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Cell Relay Retreat>List Archive>month:1998-Apr> msg00277



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Re: QoS versus CoS

  • From: Mike Vogeleer <mike.vogeleer@intec.rug.ac.be>
  • Date: Tue, 28 Apr 1998 09:40:47 +0200

Thanks for your clarifying answer! Allow me to bother you once more. If I
understand it correctly, CoS provides a long-term guarantee in the sense
that: "if the service provider has correctly dimensioned the network, the
user knows sufficient resources will be available during the next couple of
months". Whereas QoS provides a short-term guarantee: "if the reservation
succeeds, sufficient resources will be available for the duration of the
session".

So CoS ultimately depends on network dimensioning & planning? If the
service provider overallocates resources, no CoS. It seems to me this
involves some serious network planning & dimensioning problems, right?



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	Mike Vogeleer

	University Of Ghent
	Department of Information Technology (INTEC)
	Broadband Communication Networks Group (IBCN)
	Sint-Pietersnieuwstraat 41
	B-9000 Gent, Belgium

	E-mail:	Mike.Vogeleer@intec.rug.ac.be
	Phone:		+32 9 264 34 46
	Fax:		+32 9 264 35 93
	WWW: 		http://studwww.rug.ac.be/~mvogel

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