interval, and 50 statistical data stored in one port. It also allows you to configure the time interval to take the sample and the number of samples you want to save.

The following is an example of displaying the default configuration of RMON history.

SWITCH(config)# show rmon-history config 5

RMON History configuration:

===========================

history index	: 5
data source	: 0/1 (1)
buckets requested	: 50
buckets granted	: 50
interval time (s)	: 1800
owner	: none
status	: under create
SWITCH(config)#

To open RMON-historymode, use the following command.

Command	Mode	Description
rmon-history <1-65535>	Global	Opens RMON-history Configuration mode.
		1-65535: index number

The following is an example of opening RMON-history Configuration mode with index number 5.

SWITCH(config)# rmon-history5

SWITCH(config-rmonhistory[5])#

Input a question mark <?> at the system prompt on RMON Configuration mode if you

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