It is currently Wed Mar 17, 2010 7:11 am
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Upcomming Standards
Currently discussed changes / ammendments to existing standard documents OR suggestions for future developments in the SDH/SONET family
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Trends in Line Speed and Media
News about speed increments (including allowed media, allowed distances etc.)
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Last post by knoll
Thu May 11, 2006 12:17 am
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Contiguous concatenation (CCAT)
Contiguous concatenation (CCAT) is a mechanism, which allows container concatenation by means of invers multiplex of STS / VC containers.
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Last post by Guest
Sun Oct 08, 2006 1:07 am
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Virtual Concatenation (VCAT)
Virtual Concatenation (VCAT) is a mechanism, which allows virtual container concatenation of arbitrary size by means of X.86 or Generic Framing Procedure (GFP) protocols in order to map payloads of arbitrary bandwidth into the virtually concatenated container.
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Link Capacity Adjustment Scheme (LCAS)
Link Capacity Adjustment Scheme (LCAS) is a dynamic concatenation scheme for virtually concatenated containers. Its dynamic character allows for adjustment to short-term bandwidth needs of network.
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Generic Framing Procedure (GFP)
Generic Framing Procedure (GFP) is the upcomming protocol for asyncronous data packet transport over any media (including dark fibre).
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Last post by knoll
Wed May 10, 2006 5:11 pm
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G.711 / PCM Basics
Traditional uncompressed voice coding is standardized in G.711 (Pulse-Code Modulation - PCM). This forum discusses such PCm-related issues
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Last post by knoll
Tue Jun 13, 2006 11:49 am
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PDH Basics
Forum on basic details for Plesiochronous Digital Hierarchy (PDH) networks. (bit stuffing etc.)
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Last post by knoll
Tue Jun 27, 2006 7:49 pm
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SONET / SDH Basics
Forum on basic details for Synchronous optical networks (SONET) and Synchronous Digital Hierarchy (SDH) networks. (byte-aligned multiplex, pointer technique etc.)
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Last post by fixcomm
Tue Jul 14, 2009 8:28 am
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Chips for Next Generation SDH / SONET
SDH concatenation mechanisms (such as VCAT, GFP and LCAS) calls for new chips and chipsets supporting VC mapping etc.
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Network equipment for Next Generation SDH / SONET
Network equipment (Transport Equipment, Digital Cross-Connects, Digital Loop Carriers, and Associated Modules) supporting Next Generation SDH / SONET functionality such as VCAT, GFP etc.
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