Hi Rich, Thanks for your response. I changed the title to "network topology confidentiality" according to you explanation. See inline.
From: "Woundy, Richard" <[email protected]> > Before I answer, let me distinguish 'privacy' from > 'confidentiality'. I > would lump issues concerning disclosure of subscriber information > under'privacy', and issues concerning disclosure of network > topology etc > under 'confidentiality'. > Thank you again for the detailed explanation. > > if the network map which discloses the IP prefixes under each PID > defined in the ALTO protocol base draft okay with them > > The sensitivity of the information may depend on the size and > scope of > the PID. > > If the PID encompasses all of the ISP's prefixes, that information may > be available from sources other than ALTO. For example, someone > may use > 'whois' information (e.g. https://ws.arin.net/whois) or a BGP looking > glass (e.g. http://www.bgp4.as/looking-glasses or > http://www.ris.ripe.net/cgi-bin/lg/index.cgi) to obtain ISP prefix > information. > Right. I agree. This kind of high level information can be easily got from these sources. > If the PID is limited to prefixes in a particular metropolitan area, > that information might not be easily gleaned from public data sources > and might be considered confidential by the ISP. > This is really what I concern about. Some ISPs have large network, which covers at least several metropolitan areas. The intro-domain traffic optimizatio is needed. We actually need that level of PIDs. But disclosure of the IP prefixes under these PIDs might be a concern then. > If the PID represents prefixes associated with customers having a > particular service tier, then there may or may not be privacy > implications about revealing this information. > > Hope this helps. It really helps :) BR, Haibin > > -- Rich > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of > songhaibin 64081 > Sent: Wednesday, March 24, 2010 6:47 PM > To: [email protected] > Subject: [alto] ALTO privacy again > > Hi, > > Just want to get some feedback from the network operators, if the > network map which discloses the IP prefixes under each PID defined in > the ALTO protocol base draft okay with them, or if they are > willing to > avoid this. > > Thanks, > Haibin > > _______________________________________________ > alto mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/alto > _______________________________________________ alto mailing list [email protected] https://www.ietf.org/mailman/listinfo/alto
