Cisco vs Harmonic

Cisco Uses OpenAI Models for Machine-Speed Security Defense

Cisco is leveraging OpenAI's frontier AI models, including GPT-6 Astra and the Daybreak Defense Network, to enhance its enterprise security offerings. By combining network telemetry with AI reasoning, Cisco aims to close the gap between vulnerability exploitation and patching. The partnership emphasizes enterprise data privacy, with OpenAI's zero data retention and strict customer data boundaries. Cisco's Chief Product Officer Jeetu Patel highlights the need to defend at machine speed against AI-powered attacks. The collaboration focuses on integrating AI into existing security workflows and addressing challenges in an agentic world, such as protecting agents and detecting unintended behavior.

• Cisco and OpenAI are collaborating to integrate AI models into Cisco's security defenses.
• OpenAI's commitment to zero data retention enables Cisco to deploy AI on sensitive telemetry.
• Cisco's initiatives include Daybreak and GPT-6 Astra to improve vulnerability patching.

Understanding Coherent Optics in AI Data Center Interconnects

This article explains coherent optical technology, which encodes data in light's amplitude, phase, and polarization, enabling transmission over hundreds of kilometers between AI data centers. It contrasts this with intensity modulation with direct detection (IM-DD) used inside data centers, which is limited to about 10 km. Coherent optics uses a local oscillator laser and digital signal processing (DSP) to overcome fiber dispersion and loss, supporting dense wavelength division multiplexing (DWDM). The article covers cost trade-offs, with a 2022 IEEE contribution estimating the coherent DSP costs 10x, lasers 15x, and receiver 20x more than 400G IM-DD modules. It highlights the shift towards coherent pluggables, citing Cignal AI's expectation of revenue growing from $2B in 2025 to $7.5B by 2030. The emerging 'coherent-lite' variant aims to bring coherent technology into campus networks, though volume adoption is not yet widespread.

• Coherent optics encodes data in amplitude, phase, and polarization, enabling transmission over hundreds of kilometers.
• A 2022 IEEE contribution estimated coherent DSP costs 10x, lasers 15x, and receivers 20x more than 400G IM-DD modules.
• Cignal AI projects coherent pluggable revenue to grow from $2B in 2025 to $7.5B by 2030.

8-K Financial Filing Analysis for Viptela, Inc. (2026-10-09)

On October 7, 2026, the Board of Directors of Cisco Systems, Inc. appointed Girish D. Rishi, Chief Executive Officer of Cognite Holding B.V., as an independent director effective October 9, 2026. Board committee assignments for Mr. Rishi have not yet been finalized. In line with Cisco's standard non-employee director compensation framework, Mr. Rishi will receive a pro-rated annual cash retainer of $105,000, payable quarterly in arrears, along with a pro-rated initial equity award based on an annual grant value of $270,000 under the 2005 Stock Incentive Plan. He has also executed the standard corporate indemnity agreement and is eligible for up to $25,000 in annual charitable gift matching.

• Appointment of Girish D. Rishi (CEO of Cognite Holding B.V.) as an independent director effective October 9, 2026.
• Standard non-employee director compensation includes a pro-rated annual cash retainer of $105,000 and an initial equity award pro-rated from a $270,000 baseline under the 2005 Stock Incentive Plan.
• Eligibility for up to $25,000 in calendar year 2026 charitable gift matching alongside a standard indemnification agreement.

8-K Financial Filing Analysis for Harmonic (2026-08-12)

On August 12, 2026, Harmonic Inc. submitted a Form 8-K under Item 2.02 to announce its preliminary unaudited financial results for the second quarter ended July 3, 2026. The company furnished its earnings press release as Exhibit 99.1 and conducted an accompanying investor conference call on the same date. Because the actual earnings figures and financial tables were furnished via Exhibit 99.1 rather than directly embedded in the body of the Form 8-K, the filing serves as a procedural disclosure notifying the market of the availability of its Q2 2026 operating results.

• Harmonic Inc. reported preliminary unaudited financial results for the fiscal quarter ended July 3, 2026.
• The announcement was furnished via press release as Exhibit 99.1 under Item 2.02 alongside an investor conference call on August 12, 2026.
• The filing was formally authorized and signed by Chief Financial Officer Walter Jankovic on August 12, 2026.

Harmonic Launches Recon Product Family Developed in Partnership with Comcast

New Solution Expands Harmonic’s Network Intelligence Portfolio and Brings Comcast-Developed Fiber Monitoring Technology to Broadband Operators, Providing Real-Time Network Visibility, Proactive Fault...

Lightcurve Partners with Harmonic for Multi-Gigabit Broadband over Coax

Harmonic announced that broadband service provider Lightcurve is deploying its cOS virtualized broadband platform to deliver multi-gigabit internet speeds to Multi-Dwelling Units (MDUs) in central and western Washington state. Using Harmonic's Oyster nodes with Pebble Remote PHY devices in a distributed access architecture, Lightcurve can offer up to 8 Gbps downstream and 1 Gbps upstream over existing coaxial wiring, avoiding the cost and disruption of fiber overbuild. The solution also includes Harmonic's Central AI-powered network intelligence for proactive troubleshooting. Lightcurve's COO, Dr. Pao Lo, emphasized the speed and cost-effectiveness of the deployment, while Harmonic's SVP of Global Sales, Jeffrey Glahn, highlighted the capital-efficient path to multi-gigabit broadband. Harmonic will showcase the platform at SCTE TechExpo26.

• Lightcurve is deploying Harmonic's cOS virtualized broadband platform to deliver multi-gigabit services to MDUs over existing coax wiring.
• The solution enables downstream speeds up to 8 Gbps and upstream speeds up to 1 Gbps.
• Lightcurve uses Harmonic's Oyster nodes with Pebble Remote PHY devices in a distributed access architecture.