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1) A High Speed Fibre Core - where you need it
Predicting the future in technology is a risky business wholesale air max online , but if your shared network is successful then one thing you can be certain about is that it will carry ever increasing amounts of traffic. A high speed core is a given, but how fast is fast enough and where should you get it from?
Whilst 1Gbits may be enough for now, make sure your provider and the rest of the equipment in your network can support a 10Gbits core. In most cases this will mean sourcing services from the major UK operators such as BT, Cable &Wireless Worldwide or Virgin Media wholesale air max china , and the most cost effective way to buy this bandwidth is as an Ethernet service. The alternates to BT can offer competitive pricing but don't usually have full network coverage everywhere you need it. Ask your operator to integrate BT Openreach services (which they will have access to) to extend their existing high speed core exactly where you need it.
2) MPLS for Privacy
The entire premise of a shared network is that all the traffic will be running over the same infrastructure. But to make that work from a security perspective you will need to segment each user group so they can't see each others traffic. These are usually known as VPNs (Virtual Private Networks). Some physical locations may need several VPNs delivered to the same site to segment different internal user groups, such as public and staff users in a library.
There are a number of ways of providing this privacy, all going under the name of VPNs. One way is to encrypt the traffic using a technology such as IPSec. An alternative is to create logically separate Ethernet (or Layer 2) networks. The third approach, and the one we'd recommend wholesale air max , is to use a technology called MPLS (Multi Protocol
Label Switching) which is implemented on certain types of routers. All the major telecoms operators use MPLS to deliver their commercial VPN services and it is the technology of choice for the latest shared public sector networks. It is extremely scalable, supporting a massive number of separate closed networks, and relatively easy to administer. As you'll see in other sections it also offers advantages in delivering Quality of Service and resilience too. Up until recently MPLS was the preserve of the telecoms operator because it was only available on very high-end routing systems, but now you can ask your integrator or operator to design it into your own dedicated shared network. The design and operational experience required for MPLS or Ethernet VPN's is not trivial wholesale nike air max , so whichever one you select, we'd recommend you work with someone experienced in these technologies.
3) Quality of Service
Privacy for the different users of the network is only half the problem. The other part of the challenge is how to allocate each organisation their fair share of capacity. Ideally you want any of the users to have access to the entire capacity of the network if it is available, but also to ensure that they don't hog bandwidth in the event of congestion or partial network failure. You may also want certain applications, such as voice or real-time video wholesale air max white , to be given priority over others. Collectively these features are known as Quality of Service (QoS).
QoS comes into play during the periods when the network is congested. QoS can prioritise the delivery of specific users, locations or applications. Different QoS mechanisms deliver a range of certainty about the amount of capacity reserved for any particular usage. The most robust QoS mechanism available on an IP network is MPLS. It might not be practical to deploy MPLS across an entire network but it can be mapped into other IP (Internet protocol) QoS mechanisms where necessary.
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