International VPN (Continued)

Benefits

• Experience a Virtual Private Network for the cost of a shared structure - MPLS VPN networks provide all the benefits provided by Frame Relay, presenting a customer with a virtual network, based on a shared networking infrastructure.
  
  
• Differentiated quality service - MPLS provides the ability to manage differentiated quality of service within a single customer VPN.
  
  
• Reduced latency - The IS MPLS network infrastructure caters for 3 Data Classes as well as a low latency queuing class to run VoIS and video. Since the recent announcement allowing VANs to be able to run VoIS across their networks, IS can now legally run VoIS services across the local and international MPLS network infrastructure.
  
  
• High security - MPLS provides the same level of separation and security as Frame Relay. MPLS separates different IP address spaces in the shared network infrastructure by creating each network in a customer specific VRF (VPN Routing and forwarding table), allowing customers to run private address spaces within their own network or VPN, and also not be visible to Internet based attacks such as DOS attacks since the VPN and Internet are logically separated. It is possible to allow breakout from MPLS to the World Wide Web, however, it is advisable that this is only achieved by using a firewall.