The World of 100G Networking
summary
Compares competing 100G options and shows real lab numbers: Mellanox EDR and 100G Ethernet hit line rate and about 2 μs latency in tests with an SB7700 EDR switch; OmniPath v1 shows noticeably higher latency today. Explains why POSIX sockets choke at millions of packets/sec and why RDMA/verbs or OFI/DPDK bypasses are required to reach ~12.5 GB/s into memory. Describes flow‑steering, NIC offloads, form‑factors (QSFP28, CFP), and interoperability caveats.
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chapters (22)
- 0:00Introduction
- 1:11Why are we doing this
- 5:32What kind of 400G networking
- 10:18Form factors
- 10:58Single switch
- 12:58Adapters
- 13:23Switches
- 18:13Flow steering
- 19:55NICs
- 21:58APIs
- 24:41Socket API
- 26:41InfiniBand API
- 28:53OpenFabric API
- 30:29Test Setup
- 30:55Latency
- 32:12Bandwidth Measurements
- 33:04Multicast Latency
- 34:24Big Packet Test
- 34:42References
- 35:13RDM Conference
- 42:58DDR Memory
- 45:15Get involved
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