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Retransmission

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Tencent Architect
Tencent Architect
Apr 8, 2022 · Fundamentals

How WebRTC Implements Video NACK: A Deep Dive into RTP Retransmission

This article provides a comprehensive walkthrough of WebRTC's video sender NACK implementation, covering the underlying ACK/NACK concepts, RFC4585 retransmission types, and the three-step process of storing RTP packets, handling RTCP NACK messages, and retransmitting lost media with priority handling.

NACKRTPRetransmission
0 likes · 5 min read
How WebRTC Implements Video NACK: A Deep Dive into RTP Retransmission
IT Services Circle
IT Services Circle
Feb 13, 2022 · Fundamentals

Does a TCP Connection Persist After Unplugging the Network Cable?

Unplugging a network cable does not immediately terminate a TCP connection; the kernel’s socket state remains ESTABLISHED, and the connection’s fate depends on data transmission, retransmission limits, TCP keepalive settings, and whether either side detects a failure.

LinuxNetworkRetransmission
0 likes · 10 min read
Does a TCP Connection Persist After Unplugging the Network Cable?
Sanyou's Java Diary
Sanyou's Java Diary
Feb 1, 2022 · Fundamentals

Understanding TCP: ACKs, Retransmission, Three‑Way Handshake & Four‑Way Termination

This article explains TCP's core mechanisms—including acknowledgment (ACK), timeout retransmission, the three‑way handshake for establishing connections, and the four‑way handshake for graceful termination—while illustrating each concept with diagrams and addressing common interview questions.

AckRetransmissionTCP
0 likes · 12 min read
Understanding TCP: ACKs, Retransmission, Three‑Way Handshake & Four‑Way Termination