Product specifications

Efficient Networks
®
Router family
Technical Reference Guide
Chapter 7: Monitoring System Performance
Efficient Networks
®
Page 7-1
CHAPTER 7
CHAPTER 7 MONITORING SYSTEM
PERFORMANCE
This chapter discusses the tools available to monitor and troubleshoot the router’s
operation as well as survey network functions.
Syslog Client
The router can act as a Syslog client, automatically sending system event messages
to one or more Unix Syslog servers. (For example, if you request an IP filter watch,
the messages are sent to the Syslog servers; see the eth ip filter command.)
Messages generated by the router and sent to a Syslog server are sent to facility
local0 with priority notice.
To send messages to Syslog servers, the router must know:
• The Syslog port number, and
• The IP address(es) of the Syslog servers.
To disable, re-enable, or redefine the Syslog port, use the system syslogport
command.
The router can learn the IP addresses of Syslog servers in two ways:
• Via DHCP. The router can, under certain circumstances, send out a DHCP
message and learn the IP address(es) of Syslog servers. For more
information, see “DHCP Client Requests” on page 4-3.
• By explicit configuration. To configure the IP address of a Syslog server, use
the system addsyslogserver command.
You can limit the Syslog server addresses that the router learns through DHCP. To do
so, set a filter for valid Syslog server addresses using the system addsyslogfilter
command.