Hi Lingli, A very interesting document, and the idea of using cache locations and types to compute network map and cost map is novel.
Here are some early comments: - page 1 Abstract: it can be helpful to add a sentence or two on the terms "forward caching" and "transparent caching", as they are not complex concepts, but many readers may not always remember their definitions. - page 1: DIPs are typos of PIDs? - page 2: 80% traffic is P2P in China Mobile WLANs?! Do you have a more detailed breakdown which you can share? This can help with our understanding of the problem. - page 3: "characteristics of the DCF model in 802.11 ... downlink congestion" It is not clear to me which DCF properties are at play here. For ChinaMobile public WLANs, both downlink and uplink are scheduled by DCF? -page 3: "at AC": AC is introduced later in the document. It can be helpful to define it first before use. - page 3: "suboptimal to use network type as dividers for different PIDs..." Can you please elaborate some more here on why suboptimal? Is it consistent with the rest? - page 5/Sec. 3.2-3.3 It seems that you may use the general Distributed System/BSS/ESS concept of 802.11. Does it help to use the terms of 802.11? Your architecture appears to extend beyond different types of networks, - page 7/Sec. 4.1: "other local peers outside ..." Remove local? My understanding is that the details of Sec. 4.1 are important for others to understand your messages; hence, will it be better if you elaborate a bit on the process. In more details, is it possible to derive a quantitive model to compute normalized cost maps, based on location of caches, as you mentioned, as well as cache hit rations? Just some initial comments. Thanks! Richard On Thursday, July 4, 2013, 邓灵莉/Lingli Deng wrote: > Hi all, > > We have just submitted a draft proposing to take considerations on the > locations of operator-deployed P2Pcaches in the formation of network > topology abstraction. > http://www.ietf.org/internet-drafts/draft-deng-alto-p2pcache-00.txt > > Your comments are welcome. Thank you~ > > BR > Lingli > > -----邮件原件----- > 发件人: [email protected] <javascript:;> [mailto: > [email protected] <javascript:;>] > 发送时间: 2013年7月4日 12:00 > 收件人: Deng Lingli; Lingli Deng; Yan Zhang > 主题: New Version Notification for draft-deng-alto-p2pcache-00.txt > > > A new version of I-D, draft-deng-alto-p2pcache-00.txt > has been successfully submitted by Lingli Deng and posted to the > IETF repository. > > Filename: draft-deng-alto-p2pcache > Revision: 00 > Title: Considerations for ALTO with network-deployed P2P > caches-00 > Creation date: 2013-07-04 > Group: Individual Submission > Number of pages: 8 > URL: > http://www.ietf.org/internet-drafts/draft-deng-alto-p2pcache-00.txt > Status: http://datatracker.ietf.org/doc/draft-deng-alto-p2pcache > Htmlized: http://tools.ietf.org/html/draft-deng-alto-p2pcache-00 > > > Abstract: > Transparent forwarding caching effectively localizes the downloading > P2P traffic within the sub-net under its coverage resulting in > reduction of network cost for cross-boundary peer selection, whereas > transparent reverse caching blocks the uploading traffic outside a > wireless sub-net leading to elimination of network cost for wireless > uploading peer selection. In other words, caching between pairs of > endpoints changes the traffic cost along the way. > > Therefore, it is proposed to use locations of caches as dividers of > different DIPs to guide intra-ISP network abstraction and mark costs > among them according to the location and type of relevant caches. > > > > > The IETF Secretariat > > > > > _______________________________________________ > alto mailing list > [email protected] <javascript:;> > https://www.ietf.org/mailman/listinfo/alto >
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