Specifications

General Information Guide
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Figure 7: Resilient Configuration
Advantages Over Redundancy
Resilient solutions are less costly and more flexible than redundant solutions. While the
redundancy model is highly effective and reliable, it is unnecessarily costly for some customers.
Distributed resilient networks enable you to route around failed or otherwise inaccessible
portions of an IP network. Distributed resilient networks provide the following distinct
advantages over the centralized 1+1 hardware requirements of a redundant solution:
• No single point of failure
• Lower hardware costs because of the efficient use of existing hardware
Because any controller in the network can act as a secondary controller, Mitel Resiliency can
be referred to as an "any +1" solution for system reliability. Rather than dedicating expensive,
robust hardware to solving temporary and often infrequent system failures, Mitel Resiliency
makes efficient use of a system’s existing capacity.
In resilient networks, a secondary controller is not limited to acting as a dedicated backup
call-control host. The secondary controller can also function as one of the following devices:
• Full service controller (in a configuration where resiliency support is distributed among
multiple controllers in the network)