Cisco Cisco Web Security Appliance S170 사용자 가이드
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Cisco IronPort AsyncOS 7.7.5 for Web User Guide
Chapter 22 Reporting
SNMP Monitoring
Hardware Traps
lists the temperature and hardware conditions that cause a hardware trap to be sent:
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). It is a good idea to poll for the hardware status tables and identify possible
hardware failures before they become critical. Temperatures within 10 per cent of the critical value may
be a cause for concern.
every 5 seconds. The other traps are failure condition alarm traps — they are sent once when the state
changes (healthy to failure). It is a good idea to poll for the hardware status tables and identify possible
hardware failures before they become critical. Temperatures within 10 per cent of the critical value may
be a cause for concern.
Note that failure condition alarm traps represent a critical failure of the individual component, but may
not cause a total system failure. For example, a single fan or power supply can fail on a S650 appliance
and the appliance will continue to operate.
not cause a total system failure. For example, a single fan or power supply can fail on a S650 appliance
and the appliance will continue to operate.
SNMP Traps
SNMP provides the ability to send traps, or notifications, to advise an administration application (an
SNMP management console, typically) 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 IronPort 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
SNMP management console, typically) 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 IronPort 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.
SNMP traps from the appliance.
You can configure SNMP traps (enable or disable specific traps) when you enable SNMP for an
interface. To specify multiple trap targets: when prompted for the trap target, you may enter up to 10
comma separated IP addresses.
interface. To specify multiple trap targets: when prompted for the trap target, you may enter up to 10
comma separated IP addresses.
CLI Example
In the following example, the
snmpconfig
command is used to enable SNMP on the “PublicNet”
interface on port 161. A passphrase for version 3 is entered and then re-entered for confirmation. The
system is configured to service version 1 and 2 requests, and the community string
system is configured to service version 1 and 2 requests, and the community string
public
is entered for
GET requests from those versions 1 and 2. The trap target of
10.1.1.29
is entered. Finally, system
location and contact information is entered.
Table 22-5
Hardware Traps: Temperature and Hardware Conditions
Model
High Temp
(Ambient)
(Ambient)
Fan Failure
Power Supply
RAID
Link
S160/S350/S360/S650
/S660
/S660
47C
0 RPMs
Status Change
Status Change
Status Change
example.com> snmpconfig
Current SNMP settings:
SNMP Disabled.