PRI Statistics
DS1 State
Signaling errors
Can be one of the following:
- LOS, which means loss of signal.
- LFA, which means loss of frame alignment.
- AIS, which means all ones
- RFA, which means remote facility alignment.
Alarms
Can be one of the following:
- None, which means there are no alarms.
- Yellow alarm, which typically means that the telephone company is testing the line.
If this condition persists, however, this may indicate that long haul/short
haul parameters in your driver configuration are incorrect.
- Blue alarm, which means that the telephone company is testing the line.
- Red alarm, which indicates an out-of-frame condition or loss-of-signal condition.
Loopback mode
Is one of the following:
- None, which means loopback testing is not being done.
- Local, which means that an adapter-level loopback test is underway.
- Line, which means that a loopback test between the switch and the adapter is
underway.
- Payload, which means that a line loopback test involving just the payload of a
particular channel is underway.
Note: Users cannot initiate a loopback test. Loopback tests must be initiated
by the switch.
DS1 Errors
Line code violations
Is the number of line code violations that have occurred since initialization
or since statistics were updated.
CRC errors
Is the number of CRC errors that have occurred since initialization or since
statistics were updated.
Channel Status
Modem
Selects and identifies the modem to which statistics apply.
Connect time
Is the number of seconds that the connection has been alive.
Last disconnect
Is the reason for the last disconnection.
Modulation
Is the modulation method used by this modem.
Compression
Is the compression method used by this modem.
Error correction
Is the error correction method used by this modem.
Transmit throughput
Is the transmit data throughput measured in bytes-per-second. This will be
zero if no data is being transmitted.
Receive throughput
Is the receive data throughput measured in bytes-per-second. This will be zero
if no data is being received.
Initial transmit rate
Is the transmit data rate negotiated by the modems when they first connect.
Initial receive rate
Is the receive data rate negotiated by the modems when they first connect.
Current transmit rate
Is the current transmit data rate negotiated by the modems. (Line noise may
cause modems to renegotiate.)
Current receive rate
Is the current receive data rate negotiated by the modems. (Line noise may
cause modems to renegotiate.)