1. Introduction
These Application notes provide instructions on how to configure Local Survivable Processor (LSP) with the Juniper VF 3000 SBC in an Avaya Hosted IP Telephony (HIPT) R3.0 Solution Environment. The solution described in this document requires the addition of an extra network element, a Network Address Translation (NAT) device at the edge of the service provider’s data center if customers with LSPs are to be supported. This document covers the configuration of the NAT device, as well as the other components of the solution.
2. Background
2.1. On Demand Solutions
The Session Border Controller (SBC) function is an essential component of the two Avaya On Demand/Hosted offers. The base offers for the Avaya HIPT R3.0/3.1 and Hosted Contact Center (HCC) R3.0 will make use of the Juniper VF 3000 SBC from the Juniper
Figure 1 shows the high-level network architecture for a typical Avaya On Demand/Hosted solution. The data center is owned and operated by the service provider. In this case the hosts in the data center are in a private address space owned and managed by the service provider. The individual customer networks include Avaya G250, G350 and G700 H.248 Media Gateways and H.323 phones at the enterprise sites. The media gateways may include a Local Survivable Processor (LSP) to support local survivability. The enterprise site is characterized by a private IP address space owned and managed by the enterprise customer. Although not shown in the diagram, each enterprise customer could have multiple, diversely located sites, any or all of which may have MGs and LSPs in addition to endpoints. The IP address spaces in these sites are independent, and could overlap. Transport between the enterprise sites and the data center in this example occurs over the public addressed WAN. A NAT function is therefore required at the
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