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NG SDH Forum Forum about current activities in Next Generation SDH (NG SDH / NG SONET)
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The time now is Fri Jul 03, 2009 4:09 am |
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| Forum | Topics | Posts | Last Post | |
|---|---|---|---|---|
| New Trends and Standards | ||||
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Upcomming Standards Currently discussed changes / ammendments to existing standard documents OR suggestions for future developments in the SDH/SONET family |
268 | 272 | Sun May 24, 2009 9:41 pm |
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Trends in Line Speed and Media News about speed increments (including allowed media, allowed distances etc.) |
1 | 1 | Thu May 11, 2006 12:17 am knoll |
| SDH/SONET Concatenation Strategies | ||||
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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. |
0 | 0 | No Posts |
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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. |
0 | 0 | No Posts |
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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. |
0 | 0 | No Posts |
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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). |
1 | 1 | Wed May 10, 2006 5:11 pm knoll |
| PDH / SONET / SDH Basics | ||||
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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 |
3 | 3 | Thu May 21, 2009 11:19 am |
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PDH Basics Forum on basic details for Plesiochronous Digital Hierarchy (PDH) networks. (bit stuffing etc.) |
2 | 2 | Fri May 22, 2009 6:17 am |
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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.) |
0 | 0 | No Posts |
| NG-SDH Chips and Devices | ||||
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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. |
1 | 1 | Wed May 20, 2009 5:17 pm |
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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. |
1 | 1 | Tue May 26, 2009 5:13 am |
| WDM, CWDM, DWDM - Wavelength Division Multiplexing | ||||
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WDM - Wavelength Division Multiplex systems |
1 | 1 | Sat Oct 14, 2006 5:13 pm voeraylau |
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CWDM - Coarse Wavelength Division Multiplex systems |
2 | 3 | Wed Apr 01, 2009 8:53 am |
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DWDM - Dense Wavelength Division Multiplex systems |
1 | 2 | Thu Jun 28, 2007 9:18 am qpapnik |
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Traffic Grooming - trafic arrangement / rearrangement for better network utilization Traffic Grooming refers to the efficient (bandwith usage, ADM costs etc.) arrangement of sub-wavelength traffic junks into a smaller number of fully loaded wavelength channels. |
1 | 1 | Mon Jun 19, 2006 3:49 pm knoll |
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