Word of the Day: session-based routing

Word of the Day Daily updates on the latest technology terms | February 19, 2019 session-based routing Session-based routing is a type of routing architecture that is application-centric and designed to route entire sessions instead of individual packets. Sessions are used in communication protocols to represent a temporary, two-way exchange of information between endpoints. Routers that employ the session-based approach keep a transient state on application flows and understand the requirements of named applications, service topology and business policies. This data is used to implement application-specific policies and plot waypoints through the network in real-time, turning the network itself into a service-centric fabric. This eliminates the need for tunneling, a technique used by legacy routers to transmit data. Legacy internet routers and protocols were designed to work on individual packets and IP addresses rather than on sessions. However, this approach is static and centralized, making it ill-suited for complex initiatives such as 5G, IoT and cloud services. In contrast, session-based routing operates on the entire communication exchange as a bidirectional flow and manages sessions at each router. This allows networks to be application specific, giving routing more context, granularity and control to improve performance, quality of experience, security, path selection, failover and priority while reducing network load. Enterprises, agencies and service providers in charge of building and operating a network can implement session-based routing. Session-based routing is fully compatible and interoperable with existing network protocols and architectures. Because session-oriented routers are aware of services topology and policy frameworks, the networks they support are sometimes referred to as context-aware networks. Benefits of session-based routing As cloud, mobility and security concepts continue to be popular among trends, network architecture will need to become more dynamic. This makes session-based routing an effective solution to transform networks in the future. Other benefits include: Enables integrated functions previously delivered by middleboxes, such as hyper-segmentation, directionality, network security and load balancing, in a single device. Lower cost and complexity compared to other adaptive routing Supports dynamic path selection, increasing throughput of applications. Better manageability for improved decision-making capabilities. Increases reliability and performance of the network, optimal for use cases such as SD-WAN, hybrid cloud, security, IoT, virtual reality and remote operations. Quote of the Day "The three biggest trends today: cloud, mobility, security - these three things fragment network flows more than anything else and will continue to drive increases in the dynamic nature of the network - more of the same doesn?t work. Session-based routing can really transform networks to enable the future." - Andy Ory Trending Terms tunneling adaptive routing load balancing MPLS route summarization network topology Learning Center A brief index of network configuration basics Network configuration is a necessary and universal facet of networking. Explore this compilation of network configuration basics and keywords you need to know. Where is the real session-based application-aware routing? Application-aware traffic management technology falls short. Our Fast Packet blogger would like session-based application-aware routing with visibility of session state, application behavior and bandwidth use. A deep dive into SD-WAN troubleshooting and monitoring Effective SD-WAN troubleshooting means IT teams need to understand the devices, connectivity, topology and more. It also helps to have a process in place before problems arise. Consider these practical troubleshooting and monitoring steps when dealing with SD-WAN issues. How NFV architecture works Network functions virtualization uses server virtualization technologies to deliver the VMs that an NFV architecture needs. Organizations can host those VMs on COTS hardware and do away with limitation-ridden proprietary devices. Router virtualization: Developing effective networking strategies Router and network virtualization hold out the promise of increased efficiency and lower capital costs when balanced with realistic operations costs. Quiz Yourself Look _________ the printer; that's where the router is. a. beside b. besides Answer Stay in Touch For feedback about any of our definitions or to suggest a new definition, please contact me at: mrouse@techtarget.com Visit the Word of the Day Archives and catch up on what you've missed! FOLLOW US About This E-Newsletter This e-newsletter is published by the TechTarget network. To unsubscribe from Whatis.com, click here. Please note, this will not affect any other subscriptions you have signed up for. TechTarget, Whatis, 275 Grove Street, Newton, MA 02466. Contact: webmaster@techtarget.com Copyright 2018 TechTarget. All rights reserved.