US 8,572,270 B2 · Method and apparatus for backing up TCP connection

Abstract

A method for backing up a TCP connection includes a data transmission process and a data receiving process. The data transmission process includes obtaining, by an AMB of a transmitting end, boundary information of data; and backing up the data and the boundary information of the data to a SMB of the transmitting end. The data receiving process includes backing up, by the SMB, data received from a peer side of the TCP connection and the boundary information of the data received by the peer side to the AMB; and deleting the data received by the peer side from the data backed up by the SMB during the transmission process according to the boundary information of the data received by the peer side. The disclosure also provides an apparatus for backing up a TCP connection.

Claims13

Dependent claims

A method for backing up a Transmission Control Protocol (TCP) connection implemented by a transmitting end, wherein the transmitting end comprises an Active Main Board (AMB) and Standby Main Board (SMB), the method comprising:

obtaining, by the AMB of the transmitting end, boundary information of a data to be transmitted along an active route to a peer side of the TCP connection as a plurality of packets segmented from the data to be transmitted, wherein the boundary information of the data to be transmitted comprises a begin sequence number and an end sequence number of the packets segmented from the data to be transmitted;
and
backing up the data to be transmitted and the boundary information of the data to be transmitted by transmitting the data to be transmitted and the boundary information of the data to be transmitted from the AMB to the SMB of the transmitting end before the AMB transmits part or all of the packets segmented from the data to be transmitted along the active route to the peer side of the TCP connection.

An apparatus for backing up a Transmission Control Protocol (TCP) connection, comprising:

an Active Main Board (AMB);
and
a Standby Main Board (SMB),
wherein the AMB is configured to:
obtain boundary information of a data to be transmitted along an active route to a peer side of the TCP connection as a plurality of packets segmented from the data to be transmitted, wherein the boundary information of the data comprises a begin sequence number and an end sequence number of the packets segmented from the data to be transmitted;
and
back up the data to be transmitted and the boundary information of the data to be transmitted by transmitting the data to be transmitted and the boundary information of the data to be transmitted from the AMB to the SMB of the transmitting end before the AMB transmits part or all of the packets segmented from the data to be transmitted along the active route to the peer side of the TCP connection, and
wherein the SMB is configured to back up the data to be transmitted and the boundary information of the data to be transmitted by storing the data to be transmitted and the boundary information of the data to be transmitted in the SMB before the AMB transmits part or all of the packets segmented from the data to be transmitted along the active route to the peer side of the TCP connection.

5 more elements

Dependencies are inferred from the claim text.

Method and apparatus for backing up TCP connection

Life of this patent

Method and apparatus for backing up TCP connection

Life of this patent

Abstract

Claims13