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Appendix C. SNMP
er collects all the data from the various network devices and presents
it in a consistent form.
Using SNMP Version 1, the network manager can issue three types of
commands:
•
GetRequest: This command retrieves a single item or the first in
a series from a network device.
•
GetNextRequest: This command retrieves the next item in a
series from a network device.
•
SetRequest: This command writes information to a network
device.
The network device issues two types of messages:
•
GetResponse: This message is the response to a network
manager GetRequest or GetNextRequest command.
•
Trap: This is an unsolicited message issued by a network device
to report an operational anomaly or an alarm condition to the
network manager.
These messages are typically encased within informational packets
and transported over the LAN or WAN.
C-2
Express L128FP User Manual
61202070L4-20
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