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Published Articles >> Table of Contents >> Abstract
13th Symposium on High Performance Interconnects (HOTI'05)
pp. 138-143
Long Round-Trip Time Support with Shared-Memory Crosspoint Buffered Packet Switch
Ziqian Dong, New Jersey Institute of Technology
Roberto Rojas-Cessa, New Jersey Institute of Technology
Full Article Text:
 
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/CONECT.2005.26
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| Abstract |
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The amount of memory in buffered crossbars in
combined input-crosspoint buffered switches is proportional to
the number of crosspoints, or O(N²), where N is the number
of ports, and to the crosspoint buffer size, which is defined by
the distance between the line cards and the buffered crossbar,
to achieve 100% throughput under port-rate data flows. A long
distance between these two components can make a buffered
crossbar costly to implement. In this paper, we propose and
examine two shared-memory crosspoint buffered packet switches
that use small crosspoint buffers to support a long round-trip
time, which is mainly affected by the transmission delay caused
by the distance between line cards and the buffered crossbar.
The proposed switch reduces the required buffer memory of the
buffered crossbar by 50% or more. We show that a shared-memory
crosspoint buffer switch can provide high this improvement
without speedup.
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 Additional Information
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Citation:
Ziqian Dong, Roberto Rojas-Cessa,
"Long Round-Trip Time Support with Shared-Memory Crosspoint Buffered Packet Switch,"
hoti,
pp. 138-143,
13th Symposium on High Performance Interconnects (HOTI'05),
2005
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