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SDL diagram for network protocol handling with TCP/UDP connection management and packet processing

Comprehensive campus network with multiple buildings and redundant paths

Compact office network topology with router, switch, and workstations

Detailed HTTP/2 frame structure with headers and data sections

Standard TCP header structure with flags and options

TCP connection lifecycle finite state machine showing all connection states and transitions

Social media system architecture with descriptive components

Comprehensive DNS packet structure including header, question, answer, authority, and additional sections