Voice Compression Module Vc Statistics; Voice Compression Module Port Activity Statistics; Viewing Virtual Circuit Statistics - 3Com SuperStack II PathBuilder S330 Reference Manual

200 C 5: P B
HAPTER ATH UILDER
Viewing Virtual Circuit
Statistics
S330 D P
IAGNOSTICS AND ERFORMANCE
BES—The number of bursty errored seconds (BESs) encountered by the VCM
T1-DSX/E1 interface.
DM—The number of degraded minutes (DMs) encountered by the VCM
T1-DSX/E1 interface.
LCV—The number of line coding violations (LCVs) encountered by the VCM
T1-DSX/E1 interface.

Voice Compression Module VC Statistics

Voice compression module VC statistics are frame and byte counts since the last
counter reset. On the VCM VC Statistics window, you can reset the counter by
entering c. VC statistics are displayed as a list rather than a table. The VCM
T1-DSX and VCM E1 VC Statistics screens display the following statistics:
Received Frames—Total number of frames received over the virtual circuit.
Transmitted Frames—Total number of frames transmitted over the virtual circuit.
AAL5 Errors—The total number of invalid frames received over the virtual circuit.
Invalid frames are frames that are received with good FCS but that cannot be
processed due to wrong content.
Discarded Congested Frames—The total number of frames received over the
virtual circuit that were discarded due to congestion. Congested frames are frames
that were not transmitted due to link congestion.

Voice Compression Module Port Activity Statistics

The VCM Port Activity Statistics screen displays the following statistics for each
channel.
ch—Channel number.
tx packets—Number of transmitted packets.
rx packets—Number of received packets.
tx bytes—Number of transmitted bytes.
rx bytes—Number of received bytes.
The PathBuilder S330/S310 provides you with circuit parameters and cell counts
broken down in various ways:
by circuit
n
by port/group
n
by shaper
n
by buffer (queue)
n
These statistics enable you to look at the cell loss at various points in the data flow
and adjust parameters—such as shaper values—accordingly.
S
TATISTICS