40.3. SNTP diagnostics and statistics

40.3. SNTP diagnostics and statistics
	Chapter 40. SNTP - Simple Network Time Protocol

40.3.1. SNTP diagnostics

This command reports the current situation of the SNTP resource:

[11:42:10] ABILIS_CPX:d d sntp

RES:Sntp ----------------------------------------------------------------------
       Simple_Network_Time_Protocol                                            
       ------------------------------------------------------------------------
       Server-STATE:INACTIVE
       Client-STATE:READY
       ------------------------------------------------------------------------
       Reference       : External
       Reference State : Working
       Last Response   : 12/10/2017  16:24:56  -0.352 s         193.204.114.105
       ------------------------------------------------------------------------
       Sync thresholds : None < |0.500|, smooth <= |60|, single shot > |60|. 
       Last sync start : 12/10/2017  15:24:56  -0.684 s         193.204.114.105
       Last sync end   : 12/10/2017  15:25:00
       Last Sync skew  : +20 ms every 100 ms, duration 3.420 s
       - Hosts diagnostics ----------------------------------------------------
       Host      RemAdd          State              Last try        Delta (s)
       ----+---------------+-----------------+-------------------+-------------
       1    193.204.114.105 Working used      12/10/2017 16:24:56        -0.352
       2    193.204.114.233 Working           12/10/2017 16:24:58        -0.350
       3    188.164.128.073 Unreachable       12/10/2017 16:02:59
       4    065.055.056.206 Unreachable       12/10/2017 16:03:01

The meaning:

Server-STATE

The SNTP driver state:

INACTIVE - configuration parameter SERVACT:NO.
READY - SNTP fully active.

Client-STATE

The SNTP driver state:

INACTIVE - configuration parameter CLIACT:NO.
READY - SNTP fully active.

Reference

Clock Reference:

Unavailable - unavailable local clock reference.
Internal - synchronised by the local SNTP Server, using the local CPX clock.
External - synchronised by the local SNTP Client, using a remote SNTP Server.

Reference State

Clock Reference state:

Unreachable - the local clock is unsynchronised. This event occurs when the local SNTP Server is not active and the Client cannot reach any remote SNTP Server.
Working - the local clock is synchronised. This event occurs: when the local SNTP Server is not active and the Client can reach a remote SNTP Server; when the Client is not active and the local SNTP Server is active, so the clock is synchronised on the local CPX clock.

40.3.2. SNTP statistics

This command can help to understand what is happening, in case of troubles:

[11:42:10] ABILIS_CPX:d s sntp

RES:Sntp ----------------------------------------------------------------------
       Simple_Network_Time_Protocol                                            
       --- Cleared 4 days 18:30:58 ago, on 11/10/2017 at 14:24:04 -------------
       Server:
       -----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
       SRV-PCK    |          0|          0|SRV-BADPCK |          0|           |
       DENIED-IP  |          0|           |
       ------------------------------------------------------------------------
       Client:
       -----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
       CLI-PCK    |        230|       1097|CLI-BADPCK |          0|           |
       CLI-BADSRC |          0|           |CLI-TOUT   |        867|           |
       SUCC-SYNC  |        230|           |FAIL-SYNC  |        216|           |
       ------------------------------------------------------------------------

With reference to the shown interval of time («Cleared 4 days 18:30:58 ago») these counters show the number of:

`SRV-PCK`	Valid SNTP requests received/sent by the server.
`SRV-BADPCK`	Invalid SNTP requests received by the server (bad length, invalid format, …).
`DENIED-IP`	SNTP requests received by the server from not allowed source IP address. The not-allowed is a client whose IP address is not present in `IPSRC` and `IPSRCLIST` parameters configuration.
`CLI-PCK`	Valid SNTP replies received/sent by the client.
`CLI-BADPCK`	Invalid SNTP replies received by the client (bad length, invalid format, …).
`CLI-BADSRC`	SNTP replies received by the client with an invalid source IP address or with an invalid source port.
`CLI-TOUT`	Number of time that the “`TBW`:” time out of the client expired.
`SUCC-SYNC`	Successful synchronisation.
`FAIL-SYNC`	Unsuccessful synchronisation.


40.2. Examples of SNTP configuration		Chapter 41. ALARM resource