Towards more practical LCAS for VCAT in MSTP ASIC

Peng Wang; Jishi Li; Depeng Jin; Lieguang Zeng

doi:10.1117/12.631519

Towards more practical LCAS for VCAT in MSTP ASIC

Peng Wang, Jishi Li, Depeng Jin, Lieguang Zeng

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

Link Capacity Adjustment Scheme (LCAS) is a protocol to provide hitless bandwidth adjustment of virtual concatenated (VCAT) signal under the control of network management system (NMS). It has much larger flexibility to dynamically assign resources and becomes an important feature for multi-service transport platform (MSTP) systems. However, the scheme is a two-way handshake signalling with status messages exchanged continuously, which can hardly be implemented within a single chip. Aiming at an easier implementation in ASIC, we revise the LCAS protocol to have a shorter handshaking procedure by adding MST bits in the reserved K4 bits and remove the complex mappings between TU12s and theirs SQs. Simulation results show that the revised LCAS shortens the period of handshaking procedure and synthesis results show that the size of logic is greatly reduced. We believe the new scheme will be accepted and applied in future.

Original language	English
Article number	60223J
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6022 II
DOIs	https://doi.org/10.1117/12.631519
State	Published - 2005
Externally published	Yes
Event	Network Architectures, Management, and Applications III - Shanghai, China Duration: 7 Nov 2005 → 10 Nov 2005

Keywords

ASIC
LCAS
MSTP
VCAT

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10.1117/12.631519

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title = "Towards more practical LCAS for VCAT in MSTP ASIC",

abstract = "Link Capacity Adjustment Scheme (LCAS) is a protocol to provide hitless bandwidth adjustment of virtual concatenated (VCAT) signal under the control of network management system (NMS). It has much larger flexibility to dynamically assign resources and becomes an important feature for multi-service transport platform (MSTP) systems. However, the scheme is a two-way handshake signalling with status messages exchanged continuously, which can hardly be implemented within a single chip. Aiming at an easier implementation in ASIC, we revise the LCAS protocol to have a shorter handshaking procedure by adding MST bits in the reserved K4 bits and remove the complex mappings between TU12s and theirs SQs. Simulation results show that the revised LCAS shortens the period of handshaking procedure and synthesis results show that the size of logic is greatly reduced. We believe the new scheme will be accepted and applied in future.",

keywords = "ASIC, LCAS, MSTP, VCAT",

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TY - JOUR

T1 - Towards more practical LCAS for VCAT in MSTP ASIC

AU - Wang, Peng

AU - Li, Jishi

AU - Jin, Depeng

AU - Zeng, Lieguang

PY - 2005

Y1 - 2005

N2 - Link Capacity Adjustment Scheme (LCAS) is a protocol to provide hitless bandwidth adjustment of virtual concatenated (VCAT) signal under the control of network management system (NMS). It has much larger flexibility to dynamically assign resources and becomes an important feature for multi-service transport platform (MSTP) systems. However, the scheme is a two-way handshake signalling with status messages exchanged continuously, which can hardly be implemented within a single chip. Aiming at an easier implementation in ASIC, we revise the LCAS protocol to have a shorter handshaking procedure by adding MST bits in the reserved K4 bits and remove the complex mappings between TU12s and theirs SQs. Simulation results show that the revised LCAS shortens the period of handshaking procedure and synthesis results show that the size of logic is greatly reduced. We believe the new scheme will be accepted and applied in future.

AB - Link Capacity Adjustment Scheme (LCAS) is a protocol to provide hitless bandwidth adjustment of virtual concatenated (VCAT) signal under the control of network management system (NMS). It has much larger flexibility to dynamically assign resources and becomes an important feature for multi-service transport platform (MSTP) systems. However, the scheme is a two-way handshake signalling with status messages exchanged continuously, which can hardly be implemented within a single chip. Aiming at an easier implementation in ASIC, we revise the LCAS protocol to have a shorter handshaking procedure by adding MST bits in the reserved K4 bits and remove the complex mappings between TU12s and theirs SQs. Simulation results show that the revised LCAS shortens the period of handshaking procedure and synthesis results show that the size of logic is greatly reduced. We believe the new scheme will be accepted and applied in future.

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JO - Proceedings of SPIE - The International Society for Optical Engineering

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T2 - Network Architectures, Management, and Applications III

Y2 - 7 November 2005 through 10 November 2005

ER -

Towards more practical LCAS for VCAT in MSTP ASIC

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Keywords

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