Fluke Network Tester user manual Rtcp Real-time Transport Control Protocol, Runts, Short Frame

NetTool

Users Manual

RTCP (Real-time Transport Control Protocol)

A protocol that provides insight on the performance and behavior of the RTP media stream.

Runts

Typically defined as an Ethernet frame which is less than 64 bytes. Depending on what device is counting the runts, the frame check sequence may be good or bad.

SAP (Service Advertising Protocol)

A NetWare protocol used to request and broadcast information about file servers, print servers, and other services on a network.

Short Frame

A frame less than the minimum legal size (less than 64 bytes) with a good frame check sequence. In general, you should not see Short Frames. The mostly likely cause of a Short Frame is a faulty adapter card or driver.

Signal/Noise Ratio

The ratio of worst-case received signal level to noise level measured at the receiver input (expressed in dB). The S/N ratio may be expressed as NEXT(dB) - Attenuation(dB), provided idle channel background noise is low. Higher S/N ratios provide better channel performance.

SCCP (Skinny Client Control Protocol)

A Cisco proprietary VoIP control protocol that is used for control communications with the Cisco Call Manager.

SIP (Session Initiation Protocol)

A text-based, IP-based protocol that is used for initiating a unicast session or for initiating and controlling a multicast session.

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