Loop Telecom Loop-IP6702A TDMoEthernet, Руководство пользователя, Страница: 105 / 107

Loop Telecommunication International, Inc.
96
9.
APPENDIX B – MIB ALARM
AND TRAP DESCRIPTIONS
9.1. MIB Alarm Descriptions
Card Type Alarm Type One-Shot Alarm Name Alarm Cause Severity
E1 RAI Remote Alarm
Indication The received data sequence
shows that the downstream far
end device is in red alarm. major
AIS Alarm Indication
Signal A transmitted signal to indicate
that a fault has happened
upstream in the transmission
path (remote line failure or
card failure). major
LOS Loss of Signal The physical line is broken, not
connected, or the remote
device has no power. major
LOF Loss of Frame The expected frame format of
the incoming signal cannot be
found. major
BPV Yes Bipolar Violation The line condition/quality is
causing bipolar errors during
transmission. major
ES Yes Error Second An error is detected within any
one second. major
UAS Yes Unavailable Second The E1/T1 line is broken or
bad line condition, resulting in
seconds with no data. major
CSS Yes Control Slip Second Within any one second, the
difference between received
clock and local is different
enough to cause slip of whole
frame. major
CLK Change Yes Clock change Clock has changed. major
L-Bit Bundle Local-Bit When received, it means that
the E1/T1 connection on the
remote device is broken. major
R-Bit Bunlde Remote-Bit When received, it means that
part of the Ethernet network
between the local and remote
device is broken. major
MAC Change Yes MAC change Remote bundle source MAC major