An Analysis on Buffer Sizing in Routers and Investigating its Impact on Network Parameters

Neetha K. Nataraj, Dr.S. Karthik

Abstract


The need for buffering is very important for packet switching networks. Buffers in routers absorb the transient bursts that occur naturally in such networks. It reduces the frequency of packet loss and even they can avoid under-utilization when TCP connections back off due to packet drops. After several years of research with packet switching networks, it is surprising that we still do not know how to dimension the buffer of a router interface. At the same time the issue of buffer sizing has become important in practice. Recently there have been many interesting debates regarding the sizing of router buffers. From all the previous work we can say that the buffer size on the routers depends on several network parameters such as number of flows, output/input capacity ratios, speed, window size etc i.e. it is difficult to arrive at a simple formula for sizing router buffer. This article describes the impact of these networks parameters on buffer sizing in routers.


Keywords


Buffer sizing, Core routers, Internet routers, link utilization, TCP.

References


G. Appenzeller, I. Keslassy, and N. McKeown, “Sizing router buffers,” in Proc. ACM SIGCOMM, 2004, pp. 281–292.

R. Bush and D. Meyer. RFC 3439: Some internet architectural guidelines and philosophy, December 2003.

A. Dhamdhere and C. Dovrolis,”Open issues in router buffer sizing” Comput.Commun.Rev, vol.36, no.1, pp.87-92, Jan 2006.

M. Enachescu, Y. Ganjali, A. Geol, T. Roughgarden, and N. McKeown “Part III: Routers with very small buffers,” Comput.Commun.Rev,vol 35,no.3,pp.7-7,Jul.2005.

T. Kelly.On engineering a stable and scalable TCP variant Technical Report CUED/F-INFENG/TR.435.Cambridge University Engineering Department.2002.

A. lakshmikantha, C. Beck, and R. Srikanth, “Impact of File Arrivals and Departures on Buffer Sizing in Core Routers”. April 2011.

R .S .Prasad, C .Dovrolis and M. Thottan, “Router Buffer Sizing for TCP Traffic and the Role of the Output/Input Capacity Ratio”.

G. Raina, D. Towsley, and D. Wischik,.”Part II: Control theory for buffer sizing.” Comput.Commun. Rev, vol.35.no.3.pp.79-82, Jul 2005.

C. Villamiazar and C. Song,”High Performance TCP in ANSNET,”Comput. Commun. Rev. Vol 24, no.5, pp 45 -60, 1994.

D.Wischik and N.mcKeown,”Part I: Buffer sizes for core routers”. Comput.Commun. Rev.vol.35, no.3, pp.75-78, Jul 2005.


Full Text: PDF

Refbacks

  • There are currently no refbacks.




 


All Rights Reserved © 2012 IJARCSEE


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 Unported License.