Re: Recent NTP pool traffic increase (update)
Hello, I know 133.100.9.2 and 133.100.11.8 are listed. The Server Contact is old information. So, I sent e-mail to webmas...@ntp.org a few times. But, I have't received e-mail from them. I'd like them to change the information. Is there the person knowing the contact information to ntp.org? -- Sho FUJIMURA Information Technology Center, Fukuoka University. 8-19-1, Nanakuma, Jyonan-ku, Fukuoka, 8140180, Japan 2016-12-23 9:04 GMT+09:00 Ask Bjørn Hansen : > Hello, > > Those servers aren’t (and have never been) part of the NTP Pool - > https://www.ntppool.org/en/ > > If they were you could remove them from the system and over the next hours, > days and months the traffic would go away. We also have features to change > the relative amount of clients you get (to just get less queries instead of > withdrawing from the pool altogether). > > Anyway, it looks like your IPs are listed on support.ntp.org as “public > servers”, so removing them from there would be step 1. However there’s no > working mechanism for you to tell the clients that they should go away after > they’ve hard coded your IP in their configuration. (That’s the point of the > NTP Pool system really, to let you offer a public service and have a avenue > to stop doing it, too). > > support.ntp.org appears to be down, but your IPs are listed on the site > according to a Google search: > https://www.google.com/search?q=133.100.9.2+ntp > > > Ask > >> On Dec 21, 2016, at 7:13 PM, FUJIMURA Sho wrote: >> >> Hello. >> >> I operate the public NTP Service as 133.100.9.2 >> and 133.100.11.8 at Fukuoka University, Japan. >> I have a lot of trouble with too much NTP traffic from >> many routers which 133.100.9.2 as default setting of NTP >> has been set like Tenda or LB-Link etc. >> So, although I'd like to contact Firmware developpers of these company >> and would like them to change the default settins, >> is there the person knowing the contact information? >> >> -- >> Sho FUJIMURA >> Information Technology Center, Fukuoka University. >> 8-19-1, Nanakuma, Jyonan-ku, Fukuoka, 8140180, Japan > > >
Re: BCM5341x
The chip really doesn't even function as an Ethernet switch by itself...all of the behavior is software driven. It's the ... actualization of "software defined networking" -- It provides a lot of low level constructs inside the hardware to support your application, but it's really a software defined switch. It has many programmable offload functions the idea being you do not handle packets on the onboard CPU. ContentAware is their term for L4-L7 I believe I don't think it's much more than simple pattern matching in the hardware and can be used to apply as ACL or drive QoS decisions. The chip can do things like handle limited v4/v6 lookups and routing (but it's not going to do ARP response... nor LACP...) It has a huge number of integrated hardware counters, lots are built in but you can count basically anything the hardware can match (which is basically anything you can describe in a stateless manner). So s-flow... probably in hardware it can be programmed to do most or all of it as it's largely copying a buffer into a header but I don't have the data sheets so couldn't say for sure. MCLAG/MLAG, sure, that's software directed and behaves exactly like LACP or static lag down at the hardware. Really the hardware doesn't much care as that all exists above it in the control plane. I'm not clear at all what depth of v4/v6 classification they support - but that's usually the basics of QoS and calling it out specifically is marketing wankery I think. How big the tables can get I don't know. Nearly two decades ago they had 2k in the L3 space with 8K in L2 on 24x100+2x1G ... so I can't imagine it's less than that for table sizes :) probably like 8k/4K entries range as the RAMs and TCAMs haven't scaled up in speed very well. On Sat, Dec 24, 2016 at 15:52 Mike Hammett wrote: > I've asked Broadcom directly, but being as though I don't have an intent > to buy tens of thousands of chips (or any at all), I don't expect I'll hear > back. I was hoping someone here would have some insight. > > > > Do any of you know what functionality is available on those chips? That's > the chip that powers the Ubiquiti 10G switches and I figured I would limit > my most aggressive feature requests to things they can actually deliver > with the platform as is. > > > > Other than things you just assume a managed switch has like 802.1p and > 802.1q, it mentions an advanced ContentAware™ Engine (which means?), > IEEE1588 (sync over Ethernet), 802.1ag (OAM stuff), "Enhanced DoS attack > statistics gathering" (which means?), "IPv4/IPv6 L3 packet classification" > (which means?), etc. > > > > I'm sure there's an array of things to ask about, but MLAG and S-Flow are > at the top of my list at the moment. > > > > > https://www.broadcom.com/products/ethernet-connectivity/switch-fabric/bcm5341x/ > > > > > > > > > > - > > Mike Hammett > > Intelligent Computing Solutions > > > > Midwest Internet Exchange > > > > The Brothers WISP > > > >
