Link Capacity Adjustment Scheme or LCAS is a method to dynamically increase or decrease the bandwidth of virtual concatenated containers.
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.
Together with diverse routing this provides survivability of data traffic without requiring excess protection bandwidth allocation.