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PRODUCTS

MULTISITES

Connecting your world – Securely

When a multi sight network is to be provisioned between all sites Comscentre use a secure private network solution based on MPLS VPN's, which provide private layer-3 network providing the same degree of privacy and security as legacy ATM/Frame Relay networks.

The next-generation MPLS (Multi Protocol Label Switching) based IP network that is capable of transporting data, voice and video over a single unified infrastructure Australia wide.

Layer 3 peer-to-peer model allows a customer's private network traffic to be routed across the optimum path within the core network (rather than traversing a fixed path of virtual circuits in the case of Frame Relay and ATM networks). This feature is especially important for real-time applications (such as voice) whereby eliminating unnecessary hops decreases delay and jitter in packet transmission.

Within the core network infrastructure, secure Private Networks are built using Multi-Protocol Label Switching (MPLS). MPLS provides the same degree of privacy and security as a Layer 2 Frame Relay or ATM transport service without having the same scaling problems and with a lower cost structure. MPLS provides a new mechanism for creating Private Networks. The service provider defines private network identifiers for different customers. The network labels packets as they enter the network to identify which private network they belong to. The network distributes routing information about each private network so that logically there is a separate routing infrastructure for each one. This solution eliminates the scaling problems associated with tunnelling and Layer 2 solutions.

MPLS is a technology that combines the benefits of layer 3 routing and layer 2 switching to enable high performance IP networks. Using MPLS, IP packets are prefixed with a label (a short, fixed-length tag, also known as an MPLS shim) as they enter the MPLS network and then are switched from node to node based on the label. At the exit point of the MPLS network, the label is removed and forwarded to the destination as a normal IP packet.

Compared to a traditional IP network, whereby each packet's header needs to be examined at each hop along the way, MPLS provides increased efficiency and speed of data throughput by optimising the packet-processing overhead in the network.

Using MPLS/Private Network technology, the architecture network provides an advanced peer-to-peer Private Network offering. The peer-to-peer model allows a customer's private network traffic to be routed across the optimum path within the core, rather than traversing a fixed path of virtual circuits (which is typical of Frame Relay and ATM networks).

This is feature is especially important for real-time applications (such as voice) whereby eliminating unnecessary hops decreases delay and jitter in packet transmission.

MPLS/Private networks have a major advantage in that the solutions are tail agnostic. The customer is free to use any combination of tail technologies, including but not limited to ATM, Ethernet, ISDN, E1, Leased Line and xDSL. The solution is efficient because no additional encapsulation is required between a customer router and the network (such as required by IPSec based virtual private networks (VPN's) or other tunnelling technologies). This eliminates unnecessary configuration complexities and keeps router processing and packet overhead low