Snmp; Figure 1-21: Sntp - Allied Telesis AT-AR256E Reference Manual

4-port adsl router

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Timeout – if the router fails to connect to a SNTP server within the timeout period, it will

retry the connection.

Polling Interval – time between a successful connection with a SNTP server and a new

attempt to connect to a SNTP server.

Retry Count – the number of times the router will try to connect to a SNTP server before it

tries to connect to the next server in line.

Time Zone – the time zone of your router.

Day Light – Check/uncheck this option to enable/disable DST (Daylight Saving Time).

SNMP

5.5.9

SNMP (Simple Network Management Protocol) is a troubleshooting and management protocol,

which uses the UDP protocol on port 161 to communicate between clients and servers. SNMP

uses a manager MIB (Management Information Base) agent solution to fulfill the network

management needs. The agent is a separate station that can request data from a SNMP agent in

each of the different managed system on the network. The agent uses the MIBs as dictionaries

of manageable objects. Each SNMP-managed device has at least one agent that can respond to

the queries from the NMS (Network Management Software). The SNMP Agent supports Gets,

Sets and Traps for 4 groups with MIB-II: System, Interface, IP and ICMP. The SNMP Agent

supports three-community names authentication.

See Figure 1-22

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