Media Gateway Control Protocol (MGCP) Technol…
2008-02-22 12:37:37来源：互联网 阅读 ()
IxVoice Solution
MGCP bulk test library is included in the Ixia's IxVoice framework being designed to simulate the Media Gateways functionality and test the Media Gateway Controllers. This module contains functions that implement the MGCP v0.1 as described in RFC 3435.
The endpoints simulated by the MGCP module are registered at startup time, and the internal state-machine treats and responds to Caller Agent requests during the test execution.
On a MGCP connection established using the test library functions, media streaming can be generated/ received using the functions from the RTP Module.
Key features
- Fully automates the MGCP functionality testing.
- Simulates multiple Call Agents and Media Gateways.
- Generates and receives MGCP messages.
- Predefined test scenarios.
Test types
The most important testing issues that can be performed using IxVoice:
- Conformance & Functionality testing - conformance to the standards, determine if the events detected at the Media Gateway are correctly passed to the call agent.
- Interoperability - compatibility with the existing implementations.
- Load testing (BHCC) - because MG must support high density calls.
- Quality of Voice (QoV) - for the media streaming generated using RTP.
- System integration testing - because MG must be integrated in the existing infrastructure.
As devices that support the converged carrier networks, Media Gateways are designed to support higher densities. These densities are measured as either digital signal per rack, per square foot, or per dollar.
Devices under test
- Media Gateway.
- Media Gateway Controller (Call Agent).
Applications
Figure 3. Basic network architecture.
References
Glossary
- ATM - Asynchronous Transfer Mode
A high-speed network technology that is designed for LANs, WANs, carrier and service provider networks, and Internet core networks. It is a connection-oriented switching technology, as opposed to a connectionless technology such as IP.
- Codec
Voice encoding/decoding mechanism. Codecs are used to compress the voice signal into data packets. Each codec has different bandwidth requirements.
- DSL
Digital Subscriber Line - a digital technology for transporting faster bit streams over the ordinary copper telephone lines.
- Endpoint
An H.323 terminal, gateway or Multipoint Controller Unit (MCU). An endpoint can call and be called and it can generate or end information streams.
- G6 - Generation 6
IBM's sixth generation of 9672 mainframe models, introduced in May, 1999.
- HTTP - Hypertext Transfer Protocol
The client/server application-level protocol specifically designed to support hypermedia information systems. Web browsers use HTTP to connect with Web servers and access information on those servers. The protocol sets up a connection between Web browser and Web server, and then manages the exchange of information.
- IAD - Integrated Access Device
A device through which both data and voice can be accessed over a DSL network.
- IP - Internet Protocol
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