Welcome!

Related Topics: Containers Expo Blog, @CloudExpo, SDN Journal

Containers Expo Blog: Blog Post

Two Options for Web Content Filtering at the Speed of Now | @CloudExpo #SDN #Cloud #Virtualization

To ensure service level and capacity as internet traffic increases, organizations need higher-speed networks

Two Options for Web Content Filtering at the Speed of Now

Because not everything the internet offers is suitable for all users, organizations use web filters to block unwanted content. However, filtering content becomes challenging as networks speeds increase. Two filtering architectures are explored below, along with criteria to help you decide which option is the best fit for your organization.

How Fast Can You Filter?
To ensure service level and capacity as internet traffic increases, organizations need higher-speed networks. In telecom networks, to serve hundreds of thousands of users, 100 Gbps network links are introduced to keep up with the demand. Today, the market has reached a state of maturity regarding solutions for web content filtering at 1 Gbps and 10 Gbps, but filtering at 100 Gbps poses a whole set of new challenges.

To filter content this quickly, the system must expend a huge supply of processing power. Furthermore, there is a need for distribution of traffic across available processing resources. This is usually achieved with hash-based 2-tuple or 5-tuple flow distribution on subscriber IP addresses. In telecom core networks, subscriber IP addresses are carried inside GTP tunnels and, consequently, support for GTP is required for efficient load distribution when filtering traffic in telecom core networks.

Building Filtering Capacity
There are two choices to meet the needs of high-speed filtering by processing resources and providing load distribution. The first option is a stacked, distributed server solution. It is comprised of a high-end load balancer and standard COTS servers equipped with several 10 Gbps standard NICs. The load balancer connects in-line with the 100 Gbps link and load distributes traffic to 10 Gbps ports on the standard servers. The load balancer must support GTP and flow distribution based on subscriber IP addresses.

Because the load balancer cannot guarantee a100 percent even load distribution, there is a need for overcapacity on the distribution side. A reasonable solution comprises 24 x 10 Gbps links. For this solution, three standard servers, each equipped with four 2 x 10 Gbps standard NICs, in total provide the 240 Gbps traffic capacity (3 x 4 x 2 x 10 Gbps). 24 cables for 10 Gbps links round out the solution.

Though the load balancer is costly, the standard COTS servers and standard NICs offset the expense with their reasonable cost. The solution involves many components and complex cabling. Furthermore, the rack space required is relatively large, and system management is complex due to the multi-chassis design.

The second option consolidates load distribution, 100G network connectivity and the total processing power in a single server. This is called a single, consolidated server solution, and it requires a COTS server and two 1 x 100G Smart NICs. Since up to 200 Gbps traffic needs to be processed within the same server system, the server must be equipped with multiple cores for parallel processing. For example, a server with 48 CPU cores can run up to 96 flow processing threads in parallel using hyper-threading.

To fully use CPU cores, the Smart NIC must support load distribution to as many threads as the server system provides. Also, to ensure balanced use of CPU cores, the Smart NIC must support GTP tunneling. The Smart NIC should also support these features at full throughput and full duplex 100 Gbps traffic load, for any packet size.

This single-server solution has multiple benefits. It provides a one-shop system management, where there are no complex dependencies between multiple chassis. The cabling is simple due to single component usage. The footprint in the server rack is very low, thereby reducing rack space hosting expenses.

Determining Factors
The technical specifications for a high-speed web filtering solution are important, but so is the total cost of ownership. Here are some significant parameters for operations expenditure (OPEX) and capital expenditure (CAPEX) calculations. For OPEX, consider rackspace hosting expenses, Warranty and support, and power consumption - including cooling - for servers, NICs and load balancers. CAPEX considerations include the costs of software, servers and Smart NICs or standard NICs.

So, which web content filtering option is right for your organization? It depends on your use case. The difference in costs between the two options will certainly be a determining factor, so consider carefully which method will best serve your needs and those of your customers. If your situation is better served by a simplified, consolidated method, take a closer look at how Smart NICs can provide the support for the speed you need.

More Stories By Sven Olav Lund

Sven Olav Lund is a Senior Product Manager at Napatech and has over 30 years of experience in the IT and Telecom industry. Prior to joining Napatech in 2006, he was a Software Architect for home media gateway products at Triple Play Technologies. From 2002 to 2004 he worked as a Software Architect for mobile phone platforms at Microcell / Flextronics ODM and later at Danish Wireless Design / Infineon AG.

