Congestion:
RFC4340: Datagram Congestion Control Protocol (DCCP).
RFC896: Congestion control in IP/TCP internetworks.
RFC1018: Some comments on SQuID.
RFC1254: Gateway Congestion Control Survey.
RFC2001: TCP Slow Start, Congestion Avoidance, Fast Retransmit, and Fast Recovery Algorithms.
RFC2309: Recommendations on Queue Management and Congestion Avoidance in the Internet.
RFC2481: A Proposal to add Explicit Congestion Notification (ECN) to
RFC2556: OSI connectionless transport services on top of UDP Applicability Statement for Historic Status.
RFC2581: TCP Congestion Control.
RFC2760: Ongoing TCP Research Related to Satellites.
RFC2861: TCP Congestion Window Validation.
RFC2884: Performance Evaluation of Explicit Congestion Notification (ECN) in IP Networks.
RFC2914: Congestion Control Principles.
RFC3042: Enhancing TCP's Loss Recovery Using Limited Transmit.
RFC3124: The Congestion Manager.
RFC3155: End-to-end Performance Implications of Links with Errors.
RFC3168: The Addition of Explicit Congestion Notification (ECN) to
RFC3390: Increasing TCP's Initial Window.
RFC3451: Layered Coding Transport (LCT) Building Block.
RFC3465: TCP Congestion Control with Appropriate Byte Counting (ABC).
RFC3540: Robust Explicit Congestion Notification (ECN) Signaling with Nonces.
RFC3649: HighSpeed TCP for Large Congestion Windows.
RFC3714: IAB Concerns Regarding Congestion Control for Voice Traffic in the Internet.
RFC3742: Limited Slow-Start for TCP with Large Congestion Windows.
RFC4336: Problem Statement for the Datagram Congestion Control Protocol (DCCP).
RFC4341: Profile for Datagram Congestion Control Protocol (DCCP) Congestion Control ID 2: TCP-like Congestion Control.
RFC4614: A Roadmap for Transmission Control Protocol (TCP) Specification Documents.
RFC4653: Improving the Robustness of TCP to Non-Congestion Events.