Abstract
Out-of-sequence is a problem faced by multi-stage buffered Clos-network switches. This paper proposes two buffered three-stage Clos-network packet switches that service packets in sequence and provide high switching performance. The proposed switches require short configuration times as compared to existing bufferless or partially buffered Clos-network switches. The proposed switches use time stamps assigned at the input modules to identify the order of packets in the switch. The switches use time-stamp monitoring mechanisms either at the input modules in a switch called the MMM-IM switch, or at the output modules in a switch called the MMM-OM switch to keep packets in sequence. Synchronization among different switch modules is not required in the proposed switches. The switching performance study presented in this paper shows that in-sequence monitoring at the IM provides higher performance and larger scalability than in-sequence monitoring at the output. Furthermore, the throughput of the MMM-IM switch is comparable to that of a switch that may service packets out of sequence.
Original language | English (US) |
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Title of host publication | 2011 IEEE 12th International Conference on High Performance Switching and Routing, HPSR 2011 |
Pages | 121-125 |
Number of pages | 5 |
DOIs | |
State | Published - Sep 19 2011 |
Event | 2011 IEEE 12th International Conference on High Performance Switching and Routing, HPSR 2011 - Cartagena, Spain Duration: Jul 4 2011 → Jul 6 2011 |
Other
Other | 2011 IEEE 12th International Conference on High Performance Switching and Routing, HPSR 2011 |
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Country/Territory | Spain |
City | Cartagena |
Period | 7/4/11 → 7/6/11 |
All Science Journal Classification (ASJC) codes
- Hardware and Architecture
- Electrical and Electronic Engineering