ADTRAN ATLAS 800PLUS Defining a Trap Destination List, Filtering Traps, Standard Traps

Chapter 9. SNMP Management

TRAPS

An SNMP trap is a message sent by a Network Device, such as the ATLAS, to report an operational anomaly or alarm condition.

DEFINING A TRAP DESTINATION LIST

For each trap event, a trap message will be sent to each member of the Trap Desti- nation List. You can configure this list via Telnet session or VT100 menu.The ATLAS will support up to four trap destinations. By default, the destination list is empty.

To configure the trap destination list, select SNMP/TRAP DESTINATION from the terminal menu (see Table 9-1). Options similar to the following will be dis- played.

Table 9-1. Trap Destination List

IP Address		Community	Trap Filtering
0	0.0.0.0	public	[+]
1	0.0.0.0	public	[+]
2	0.0.0.0	public	[+]
3	0.0.0.0	public	[+]

IP Address is the address of the network management station to which the ATLAS will send the trap. Community is the trap community name used for the selected Network Device. Trap Filtering is a record allowing you to assign thresh- olds to each category of the ATLAS events.

FILTERING TRAPS

You may disable the generation of trap events in three different ways. First, from the user menu, you can select SNMP/TRAP TRANSMISSION to DISABLED. If DISABLED, the ATLAS will not generate any trap messages. Second, trap thresh- olds can be defined to disable specific trap events. Each trap event has a severity level (DISABLED, INFORMATIONAL, NORMAL, WARNING,MINOR, MAJOR, CRITICAL) associated with it. Consider the example of the coldStart trap, a Sys- tem Controller event. If you defined for destination 0 a trap filtering threshold of WARNING for the System Controller, the coldStart trap would not be generated to that destination because the coldStart severity level is defined as NORMAL. Refer to the ATLAS MIB in Appendix X for a description of each enterprise trap event supported by the ATLAS. Finally, certain traps can be controlled though SNMP management of specific MIB variables supported by the ATLAS. These variables will be outlined in the following sections.

STANDARD TRAPS

Table 9-2 describes the standard traps supported by ATLAS.

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