Re: DWDM on 250 Km dark fiber without re-amplification
I agree with what Baldur suggested.. Only thing I would point out that .. Hardly anyone installs 200km fiber runs without having some sort of a Regen facility. While you can push the signal over the 200km link, in the long run you may be better off see if there a Regen facility (typically 70/80km) that you can use to re-generate the light. Best of luck. Faisal Imtiaz Snappy Internet & Telecom - Original Message - > From: "Baldur Norddahl" > To: "nanog list" > Sent: Saturday, December 24, 2016 2:30:40 PM > Subject: Re: DWDM on 250 Km dark fiber without re-amplification > Hello > > I have not done this as our links are not that long. However in theory > this is how I would do it. There are nice integrated solutions that will > do it as a black box, but someone else will have to tell you about that. > I am using Fiberstore as a reference because they have the necessary > components with pricing directly online, but there is of course multiple > alternatives. > > So first off forget about 40G and 100G. This will be N x 10G and N can > be as large as 96 channels. 100G would be the same equipment (possibly > without dispersion compensation) but with each 100G stream as four 25G > wavelengths. However the optics are very expensive and hard to get for > 40G and 100G while 10G is relatively cheap and easy. > > You need the following components: > > http://www.fs.com/support/dwdm-edfa-amplifier-for-long-haul-applications-100 > > They list all you need with a nice drawing. Get the components from them > or someone else. The nice integrated solutions are just these components > in a box. > > They only list the solution as 200 km. You will have to send them a mail > and ask if they can do 225 km. > > Also you need to check that the black fiber provider allows amplified > signals at this level. Not everyone do. Normally the signals are not > that dangerous, but with this a unaware tech can go blind if he is > unlucky. It is not clear if the Fiberstore equipment automatically turns > of the laser in the case of a fiber cut and that might also be a > requirement. > > Regards, > > Baldur > > > > Den 24/12/2016 kl. 01.14 skrev Jeremy: >> Hi all, >> >> First, i'm sorry for my english, i'm french and i don't have a good >> level in this language. But i want some informations and i'm sure, >> someone will be give the good anwser about my question. >> >> So, i'm regarding to rent a dual dark fiber in France, the estimated >> distance is 225 Km, but i know there are a lot of optical switching on >> the highway where it's fiber is installed (in theory, all 80 Km). So, >> i used the bad scenario, in adding 25 Km on my need. >> >> I would like to buy a amplificator and multiplexer DWDM to add some >> 10Gb/s waves on this dark fiber. I've see that the amplification is >> better on 100 Gb/s synchronised ports, but we don't have enoug >> capacity on our router to add 100 Gb/s interfaces. >> >> So, someone has installed this type of hardware on a dark fiber >> without regeneration on 250 Km of distance ? >> If yes, with what kind of hardware ? If you are commercial for this >> hardware, please contact me in private message. >> >> Thanks you for your time, >> Jérémy >> AS197922
BCM5341x
I've asked Broadcom directly, but being as though I don't have an intent to buy tens of thousands of chips (or any at all), I don't expect I'll hear back. I was hoping someone here would have some insight. Do any of you know what functionality is available on those chips? That's the chip that powers the Ubiquiti 10G switches and I figured I would limit my most aggressive feature requests to things they can actually deliver with the platform as is. Other than things you just assume a managed switch has like 802.1p and 802.1q, it mentions an advanced ContentAware™ Engine (which means?), IEEE1588 (sync over Ethernet), 802.1ag (OAM stuff), "Enhanced DoS attack statistics gathering" (which means?), "IPv4/IPv6 L3 packet classification" (which means?), etc. I'm sure there's an array of things to ask about, but MLAG and S-Flow are at the top of my list at the moment. https://www.broadcom.com/products/ethernet-connectivity/switch-fabric/bcm5341x/ - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP
Re: Canada joins the 21st century !
