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Link Capacity Adjustment Scheme

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Title: Link Capacity Adjustment Scheme  
Author: World Heritage Encyclopedia
Language: English
Subject: Synchronous optical networking, Generic Framing Procedure, G.fast, G.723
Collection: Itu-T Recommendations, Multiplexing, Synchronous Optical Networking
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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]
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