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Link Capacity Adjustment Scheme
Link Capacity Adjustment Scheme or LCAS is a method to dynamically increase or decrease the bandwidth of virtual concatenated containers. The LCAS protocol is specified in ITU-T G.7042.
It allows on-demand increase or decrease of the bandwidth of the virtual concatenated group in a ''hitless'' manner. This brings ''bandwidth-on-demand'' capability for data clients like Ethernet when mapped into TDM containers.
LCAS is also able to temporarily remove failed members from the virtual concatenation group. A failed member will automatically cause a decrease of the bandwidth and after repair the bandwidth will increase again in a hitless fashion. Together with diverse routing this provides survivability of data traffic without requiring excess protection bandwidth allocation.
== External links ==
* (Benefits and Implementation of Link Capacity Adjustment Scheme (LCAS) in Ethernet over SONET/SDH Networking )
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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