发明名称 |
Transparent auto-discovery of network devices logically located between a client and server |
摘要 |
Discovery of intermediate network devices is performed using a technique that piggybacks upon the existing standard TCP (Transport Control Protocol) SACK (Selective Acknowledgment) option in a SYN/ACK packet so that discovery information may be shared between pair-wise-deployed peer intermediate devices when a TCP/IP connection (Transport Control Protocol/Internet Protocol) is first established between network endpoints using a conventional three-way handshake. Use of the SACK option is combined with another technique which comprises modifying the original 16-bit value of the TCP receive window size to a special arbitrary value to mark a SYN packet as being generated by a first peer device. The marked SYN when received by the second peer device triggers that device's discovery information to be piggybacked in the SACK option of the SYN/ACK packet. The first device then piggybacks its discovery information in the SACK option of the ACK packet which completes the three-way handshake.
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申请公布号 |
US8335858(B2) |
申请公布日期 |
2012.12.18 |
申请号 |
US201113169071 |
申请日期 |
2011.06.27 |
申请人 |
SRIDHARAN MURARI;BANSAL DEEPAK;YARIV ERAN;BARENBOIM RONEN;STEPIN MAXIM;MALVSH ALEXANDER;MICROSOFT CORPORATION |
发明人 |
SRIDHARAN MURARI;BANSAL DEEPAK;YARIV ERAN;BARENBOIM RONEN;STEPIN MAXIM;MALVSH ALEXANDER |
分类号 |
G06F15/16 |
主分类号 |
G06F15/16 |
代理机构 |
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