Cambium Networks cnMatrix EX2028 Handleiding (320 Pagina's)

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L2 Features 80

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Listens for a Broadcast or Multicast Address from one or more broadcast servers.

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Allows configuration of the designated Broadcast or Multicast servers.

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Sends request packet to measure the propagation delay and continues operation in listen-

only mode.

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Abandons the measurement and assumes a default value for the delay, if it does not receive

a reply from the broadcast server.

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The software does not support any authentication schemes.

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When configured to function in Manycast addressing mode, the software delivers the functionality

listed below:

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Sends a client request packet to designated servers.

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Adjusts the TTL field in the IP header for appropriate scope in the client request message.

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Sets the message header to zero, except the Mode, Version Number and optional transmit

Timestamp fields in the client request message.

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Sets the Mode field to three (client) in the client request packet header.

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Avoids sending any request packet with a version number set as zero.

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Allows the administrator to configure the version number field.

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Discovers the version number of the server dynamically.

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Sets the transmit time field in the request packet which allows determining roundtrip delay

and system clock offset relative to the server.

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Sends client request messages periodically.

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Avoids sending client request messages with less than 1-minute periodic interval.

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Stops sending request packets to a particular server when receives a reply with stratum

field set to zero.

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Retransmits a request packet using an exponential-backoff algorithm, after receiving the

reply packet start the field set as zero.

Default Values

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The default SNTP client version: v4.

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The default SNTP addressing mode is unicast.

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The SNTP to send status requests is disabled by default.

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The default SNTP unicast server: IPv4.

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The default value for the maximum poll retries: 3.

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The default value for the maximum poll interval timeout: 5 seconds.

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