Chapter 28 System
NXC Series User’s Guide
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• Trap - Used by the agent to inform the manager of some events.
28.11.1 Supported MIBs
The NXC supports MIB II that is defined in RFC-1213 and RFC-1215. The NXC also supports private
MIBs (zywall.mib and zyxel-zywall-ZLD-Common.mib) to collect information about CPU and
memory usage. The focus of the MIBs is to let administrators collect statistical data and monitor
status and performance. You can download the NXC’s MIBs from www.zyxel.com.
28.11.2 SNMP Traps
The NXC will send traps to the SNMP manager when any one of the following events occurs.
Table 165 SNMP Traps
OBJECT LABEL OBJECT ID DESCRIPTION
Cold Start 1.3.6.1.6.3.1.1.5.1 This trap is sent when an agent reinitialized its configuration
tables.
linkDown 1.3.6.1.6.3.1.1.5.3 This trap is sent when the Ethernet link is down.
linkUp 1.3.6.1.6.3.1.1.5.4 This trap is sent when the Ethernet link is up.
authenticationFailure 1.3.6.1.6.3.1.1.5.5 This trap is sent when an SNMP request comes from non-
authenticated hosts.
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