Ping Protocol
The protocol is used to determine the network availability of devices using the ICMP Ping service. Although this functionality is already in the D2000 Server process (see system structure SV._System_NetStatus), a separate implementation in the D2000 KOM process has the following advantages:
Support for the "Retry Count" parameter: multiple repetitions of the challenge (so the I/O tag does not go to the False state immediately after the failure to receive a single response).
The possibility of pinging even in networks that are not available for the D2000 Server (eg D2000 KOM running in the DMZ).
The protocol supports pinging using names/addresses in both IPv4 and IPv6 protocols.
Category of communication line: API
Communication protocol: Ping Protocol.
The station address is not specified.
Station protocol parameters
Communication station - configuration dialog box - "Protocol parameters" tab.
They influence some of the optional parameters of the protocol.
Table 1
Possible I/O tag types: DI
Addresses of I/O tags:
IPv4 address: e.g. 172.16.0.1 or 8.8.8.8
IPv4 symbolic name: e.g. myD2server or www.google.com
IPv6 address: e.g. fe80::d898:43fa:9371:da32 or [fd00::2]
IPv6 symbolic name: e.g. [myD2server] or [www.google.com]
If the address starts with %IGNORE, the I/O tag will be ignored.
https://en.wikipedia.org/wiki/Internet_Control_Message_Protocol
https://en.wikipedia.org/wiki/ICMPv6
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