J4

• Original Articles • Previous Articles     Next Articles

A new Clos fabric with input memory and the study of its routing and scheduling algorithm

YANG Fan1;QIU Zhi-liang1;LIU Zeng-ji1;LIU Gu-qing2;YAN Jing1
  

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi′an 710071, China;2. Xi′an Communication Institute, Xi′an 710106, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-20 Published:2007-02-25

Abstract:

A new Clos switching structure termed MmM is proposed. All the switching elements in the MmM use input memory. So MmM is adaptive to high speed switching fabrics. In MmM the middle stage provides the routing message for the first stage. The distributed routing and scheduling algorithm named Clos load balance routing(CLBR) for the MmM is proposed. CLBR can balance the traffic load and decease the collisions of output ports. Simulation results show that the MmM with CLBR performs better than the MSM with CRRD.

Key words: Clos fabric, load balance, routing, scheduling algorithm, packet switching

CLC Number: 

  • TP391.3