Allied Telesis AT-S88 - Manual (Page 53)

AT-S88 Management Software User’s Guide
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Trap Receivers
A trap is a signal sent to one or more management workstations by the
switch to indicate the occurrence of a particular operating event on the
device. There are numerous operating events that can trigger a trap. For
instance, resetting the switch is an example of an occurrence that can
cause a switch to send a trap to the management workstations. You can
use traps to monitor activities on the switch.
Trap receivers are the devices, typically management workstations or
servers, that you want to receive the traps sent by the switch. You specify
the trap receivers by their IP addresses. You assign the IP addresses to
the community strings.
Each community string can have up to eight trap IP addresses.
It does not matter which community strings you assign your trap receivers.
When the switch sends a trap, it looks at all the community strings and
sends the trap to all trap receivers on all community strings. This is true
even for community strings that have a access mode of only Read.
If you are not interested in receiving traps, then you do not need to enter
any IP addresses of trap receivers.
Default SNMP
Community
Strings
The AT-S88 management software provides two default community
strings: public and private. The public string has an access mode of Read
Only and the private string has an access mode of Read/Write. If you
activate SNMP management on the switch, you change the status of the
private community string from open to closed to prevent unauthorized
changes to the switch.