Cisco Cisco Web Security Appliance S170 사용자 가이드

Hardware sensors conforming to the Intelligent Platform Management Interface Specification (IPMI) 
report temperature, fan speed, and power supply status.

The number displayed is the number of instances of that object that can be monitored. For example, you 
can query the RPMs for 4 fans in the S350 appliance.

Status change traps are sent when the status changes. Fan Failure and high temperature traps are sent 
every 5 seconds. The other traps are failure condition alarm traps - they are sent once when the state 
changes (healthy to failure). Temperatures within 10 per cent of the critical value may be a cause for 
concern.

Failure condition alarm traps represent a critical failure of the individual component, but may not cause 
a total system failure. 

SNMP provides the ability to send traps, or notifications, to advise an administration application when 
one or more conditions have been met. Traps are network packets that contain data relating to a 
component of the system sending the trap. Traps are generated when a condition has been met on the 
SNMP agent (in this case, the Cisco Web Security Appliance appliance). After the condition has been 
met, the SNMP agent then forms an SNMP packet and sends it over port 162, the standard SNMP trap 
port. In the example below, the trap target of 

10.1.1.29

 and the Trap Community string are entered. This 

is the host running the SNMP management console software that will receive the SNMP traps from the 
appliance. 

1

2

1

2

6

1

4

2

6

6

1

4

2

4

6

1

4

2

6

6

1

4

2

6

6

47C 

0 RPMs 

Status Change

Status Change

Status Change