ADTRAN Express 6120 Instrukcja Obsługi Pobierz pdf (Strona 128)

Appendix C. SNMP

C-2 Express 6100/6120 User Manual 61200176L1-1

er collects all the data from the various network devices and presents

it in a consistent form.

Using SNMP Version1, thenetwork manager canissue three typesof

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.

• Tra p: Thisisanunsolicitedmessageissuedbyanetworkdevice

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.

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