Mark Nowell
Cisco Fellow
Optics and Optical Group
Articles
Keeping Cool with QSFP-DD800 Optics
History has been very clear that for broad industry adoption of the 800G generation, an optical pluggable form factor must be judged on: (1) Backwards compatibility with previous generation optics (2) 100G+ electrical performance (3) Excellent thermal power dissipation The recent QSFP-DD MSA updates ensure all of these, but I’d like to focus on the […]
In Praise of the QSFP – from 40GbE to 400GbE and Beyond
Cisco is building and testing QSFP-DD systems and modules capable of driving 400GbE Ethernet electrical interfaces and cooling 20W modules with margin to address thermal and high-speed electrical challenges. These advances for the 400GbE are not at the limits of what is possible. Further innovation will reduce power as chips move to 7nm from the current 16nm processes.
Cisco Makes Terabit Scale Ethernet Networking a Reality with 400 GbE Technology
The Cisco Nexus switch with 400 GbE of bandwidth gets put to the test in the Ethernet Alliance’s High-Speed Ethernet Plugfest in August.
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