IEEE Softwarization -November 2018
A collection of short technical articles
ETSI ZSM Architectural Framework for End-to-End Service and Network Automation
By Nurit Sprecher, ETSI ZSM
The automation of network management and service delivery is becoming essential to deliver services with agility and speed, and it is needed to ensure economic sustainability of the very diverse set of services offered by Digital Service Providers.
Intent Based Modelling Key to 5G & ZSM
By Marie-Paule Odini, Hewlett Packard Enterprise; and Andreas Krichel, Hewlett Packard Enterprise
Telecom Networks used to be rather static, hierarchical and with siloes: a fixed-broadband network with DSLAM (Digital Subscriber Line Access Multiplexer) and home CPE (Customer Premise Equipment) as leaves or a mobile network with a Core Network and base stations as leaves. With the move to softwarization and more dynamic allocation of resources on demand, for new services or to expand capacity, network topology tends to evolve more often. With 5G , this granularity and complexity of the network is exploding in terms of new resource types, service types, policies, access rights, instances and frequency of the changes. To keep up with this transformation and prevent manual errors, more and more automation is introduced in the network operations with an ultimate goal to become ‘zero touch’ as discussed in ETSI ZSM (Zero Touch Service Management)
Zero Trust Networking with Zero Touch Management
By Erik Giesa, Tempered Networks
Networking has evolved into a messy patchwork of inflexible and complicated systems with an expanding attack surface. Network administrators and security professionals responsible for designing, deploying, securing, and maintaining networks are simply overwhelmed and ill-equipped to keep up. The ‘go to’ strategy has been to implement Virtual Private Networks (VPNs), firewalls, Access Control Lists (ACLs), etc. and apply IP routing schemes intended to keep devices within the network connected, while keeping hackers and unwanted visitors out. The software and security industries set out to fix this problem by encrypting communications with protocols like SSL/TLS, HTTPS, SSH, SLADP, DNSSEC, IPSec, etc., yet networks continue to be breached. Unfortunately, these protocols on their own do not really move the needle and actually move us in the wrong direction since they are all based on TCP/IP.
Pushing the Envelope of Application Quality of Experience with SD-WANs
Anand Oswal, Enterprise Networking Business, Cisco
The growing dependence on SaaS (Software as a Service) and cloud applications, video, and Voice Over IP can stress the capabilities of branch networks using traditional WAN technology. Retail stores, for example, depend on secure and fast communication with corporate back-office applications to keep sales humming. Wireless sensors for monitoring IoT implementations are becoming more commonplace and adding rivers of data to the network. The coming wave of VR and AR applications to stores, industrial shop floors, and entertainment venues will demand even more bandwidth at locations outside the domains of corporate and campus networks.
Architecting Multi-Layer Orchestration for Telco Networks
Raghavendra Rao Tadepalli , Wipro ; and Vinay Devadatta , Wipro
Just a few years back the word “orchestration” was hardly used by Telecom operators (telcos) and was mostly used in the world of music. Today any telco management discussion is incomplete without discussions on “orchestration”. There are different views on what “orchestration” means; it is often used interchangeably with management, controller etc...
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IEEE Softwarization Editorial Board
Laurent Ciavaglia, Editor-in-Chief
Mohamed Faten Zhani, Managing Editor
TBD, Deputy Managing Editor
Syed Hassan Ahmed
Dr. J. Amudhavel
Atta ur Rehman Khan