Re: IPv6 support by wifi systems
On Feb 12, 2013, at 7:32 PM, Karl Auer ka...@biplane.com.au wrote: On Tue, 2013-02-12 at 16:29 -0500, Brandon Ross wrote: It seems that, then, MLD snooping is valuable as it will prevent DAD and other ND traffic from using bandwidth towards hosts not in that group. It will prevent *all* multicast traffic from using bandwidth towards hosts not in the multicast groups involved. ND, DAD etc are just specific cases. Other than solicited node multicast, is MLD used anywhere else in a network that does not have layer 3 multicast enabled on a router? MLD is used for all multicast - so a DHCPv6 packet, for example, will only go to any relays and servers in the subnet. *Any* multicast will be limited to its listeners. The only multicast that will go to all nodes will be multicast sent to the all link-local nodes address - and even that will not go to non-IPv6 nodes. MLD snooping happens on switches - you will get the benefit even if in an isolated network (no router at all). In a wifi environment, however, this has additional complexity. A multicast packet originating within the WAP or from the wired side of the WAP and destined for more than one wireless host should be sent to be heard by all hosts so it is only transmitted once. Otherwise it ties up excessive air time. In this regard, a WAP is more like a hub than a switch. A multicast packet originating from a wifi host, OTOH, must be repeated by the WAP so that all subscribed hosts can hear it. Owen
RE: The 100 Gbit/s problem in your network
Multicast is dead. Feel free to disagree. :-) Tim: Multicast will never be dead. With ever raising bandwidth needs we'll always welcome a distribution method that allows us to pass the same data least times over the least number of links. We all remember the spikes in BW demands when the Austrian fellow jumped from space And regarding the global m-cast. Well we don't need it. You can get the IPTV streams via direct link or via common carrier's mvpn adam
Re: Muni fiber: L1 or L2?
Masataka, Using the UK as a model for US and Canadian deployments is a fallacy. The population density there is 673 per square mile, much closer to Japan's (873 per sq mile) than either the US (89 per sq mile) or Canada (10 per sq mile). The UK also has a legal monopoly for telephone infrastructure and very different regulatory system. Using the UK for anything in this discussion is simply wrong. You may be a brilliant conversationalist in Japanese, but you're not making a convincing argument in English and simply railing that your position is correct without regard to countering information isn't going to convince anyone. Keep on this track and you're just going to be ignored by most people on the list. On Tue, Feb 12, 2013 at 5:57 PM, Masataka Ohta mo...@necom830.hpcl.titech.ac.jp wrote: Scott Helms wrote: Numbers? Examples? Greenfield SS and PON deployment costs in Japan was already shown. Japan has one of the highest population densities of major economies in the The examples are in rural area and I already stated population density in English. No, the only reason to insist on PON is to make L1 unbundling not feasible. I don't know what conspiracy theory you're ascribing to here, but this is incorrect. PON being more expensive than SS, that is the only explanation. No, SS is cheaper than PON without exception. Prove it. See above or below. If the initial density of subscribers is high, SS is fine. If it is not, initially, most electric equipment, OE port, fibers, splitters and a large closures containing the splitters of PON can not be shared by two or more subscribers, which means PON incurs much more material and labor cost for each initial subscriber than SS. Masataka Ohta -- Scott Helms Vice President of Technology ZCorum (678) 507-5000 http://twitter.com/kscotthelms
Re: Muni fiber: L1 or L2?
Warren Bailey wrote: No one wants to deal with an arrogant prick, especially one who says someone lost because your opinion seems to be more valid to yourself. Figures in http://www.soumu.go.jp/main_sosiki/joho_tsusin/policyreports/chousa/bb_seibi/pdf/041209_2_14.pdf is not my opinion but neutral data from a governmental regulator of Japan like FCC of USA. According to the data, the reality is that PON is more expensive than SS, w.r.t. for both cabling and equipments. So far, no one could have provided any concrete data or consistent theory to deny it. If you can't accept the shown reality that PON is more expensive than SS and insist on stating it were my opinion without any evidences, its your arrogance. PERIOD. Masataka Ohta
Re: Muni fiber: L1 or L2?
