This includes guidelines on the physical handling of server equipment. IT professionals are finding that theyand their companys business managersare more determined than ever to use the latest digital technology to gain a competitive advantage. Many large data center providers have data centers located in geographically distinct regions, so that if a natural disaster or political disruption occurs in one region, operations can be failed over to a different region for uninterrupted services. Figure 1: Example of a Clos architecture. They shift fromnorth-south, between devices within and outside the data center, toeast-west, between devices within the data center. where application processing is performed at data center scale. The data center network plays a crucial role in an organizations ability to meet business objectives. Intent-based networking (IBN) An intent-based network takes an organization's desired outcomes at a high level as input and sets up the network to achieve these objectives. The fabric itself, when paired with an overlay, is called theunderlay. Robison notes that they never want the rack to be the limiting factor. Unlike traditional multitier architectures, a data center fabric effectively flattens the network architecture, thereby reducing the distance between endpoints within the data center. Were the worlds leading provider of enterprise open source solutionsincluding Linux, cloud, container, and Kubernetes. 'This new data center will be an AI-optimized design, supporting liquid-cooled AI hardware and a high-performance AI network connecting thousands of AI chips together for data center-scale AI . Designing a flexible architecture that has the ability to support new applications in a short time frame can result in a significant competitive advantage. For those who want to maximize automation and machine learning, we offer session smart routers. Hands-on, lab-based, self-paced training. Free training and discounted certifications. Learn how Junipers Experience-First Networking delivers differentiated experiences to service providers and their customers. Data Center Architecture Overview Note ImportantUpdated content: The Cisco Virtualized Multi-tenant Data Center CVD ( http://www.cisco.com/go/vmdc) provides updated design guidance including the Cisco Nexus Switch and Unified Computing System (UCS) platforms. We start with a discussion on the characteristics of a DCN and show how these characteristics drive the development of the network topology, architecture, and network cabling in data centers. Following Ethernet's victory over InfiniBand and Fiber Channel in data center networks, the problem arose of making Ethernet work in today's . Telemetry:With the Junos Telemetry Interface (JTI), programmers will notice a distributed network analytic engine that can accumulate, organize, and provide real-time network data and event information. In a fabric design, there isnt a network core, which changes the fundamental nature of the network itself. Upon successful completion, Red Hat will conduct architectural, operational and site readiness assessments to prepare actual production designs for the management and workload locations of the service provider network. Aruba CX switches are based on a distributed, non-blocking architecture that delivers true wired speed performance from 1GbE to 100GbE. Switches provide both Layer 2 and Layer 3 topologies, fulfilling the various server broadcast domain or administrative requirements. Juniper has everything a networking team needs to design, build, deploy, and operate a modern data center network. Articles by network engineers, for network engineers. Many of the principles of database systems carry to . We have the MX Universal series, which offers SDN-enabled routers that can handle growth. Although Figure1-6 demonstrates a four-way ECMP design, this can scale to eight-way by adding additional paths. Hear from Juniper Networks CEO Rami Rahim as he visits the lab to hear about the powerful performance of the 400G-capable PTX10008 router. Note that not all of the VLANs require load balancing. Learn more about the benefits of Junipers Client-to-Cloud Architecture. Air cooling is basically air conditioningspecifically, computer room air conditioning (CRAC) targeted at the entire server room, or at specific rows or racks of servers. safely transport, position, and install and remove IT equipment for major transitions and minor moves. Server cluster designs can vary significantly from one to another, but certain items are common, such as the following: Commodity off the Shelf (CotS) server hardwareThe majority of server cluster implementations are based on 1RU Intel- or AMD-based servers with single/dual processors. Virtualization also enables software-defined infrastructure (SDI)infrastructure that can be provisioned, configured, run, maintained and spun down programmatically, without human intervention. Most modern data centerseven in-house on-premises data centershave evolved from traditional IT architecture, where every application or workload runs on its own dedicated hardware, to cloud architecture, in which physical hardware resourcesCPUs, storage, networkingare virtualized.Virtualization Spine-leaf data center fabric architecture. Explore options and offers to connect with the networking solution you need. The first virtualizable computers, mainframes can process billions of calculations and transactions in real time. By Karthik Narain | February 1, 2023. Deliver security and networking as a built-in distributed service across users, apps, devices, and workloads in any cloud. Jumbo frame supportMany HPC applications use large frame sizes that exceed the 1500 byte Ethernet standard. Back-end high-speed fabricThis high-speed fabric is the primary medium for master node to compute node and inter-compute node communications. In this data center model, all IT infrastructure and data is hosted on-premises. Air cooling is basically air conditioningspecifically, computer