This section describes some of the UDP tunable parameters.
The default maximum UDP socket datagram size in bytes. For more information, see udp_max_buf.
8192 bytes
4096 to 65,536
Yes
Note that an application can use setsockopt(3XNET) SO_SNDBUF to change the size for an individual socket. In general, you do not need to change the default value.
Unstable
The default maximum UDP socket receive buffer size in bytes. For more information, see udp_max_buf.
8192 bytes
4096 to 65,536
Yes
Note that an application can use setsockopt(3XNET) SO_RCVBUF to change the size for an individual socket. In general, you do not need to change the default value.
Unstable
Changing the following parameters is not recommended unless there are extenuating circumstances that are described with each parameter.
Controls how large send and receive buffers (in bytes) can be for a UDP socket.
262,144 bytes
65,536 to 1,073,741,824
Yes
Do not change the value. If this parameter is set to a very large value, UDP socket applications can consume too much memory.
Unstable