nanog mailing list archives
Re: The Qos PipeDream [Was: RE: Two Tiered Internet]
From: Joe Maimon <jmaimon () ttec com>
Date: Sun, 18 Dec 2005 14:28:31 -0500
Chris Woodfield wrote:
One thing to note here is that while VoIP flows are low volume on a bits-per-second basis, they push substantially more packets per kilobit than other traffic types - as much as 50pps per 82Kbps flow. And I have seen cases of older line cards approaching their pps limits when handling large numbers of VoIP flows even though there's plenty of throughput headroom. That's not something LLQ or priority queueing are going to be able to help you mitigate at all.-C
In that vein, and not quite on this topic, it would be real nice if voip applications made an effort to stop abusing networks with unneccessarily large pps.
Something about intelligent edges? The payload length of voip applications often has a lot to do with rtt. Adapting payload length to the actuall average rtt could have a positive effect on pps throughput.
Current thread:
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet], (continued)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Stephen Sprunk (Dec 16)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Mikael Abrahamsson (Dec 16)
- Message not available
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] David Meyer (Dec 15)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Marshall Eubanks (Dec 15)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Christopher L. Morrow (Dec 15)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] David Meyer (Dec 15)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Christopher L. Morrow (Dec 15)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Mark Smith (Dec 16)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Michael . Dillon (Dec 16)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Chris Woodfield (Dec 18)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Joe Maimon (Dec 18)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Jay Hennigan (Dec 18)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Joe Maimon (Dec 18)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Mikael Abrahamsson (Dec 18)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Joe Maimon (Dec 18)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] tony sarendal (Dec 18)
- Message not available
- RE: The Qos PipeDream [Was: RE: Two Tiered Internet] Christopher L. Morrow (Dec 16)
- Re: The Qos PipeDream [Was: RE: Two Tiered Internet] Stephen Sprunk (Dec 16)
- RE: The Qos PipeDream [Was: RE: Two Tiered Internet] Sean Donelan (Dec 16)
- Re: The Qos PipeDream Florian Weimer (Dec 16)