The Standby branch of the Server Status Tool includes an ICMP Polls category. This category shows the status of ICMP 'pings' between the main and standby servers. This information is useful when investigating the connections between the Geo SCADA Expert servers—if the ICMP ‘pings’ are unsuccessful, this would indicate that Geo SCADA Expert could not transmit the ‘pings’, which may be due to abnormal network conditions.
The ICMP Polls category provides the following information:
- Id—A unique identifier for the ICMP poll. This is used internally.
- Name / IP Address—The name or IP address of the computer that is being polled. This is the same address that is configured in the Name/IP address field in the Standby tab in the Partners section of the Server Configuration Tool.
- Polled IP Address—The IP address for the poll. The IP address is retrieved after any lookup (IPv4, IPv6, Link-local IPv6) of the name of the computer to which the 'ping' is sent.
- Status—Indicates the current state of the poll. This can be:
- Healthy—The poll is being sent correctly.
- Failed—The poll could not be sent (there may be abnormal network conditions).
- Unknown—The poll could not be sent due to an unknown error. Please contact Schneider Electric for assistance.
- No Socket—The server could not create a ‘listen’ socket to receive the ICMP polls. Please contact Schneider Electric for assistance.
- Poll—Indicates whether a poll is currently in progress. Usually, the Poll entry will be No as polls complete very quickly.
- Good—The number of good, successful polls.
- Bad—The number of bad, unsuccessful polls.
- Ident—The identifier for the latest poll. This is used in conjunction with the sequence number of the poll to differentiate between each poll.