Use a command similar to the following to set the buffer space to an appropriate size on your system:
/sbin/sysctl -w net.core.rmem_max=value /sbin/sysctl -w net.core.wmem_max=value
On most platforms, the default value for rmem_max is set to about 128KB, which is too small for the Cluster Edition. Increase rmem_max to the largest value your platform allows (1 megabyte is a good starting value):
/sbin/sysctl -w net.core.rmem_max=1048576
Use a command similar to the following to set the buffer space to an appropriate size on your system:
ndd -set /dev/udp udp_max_buf value
