EXFO FTB-8510B Guia Del Usuario página 1332

Glossary
Next-Gen - Link-Capacity Adjustment Scheme (LCAS)
Member Permanent Removal
Note: The removal of a member must be done at the source in order for the
operation to be hitless. If it is done at the sink first, the traffic will be
corrupted from the time the member is removed (sink generates
MST = FAIL) and the sink receives a DNU generated from the source.
682
The bandwidth of a VCG can be permanently reduced using the
LCAS' ability to enable in-service removal of one or more
member(s) from the VCG. This bandwidth reduction is controlled
by the user via a network management system. The steps detailed
in figure below are used to perform this reduction of bandwidth.
Bandwidth Reduction (Permanent Removal)
Step 1: One or more member(s) need to be removed from an
existing VCG. In this example, again we are using STS-1 [3,2], AU-3
[3,2].
This operation must be initiated from a management system.
FTB-8100 Series Transport Blazer