AppendixD

Creating PVPs

This appendix describes the procedure for creating PVPs on Avaya M770 ATM Modules.

Creating PVPs

What do you do when you want all VCs from a particular VPI to be switched from one endpoint to another? You would define a Permanent Virtual Path (PVP). When a PVP is configured, the cell is switched using only its VPI - the VCI is ignored. The VPI on the ingress port can be the same or different than the VPI on the egress port. This section contains examples on defining PVPs. The following 2 examples show in detail how to define PVPs between ports on the same module and between ports on different modules in the ATM switch.

Example 1

Define a PVP that takes all VCs coming in on slot 1 port 1 for VPI 6 and switch them to slot 1 port 2 VPI 7.

Example 2

Define a PVP that takes all VCs coming in on slot 1 port 1 for VPI 6 and switch them to slot 3 port 2 VPI 7.

There are four steps in creating a PVP on the M770 ATM switch:

1Define the VPI range that is used for VP switching

2Define the VPI range to be used for Signalled VPs. The rest are used for Permanent VPs

3Create the Traffic Descriptor (TD) that will be used for the PVP

4Create the PVP.

Before you get started, there is an additional command/feature in the M770 ATM switch to help you configure PVPs. This is the ability to change the maximum number of VPIs on the module. For example, the default configuration for the M15- 155 is 3 bits for the VPI range and 12 bits for the VCI range. This gives you a total of 8 VPIs (23) to play with. If more VPIs are needed, you can “steal” them from the VCI range. By using the command hardware vpivcirange, you can allocate up to 6 bits for the VPI range (26 or 64 VPIs). For more information on changing the VPI and VCI bit range, please see section "“Managing the number of VPI and VCI bits” on page 98.

For our examples, it is assumed that the module is an M15-155 and its VPI and VCI bits are set to 3 and 12 accordingly.

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Avaya M770 manual Creating PVPs

M770 specifications

The Avaya M770 is a highly advanced media processor that is part of Avaya's robust suite of communication solutions designed for enterprise environments. This powerful device caters to the needs of modern businesses, providing an efficient platform for managing voice, video, and data communications.

One of the standout features of the Avaya M770 is its high-density processing capability. The device can handle a significant volume of calls concurrently, which makes it an ideal solution for large organizations requiring a reliable communication backbone. The M770 supports a variety of codecs, ensuring high-quality audio and video transmission, which is pivotal for maintaining clarity during communication.

Incorporating cutting-edge technologies, the Avaya M770 is built upon a scalable architecture that allows for easy expansion as business needs evolve. This scalability means organizations do not have to invest in new equipment every time they grow; they can simply add additional resources to the existing system. This makes the M770 a cost-effective solution in the long run.

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In conclusion, the Avaya M770 is a comprehensive media processing solution that combines scalability, security, and ease of integration to meet the demands of contemporary enterprises. With its ability to support high-density communications and its advanced management capabilities, it serves as a critical asset for businesses looking to enhance their communication infrastructure.