Our SD-WAN group has several decades experience designing Global and national WAN services. In 2016, we set up a specific team exclusively focussed on SD-WAN services across the BT Internet and MPLS backbone with Cisco iWAN capability.
We help account manage businesses looking to gain a competitive advantage by implementing SD-WAN services to add speed, agility and responsiveness to their business and customers.
Our goal is to educate first and foremost. Our free SD-WAN workshop offers insights into the benefits, features, opportunity, risks and pitfalls associated with buying software-based WAN technology.
The sessions are free and available at your office across the UK.
Above. SD-WAN Services over the Internet.
The result could be an unstable path for your application causing issues we’re all familiar with across networking. While Cisco IP SLA will measure path performance, the actual route remains unmodified.
We think of the Internet as being a mostly inferior network to layer 3 Private MPLS, but the reality is that most public networks are well scaled and utilise the traffic engineering properties of the MPLS protocol.
SD-WAN with PfR (Performance Routing) supports intelligent path control based on the application class. If a path becomes unstable, alternative connectivity is selected for the application to improve performance until the original path properties improve.
In scenarios where bandwidth becomes congested, further connectivity will be used if available to compliment primary connectivity.
This feature should not be understated. With traditional WAN failover, primary circuits often remain up when services become degraded. The failover state is binary - unless the primary is hard down, the failover circuit remains unused.
Above. IPR - Intelligent Path Control
Cisco WAAS looks for repeating patterns in data - if your business sends the same content with slight changes, the WAAS end-point will locally duplicate the data. This technology is primarily data caching, making intelligent use of your WAN. Chatty application traffic (TCP) is improved via local acknowledgments.
The concepts behind Cisco iWAN are comprehensive in scope consisting of Zone-based Firewall services and Cloud Web Security.
A stateful firewall can detect DDOS (Distributed Denial of Service) intrusions.
Zone based firewalling further decreases costs as there is no need for secondary devices when segmenting your network infrastructure.
Cloud usage is at the forefront of network security policies with zero-day threat and malware protection without the need to procure further dedicated hardware.
One of the reasons sited by proponents of SD-WAN for the decline of MPLS services is sited as cloud applications via Internet-based access. Think salesforce.com, Amazon, Microsoft and Google for a start. And, changing your vendor to a cloud-based model is a much simpler procurement exercise vs. Capex based on-site hardware.
If applications reside on the Internet, layer 3 Private MPLS is viewed as restrictive since interconnects or public IP breakout is required to access resources. Software WAN allows the corporate network to communicate securely but also to access cloud applications regardless of transport as mentioned earlier.
The Internet is a much more scaled platform when compared to even a few years ago due to the massive expansion of Ethernet. With connectivity to cloud providers, users and employees experience a standard level of service whether they’re working from an HQ, branch or home.
The benefit of consolidating voice and data into one circuit is familiar to the majority of IT Managers. Converging applications has obvious cost savings together with the simplification of infrastructure.
SD-WAN is enabling the Enterprise to fully leverage sophisticated feature-rich collaboration via cloud capabilities. Services such as Cisco Webex provide virtual meeting capability by combining voice, video and desktop sharing. Software WAN technologies further enhance access to virtualised cloud services for your users regardless of location. 3G and 4G secured Internet, Broadband or even the Hotel Wifi.
While SD-WAN does not offer end to end QoS (Quality of Service), the features offer traffic prioritisation and state sensing meaning users are aware their current connection may not support delay sensitive applications.
The benefits to the users are higher employee satisfaction which in turn has an advantage to the business with better productivity and cost savings.
As BYOD hardware is not typically centrally managed, an SD-WAN client can apply a standardised pre-determined level of security across multiple Internet connectivity types.
Further diversity is available via additional partnerships where needed. 3rd party Internet with 3G, 4G and leased lines are options for integration.
While our primary backbone choice remains BT Global and UK Services, we have a range of other options providing high availability.
WAN / SIP / TRADITIONAL TELEPHONY / LAN / WIRELESS / CALL RECORDING / MERAKI
DATA CENTRE / SERVERS / VIRTUALISATION / STORAGE / DATA MIGRATION / BACKUP / CONTENT FILTERING / SECURITY AND PCI COMPLIANCE
BT COMPUTE IAAS / PRIVATE CLOUD IAAS / OFFICE 365 INTEGRATION / DESKTOP VIRTUALISATION / MICROSOFT AZURE
MPLS / VPLS / ETHERFLOW ETHERNET / BTNET LEASED LINE / CLOUD / SECURITY
24/7 SERVICE DESK / TECHNICAL EXPERTS / ITIL3 PROCESSES / ISO27001 SECURITY / ISO20000 ITSM / EVENT MANAGEMENT / IL3 / GPG13 SERVICES / 3RD PARTY MANAGEMENT