文件列表:

Introduction.txt
PaperSIM09.pdf
Project_Timeline.md
RFC-8257.pdf
RFC-8257_Summary
Wiki-(dt-dctcp).pdf
tcp_dctcp.c
tcp_dctcp.h
tcp_dt-dctcp.c

# Double-Threshold-Data-Center-TCP-DT-DCTCP-in-Linux-kernel ## RFC 8257 Data Center TCP (DCTCP) Summary: * RFC 8257 DCTCP achieves high-burst tolerance, low latency, and high throughput with shallow-buffered switches. * DCTCP is a modification to the processing of ECN by a conventional TCP and requires that standard TCP congestion control be used for handling packet loss. ### DCTCP Algorithm There are three components involved in the DCTCP algorithm: * The switches detect congestion and set the Congestion Encountered (CE) codepoint in the IP header and also mark the packets as ECN enabled. * The receiver sends the congestion information back to the sender, using the ECN-Echo (ECE) flag in the TCP header. * The sender computes a congestion estimate and reacts by reducing the TCP congestion window (cwnd) accordingly. ### Important Points * During such periods of congestion, conventional TCP will suffer packet loss and quickly and drastically reduce cwnd. DCTCP, on the other hand, will use the fraction of marked packets to reduce cwnd more gradually. * DCTCP's potential can only be realized in data centers where the entire network infrastructure supports ECN. **Resources used:** *Ease the Queue Oscillation: Analysis and Enhancement of DCTCP (Link: http://ieeexplore.ieee.org/document/6681614/ )* *Data Center TCP (Link: https://dl.acm.org/citation.cfm?id=1851192 )* *RFC 8257 (Link: https://tools.ietf.org/html/rfc8257 )*

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