Cost sensitive pushout policy for the buffer management in versatile traffic switch

Kumar Padmanabh, Rajarshi Roy

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We are presenting here a buffer management policy for versatile traffic. In the case of ATM switch, we have to drop only one packet of low priority to accommodate a packet of high priority, because all packets (cells) are of same size. Thus if we have to improve QoS of high priority packets we can give the worse treatment to low priority packets. This is a procedure to increase total weighted throughput. But in the case of Differentiated Service model where versatility in data traffic is there due to packets of multiple priorities and different lengths, we may have to drop more than one packet of low priority to accommodate a high priority packet. But one interesting question remains, how many packets of low priority should be dropped to save a single high priority packet? In this paper we have demonstrated that merely treating low priority up to worst extent to improve QoS of high priority doesn't improve the total weighted throughput in DiffServ. model. A line must be drawn beyond which worse treatment to low priority packet must be stopped when the goal is to minimize the probability of loss of total weighted cost. We are presenting here the Cost Sensitive Pushout Policy, which gives a class of buffer management policy to maximize total weighted throughput.

Original languageBritish English
Title of host publicationProceedings of INDICON 2005
Subtitle of host publicationAn International Conference of IEEE India Council
Pages404-407
Number of pages4
DOIs
StatePublished - 2005
EventINDICON 2005: An International Conference of IEEE India Council - Chennai, India
Duration: 11 Dec 200513 Dec 2005

Publication series

NameProceedings of INDICON 2005: An International Conference of IEEE India Council
Volume2005

Conference

ConferenceINDICON 2005: An International Conference of IEEE India Council
Country/TerritoryIndia
CityChennai
Period11/12/0513/12/05

Keywords

  • Buffer management
  • Congestion control
  • Differentiated service
  • Quality of service

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