TCP receive window

From: Chuck (steeler_dude99@yahoo.com)
Date: Tue May 03 2005 - 11:49:58 EDT


Folks, I ran a Network Applicace (aka NetApp) netdiag comand and it says that I should adjust a TCP parameter on my solaris box. I would like to incrase my TCP receive window to 32768 bytes, per NetApp but I can not seem to see what solaris name adjusts this value. I am pretty sure it's tcp_recv_hiwat value, but wanted to check here 1st. The list is below. I will summarize. Thanks in advance.

chuck

FILER> netdiag
Performing physical layer diagnostics.....OK
Performing network layer diagnostics.....OK
Performing transport layer diagnostics.....
The TCP receive window advertised by NFS client sun010-ge.usmc is 24820.
This is less than the recommended value of 32768 bytes.
You should increase the TCP receive buffer size for NFS on the client.
Press enter to continue ...

Here is the tcp list.

bash-2.03# ndd /dev/tcp \?
? (read only)
tcp_time_wait_interval (read and write)
tcp_conn_req_max_q (read and write)
tcp_conn_req_max_q0 (read and write)
tcp_conn_req_min (read and write)
tcp_conn_grace_period (read and write)
tcp_cwnd_max (read and write)
tcp_debug (read and write)
tcp_smallest_nonpriv_port (read and write)
tcp_ip_abort_cinterval (read and write)
tcp_ip_abort_linterval (read and write)
tcp_ip_abort_interval (read and write)
tcp_ip_notify_cinterval (read and write)
tcp_ip_notify_interval (read and write)
tcp_ipv4_ttl (read and write)
tcp_keepalive_interval (read and write)
tcp_maxpsz_multiplier (read and write)
tcp_mss_def_ipv4 (read and write)
tcp_mss_max_ipv4 (read and write)
tcp_mss_min (read and write)
tcp_naglim_def (read and write)
tcp_rexmit_interval_initial (read and write)
tcp_rexmit_interval_max (read and write)
tcp_rexmit_interval_min (read and write)
tcp_deferred_ack_interval (read and write)
tcp_snd_lowat_fraction (read and write)
tcp_sth_rcv_hiwat (read and write)
tcp_sth_rcv_lowat (read and write)
tcp_dupack_fast_retransmit (read and write)
tcp_ignore_path_mtu (read and write)
tcp_rcv_push_wait (read and write)
tcp_smallest_anon_port (read and write)
tcp_largest_anon_port (read and write)
tcp_xmit_hiwat (read and write)
tcp_xmit_lowat (read and write)
tcp_recv_hiwat (read and write)
tcp_recv_hiwat_minmss (read and write)
tcp_fin_wait_2_flush_interval (read and write)
tcp_co_min (read and write)
tcp_max_buf (read and write)
tcp_strong_iss (read and write)
tcp_rtt_updates (read and write)
tcp_wscale_always (read and write)
tcp_tstamp_always (read and write)
tcp_tstamp_if_wscale (read and write)
tcp_rexmit_interval_extra (read and write)
tcp_deferred_acks_max (read and write)
tcp_slow_start_after_idle (read and write)
tcp_slow_start_initial (read and write)
tcp_co_timer_interval (read and write)
tcp_sack_permitted (read and write)
tcp_trace (read and write)
tcp_compression_enabled (read and write)
tcp_ipv6_hoplimit (read and write)
tcp_mss_def_ipv6 (read and write)
tcp_mss_max_ipv6 (read and write)
tcp_rev_src_routes (read and write)
tcp_ndd_get_info_interval (read and write)
tcp_rst_sent_rate_enabled (read and write)
tcp_rst_sent_rate (read and write)
tcp_use_smss_as_mss_opt (read and write)
tcp_wroff_xtra (read and write)
tcp_extra_priv_ports (read only)
tcp_extra_priv_ports_add (write only)
tcp_extra_priv_ports_del (write only)
tcp_status (read only)
tcp_bind_hash (read only)
tcp_listen_hash (read only)
tcp_conn_hash (read only)
tcp_acceptor_hash (read only)
tcp_host_param (read and write)
tcp_time_wait_stats (read only)
tcp_host_param_ipv6 (read and write)
tcp_1948_phrase (write only)
tcp_reserved_port_list (read only)
tcp_close_wait_interval(obsoleted- use tcp_time_wait_interval) (no read or write)
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