Most of the areas without sufficient speed can be addressed with fixed wireless, but usually the regulators become as much of a hindrance as a help. LOS customers are no problem via 5 GHz, but they've drug their feet in allocating useful rules for 3600 and under 700 MHz. - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From: "Baldur Norddahl" To: nanog@nanog.org Sent: Saturday, December 24, 2016 1:08:17 PM Subject: Re: Canada joins the 21st century ! We have customers with 150/30 Mbps service on DSL and next year we will get 300 Mbps. We are just renting access, it is the ILEC that decided to make a large roll out with vectoring, pair bonding and VDSL2 annex 35b. I would say that the majority around here can get at least 50/10 from DSL. There is of course also large areas were you can not. In many cases these areas can be "fixed" by adding another DSLAM closer to the users. We are actually primary a FTTH provider. I just want to point out that you need to be aware of what DSL can do if someone decides to invest in it. It can do 50/10. It will never be able to do the 1000/1000 FTTH that we are selling at $44 USD/month. Cable might be able to compete with that too however. The same ILEC also owns most of the cable network and they are rolling out DOCSIS 3.1 with plans to sell 1000 Mbps next year. Regards, Baldur Den 22/12/2016 kl. 15.59 skrev Jean-Francois Mezei: > This is more of an FYI. > > Yesterday, the CRTC released a big decision on broadband. In 2011, the > same process resulted in CRTC to not declare the Internet as "basic > service" and to set speed goals to 1990s 5/1. > > Yesterday, the CRTC declared the Internet to be a basic service (which > enables additional regulatory powers) and set speed goals to 50/10. > > Note that this is not a definition of broadband as the FCC had done, it > one of many criteria that will be weighted when proposal to get funding > is received. But hopefully, it means the end of deployment of DSL. > > > Also, as a result of declaring it a basic service, the CRTC enables > powers to force ISPs to contrtibute to a fund that will be used to > subsidize deplooyment in rural areas. > > It plans to collect $100 million/year, increasing by $25m each year to > top at $200m which will then be distributed to companies who deploy > internet to unserved areas. > > By setting the speed standard to 50/10, it basically marks any territory > not served by cableco as underserved since telco's copper can't reliably > deliver those speeds. > > > Nothing happens for now because a "follow up" process is needed to > decide how the funding mechanism will work (what portions of a companies > revenues are counted to calculated its mandated contribution to fund) > and how the process of bidding for subsidies will work. That could take > 1 to 2 years. > > Also in the decision is the phasing out of the equivalent programme for > POTS which saw telephone deployed everywhere. The difference is that the > POTS program had an "obligation to serve" whereas the internet doesn't.
Re: DWDM on 250 Km dark fiber without re-amplification
Hello I have not done this as our links are not that long. However in theory this is how I would do it. There are nice integrated solutions that will do it as a black box, but someone else will have to tell you about that. I am using Fiberstore as a reference because they have the necessary components with pricing directly online, but there is of course multiple alternatives. So first off forget about 40G and 100G. This will be N x 10G and N can be as large as 96 channels. 100G would be the same equipment (possibly without dispersion compensation) but with each 100G stream as four 25G wavelengths. However the optics are very expensive and hard to get for 40G and 100G while 10G is relatively cheap and easy. You need the following components: http://www.fs.com/support/dwdm-edfa-amplifier-for-long-haul-applications-100 They list all you need with a nice drawing. Get the components from them or someone else. The nice integrated solutions are just these components in a box. They only list the solution as 200 km. You will have to send them a mail and ask if they can do 225 km. Also you need to check that the black fiber provider allows amplified signals at this level. Not everyone do. Normally the signals are not that dangerous, but with this a unaware tech can go blind if he is unlucky. It is not clear if the Fiberstore equipment automatically turns of the laser in the case of a fiber cut and that might also be a requirement. Regards, Baldur Den 24/12/2016 kl. 01.14 skrev Jeremy: Hi all, First, i'm sorry for my english, i'm french and i don't have a good level in this language. But i want some informations and i'm sure, someone will be give the good anwser about my question. So, i'm regarding to rent a dual dark fiber in France, the estimated distance is 225 Km, but i know there are a lot of optical switching on the highway where it's fiber is installed (in theory, all 80 Km). So, i used the bad scenario, in adding 25 Km on my need. I would like to buy a amplificator and multiplexer DWDM to add some 10Gb/s waves on this dark fiber. I've see that the amplification is better on 100 Gb/s synchronised ports, but we don't have enoug capacity on our router to add 100 Gb/s interfaces. So, someone has installed this type of hardware on a dark fiber without regeneration on 250 Km of distance ? If yes, with what kind of hardware ? If you are commercial for this hardware, please contact me in private message. Thanks you for your time, Jérémy AS197922
Re: Canada joins the 21st century !
