Networking
SDN-Inspired Hardware-Offloaded SFUs Cut Video Conferencing Latency 26x and Scale 210x Over Commodity Servers
Scallop reframes the Selective Forwarding Unit (SFU) — the core relay component of video conferencing infrastructure — as an SDN-style split-plane system: latency-sensitive media operations (drop, forward) are offloaded to a Tofino programmable ASIC data plane, while infrequent control logic (feedba…
Mowgli Enables Production-Ready Data-Driven Rate Control via Passive Telemetry Learning
Mowgli learns an improved rate control policy solely from existing production telemetry logs generated by the incumbent GCC algorithm, avoiding the performance degradation of active training methods. It addresses log-based learning challenges—such as delayed or reordered decisions and lack of feedba…
Dashlet Tames Swipe Uncertainty with Statistical Pre-Buffering for Superior Short Video QoE
Dashlet addresses swipe-induced uncertainty in short video streaming by using insights from TikTok traces and user swipe studies to model swipe statistics without machine learning. It employs out-of-order video chunk pre-buffering, prioritizing chunks based on predicted swipe order and bitrate to ma…
ABC: Single-Bit Feedback Enables Precise Congestion Control for Time-Varying Wireless Links
ABC introduces a router-assisted congestion control protocol using a single bit per packet (accelerate/break marks via ECN) to dynamically adjust sender rates from 0 to 2x current rate per RTT, addressing underutilization and bufferbloat in wireless networks. Unlike prior explicit schemes like XCP t…
ABC: Simple Explicit Congestion Control Excels on Wireless Networks
ABC is an explicit congestion control protocol for wireless networks where routers mark packets as "accelerate" or "brake" to guide senders toward a target rate via minor cwnd adjustments. It requires no header changes or device modifications, is incrementally deployable, and interoperates with non-…
Monetary Incentives and Cryptocurrency-Enabled Proofs Unlock Peer Participation in P2P Video Delivery
A US survey of 876 respondents reveals 51% would participate in P2P content delivery for suitable financial incentives, exceeding expectations and addressing key adoption barriers. Gringotts introduces a secure system using novel Proof of Delivery to verify file transfers and cryptocurrency payments…
Node.js Raw Socket ICMP Ping with Custom IP Header Construction
This code demonstrates crafting and sending raw ICMP echo request packets using Node.js raw-socket and ip modules. It manually constructs an IP packet with fixed header bytes, overwrites source/target IPs via buffer manipulation, randomizes ID, and sets total length dynamically before transmission. …