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Bad SIP Protocol Extension used, not understood by the server. [1]: §21.4.15 421 Extension Required The server needs a specific extension not listed in the Supported header. [1]: §21.4.16 422 Session Interval Too Small The received request contains a Session-Expires header field with a duration below the minimum timer. [11]
Announcement data is sent using IP multicast and the User Datagram Protocol (UDP). Under SAP, senders periodically transmit SDP descriptions to a well-known multicast address and port number (9875). [1] A listening application constructs a guide of all advertised multicast sessions. SAP was published by the IETF as RFC 2974. [2]
2.XXX.XXX Success: Report of a positive delivery action. 4.XXX.XXX Persistent Transient Failure: Message as sent is valid, but persistence of some temporary conditions has caused abandonment or delay. 5.XXX.XXX Permanent Failure: Not likely to be resolved by resending the message in current form.
The requested action is being initiated; expect another reply before proceeding with a new command. (The user-process sending another command before the completion reply would be in violation of protocol; but server-FTP processes should queue any commands that arrive while a preceding command is in progress.)
When received in response to a POST (or PUT/DELETE), the client should presume that the server has received the data and should issue a new GET request to the given URI. 304 Not Modified Indicates that the resource has not been modified since the version specified by the request headers If-Modified-Since or If-None-Match. In such case, there is ...
SAP Business One is an enterprise resource planning application designed for small and medium-sized enterprises, and marketed by the German company SAP SE. As a company, SAP Business One focuses on automating key business functions in finance, operations, and human resources .
Explicit Congestion Notification (ECN) is an extension to the Internet Protocol and to the Transmission Control Protocol and is defined in RFC 3168 (2001). ECN allows end-to-end notification of network congestion without dropping packets. ECN is an optional feature that may be used between two ECN-enabled endpoints when the underlying network ...
ICMP is part of the Internet protocol suite as defined in RFC 792. ICMP messages are typically used for diagnostic or control purposes or generated in response to errors in IP operations (as specified in RFC 1122). ICMP errors are directed to the source IP address of the originating packet. [3]