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Network tuning > Optimizing line description settings - Pg. 270

1. Log on to the iSeries server with a user profile that has *SECADMIN authority. 2. Enter the CHGTCPA CL command and press F4 to prompt it. 3. In the Change IP Attributes (CHGTCPA) display, specify the TCP receive buffer size (TCPRCVBUF) and TCP send buffer size (TCPSNDBUF). In our testing environment, these parameters were set to 65536, as shown in Figure 9-9. Press Enter. Changes to the TCP/IP attributes take effect immediately. Change TCP/IP Attributes (CHGTCPA) Type choices, press Enter. TCP keep alive . . . . . . . TCP urgent pointer . . . . . TCP receive buffer size . . TCP send buffer size . . . . TCP R1 retransmission count TCP R2 retransmission count TCP minimum retransmit time TCP closed timewait timeout TCP close connection message UDP checksum . . . . . . . . Path MTU discovery: Enablement . . . . . . . . Interval . . . . . . . . . IP datagram forwarding . . . IP source routing . . . . . IP reassembly time-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . TCPKEEPALV TCPURGPTR TCPRCVBUF TCPSNDBUF TCPR1CNT TCPR2CNT TCPMINRTM TCPCLOTIMO TCPCNNMSG UDPCKS IPPATHMTU 120 *BSD > 65536 > 65536 3 16 250 120 *THRESHOLD *YES *YES 10 *NO *YES 10 More... . . . IPDTGFWD . IPSRCRTG . IPRSBTIMO