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IP Transit

IP Transit is the term used to describe the actual internet connectivity delivered via a leased line or broadband or other connection medium to your offices or within your colocation datacentre provider.

A simple way to explain this is that the IP transit is the water flowing through the pipewith the pipe being your physical connection.Connectivity to the Cloud
In terms of provision IP Transit is delivered in tiers depending on the inter connectivity of the provider. A typical example is a connection from a tier-1 provider such as BT who has peering arrangements with the majority of the world’s internet service providers.
Tier-2 and lower Internet Service Providers usually contract to larger organisations using peering arrangements to provide transit for customers.
Depending on the nature of your organisation IP transit may affect areas such as speed and latency especially if the internet connection is delivered over a poorly peered network as packets have to go through multiple points of presence before reaching the final destination. 

IP Transit is the essential element of any internet connection using a stable bandwidth provider will enhance your internet experience.  Below we have highlighted benefits of good IP transit.

  • In the datacentre
Datacentres are typically vendor neutral in terms of IP transit providers, this allows you to contract with a provider of your choice. This is effective when your operations may be located in another country as you will be able to contract with the national carrier depending on if that provider has a point of presence in your datacentre.
  • Leased Lines
Leased lines are essentially conduits with IP Transit being the internet connectivity element. The datacentre where your leased line terminates will typically have a number of providers you may subscribe too.
  • Costs
Generally there are tiered costing models depending on bandwidth requirements. At this time you may select to subscribe to partial or full routing with partial routing being the inexpensive choice as this would default to a cost effective bandwidth provider.

With any technology deployment there are things to keep in mind and consider. We have listed out potential pitfalls to consider when purchasing any IP Transit service.

  • Service level agreement
Your service level agreement is the guarantee for uptime availability from your provider always check that your provider delivers your bandwidth on multiple paths.
  • Price
IP transit varies from providers in terms of costs and peering arrangements. Check the routes and peering using a BGP looking glass before subscribing do not use price as the main indicator.
  • Redundancy
Does your provider rely on single fibres for peering or do they have diverse paths which allow for loss of connection but continuation of service.
  • Oversubscribed connections
IP transit providers may oversubscribe to peers based on concurrent usage patterns. If this is the case then your connectivity may suffer in the event of shared peers accessing large files or consuming bandwidth. This applies to any connection such as leased lines, broadband or within the datacentre.
At Compare the Cloud, we’re here to help you get started and to identify suitable technology partners to help with your deployment. Take a few minutes to tell us about your company in our Cloud Comparison Tool, and we’ll present you with some informed options – and help you take full advantage of IP transit options.
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