1. Overview of Oracle Solaris System Tuning
2. Oracle Solaris Kernel Tunable Parameters
4. Internet Protocol Suite Tunable Parameters
Where to Find Tunable Parameter Information
Overview of Tuning IP Suite Parameters
Internet Request for Comments (RFCs)
ip_icmp_err_interval and ip_icmp_err_burst
ip_respond_to_echo_broadcast and ip6_respond_to_echo_multicast
ip_send_redirects and ip6_send_redirects
ip_forward_src_routed and ip6_forward_src_routed
ip_strict_dst_multihoming and ip6_strict_dst_multihoming
IP Tunable Parameters With Additional Cautions
ip_icmp_return_data_bytes and ip6_icmp_return_data_bytes
TCP/IP Parameters Set in the /etc/system File
TCP Parameters With Additional Cautions
5. Network Cache and Accelerator Tunable Parameters
A. Tunable Parameters Change History
Defines the default maximum UDP socket datagram size. For more information, see udp_max_buf.
57,344 bytes
1,024 to 1,073,741,824 bytes
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
For information, see udp_xmit_hiwat (Solaris 9 Releases).
Defines the default maximum UDP socket receive buffer size. For more information, see udp_max_buf.
57,344 bytes
128 to 1,073,741,824 bytes
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
For information, see udp_recv_hiwat (Solaris 9 Releases).
Changing the following parameter is not recommended.
Controls how large send and receive buffers can be for a UDP socket.
2,097,152 bytes
65,536 to 1,073,741,824 bytes
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
For information, see udp_max_buf (Solaris 9 Releases).