Avaya 4600 Series IP Telephones Nota de aplicación descargar pdf (Pagina 17)

AL; Reviewed:

SPOC 2/21/2006

Solution & Interoperability Test Lab Application Notes

17 of 20

ExpandAccltor.doc

Step Description

By default, IPComp compression is enabled and there is no need to configure it. The

default configuration is not listed when the “show run” command is entered into the

system to list current running configuration.

Repeat Steps 1 to 8 for the Expand Network Accelerator in the Branch Site. Ensure the

proper IP addresses are entered, as the IP addresses may be different from what is shown

above for the Main Site.

5. Interoperability Compliance Testing

The interoperability compliance testing focused on assessing the impact that the Expand Networks

Accelerator has on Avaya VoIP traffic traversing the PPP link connecting the Main and Branch sites

simulating a WAN. Compression and TCP acceleration were enabled for competing non-VoIP

traffic while bandwidth preservation was enabled for Avaya VoIP traffic on the Accelerators.

5.1. General Test Approach

The general test approach was to verify that the Avaya IP telephones could successfully place and

receive calls through the network infrastructure comprised of Avaya SG203 and SG208 Security

Gateway and Expand Networks Accelerators through a VPN tunnel while competing with simulated

non-VoIP low priority traffic and compression. Compression and Acceleration was implemented in

the Expand Networks Accelerator for all non-voice traffic to maximize throughput over the WAN

link.

The main objectives were to verify that:

• Calls between telephones in different sites are successfully completed and maintained with

good voice quality.

• Multiple telephones calls between sites can be completed as per the Desired Bandwidth

configured in the Accelerator.

• Non-VoIP traffic does not encroach upon the bandwidth reserved for voice applications.

• The solution supports G.711 and G.729 codecs.

• The solution supports DTMF.

• Layer-3 DiffServ information is preserved.

5.2. Test Results

The objectives in Section 5.1 were successfully verified during compliance testing. Multiple

telephone calls were successfully placed and received as per bandwidth policies defined by the

Expand Network Accelerators during varying levels of simulated competing traffic. Voice quality

was good throughout testing regardless of traffic flow.

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Avaya 4600 Series IP Telephones Nota de aplicación Pagina 17