room air conditioning (CRAC) targeted at the entire server room, or at specific rows or racks of servers. The middle layer of Fog Nodes (FN) is the layer of fog. Designing the modern data center begins with the careful placement of good bones. Data center network architecture must be highly adaptive, as managers must essentially predict the future in order to create physical spaces that accommodate rapidly evolving tech. Celebrating innovators who use Juniper solutions to make a difference in the world. With advanced analytics built in, the modern data center network eliminates this challenge by enabling the network to quickly detect deviations and conditions of interest and provide actionable insights for fast root-cause identification. NAS provides data storage and data access to multiple servers over a standard Ethernet connection. Fire:For obvious reasons, data centers have must be equipped with fire-prevention equipment, and it must be tested regularly. Data center fabrics of all kinds share another design goal. For obvious reasons, data centers have must be equipped with fire-prevention equipment, and it must be tested regularly. Web and application servers can coexist on a common physical server; the database typically remains separate. Today's data center networking architecture and operations teams face four main challenges: design, reliable change, extensibility, and scalability. Big Data and Modern Data Applications Simplify Big Data infrastructure management and minimize downtime with cost-effective, uniform failover protection. EVPN-VXLANis a standards-based data center fabric protocol that serves as the control plane to provide network mapping intelligence. In many cases, application speed and responsiveness play a critical role in providing innovative experiences. Instead, the focus tends to shift to heating, cooling, redirecting the air, and replacing antiquated servers. . These data centers were built to meet global customers need for local data access, high reliability and performance, and low latency. The core layer runs an interior routing protocol, such as OSPF or EIGRP, and load balances traffic between the campus core and aggregation layers using Cisco Express Forwarding-based hashing algorithms. As application requirements continue to change to address shifting business demands, data center networks mu st evolve as well. While intelligence can be moved to the core of a traditional hierarchical network (for instance, to implement policy), the intelligence in a spine-and-leaf fabric is moved to the edge. Flattening the data center network architecture in this way provides a number of benefits: An Ethernet VPN (EVPN)-Virtual Extensible LAN (VXLAN) overlay is built on top of the underlay infrastructure. Junipers data center fabric solutions include two main components. Unlock the full power and potential of your network with our open, ecosystem approach. As customers service and experience expectations continue to increase, technology must advance to meet or exceed them. 2023 Cisco and/or its affiliates. A container platform to build, modernize, and deploy applications at scale. Data center facilities are outfitted with equipment to monitors static electricity and discharge it safely. Here, operators can program the OS to manage network access and data plane services. This type of fabric is anoverlaynetwork that sits on top of an IP-fabric underlay. The data center network design is based on a proven layered approach, which has been tested and improved over the past several years in some of the largest data center implementations in the world. ". By utilizing a proven reference architecture with Red Hat products and solutions, service providers will have a higher performance and more robust solution for their telco workloads. Cloud-nativedevelopment. It also averts outages with predictive insights, shortens time to resolution, and diminishes human error with change control and fast, all-network rollback. The DCN serves as a communication backbone and plays a pivotal role in optimizing data center operations., as it interconnects all of the data center resources together. . GE attached server oversubscription ratios of 2.5:1 (500 Mbps) up to 8:1(125 Mbps) are common in large server cluster designs. Learn how Junipers Experience-First Networking delivers differentiated experiences to service providers and their customers. We do what we have to do, to make it happen, says Boyll. Apstra AOS enables you to automate, manage, and monitor your data center fabric simplifying operations for Day 0 and beyond. Junipers joint solution with Apstra enables you to easily manage your physical data center infrastructure. 1999 -2023 Juniper Networks, Inc. All rights reserved. Instead, a whole new generation of highly skilled IT professionals grew into new roles. Colo managers are also accustomed to working with clients of all sizes and varying resources. This mesh fabric is used to share state, data, and other information between master-to-compute and compute-to-compute servers in the cluster. The back-end high-speed fabric and storage path can also be a common transport medium when IP over Ethernet is used to access storage. Figure1-6 Physical View of a Server Cluster Model Using ECMP. Keep yourself updated on SDN, VXLAN and other technologies with this quiz. Liquid cooling technologies pump liquid directly to processors, or in some cases immerse servers in coolant. Resiliency is achieved by load balancing the network traffic between the tiers, and security is achieved by placing firewalls between the tiers. Products, services and an enhanced support offering are aligned to a pre-integrated reference architecture that allows service providers to deploy a fully tested and interoperable solution for CNFs, VNFs, or both side-by-side. The top 500 supercomputer list at www.top500.org provides a fairly comprehensive view of this landscape. This platform works seamlessly with other services, such as Azure Data Lake