Hi, Hesham Thanks for the info. The reference from prof. Mark has been given in the draft as [UCL-Mark-Handley] (sec. 7.2.2), the paper has demonstrated that satellite relay can achieve shorter latency than ground fiber network through simulation. But for commercial use and widely deployment, IETF still needs technologies/protocols to solve issues in "multiple satellite relay", such as path/satellite selection, IP continuity, etc. Enhanced or new anchor-less mobility technologies might be needed to handle so quick/frequent hands over and topology changes.
Regards Lin From: Hesham ElBakoury <[email protected]> Sent: Tuesday, July 6, 2021 7:51 PM To: Lin Han <[email protected]> Cc: UTTARO, JAMES <[email protected]>; [email protected]; [email protected]; [email protected]; [email protected] Subject: Re: [Int-area] New Version Notification for draft-lhan-problems-requirements-satellite-net-00.txt Mark Handley published the paper "Using ground relays for low-latency wide-area routing in megaconstellations" to show that even if we do not have ISL we can use ground terminals to route traffic with better latency than fiber links. Thanks Hesham On Tue, Jul 6, 2021, 10:08 AM Lin Han <[email protected]<mailto:[email protected]>> wrote: Hi, Jim I don't have clear answer. What I can guess now is that most of current technologies (with enhancement) can be used, but some new technologies might be needed to solve the satellite specific issues, such as fast mobility, frequent topology changes, constraints in satellite power, security in open space, etc. It is up to the community to decide what new technologies and what new protocols will be developed. Regards Lin -----Original Message----- From: UTTARO, JAMES <[email protected]<mailto:[email protected]>> Sent: Tuesday, July 6, 2021 7:20 AM To: Lin Han <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]> Subject: RE: New Version Notification for draft-lhan-problems-requirements-satellite-net-00.txt Lin, Are you suggesting that the current set of protocols can be used with or without enhancements or is the uniqueness of the satellite network require new protocol(s) to address the architecture you have laid out.. Thanks, Jim Uttaro -----Original Message----- From: Idr <[email protected]<mailto:[email protected]>> On Behalf Of Lin Han Sent: Saturday, July 03, 2021 8:41 PM To: [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]> Subject: [Idr] FW: New Version Notification for draft-lhan-problems-requirements-satellite-net-00.txt Hi, This draft analyzed the problems and requirements for the satellite network when it is integrated with Internet by current routing technologies. It may be relevant and interesting to internet, BGP, IGP. The further solution proposals may also come from different groups including research initiative SARAH. Look forwarding to discussion and comments. Thanks Lin -----Original Message----- From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Sent: Saturday, July 3, 2021 5:07 PM To: Lin Han <[email protected]<mailto:[email protected]>>; Richard Li <[email protected]<mailto:[email protected]>> Subject: New Version Notification for draft-lhan-problems-requirements-satellite-net-00.txt A new version of I-D, draft-lhan-problems-requirements-satellite-net-00.txt has been successfully submitted by Lin Han and posted to the IETF repository. Name: draft-lhan-problems-requirements-satellite-net Revision: 00 Title: Problems and Requirements of Satellite Constellation for Internet Document date: 2021-07-03 Group: Individual Submission Pages: 32 URL: 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mp;reserved=0 Abstract: This document presents the detailed analysis about the problems and requirements of satellite constellation used for Internet. It starts from the satellite orbit basics, coverage calculation, then it estimates the time constraints for the communications between satellite and ground-station, also between satellites. How to use satellite constellation for Internet is discussed in details including the satellite relay and satellite networking. The problems and requirements of using traditional network technology for satellite network integrating with Internet are finally outlined. 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