Carrier Access 1750 Table 7-16: Unstructured E3-3 SAM Network Alarms Network Alarm Definition

Broadmore 1750 - Release 4.6 7-61
Configuration
Unstructured E3-3 SAM
Table 7-16: Unstructured E3-3 SAM Network Alarms
Network Alarm Definition
Cell Starvation Cell Starvation indicat es the re are no cells being received from the network side.
LOF Loss Of Framing indicate s tha t the fr am ing alignment of the signal coming
into the Broadmore 1750 from the ATM side has been lost.
AIS This alarm indicates an Alarm Indication Signal is being received from the
network side. When a network element receives a loss of signal, it is
supposed to propagate an AIS alarm on its output. If this alarm is active, then
an AIS alarm is being propagated to it. An AIS alarm is a validly framed E3
signal consisting of a repeated 1010 data pattern.
Idle An idle alarm means that an idle signal (validly framed E3 signal with a
repeated 1100 signal) is being detected on the network side.
RAI The Remote Alarm Indicator (also known as a Yellow Alarm) is transmitted
by setting the X bits to zero. This particular alarm indica te s that a Yellow
alarm has been sent across the ATM network and is being received by this
E3 port. In the E3 port configuration screen, you can select the Network
and Service side RAI as Auto, 1, or 0. Selecting “0” will cause the network
RAI alarm to be activated, if the user has not selected to Ignore it.
FEAC Far End Alarm and Control Channel.
Sequence Errors This alarm indicates that fram es are out of sequence as they arrive at the E3
port.
Excessive SNP Errors SNP Errors are errors that occur in the Sequence Number Parity portion of the
E3 frame
Excessive F-bit Errors The Excessive F-bit Errors ala rm is triggered when the E3 port receives
F-bit errors at a rate of 1 x 10-4
Excessive Parity Errors The Excessive Parity Errors alarm will be triggered when the E3 port
receives parity errors at a rate of 1 x 10-4
Excessive C-bit Errors The Excessive C-bit Errors alarm will be triggered when the E3 port
receives C-bit errors at a rate of 1 x 10-4
Excessive FEBE Errors The Excessive FEBE (Far End Block Error) alarm is triggered when the E3
port receives FEBEs at a rate of 1 x 10-4