What was the growth rate of Cisco's product orders in the public sector in Q1 2022
 long-term financial targets by investing for growth while delivering breakthrough innovation. The past 18 to 24 months have no doubt accelerated the digital revolution we are all experiencing as technology is permanently changing nearly every aspect of our lives.
The technology we build is powering the modern secure infrastructure that sits at the heart of this revolution, and Cisco is well-positioned to capture the opportunities ahead. Our customers want digital and cloud-enabled solutions that allow them to move with greater speed, agility, and efficiency. We're already seeing the positive impact of our investments to drive accelerated innovation across high-growth areas, including hybrid cloud, web scale, cloud security, 5G, WiFi 6, 400 gig, and full-stack observability. A key trend in front of us is enabling employees to work from anywhere, and this is much broader than meetings.
It's about the holistic capabilities to support a highly distributed workforce that require new infrastructure architectures, observability and security. Many companies are in the process of defining their hybrid work strategy, which will be based on the technology we build across our networking, security and collaboration portfolios. We are also leading the way with new innovation, including our recently expanded Webex portfolio, purpose-built for inclusive experiences across hybrid work, workspaces, and events. Now I'd like to discuss our Q1 performance.
Building on the momentum from last quarter, I'm proud to say we achieved another strong quarter in line with our expectations despite supply constraints, which I will discuss shortly. We delivered balanced revenue and non-GAAP EPS growth with healthy margins driven by continued economic recovery, strong execution, and exceptional demand for our products. We also generated a strong quarter of double-digit growth in ARR and RPO, reflecting the ongoing success of our transformation. We have continued to operate successfully in a very dynamic environment, staying nimble in order to navigate the evolving conditions related to the Delta variant and global component shortages.
Now let me discuss the performance of our customer market segments. Q1 marks the third consecutive quarter of accelerating order momentum with broad-based strength across our business. Every geographic region in three of the four customer markets grew product orders at 30% or higher. We again experienced the strongest demand in over a decade as our customers increase their investments in digital transformation.
In our enterprise and commercial businesses, we achieved our fourth consecutive quarter of accelerating order growth. We also saw solid growth in public sector. Our service provider segment delivered its highest level of order growth in over five years with 66% growth as these customers address their growing bandwidth requirements. In our web scale business, our robust momentum continues.
Our performance was once again a record with order growth of over 200%. That's 120% growth on a trailing four-quarter basis. We are very pleased with the early traction of our 400-gig solutions, Cisco 8000 platform, Silicon One portfolio and rapid growth in our Acacia portfolio of optical networking products. It's clear we are expanding our footprint as our cloud growth rate is outpacing our peers.
We continue to invest in web scale innovations with differentiated customer value, launching this quarter the latest member of the Silicon One family, the 19.2 terabit P100 routing device, the 11th chip in the Silicon One family. In addition, Acacia marked a major milestone by unveiling the industry's first pluggable module capable of delivering 1.2 terabit capacity on a single wavelength. Our product revenue was up nearly $1 billion year over year, demonstrating the competitive advantages of our scale and reach, as well as our ongoing momentum. We saw broad-based demand across the majority of our product portfolio.
In addition, we continue to see steady progress in our business model transition. Our focus on subscriptions allows us to d
 long-term financial targets by investing for growth while delivering breakthrough innovation. The past 18 to 24 months have no doubt accelerated the digital revolution we are all experiencing as technology is permanently changing nearly every aspect of our lives.
The technology we build is powering the modern secure infrastructure that sits at the heart of this revolution, and Cisco is well-positioned to capture the opportunities ahead. Our customers want digital and cloud-enabled solutions that allow them to move with greater speed, agility, and efficiency. We're already seeing the positive impact of our investments to drive accelerated innovation across high-growth areas, including hybrid cloud, web scale, cloud security, 5G, WiFi 6, 400 gig, and full-stack observability. A key trend in front of us is enabling employees to work from anywhere, and this is much broader than meetings.
It's about the holistic capabilities to support a highly distributed workforce that require new infrastructure architectures, observability and security. Many companies are in the process of defining their hybrid work strategy, which will be based on the technology we build across our networking, security and collaboration portfolios. We are also leading the way with new innovation, including our recently expanded Webex portfolio, purpose-built for inclusive experiences across hybrid work, workspaces, and events. Now I'd like to discuss our Q1 performance.
Building on the momentum from last quarter, I'm proud to say we achieved another strong quarter in line with our expectations despite supply constraints, which I will discuss shortly. We delivered balanced revenue and non-GAAP EPS growth with healthy margins driven by continued economic recovery, strong execution, and exceptional demand for our products. We also generated a strong quarter of double-digit growth in ARR and RPO, reflecting the ongoing success of our transformation. We have continued to operate successfully in a very dynamic environment, staying nimble in order to navigate the evolving conditions related to the Delta variant and global component shortages.
Now let me discuss the performance of our customer market segments. Q1 marks the third consecutive quarter of accelerating order momentum with broad-based strength across our business. Every geographic region in three of the four customer markets grew product orders at 30% or higher. We again experienced the strongest demand in over a decade as our customers increase their investments in digital transformation.
 In our enterprise and commercial businesses, we achieved our fourth consecutive quarter of accelerating order growth. We also saw solid growth in public sector. Our service provider segment delivered its highest level of order growth in over five years with 66% growth as these customers address their growing bandwidth requirements. In our web scale business, our robust momentum continues.
Our performance was once again a record with order growth of over 200%. That's 120% growth on a trailing four-quarter basis. We are very pleased with the early traction of our 400-gig solutions, Cisco 8000 platform, Silicon One portfolio and rapid growth in our Acacia portfolio of optical networking products. It's clear we are expanding our footprint as our cloud growth rate is outpacing our peers.
We continue to invest in web scale innovations with differentiated customer value, launching this quarter the latest member of the Silicon One family, the 19.2 terabit P100 routing device, the 11th chip in the Silicon One family. In addition, Acacia marked a major milestone by unveiling the industry's first pluggable module capable of delivering 1.2 terabit capacity on a single wavelength. Our product revenue was up nearly $1 billion year over year, demonstrating the competitive advantages of our scale and reach, as well as our ongoing momentum. We saw broad-based demand across the majority of our product portfolio.
In addition, we continue to see steady progress in our business model transition. Our focus on subscriptions allows us to d