Specify datagram options

Specify the settings for data packets (datagrams) transmitted through multicasting.

Name

Description

MTU

Maximum Transmission Unit, the largest allowed physical data packet size (measured in bytes). Messages larger than the specified MTU are split into smaller packets before they are sent. The default value is 1500, which is also the default on most Windows computers and Ethernet networks.

TTL

Time To Live, the largest allowed number of hops a data packet should be able to travel before it is discarded or returned. A hop is a point between two network devices, typically a router. Default value is 128.

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