Storage Gen2, Azure Data Factory, Azure Synapse Analytics, and Power BI. . For those needing universal metro routers, we offer those too. Can be a large or small cluster, broken down into hives (for example, 1000 servers over 20 hives) with IPC communication between compute nodes/hives. The software also supports virtually any topology and any data center location. The fabric allows for a flattened network architecture in which any attached server or storage node can connect to any other server or storage node. Data center servers come in several form factors: Rack-mount serversare wide, flat standalone serversthe size of a small pizza box designed to be stacked on top of each other in a rack, to save space (vs. a tower or desktop server). Data center-scale computing has increasingly come to rely on CPUs for general-purpose computing, GPUs for accelerating computing, and DPUs for data center infrastructure processing. Scalable fabric bandwidthECMP permits additional links to be added between the core and access layer as required, providing a flexible method of adjusting oversubscription and bandwidth per server. L3 plus L4 hashing algorithmsDistributed Cisco Express Forwarding-based load balancing permits ECMP hashing algorithms based on Layer 3 IP source-destination plus Layer 4 source-destination port, allowing a highly granular level of load distribution. These solutions accommodate physical and virtualized infrastructures, enable simplified management, and perfectly meet the requirements of virtualization, cloud computing, and big data. Apply a Zero Trust framework to your data center network security architecture to protect data and applications. The remainder of this chapter and the information in Chapter3 "Server Cluster Designs with Ethernet" focus on large cluster designs that use Ethernet as the interconnect technology. Its a common misconception that the growing popularity of edge networks and multi-tenant sites is somehow killing the data center. The cloud complements and supports traditional data centers, as opposed to replacing them. Businesses can benefit from the option of a co-location facility when tech is being developed more quickly than the infrastructure that was. . The traditional high performance computing cluster that emerged out of the university and military environments was based on the type 1 cluster. Fibre Channel interfaces consist of 1/2/4G interfaces and usually connect into a SAN switch such as a Cisco MDS platform. Compute nodesThe compute node runs an optimized or full OS kernel and is primarily responsible for CPU-intense operations such as number crunching, rendering, compiling, or other file manipulation. This chapter is an overview of proven Cisco solutions for providing architecture designs in the enterprise data center, and includes the following topics: The data center is home to the computational power, storage, and applications necessary to support an enterprise business. Do you have time for a two-minute survey? TheUptime Institute(link resides outside ibm.com) uses a four-tier system to rate the redundancy and resiliency of data centers: Tier IProvides basic redundancy capacity components, such as uninterruptible power supply (UPS) and 24/7 cooling, to support IT operations for an office setting or beyond. Two of them have contributed to this series of articles: Chris Boyll, TAC Manager at Flexential, and A.D. Robison, VP Data Center and IT Services, North America at. Human error:Manual operations are a primary cause of networking issues. Hear from Juniper Networks CEO Rami Rahim as he visits the lab to hear about the powerful performance of the 400G-capable PTX10008 router. Once in production, the service provider will then choose different services that can include lifecycle management for continuous integration, operations and network optimization. Explore options to quickly connect you with the networking solution you need. The Cisco Catalyst 6500 with distributed forwarding and the Catalyst 4948-10G provide consistent latency values necessary for server cluster environments. The PTX series is also optimized for WAN core and data center use. Apply cloud principles to metro networks and achieve sustainable business growth. Dataflow In addition to helping service providers adopt the correct technology, Red Hat offers a holistic approach to network transformation and addresses the challenges service providers will face on their journey. As the volume of data keeps growing rapidly, more and more storage devices, servers and network devices are continuously added into data centers to store, manage and analyze the data. Tier IIIAdds redundant components as a key differentiator from other data centers. Learn more about the benefits of Junipers Client-to-Cloud Architecture. Although modern networks still rely on physical components (routers, switches, firewalls, servers, etc. New storage and servers must be organized according to industry standards and whatever is required for optimal airflow, power, cooling, access, and connectivity. One customer sent us their equipment, and it didnt have rails. Discover cloud delivered or on-premise offerings. Requirements of a Data Center Network The components of the server cluster are as follows: Front endThese interfaces are used for external access to the cluster, which can be accessed by application servers or users that are submitting jobs or retrieving job results from the cluster. The recommended server cluster design leverages the following technical aspects or features: Equal cost multi-pathECMP support for IP permits a highly effective load distribution of traffic across multiple uplinks between servers across the access layer. OpenShift can be deployed in different footprints including a three node, single node and remote worker node to meet demanding requirements in space and power-constrained environments. Make your network threat aware with Juniper Connected Security. As a result, how . The layers of the data center design are the