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https://zjucomp.netCourse documentation for the 2025-2026 academic year Computer Networks course at Zhejiang University, taught by Lu Xiqun. It includes detailed guides and resources for Labs 1-8, covering Wireshark packet analysis, GNS3 network simulation, VLAN configuration, RIP, OSPF, BGP, and Socket programming. The site also provides lecture notes on the Physical, Data Link, Network, Transport, and Application layers, along with a technical terminology glossary and toolchain configuration for Windows and WSL.
Key concepts for optimizing web content delivery:
Terms include:
The following protocols are commonly analyzed during network capture experiments:
Key BGP concepts for developers and network engineers:
* indicates a valid route, > indicates the best route, i indicates an internal route, and r indicates a route rejected during routing table write (often due to a higher priority internal route like OSPF).Ensure thorough mastery of the detailed steps and concepts for the following high-probability exam topics:
Use these fundamental equations to analyze system delays and queue lengths:
Terms include:
To maintain high cohesion and low coupling, separate the request dispatching logic from the actual business logic. Use a handler-based architecture where a central loop receives data, parses the request type, and delegates the task to a specific function.
Server-side Responsibilities:
Client-side Responsibilities:
// Conceptual framework for request dispatching
pkt func1Handler(params) { /* business logic */ return response; }
pkt func2Handler(params) { /* business logic */ return response; }
void connectionHandler(int socket) {
while (!shouldExit) {
// 1. recv() request from client
// 2. Parse request type
if (type == FUNC1) {
pkt res = func1Handler(params);
send(socket, res);
}
else if (type == FUNC2) {
pkt res = func2Handler(params);
send(socket, res);
}
}
}The general process for a browser to load a webpage involves: