--- mel@beckman.org wrote: From: Mel Beckman <mel@beckman.org> Accurate time to the millisecond is pretty much essential for any network troubleshooting. Say you want to diagnose a SIP problem. You collect transaction logs from both phones, the VoIP gateway, and the PBX. Now you try to merge them to derive the sequence of events. You NEED millisecond accuracy. ---------------------------------------- If all logs are sent to a unix server that does syslogd the log entries would go into the file in order no matter what timestamp is on them. scott
Yo Scott! On Wed, 11 May 2016 17:20:28 -0700 "Scott Weeks" <surfer@mauigateway.com> wrote:
If all logs are sent to a unix server that does syslogd the log entries would go into the file in order no matter what timestamp is on them.
syslogd can have quite large buffers. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 gem@rellim.com Tel:+1 541 382 8588
Wed, May 11, 2016 at 05:20:28PM -0700, Scott Weeks wrote:
--- mel@beckman.org wrote:
From: Mel Beckman <mel@beckman.org>
Accurate time to the millisecond is pretty much essential for any network troubleshooting. Say you want to diagnose a SIP problem. You collect transaction logs from both phones, the VoIP gateway, and the PBX. Now you try to merge them to derive the sequence of events. You NEED millisecond accuracy. ----------------------------------------
If all logs are sent to a unix server that does syslogd the log entries would go into the file in order no matter what timestamp is on them.
Modulo latencies and jitter from different machines to the log server. Millisecond precision can be harmed by this, easily. Especially by jitter and order of millisecond here isn't something non-existent in a long-distant networks. -- Eygene Ryabinkin, National Research Centre "Kurchatov Institute" Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
participants (3)
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Eygene Ryabinkin -
Gary E. Miller -
Scott Weeks