Computer Networking — Chapter 4: The Network Layer: Data Plane

Notes on Chapter 4 of Computer Networking: A Top-Down Approach (7th Edition). Covers network layer data plane functions: forwarding, router architecture, IP protocol, addressing, NAT, IPv6, and SDN generalized forwarding.

June 27, 2026 · 4 min · 832 words

Computer Networking — Chapter 5: The Network Layer: Control Plane

Notes on Chapter 5 of Computer Networking: A Top-Down Approach (7th Edition). Covers routing algorithms, OSPF, BGP, SDN control plane, ICMP, and SNMP.

June 27, 2026 · 4 min · 799 words

Computer Networking — Chapter 6: The Link Layer and LANs

Notes on Chapter 6 of Computer Networking: A Top-Down Approach (7th Edition). Covers link-layer services, error detection, multiple access protocols, Ethernet, switches, VLANs, MPLS, data center networking.

June 27, 2026 · 5 min · 965 words

Computer Networking — Chapter 7: Wireless and Mobile Networks

Notes on Chapter 7 of Computer Networking: A Top-Down Approach (7th Edition). Covers wireless links, WiFi (802.11), cellular networks, mobility management, and Mobile IP.

June 27, 2026 · 5 min · 865 words

Computer Networking — Chapter 8: Security in Computer Networks

Notes on Chapter 8 of Computer Networking: A Top-Down Approach (7th Edition). Covers cryptography, message integrity, authentication, SSL, IPsec, wireless security, and firewalls.

June 27, 2026 · 4 min · 822 words

Computer Networking — Chapter 9: Multimedia Networking

Notes on Chapter 9 of Computer Networking: A Top-Down Approach (7th Edition). Covers multimedia applications, streaming video, VoIP, RTP, SIP, Diffserv, Intserv, and RSVP.

June 27, 2026 · 4 min · 851 words

Pi Coding Agent 扩展系统源码分析

对 F:\Pi\packages\coding-agent\src\core\extensions\ 中 5 个 .ts 文件的逐行解读与关系分析。涵盖 types.ts(类型定义)、loader.ts(加载器)、runner.ts(运行器)、wrapper.ts(包装器)和 index.ts(入口导出)。

June 27, 2026 · 22 min · 4566 words

Game of Chess

Notes on Chess from a Game Theory perspective.

June 25, 2026 · 2 min · 253 words

hi no

June 24, 2026 · 1 min · 2 words

Hash Table

Hash Dictionary

June 20, 2026 · 1 min · 2 words