Section J — Networking Research (Topics 851–930)
Overview
This section covers cutting-edge networking research and advanced datacenter networking that frequently appears in senior/staff-level systems interviews at companies running large-scale infrastructure (Google, Meta, AWS, Microsoft, Netflix, Cloudflare). Topics range from programmable data planes (P4, SmartNICs) to emerging transport protocols and network verification.
Topic Map
graph TD
A[Networking Advanced] --> B[Programmable Networks]
A --> C[Advanced Congestion Control]
A --> D[Modern Network Architecture]
A --> E[Datacenter Topology]
A --> F[Emerging Networks]
B --> B1[P4 / Programmable Switches / ASICs]
B --> B2[SmartNICs / DPDK / XDP]
B --> B3[eBPF Networking Advanced / SR-IOV]
C --> C1[BBR Internals / Copa / PCC]
C --> C2[ECN / DCTCP / Incast / Bufferbloat]
C --> C3[AQM: CoDel / PIE / Fair Queuing]
C --> C4[Network Calculus]
D --> D1[TSN / Deterministic Networking]
D --> D2[Segment Routing / SRv6]
D --> D3[INT / Telemetry / Tomography]
D --> D4[SDN / P4Runtime / Verification]
E --> E1[Clos / Fat-Tree / Leaf-Spine]
E --> E2[Optical DC Networks / Photonic]
F --> F1[Satellite / LEO / Edge / 5G / 6G]
F --> F2[NFV / SFC / Container Networking]
F --> F3[QUIC Internals / HTTP/3 / MASQUE]
F --> F4[Encrypted Transport / DoH / DoT / ODoH]
Reading Order
| # | File | Prerequisites | Focus |
|---|---|---|---|
| 1 | programmable-networks.md | eBPF basics, TCP/IP | P4, SmartNICs, DPDK, XDP, SR-IOV |
| 2 | congestion-control-advanced.md | TCP congestion control fundamentals | Advanced CC algorithms, AQM, queuing |
| 3 | modern-network-arch.md | SDN basics, routing | TSN, SR, telemetry, verification |
| 4 | datacenter-topology.md | Switching basics | Clos, fat-tree, optical DCNs |
| 5 | emerging-networks.md | TCP, TLS, containers | LEO, 5G/6G, NFV, QUIC, encrypted DNS |
Cross-References
- TCP fundamentals:
../tcp/README.md,../tcp/bbr.md,../tcp/cubic.md,../tcp/congestion-control.md - QUIC/HTTP3:
../http/quic.md,../http/http3.md - eBPF:
../ebpf-networking.md,../../os/kernel-advanced/ebpf-deep.md - Fast I/O:
../../os/advanced/fast-io.md(DPDK, io_uring) - Load balancing:
../load-balancing/README.md - Security:
../security/README.md - HPC networking:
../../hpc/mpi-parallelism.md(RDMA, InfiniBand, RoCE)