Cisco Cisco Explorer Open Media Security Software 1.0 用户指南
QPSK SIL Information Diagnostic Screen
749244 Rev G
53
Field
Name
Description
Possible Values
Ovfl
The number of DMA overflows that
occurred on the channel
occurred on the channel
0
[Very low number]
Note: A higher number indicates a
problem.
Note: A higher number indicates a
problem.
Packets
The number of individual data
packets received; typically
represents a single Ethernet frame
packets received; typically
represents a single Ethernet frame
[Integer > 0]
Transmitted Packets
The Transmitted Packets section displays the QPSK reverse path data statistics for
The Transmitted Packets section displays the QPSK reverse path data statistics for
the following transmission types that are included in the diagnostic screen:
Slotted Aloha—slotted-aloha style transmission values and are typically DAVIC
command and control messages or small reservations App messages
TDMA (Time Division Multiple Access)—TDMA values that are used by a
constant bandwidth connection
Reservation—reserved slot transmissions; most applications and some DAVIC
messages are sent this way
Ranging—number of calibration transmissions between the QPSK modem and
the DHCT performed during DAVIC sign-on that achieves the RDC power level
Errors—number of transmit packets aborted with a hardware error or time out
error