VC-12 Virtual concatenated loss of total capacity
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Alarm identifier
VC12VcLOTC
Information Total transmission bandwidth lost because all members of the Virtual
Concatenation Group (VCG) have failed.
This alarm will only be reported when LCAS is enabled.
Alarm category Transmission
ASAP sdhVCG
Alarm severity
(default setting)
Prompt
Reporting state
(default setting)
Reported
Local indications –
Cause All members of the VCG have failed.
Actions If there are higher order alarms (such as Loss of signal or Loss of frame for
example) at the same time, then clear these alarms first.
Make sure that the same mapping scheme (GFP or LAP-S encapsulation for
example) is applied at both ends of the connection.
Otherwise, repair the individual members (VC-12s) of the VCG.
Note(s) Generally it is recommended to have LCAS enabled, and apply “diverse
routing” i.e. to route the members of the VCG via physically diverse routes.
Alarm messages
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365-312-803R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
1-247
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