Software Eng @AristaNetworks | Vice-Captain CTF Player @thehackerscrew1 | prev. US Cyber Team 🇺🇸
Joined June 2017
- Tweets 269
- Following 222
- Followers 266
- Likes 1,896
89 Photos and videos
Jonathan Ho (CSN3RD) retweeted
Jun 10
Check our latest video exploring the critical importance of high-performance networking in the rapidly evolving era of AI. It highlights how major technology leaders—including @Meta , @Microsoft , @Arm , @AMD , @cerebras , @OpenAI , @Google and @AnthropicAI partnering with Arista to build the scalable, open-standards-based infrastructure required for modern AI workloads.
bit.ly/49UfTln
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At Arista, we get to build out some of the largest scale-out AI fabrics in the world!
We partner with hyperscalers (e.g. Google, Meta, Microsoft, and Oracle), AI labs (e.g. Anthropic and OpenAI), chip makers (e.g. AMD, Arm, Cerebras), and many others!
blogs.arista.com/blog/three-…
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Jonathan Ho (CSN3RD) retweeted
Jun 8
The mission is growing. Arista Networks, Armada.ai , Cisco, Cognition AI, Cognizant, Payward, Moveworks, Scale AI, and Wiz have joined @USTechForce as industry partners.
They’ll help provide technical training, executive engagement, and pathways for top engineers to serve their country through technology. The next generation of government innovation starts now.
@AristaNetworks @armada_ai @Cisco @cognition @Payward @moveworks @scale_AI @wiz_io
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My preorder arrived! Looks so good 🥳
Mar 18
Announcing our first book: Silicon
A beautiful coffee table book about the world of transistors, chips, and the greatest technology revolution of all time.
384 pages. Almost five pounds. Preorders open now, shipping in May: arenamag.com/silicon
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Jonathan Ho (CSN3RD) retweeted
May 4
a friend sent this to me, i cannot take credit for it. but now u know which chocolate bar will fit into a qsfp cage
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Arista mogs on perf and aura
Apr 22
Purely on aesthetic grounds, Juniper gear clears above all, IMO.
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Jonathan Ho (CSN3RD) retweeted
OFC 2026 Irrational Recap open.substack.com/pub/irrati…
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$ANET This is massive! Andy and team have been cooking.
204.8T liquid-cooled switch that fits in 1RU! And supports 1600G-DR, FR, LR, SR, ZR, ZR , Coherent-Lite, RF-Microwave, and SiPho optics.
blogs.arista.com/blog/ai-dat…
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XPO launched at OFC last week with 20 module partner companies and 100 companies taking part in the MSA!
The ecosystem is moving fast with dozens of successful live demos.
204.8Tbps 1OU switches coming soon for 6.5Pbps racks! 🤯
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Great 5 minute read on the history of Cisco, Arista, and Jayshree!
The networking world is often viewed as a battle of specs — bandwidth, latency, port density and power efficiency. But one of the most consequential story of the past two decades had less to do with silicon and more to do with culture.
This quick read is about $CSCO's culture of spin-ins, how Jayashree Ullal came to lead $ANET, and how Pensando and its DPU, which would’ve have become a part of CSCO, fell in $AMD's hands.
chiplog.io/p/arista-amd-pens…
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Merchant silicon also provides flexibility to target different markets.
Arista's earliest successes were in HFT, using ultra low-latency ASICs from Fulcrum (Intel).
Arista then pioneered the switches for leaf-spine architecture, which enabled the cloud/hyperscale data centers.
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Jonathan Ho (CSN3RD) retweeted
Feb 24
$ANET bet on Ethernet. Good bet. Ethernet TAM is expanding, and agentic AI helps.
Priced in though?
chipstrat.com/p/aristas-3-bi…
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Jonathan Ho (CSN3RD) retweeted
ENJOY THE GAME AMERICA🇺🇸🇺🇸🇺🇸
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Decided to go for a run after sitting in back-to-back meetings all afternoon ...
and I got an unexpected fireworks show by Levi's Stadium!
#SBLX #SuperBowl
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It got compressed from my laptop. Here’s the higher quality HDR video:
#SuperBowl
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Jonathan Ho (CSN3RD) retweeted
Jan 26
Scale-across is proving to be one of the brightest spots of growth in the broader networking space in 2026. The longer distances over which scale-out networks are extended in order to connect datacenters tens or even hundreds of kilometers apart necessitates the use of deep buffer switches, and Arista’s “Big Boy” Modular Chassis Switch is the default option across all hyperscalers. Unlike its Tomahawk-based switches, where Arista faces competition from other WhiteBox and branded switching vendors, the Big Boy chassis enjoys a far wider moat, and Arista currently dominates the chassis switch market. (1/3) 🧵
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Jonathan Ho (CSN3RD) retweeted
Jan 23
Embrace the penguin.
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I was recently awarded two peer bonuses 🥳
1. debugged/fixed many complex bugs (e.g. double free, mem leak, race cond, null ptr deref, etc.) and oversaw my team's maintenance/tech debt efforts in 2025
2. built a set of new tools with 3 colleagues and won the company hackathon
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