Configuration

 

Unstructured E3-3 SAM

 

 

Table 7-16: Unstructured E3-3 SAM Network Alarms

 

 

Network Alarm

Definition

 

 

Cell Starvation

Cell Starvation indicates there are no cells being received from the network side.

 

 

LOF

Loss Of Framing indicates that the framing 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 indicates 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 frames 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 alarm 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

 

 

Broadmore 1750 - Release 4.6

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Carrier Access 1750 user manual Unstructured E3-3 SAM Network Alarms