Media Protocols

The Media Protocols menu is available after the installation process has finished and only for machine type Probe (which includes the machine type Mediation Engine with Probe).

You use the Media Protocols page to identify the RTP traffic that the Probe looks for. The Probe accepts only the traffic that matches the BPF filter.

Filters

You can set the media protocols filter as follows:

• Check all traffic for signaling: When this check box is enabled, all traffic (including the traffic that matches the BPF filter rule) is passed to the signaling probes for filtering using the signaling protocols filters. When this check box is disabled, only the traffic that does not match the BPF filter rule is passed to the signaling probes. If you use Packet Inspector for media recording, you need to enable this option to filter the media packets using the Packet Inspector filter in Signaling Protocols.

  Note:

  Packet Inspector supports STCP, TCP, and UDP as transport protocol for capturing the signaling network traffic or media. Due to the design limitation, other transport protocols such as ICMP are not supported.

  Enabling this option may decrease system performance.

• BPF filter: This filter identifies the RTP traffic. Only the traffic that matches this filter rule is considered. You might want to configure the filter rule to pick up only the packets you are interested in. Ignoring the unwanted packets reduces the stress on the system and increases performance. The traffic that does not match this filter is passed to the signaling probes for filtering using the signaling protocols filters

See the Signaling Protocols section for more information about signaling protocols.

See the Filter Syntax section for more information about filters.

Status

The following status are shown for the RTP packets:

• Active streams: Specifies the number of RTP streams found. Only the traffic that matches the filter is counted.
• Packets processed: Specifies the packets that match the filter and processed successfully.
• Packets dropped: Specifies the packets that match the filter but not processed due to insufficient resources.