CLKMGR -- STARTUP OPTIONS     25-nov-2002
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This list applies to ClkMgr Beta 6.
Defaults are indicated.

NOTE: options are case-sensitive!

 -? or ?        Display summary of startup options. Same as -H option

 -H or -h       Same as -?

 -D             Use NIST Daytime (RFC 867) protocol to query time servers.

 -N or -Nn      Use SNTP (RFC 2030) protocol to query time servers. (Default)
                Optionally identify client as NTP version n. (Default: n=2)

 -sD	        Enable NIST Daytime server at startup.

 -sN	        Enable SNTP server at startup.

 -dnnn          Set maximum round-trip network delay for received timestamp
                messages to nnn milliseconds.  (Default = -d250)

    This option is a relic and may be removed in a future release of ClkMgr.
    Based on round-trip delays supplied by the MAKETIME utility, ClkMgr will
    compute a maximum delay on a per-server basis, and an overall maximum
    delay based on the distribution of delays over the server list.

 -innn          Set polling interval to nnn hours. (Default = -i2.0)

    Minimum is -i.1 (6 minutes).  No maximum.

 -l0            Disable logging.
 -l1            Enable logging. (Default)

 -p0            Disable laptop (power/down/restart) support.

    Prevents ClkMgr from recalibrating when the system restarts from "sleep"
    mode. This option should be used only if you are having problems with the
    RTC hardware on your motherboard, and you want to run the SNTP or Daytime
    servers. The startup default is to ENABLE support for power-down/restart.

  -qn           Set size of a polling burst from 1 to 4 timestamp requests.
                Default = -q1

    This can be useful for eliminating some of the network-delay-induced
    jitter from the received timestamps.  Selection proceeds as follows:
    1. Read one sample and use that.  This is the startup default.
    2. Read two samples and use the one with the lower round-trip delay.
    3. Read three samples and use the median offset.
    4. Read four samples, discard the first, and use the median offset from
       samples 2, 3, and 4.
    Note: use choices (3) and (4) with discretion.  It is not considered
    polite to bombard a busy server, and such action may get your IP address
    placed on the server's block list!

 -r0            Set OS/2 clock mode to read-write.
 -r1            Set OS/2 clock mode to read-only. (Default)

    Placing the OS/2 clock in read-only mode prevents other software from
    modifying the system time and/or date.

 -tnn           Set initial receive timeout to nn seconds. (Default = -t10)

    Whenever ClkMgr polls a server the first attempt will time out after a
    user-definable interval; the default is 10 seconds. If the first attempt
    to reach the server fails and retries are needed, then ClkMgr uses a fixed
    retry timeout of 5 seconds.  The initial timeout may be specified to be
    long enough to allow a dial-on-demand modem connection to be set up, for
    instance.  Minimum value for nn is 5 seconds, maximum is 60 seconds.

 -v1            Enable support for variable-speed CPUs.

    If your CPU speed can vary dynamically, then this option must be enabled.
    Required only if you have a newer laptop with this power-saving feature.
    By default this support is left DISABLED.

 -wnn           Wait an additional nn seconds before first polling server.

    This may be required if you auto-start ClkMgr from STARTUP.CMD or from
    the Startup Folder.  It will allow the TCP/IP stack extra time to become
    fully initialized. (Default = -w0)

<eof>
