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%SPI4.2 offers advantages in channalization, contains programmable burst sizes and per-channel backpressure. Unfortunately the high width of the interface and the source-synchronous features of the protocol reduce the effective reach.
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%SPI4.2 offers advantages in channalization, contains programmable burst sizes and per-channel backpressure. Unfortunately the high width of the interface and the source-synchronous features of the protocol reduce the effective reach.
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\subsection{Conclusion}
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\subsection{Conclusion}
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This section will conclude which of the earlier described protocols is more suitable and whether or not it meets the requirements. Table~\ref{Tab:Survey_Stardard_Overview} provides a quick overview of their specifications. In case a yes is noted, this means support is available but the exact specifications have not been described clear enough. When there is a '-' noted, there is no support or documentation has not been clear enough to provide the required information.
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This section will conclude which of the earlier described protocols is more suitable and whether or not it meets the requirements. Table~\ref{Tab:Survey_Stardard_Overview} provides a quick overview of their specifications. In case a yes is noted, this means support is available but the exact specifications have not been described clear enough. When there is a '-' noted, there is no support or documentation has not been clear enough to provide the required information.
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All mentioned protocols and links to their documentation can be found in Appendix \ref{Appendix:Protocol_links}.
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\taburowcolors[2] 2{tableLineOne .. tableLineTwo}
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\taburowcolors[2] 2{tableLineOne .. tableLineTwo}
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\tabulinesep = ^2mm_1mm
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\everyrow{\tabucline[.3mm white]{}}
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\everyrow{\tabucline[.3mm white]{}}
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\begin{table}[h]
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\begin{table}[H]
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%\begin{center}
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%\begin{center}
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\begin{tabu} to \textwidth {>{\bfseries}l l l l l}
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\begin{tabu} to \textwidth {>{\bfseries}l l l l l}
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\tableHeaderStyle
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\tableHeaderStyle
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& Interlaken & SATA & CPRI & Fibre channel \\
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& Interlaken & SATA & CPRI & Fibre channel \\
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Lane rate & 25,3 Gbps & 6 Gbps & 24,33 Gbps & 12,8 Gbps \\
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Lane rate & 25,3 Gbps & 6 Gbps & 24,33 Gbps & 12,8 Gbps \\
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\caption{Overview of the most suited protocols.}
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\caption{Overview of the most suited protocols.}
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\label{Tab:Survey_Stardard_Overview}
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\label{Tab:Survey_Stardard_Overview}
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%\end{center}
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%\end{center}
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\end{table}
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\end{table}
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SATA is an interesting protocol but the line rate is not sufficient. HyperTransport is great for huge bandwidths but implements a parallel bus while serial transmission is required in this case. Fibre channel looks like an interesting alternative. Unfortunately the lack of documentation and not being open will bring a lot of risks with it.
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SATA is an interesting protocol but the line rate is insufficient. HyperTransport is great for huge bandwidths but implements a parallel bus while serial transmission is required in this case. Fibre channel looks like an interesting alternative. Unfortunately the lack of documentation and not being open will bring a lot of risks with it.
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CPRI is another very interesting option offering a high line rate and a good way of encoding. Unfortunately the unclear documentation on CRC and flow control plus the lack of channel bonding cause this option to be a less suited option. Nevertheless a protocol to keep in mind.
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CPRI is another very interesting option offering a high line rate and a good way of encoding. Unfortunately the unclear documentation on CRC and flow control plus the lack of channel bonding cause this option to be a less suited option. Nevertheless a protocol to keep in mind.
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The Interlaken Protocol looks like the best solution. While having excellent documentation, the protocol also meets all the requirements. This even includes the optional/ nice to have specifications.
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The Interlaken Protocol comes out best. While having excellent documentation, the protocol also meets all the requirements. Even the optional/ nice to have specifications. Interlaken is open to use and is even promoted to use by Cortina Systems and Cisco Systems.
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The protocol is open to use and is even promoted to use by Cortina Systems and Cisco Systems.
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\newpage
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\newpage
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