LANforge VoIP

LANforge FIRE - Voice over IP (VoIP) Call Generator

LANforge FIRE VoIP Call Generator supports MAC-VLAN virtual interfaces when used with the Candela Linux kernel. To the system under test, it appears as if there are multiple devices sitting inside a single LANforge system generating independent traffic streams.

Lanforge can also send traffic from one physical interface on the local machine to another interface on the same machine. Each physical and virtual interface can be configured for the same, or different subnets.

In the configuration below, the LANforge Fire Core can be one physical interface and act as the server. The LANforge FIRE Edge can be a sercond physical interface with multiple virtual interfaces configured. Both interfaces can be on the same machine.

It is also valid to use multiple LANforge machines on the edge and core for increased traffic generation capacity or to resolve constraints imposed by the layout of the network.

LANforge Fire can be purchased as software or an appliance in a standard or custom configurations.

LANforge Fire - Network Traffic and Voip Call Generator

Excellent for testing whether or not an existing infrastructure can handle VoIP call loads or increased VoIP call loads. The LANforge FIRE VoIP Call Generator can also be used to test SIP gateways and other infrastructure.

When using the MAC-VLAN feature in the Candela Linux kernel a virtual interface can be created for each phone, so each phone can use a unique IP address and use standard SIP protocol ports.

Also includes standard LANforge FIRE traffic generation features (Ethernet, UDP, TCP, HTTP, etc).

LANforge Fire provides a test solution to generate traffic to validate that the devices will be able to perform when making configuration changes, adding users or applications.

• Validates stability and data throughput on devices under evaluation.
• Useful for testing any network - Ethernet, Wireless and VoIP
• Turn key solution. The LANforge systems can come pre-installed and configured to customer requirements.
• Modular architecture allows you to leverage existing LANforge investment as your need for capacity increases.
• Ease of use - Manage entire LANforge installation through one interface, from anywhere on the network.

LANforge VoIP/RTP Call Generator Feature Highlights

• SIP and/or H.323 protocol used for call management.
  • SIP and H.323 are now supported on both Windows and Linux.
  • SIP/UDP supported, H.323 uses both UDP and TCP.
  • Can use directed mode, where VoIP phones call directly to themselves.
  • Can also use Gateway mode where the VoIP phones register with a SIP or H.323 gateway.
  • SIP authentication is supported.
• RTP protocol used for streaming media transport, and supports the following CODECS. More codecs may be supported in the future.
  • G.711u: 64kbps data stream, 50 packets per second (SIP, H.323)
  • G.729a: 8kbps data stream, 50 packets per second (SIP ONLY)
  • Speex: 16kbps data stream, 50 packets per second (SIP on Linux ONLY)
  • G.726-16: 16kbps data stream, 50 packets per second (SIP ONLY)
  • G.726-24: 24kbps data stream, 50 packets per second (SIP ONLY)
  • G.726-32: 32kbps data stream, 50 packets per second (SIP ONLY)
  • G.726-40: 40kbps data stream, 50 packets per second (SIP ONLY)
  • NONE: A messaging-only configuration is now supported (SIP ONLY)
• Supports PESQ automated voice quality testing.
• RTCP protocol used for streaming media statistics (SIP only)
• Each LANforge VoIP/RTP endpoint can play from a wav file and record to a separate wav file. Almost any sound file can be converted to the correct wav file format with tools bundled with LANforge. Sample voice files are included.
• Current benchmarks show support for 140 or more emulated VoIP phones per machine.
• LANforge VoIP/RTP endpoints can call other LANforge endpoints or third party SIP or H.323 phones like Cisco and Grandstream. Third party phones can also call LANforge endpoints and hear the WAV file being played.

Frequently Asked Questions

Can LANforge Fire be purchased as software?
Yes, or it can also be purchased as an appliance.

What type of hardware and operating system is required by LANforge Fire?
LANforge Ice uses Industry standard PC hardware and can run on Windows and Linux.

Is the functionality different if I choose Linux over Windows?
Yes, Linux supports the MAC-VLAN feature where a virtual interface can be created for each phone, so each phone can use a unique IP address and use standard SIP protocol ports.

Can LANforge call other devices?
LANforge VoIP/RTP endpoints can call other LANforge endpoints or third party SIP or H.323 phones like Cisco and Grandstream. Third party phones can also call LANforge endpoints and hear the WAV file being played.

Does LANforge Fire support testing for TOS or QOS?
Yes.

Can you test for call quality?
Yes. LANforge Supports PESQ automated voice quality testing. Also, ask your Operative Sales Representive for affordable Network Analyzer solutions. See Expert Observer

How is LANforged Fire Licensed?
LANforge is licensed by ports of traffic generation and other features such as Virtual Interfaces, Armageddon and VoIP.

What is a typical configuration for LANforge Fire?
LANforge can be configured on a single appliance to both send and receive traffic which can be appropriate for Lab environments. It also can be installed locally and remote for Wide Area link testing. LANforge is very customizable and can be configured to customers requirements.