[15684] in North American Network Operators' Group
Re: Questions: Long Range Dependence
daemon@ATHENA.MIT.EDU (Vern Paxson)
Mon Mar 16 01:47:32 1998
To: Zhang Peng <pgzhang@bupt.edu.cn>
Cc: nanog@merit.edu
In-reply-to: Your message of Sun, 06 Jan 1980 10:36:21 PST.
Date: Sun, 15 Mar 1998 22:40:15 PST
From: Vern Paxson <vern@ee.lbl.gov>
> 1. Single VBR video source traffic is considered as LRD traffic. What are
> the characteristics of multiplexing traffic of multiple sources, (e.g.,
> does the output traffic of an ATM multiplexer have the property of LRD?).
Yes - multiplexed LRD is likewise LRD.
> 2. Since Internet traffic (i.e., LAN/WAN) is partly considered as LRD
> traffic, what impact does it have on design of Bridge/Router?
You need a whole lot of buffer to absorb bursts.
> 3. Where can I find Video traffic database (e.g., film compressed by
> Mpeg-2)?
I know these exist, but unfortunately can't point you at any.
> 4. Are there any mail groups discussing LRD and/or ATM?
I don't know of any for LRD. ATM is discussed in the newsgroup
comp.dcom.cell-relay.
To get more detailed answers, you should dig through the past five
years of SIGCOMM proceedings, and also the past three or so years
of IEEE/ACM Transactions on Networking, both of which have had a
number of LRD-related papers.
Vern
