9. Interoperability Compliance Testing
Interoperability compliance testing covered feature functionality, serviceability, and performance testing.
Feature functionality testing focused on the QoS and VLAN implementation in the Avaya/ProCurve configuration. Specifically, compliance testing verified that when the ProCurve Switch interfaces are over subscribed with low priority data traffic, the higher priority VoIP media and signaling traffic still got through and achieved good voice quality. Prioritization of voice traffic was achieved by implementing Layer 3
QoS and performance testing was verified by making voice calls while a traffic generator generated low priority data traffic to simulate a converged network. At the end of the performance test, it was verified that the network devices continued to operate successfully.
Serviceability testing was conducted to verify the ability of the Avaya/ProCurve VoIP solution to recover from adverse conditions, such as power cycling network devices and disconnecting cables between the LAN interfaces. In all cases, the ability to recover after the network normalized was verified.
9.1. General Test Approach
All feature functionality test cases were performed manually. The general test approach entailed verifying the following:
LAN connectivity between the Avaya and ProCurve products.
Registration of Avaya H.323 IP Telephones with Avaya Communication Manager.
Registration of Avaya SIP IP Telephones with Avaya SIP Enablement Services.
Verification of the DHCP relay configuration.
VoIP calls over Layer 2 and Layer 3 connections.
Verifying that QoS directed the voice signaling and voice media to the higher priority egress queue based on the packets’ DSCP value.
Verifying that Avaya Modular Messaging & Avaya IA770 INTUITY AUDIX voicemail and MWI works properly.
The performance tests were performed by over subscribing the lines with low priority data and verifying that VoIP traffic was prioritized and that good voice quality was achieved when calls were routed over all of the LAN interfaces.
TMA; Reviewed: | Solution & Interoperability Test Lab Application Notes | 18 of 21 |
SPOC 7/21/2008 | ©2008 Avaya Inc. All Rights Reserved. |