We have customers with 150/30 Mbps service on DSL and next year we will get 300 Mbps. We are just renting access, it is the ILEC that decided to make a large roll out with vectoring, pair bonding and VDSL2 annex 35b. I would say that the majority around here can get at least 50/10 from DSL. There is of course also large areas were you can not. In many cases these areas can be "fixed" by adding another DSLAM closer to the users. We are actually primary a FTTH provider. I just want to point out that you need to be aware of what DSL can do if someone decides to invest in it. It can do 50/10. It will never be able to do the 1000/1000 FTTH that we are selling at $44 USD/month. Cable might be able to compete with that too however. The same ILEC also owns most of the cable network and they are rolling out DOCSIS 3.1 with plans to sell 1000 Mbps next year. Regards, Baldur Den 22/12/2016 kl. 15.59 skrev Jean-Francois Mezei: This is more of an FYI. Yesterday, the CRTC released a big decision on broadband. In 2011, the same process resulted in CRTC to not declare the Internet as "basic service" and to set speed goals to 1990s 5/1. Yesterday, the CRTC declared the Internet to be a basic service (which enables additional regulatory powers) and set speed goals to 50/10. Note that this is not a definition of broadband as the FCC had done, it one of many criteria that will be weighted when proposal to get funding is received. But hopefully, it means the end of deployment of DSL. Also, as a result of declaring it a basic service, the CRTC enables powers to force ISPs to contrtibute to a fund that will be used to subsidize deplooyment in rural areas. It plans to collect $100 million/year, increasing by $25m each year to top at $200m which will then be distributed to companies who deploy internet to unserved areas. By setting the speed standard to 50/10, it basically marks any territory not served by cableco as underserved since telco's copper can't reliably deliver those speeds. Nothing happens for now because a "follow up" process is needed to decide how the funding mechanism will work (what portions of a companies revenues are counted to calculated its mandated contribution to fund) and how the process of bidding for subsidies will work. That could take 1 to 2 years. Also in the decision is the phasing out of the equivalent programme for POTS which saw telephone deployed everywhere. The difference is that the POTS program had an "obligation to serve" whereas the internet doesn't.
Re: Canada joins the 21st century !
+1 Joe Loiacono From: Mike Hammett To: Cc: Nanog@nanog.org Date: 12/23/2016 08:20 AM Subject:Re: Canada joins the 21st century ! Sent by:"NANOG" The government getting involved with the Internet rarely goes well. The FCC is a shining example of how to usually do it wrong. - Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP - Original Message - From: "Jean-Francois Mezei" To: Nanog@nanog.org Sent: Thursday, December 22, 2016 8:59:22 AM Subject: Canada joins the 21st century ! This is more of an FYI. Yesterday, the CRTC released a big decision on broadband. In 2011, the same process resulted in CRTC to not declare the Internet as "basic service" and to set speed goals to 1990s 5/1. Yesterday, the CRTC declared the Internet to be a basic service (which enables additional regulatory powers) and set speed goals to 50/10. Note that this is not a definition of broadband as the FCC had done, it one of many criteria that will be weighted when proposal to get funding is received. But hopefully, it means the end of deployment of DSL. Also, as a result of declaring it a basic service, the CRTC enables powers to force ISPs to contrtibute to a fund that will be used to subsidize deplooyment in rural areas. It plans to collect $100 million/year, increasing by $25m each year to top at $200m which will then be distributed to companies who deploy internet to unserved areas. By setting the speed standard to 50/10, it basically marks any territory not served by cableco as underserved since telco's copper can't reliably deliver those speeds. Nothing happens for now because a "follow up" process is needed to decide how the funding mechanism will work (what portions of a companies revenues are counted to calculated its mandated contribution to fund) and how the process of bidding for subsidies will work. That could take 1 to 2 years. Also in the decision is the phasing out of the equivalent programme for POTS which saw telephone deployed everywhere. The difference is that the POTS program had an "obligation to serve" whereas the internet doesn't.
DWDM on 250 Km dark fiber without re-amplification
Hi all, First, i'm sorry for my english, i'm french and i don't have a good level in this language. But i want some informations and i'm sure, someone will be give the good anwser about my question. So, i'm regarding to rent a dual dark fiber in France, the estimated distance is 225 Km, but i know there are a lot of optical switching on the highway where it's fiber is installed (in theory, all 80 Km). So, i used the bad scenario, in adding 25 Km on my need. I would like to buy a amplificator and multiplexer DWDM to add some 10Gb/s waves on this dark fiber. I've see that the amplification is better on 100 Gb/s synchronised ports, but we don't have enoug capacity on our router to add 100 Gb/s interfaces. So, someone has installed this type of hardware on a dark fiber without regeneration on 250 Km of distance ? If yes, with what kind of hardware ? If you are commercial for this hardware, please contact me in private message. Thanks you for your time, Jérémy AS197922
