China’s Slow Transnational Network

investment themselves. Here is the link to our paper: https://www.cs.ucr.edu/~zhiyunq/pub/sigmetrics20_slowdown.pdf We appreciate any comments or feedback. -- Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside

Re: China’s Slow Transnational Network

Yes, the sentence is missing a ‘not’. Sorry about that. It’s not discriminating or differentiating any specific kinds of traffic. On Mon, Mar 2, 2020 at 10:56 AM Valdis Klētnieks wrote: > On Sun, 01 Mar 2020 21:00:05 -0800, Pengxiong Zhu said: > > > There are a few things notewort

Re: China’s Slow Transnational Network

China to outside is not significant enough to throttle). Maybe... I dunno get rid of the Great Firewall of China? > What do you mean? Do you mean the slow traffic is to bypass the GFW or the slow traffic is caused by GFW? Best, Pengxiong Zhu Department of Computer Science and Engineering U

Re: China’s Slow Transnational Network

actually doing it. Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Mon, Mar 2, 2020 at 8:38 AM Matt Corallo wrote: > It also gives local competitors a leg up by helping domestic apps perform > better simply by being hosted domest

Re: China’s Slow Transnational Network

In fact, the three large carriers provide 98.5% of China’s total transnational bandwidth. We observe this across all the three large carriers, as well as one smaller carrier, CERNET(China Education and Research Network). Best, Pengxiong Zhu Department of Computer Science and Engineering

Re: China’s Slow Transnational Network

g to GFW and the side effect of deep packet inspection. In fact, we designed a small experiment to locate the hops with GFW presence, and then try to match them with the bottleneck hops. We found only in 34.45% of the cases, the GFW hops match the bottleneck hops. Best, Pengxiong Zhu Department of

Re: China’s Slow Transnational Network

Yes, CERNET has indeed smaller slowdown period(4 hours) than commodity networks(12 hours), but still has slowdown. Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Mon, Mar 2, 2020 at 2:36 PM David Burns wrote: > Did you compare CER

Re: China’s Slow Transnational Network

from slow speed. Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Mon, Mar 2, 2020 at 8:11 AM Compton, Rich A wrote: > My guess is that it’s all the DDoS traffic coming from China saturating > the links. > > > > *From:

Re: China’s Slow Transnational Network

by "these networks"? When you say "peering outside of China", who is peering who exactly? Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Tue, Mar 3, 2020 at 12:17 AM Mark Tinka wrote: > > > On 3/Mar/20 00:57, Tom

Re: China’s Slow Transnational Network

implement great big firewalls. Our problems > are quite different :-\... Not having great big firewalls tends to help :-). > Seems like you also think GFW is part of the cause, however, we don't have direct evidence. Just curious, What is your "problems"? I thought it'

Re: China’s Slow Transnational Network

I see. Thank you! Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Sat, Mar 21, 2020 at 9:13 AM Mark Tinka wrote: > > > On 21/Mar/20 09:09, Pengxiong Zhu wrote: > > How do they deliberately congest peering ports? Do you

Re: China’s Slow Transnational Network

comparing to the traffic coming in. Also, why would the three purchase outbound traffic if they set their inbound traffic artificially high? They could charge some peers less for the outbound traffic to solve the problem. Best, Pengxiong Zhu Department of Computer Science and Engineering University of

The Cost of Paid Peering with Chinese ISPs

ould be much appreciated if the operators of any such networks can give chime in. Thanks! Regards, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside

Re: The Cost of Paid Peering with Chinese ISPs

stions. > > On Wed, Apr 1, 2020 at 12:27 PM Pengxiong Zhu wrote: > >> Hi folks, >> >> We got plenty of positive responses in our last email regarding China's >> slow transnational network. Many are suggesting it is likely influenced by >> commercial decisi

Re: The Cost of Paid Peering with Chinese ISPs

> > No one suggested it isn’t censorship, > In fact, some replies suggested it’s more commercial actions. We said it's "likely influenced by commercial decisions", we didn't say censorship is out of the question. We still think censorship is the possible cause, but we run out of methods to verify i

Re: The Cost of Paid Peering with Chinese ISPs

ships on a public mailing list. ( By and large those terms aren't > likely to be disclosed privately either. :) ) > > On Wed, Apr 1, 2020 at 3:28 PM Pengxiong Zhu wrote: > >> Hi folks, >> >> We got plenty of positive responses in our last email regarding Chin

Re: Amateur Hour - NANOG79 Video Archives?

Hi Mick and Illisa, Is this <https://www.youtube.com/channel/UCIvcN8QNgRGNW9osYLGsjQQ> the NANOG Youtube channel? I didn't find the NANOG79 videos, did you? Regards, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Thu, Jun 4, 2020

Re: Amateur Hour - NANOG79 Video Archives?

ese things, and we know that the vendor that we worked with is really > really busy with a lot of virtual conferences these days. > > On Sun, Jun 14, 2020 at 3:10 PM Pengxiong Zhu wrote: > >> Hi Mick and Illisa, >> >> Is this <https://www.youtube.com/channel/UCIvcN8QN

Re: Long hops on international paths

> so, the cost/benefit for configuring international connectivity in this > way? > > Any thoughts or insights you might have would be greatly appreciated - > off-list responses are welcome. > > Thank you. > > Regards, PB > > Paul Barford > University of Wisconsin - Madison > > -- Regards, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside

Ownership of Routers on Both Ends of Transnational Links

Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside

Re: Ownership of Routers on Both Ends of Transnational Links

453.net How about the two IPs(63.243.205.90, 66.110.59.118) that don't have a reserve DNS name? Since they don't have any PTR records. Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Tue, Apr 16, 2019 at 1:50 PM Ross Tajvar wrote:

Re: Ownership of Routers on Both Ends of Transnational Links

hat > Telia owns the ip space and that PROBABLY the customer identification > is correct. (cu) Yes, in our case, the next hops after all the six routers are some CU IPs. Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Tue, Apr 16

Re: Ownership of Routers on Both Ends of Transnational Links

0.0 0.0 25. AS45102 116.251.113.158 0.0% 100 176.7 177.9 176.5 186.7 2.1 26. AS45102 116.251.115.141 0.0% 100 213.2 213.4 213.1 218.5 0.6 Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Tue, Apr 16, 2019 at 7:37 PM Erik

Re: Ownership of Routers on Both Ends of Transnational Links

Sorry for the confusion. I mean the IPs belong to non-Chinese ISPs but are actually controlled/managed by Chinese ISPs. Best, Pengxiong Zhu Department of Computer Science and Engineering University of California, Riverside On Mon, May 13, 2019 at 8:52 AM Christopher Morrow wrote: > On