core, aggregation, and access layers. Apstra is the only intent-based networking software to support multiple vendors. With thousands of servers connected by various cables, cable management is an important data center design concern. Learn about data centersthe physical facilities that make enterprise and cloud computing possible. Besides our hardware having access to the neatly structured yet versatileJunos OS, our systems also have IP fabric, threat prevention, and EVPN-VXLAN capabilities. EVPN-VXLAN using virtual and/or bare-metal servers enables deployment of much larger networks. You get different amounts of pass-through space between them, different ways to ground them and mount them, but most are very similar, says Chris Boyll. Test yourself on modern data center networking architecture Evolving business needs demand a new approach to data center networking. Building a spine-leaf architecture with Aruba CX Switching. The documentation set for this product strives to use bias-free language. In the preceding design, master nodes are distributed across multiple access layer switches to provide redundancy as well as to distribute load. There is a fog layer in this architecture. A data center network enables operators to supply digital services to end users. Mesh/partial mesh connectivityServer cluster designs usually require a mesh or partial mesh fabric to permit communication between all nodes in the cluster. A flexible, stable operating system to support hybrid cloud innovation. Juniper offers best-in-class data center QFX Series Switches, which form a reliable switching fabric. Many have adopted a hybrid approach. In a colocation facility, the client company owns all the infrastructure, and leases a dedicated space to host it within the facility. Even companies using on-premises data centers can add capacity on demand by bursting workloads to the cloud when necessary. Master nodes are typically deployed in a redundant fashion and are usually a higher performing server than the compute nodes. Most servers feature dual power supplies. These make building, . This contrasts to scaling up by adding more capacity in existing devices, as in a traditional hierarchical design. Tier III facilities require no shutdowns when equipment needs maintenance or replacement. Learn more about intent-based networking. Operators must build racks to hold dense, multilayer equipment supporting large amounts of data in a very small space. Note ImportantUpdated content: The Cisco Virtualized Multi-tenant Data Center CVD (http://www.cisco.com/go/vmdc) provides updated design guidance including the Cisco Nexus Switch and Unified Computing System (UCS) platforms. But there are five areas that really set Fabric apart from the rest of the market: 1. Do you have time for a two-minute survey? Apstra accelerates everyday operations with a single source of truth, powerful analytics, and root-cause identification so you can quickly pinpoint and resolve issues. Data center facilities are outfitted with equipment to monitors static electricity and discharge it safely. Modern data center fabrics typically use a two-tier spine-and-leaf architecture, also known as aClos fabric. Humidity:High humidity can cause equipment to rust; low humidity can increase the risk static electricity surges (see below). Beyond increasing port capacity, you can also increase overall fabric scalability by creating multiple spine-and-leaf fabricpodsand interconnecting them with an additional spine-like layer. In the modern data center environment, clusters of servers are used for many purposes, including high availability, load balancing, and increased computational power. Latency, the enemy of speed, can be . Anyone who goes online is dependent on data center networks. Non-blocking or low-over-subscribed switch fabricMany HPC applications are bandwidth-intensive with large quantities of data transfer and interprocess communications between compute nodes. This software takes the networking teams intent the expressed business objectives and converts it into actionable network policies that are then executed as device-specific configurations, regardless of hardware vendor. The server cluster model is most commonly associated with high-performance computing (HPC), parallel computing, and high-throughput computing (HTC) environments, but can also be associated with grid/utility computing. ), to manage them globally and coherently. The time-to-market implications related to these applications can result in a tremendous competitive advantage. Figure1-3 Logical Segregation in a Server Farm with VLANs. The choice of form factor depends on many factors including available space in the data center, the workloads being run on the servers, the available power, and cost. Clients send cabinets fully cabled, tested, and ready for installation. ), they also depend on software components such as management and automation systems and analytics to reliably and efficiently deliver data and services among end users. A data center network consists of switches, routers, and other hardware components that work together to provide the connectivity and security needed to run applications and process data. Typically, cloud service providers maintain smaller, edge data centers located closer to cloud customers (and cloud customers customers). Rob McManusis a Principal Product Marketing Manager at Red Hat. The industry experience indicates that, instead of a huge number of servers added at a time, the data center network also expands gradually by adding a small number of servers from time to time. All our equipment contains Junos operating system, making it easy for them to connect. In addition to an evolving architecture, service provider networks are moving from virtual network function (VNF) deploymentstypically software, virtual machine (VM)-based versions of proprietary hardware-based approachesto cloud-native network functions (CNFs) that utilize container-based architectures and microservices.