As a Software Engineer, Sven Olav started his career architecting and developing software for various gateway and router products at Intel and Case Technologies. He has an MSc degree in Electrical Engineering from the Danish Technical University.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Latest Stories
SYS-CON Events announced today that SIGMA Corporation will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. uLaser flow inspection device from the Japanese top share to Global Standard! Then, make the best use of data to flip to next page. For more information, visit http://www.sigma-k.co.jp/en/.
Most of the time there is a lot of work involved to move to the cloud, and most of that isn't really related to AWS or Azure or Google Cloud. Before we talk about public cloud vendors and DevOps tools, there are usually several technical and non-technical challenges that are connected to it and that every company needs to solve to move to the cloud. In his session at 21st Cloud Expo, Stefano Bellasio, CEO and founder of Cloud Academy Inc., will discuss what the tools, disciplines, and cultural...
Why Federal cloud? What is in Federal Clouds and integrations? This session will identify the process and the FedRAMP initiative. But is it sufficient? What is the remedy for keeping abreast of cutting-edge technology? In his session at 21st Cloud Expo, Rasananda Behera will examine the proposed solutions: Private or public or hybrid cloud Responsible governing bodies How can we accomplish?
SYS-CON Events announced today that N3N will exhibit at SYS-CON's @ThingsExpo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. N3N’s solutions increase the effectiveness of operations and control centers, increase the value of IoT investments, and facilitate real-time operational decision making. N3N enables operations teams with a four dimensional digital “big board” that consolidates real-time live video feeds alongside IoT sensor data a...
DevOps at Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to w...
SYS-CON Events announced today that NetApp has been named “Bronze Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. NetApp is the data authority for hybrid cloud. NetApp provides a full range of hybrid cloud data services that simplify management of applications and data across cloud and on-premises environments to accelerate digital transformation. Together with their partners, NetApp em...
Real IoT production deployments running at scale are collecting sensor data from hundreds / thousands / millions of devices. The goal is to take business-critical actions on the real-time data and find insights from stored datasets. In his session at @ThingsExpo, John Walicki, Watson IoT Developer Advocate at IBM Cloud, will provide a fast-paced developer journey that follows the IoT sensor data from generation, to edge gateway, to edge analytics, to encryption, to the IBM Bluemix cloud, to Wa...
With the rise of DevOps, containers are at the brink of becoming a pervasive technology in Enterprise IT to accelerate application delivery for the business. When it comes to adopting containers in the enterprise, security is the highest adoption barrier. Is your organization ready to address the security risks with containers for your DevOps environment? In his session at @DevOpsSummit at 21st Cloud Expo, Chris Van Tuin, Chief Technologist, NA West at Red Hat, will discuss: The top security r...
There is huge complexity in implementing a successful digital business that requires efficient on-premise and cloud back-end infrastructure, IT and Internet of Things (IoT) data, analytics, Machine Learning, Artificial Intelligence (AI) and Digital Applications. In the data center alone, there are physical and virtual infrastructures, multiple operating systems, multiple applications and new and emerging business and technological paradigms such as cloud computing and XaaS. And then there are pe...
SYS-CON Events announced today that B2Cloud will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. B2Cloud specializes in IoT devices for preventive and predictive maintenance in any kind of equipment retrieving data like Energy consumption, working time, temperature, humidity, pressure, etc.
DevOps at Cloud Expo – being held October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's largest enterprises – and delivering real r...
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend 21st Cloud Expo October 31 - November 2, 2017, at the Santa Clara Convention Center, CA, and June 12-14, 2018, at the Javits Center in New York City, NY, and learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
Your clients expect transactions to never fail, cloud access to be fast and always on, and their data to be protected - no exceptions. Hear about how Secure Service Container (SSC), an IBM-exclusive open technology, enables secure building and hosting of next-generation applications, both cloud and on-premises. SSC protects the full stack from external and insider threats, allows automatic encryption of data in-flight and at-rest, and is tamper-resistant during installation and runtime – with no...
SYS-CON Events announced today that Suzuki Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Suzuki Inc. is a semiconductor-related business, including sales of consuming parts, parts repair, and maintenance for semiconductor manufacturing machines, etc. It is also a health care business providing experimental research for...
SYS-CON Events announced today that Massive Networks, that helps your business operate seamlessly with fast, reliable, and secure internet and network solutions, has been named "Exhibitor" of SYS-CON's 21st International Cloud Expo ®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. As a premier telecommunications provider, Massive Networks is headquartered out of Louisville, Colorado. With years of experience under their belt, their team of...