Книга: Iptables Tutorial 1.2.2

SCTP SHUTDOWN ACK chunk

SCTP SHUTDOWN ACK chunk

The SHUTDOWN ACK chunk is used to acknowledge a SHUTDOWN chunk that has been received. Before the SHUTDOWN ACK chunk is sent, all data in the sending buffers should be sent, but the buffers must not accept any new data from the application. SCTP does not support half-open connections as TCP does.

Type - bit 0-7. This header is always set to 8 for SHUTDOWN ACK chunks.

Chunk flags - bit 8-15. Not used today. Might be applicable for change. See SCTP Common and generic headers for more information.

Chunk Length - bit 16-31. The chunk length is the length of the whole chunk. The length of the SHUTDOWN ACK chunk should always be 4.

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