AT Commands User Manual Page
service is specified along the abstract parameters precedence, delay,
throughput, and reliability. These abstract parameters are to be mapped into
the actual service parameters of the particular networks the datagram
traverses. Minimum and maximum values for TOS are 0 and 255 respectively.
Refer to RFC 791 and RFC 2474 which obsoletes RFC 791 for TOS defined
values.
The default value is 0.
Specifies the amount of time, in milliseconds, to wait for the Echo Reply
message that corresponds to a sent Echo Request message, measured after
Echo Request message was sent. If the Echo Reply message is not received
within the time-out, +MPINGSTAT
The following table shows the +MPING unsolicited response parameters.
Specifies the message sender machine (computer), which is identified by
IP address 4 octets long in dotted decimal notation. Each octet of IP
address has valid value range of 0 to 255. The message sender machine
(computer) may be either the target of Echo Request message (if a
response was an Echo Reply message) or
a gateway (router) in a path of Echo Request message passage for any
other ICMP response message.
The first octet of the ICMP header is a ICMP type field, which specifies the
format of the ICMP message. Refer to IETF RFC 792 for <type> valid
values.
The reasons for the non-delivery of a packet are described by code field
value of ICMP header. Every <type> has its own defined <code> values.
Refer to IETF RFC 792 for <code> valid values.
Specifies Round Trip Time (RTT) measured in milliseconds. This
parameter will be reported in command response only if Echo Reply
message was received.
Note:
Ping request is being executed from the moment the valid AT+MPING set command was received by
Module until +MPINGSTAT unsolicited report with <status> equal either to 0 or 2 is sent to DTE or ping
request execution was aborted with AT+MPING=0 command. Refer to description of +MPINGSTAT
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