Fluke Network Tester - Manual (Page 96)

NetTool
Users Manual
C-10
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.
SCCP (Skinny Client Control Protocol)
A Cisco proprietary VoIP control protocol that is used for
control communications with the Cisco Call Manager.
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.
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.