172CHAPTER 5: PATHBUILDER S330 DIAGNOSTICS AND PERFORMANCE STATISTICS

Table 28 DS1/E1 UNI Module Alarms (continued)

Alarm

Meaning

Troubleshooting Steps

BAD SCCI

Status and Change Control

(3Com Patent

Indication – the content of the

Pending)

ICP cells has changed. The far

 

end ICP cell SCCI in this link

 

does not agree with the SCCI

 

of the other links in the group.

Check the links for proper connection. Reconnect if necessary.

Bad Symmetry

The far end group symmetry

 

has changed in an IMA link.

Duplicated IMA ID

An IMA group has received an

 

IMA ID that has been received

 

by a previous group. The

 

second group must have a

 

unique IMA ID.

Remove the link and stop Tx and Rx data.

Check for loops and check the IMA group configuration.

Duplicated Link ID

Duplicated far end logical link

 

ID in this IMA group for this

 

IMA link.

 

Each IMA group assigns a

 

unique Transmit link ID to each

 

link in the group. This link ID

 

should match the Receive link

 

ID of the remote end IMA

 

device. This alarm means that a

 

link received a Transmit link ID

 

already assigned to a previous

 

link.

Duplicated Offset

Duplicated far end ICP cell

 

offset in this IMA group in an

 

IMA link.

 

Each IMA group assigns a

 

unique Transmit offset to each

 

link in the group. This alarm

 

means that a link received a

 

Transmit offset already

 

assigned to a previous link.

 

Some of the links are probably

 

misconnected.

Excessive Link Delay

The link has exceeded the

 

user-selectable value for

 

acceptable link delay.

 

The link is removed from the

 

group.

Group [n] Abort

Generated when Group [n]

Symmetry

Config. Abort is generated,

 

due to group symmetry

 

problem

Check the links for proper connection. Reconnect if necessary.

Check the links for proper connection. Reconnect if necessary.

Check the links for proper connection. Reconnect if necessary. Also try adjusting the link delay parameter for the IMA group.

Check and correct near end symmetry. Only symmetric operation is supported in PathBuilder products.

Group [n] Config

The near end node rejects the

Abort

far end IMA parameters.

ATM Forum (R-128)

 

Group [n] Degraded

The IMA group is passing data

Service

with less than the number of

 

IMA links you configured.

(continued)

 

Check and correct the near end and far end parameters for compatibility.

Continue passing data. Correct faulty links or adjust IMA group configuration.

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3Com S330 manual Config. Abort is generated