Scott Helms wrote: Masataka, Using the UK as a model for US and Canadian deployments is a fallacy. May or may not be. But, what Using the UK as a model for US and Canadian deployments!? I'm afraid it's not me but you to have done so. So? Who are you arguing against? You may be a brilliant conversationalist in Japanese, but you're not making a convincing argument in English and simply railing that your position is correct without regard to countering information isn't going to convince anyone. If you feel so, it merely means that your ability to understand English is a lot worse than mine. Sorry, but, it is your problem. Keep on this track and you're just going to be ignored by most people on the list. I'm afraid it is also your problem to be suffered by you. Masataka Ohta
Re: Muni fiber: L1 or L2?
On 13 February 2013 12:34, Scott Helms khe...@zcorum.com wrote: Using the UK as a model for US and Canadian deployments is a fallacy. I don't believe anyone was looking at the UK model? But now that you mention it the UK has a rather interesting model for fibre deployment, a significant portion of the country has fibre optic broadband avaliable from multiple providers. BT Openreach (and others on their infrastructure) offer Fibre Optic Broadband over twisted pair, and VirginMedia offer Fibre Optic Broadband over coax. The UKs 'just pretend it's fibre' deployment method is cheaper than both PON and SS. Only requirement is that you have a regulator that doesn't care when companies flat out lie to customers. - Mike
NOC display software
Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. -- Thank You, Joe
Re: NOC display software
On 13 February 2013 15:19, JoeSox joe...@gmail.com wrote: Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. Install firefox, open tabs for everything you wish to display, install Tab Slideshow and set it to cycle. https://addons.mozilla.org/en-us/firefox/addon/tab-slideshow/ Then just hit F11 and put Firefox into fullscreen mode, works on Win/Mac/Linux. -- Nat 07531 750292 http://natmorris.co.uk
Re: NOC display software
On 13/02/13 15:19, JoeSox wrote:
Just wondering if anyone can recommend Windows software
This pains me to do this
My quick google fu:
http://www.autohotkey.com/
Loop {
Send {Alt down}{Tab down}{Alt up}{Tab up}
Sleep 6 ; wait 60 seconds
}
You may have to switch off 'Tab through recently used windows' [Don't
think this is an issue with XP]
Cheers
--
Marcus Taylor (Database Application Developer)
London Internet Exchange Ltd. 2nd Floor Trinity Court, Trinity Street,
PE1 1DA
Registered England and Wales number 3137929
DDI 01733 207724
Re: NOC display software
On 13-2-2013 16:19, JoeSox wrote: Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. We use a Dell Optiplex that drives 2 rotated FullHD 42 inch TV's. This gives us effectively a 2k x 4k resolution to work with. We have written a custom webpage that refreshes divs automatically, it has a country map and puts the various sites on the map where the outage is. This is mainly handy for DSL outages. The left TV is almost entirely a map of the Netherlands with a few Nagios summaries and refresh counters underneath. The right TV pane lists the nagios detail and various business processes as well as open tickets from our ticket system. We use Chrome in kiosk mode, but Firefox could work too. Cheers, Seth
Re: Muni fiber: L1 or L2?
- Original Message - From: Masataka Ohta mo...@necom830.hpcl.titech.ac.jp If you can't accept the shown reality that PON is more expensive than SS and insist on stating it were my opinion without any evidences, its your arrogance. PERIOD. Nope. It's you, dude. Really. plonk Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274
Re: IPv6 support by wifi systems
Access point support from many vendors seems okay. But another vendor gap on IPv6 is WiFi AAA, policy servers, and tunnel servers from vendors like Ericsson and ALU. I hope to see richer IPv6 support for these aspects of WiFi (helpful for those operating lots of outdoor WiFi systems for example). Jason On 2/11/13 11:23 PM, Brandon Ross br...@pobox.com wrote: Like so many things IPv6, many of the wifi vendors seem to lack decent support for IPv6 clients. I'm not sure why I thought the situation was better than it seems to be, I guess I'm just an optimist. Anyway, what wifi vendors provide the best support for IPv6? I don't really care too much about management, but to deploy wifi in a service provider environment with IPv6, it would seem that you'd want at least: RA Guard DHCPv6 Shield (unless you just do SLAAC, I guess) IPv6 Source Address Guard Am I missing anything critical? -- Brandon Ross Yahoo AIM: BrandonNRoss +1-404-635-6667ICQ: 2269442 Schedule a meeting: https://doodle.com/brossSkype: brandonross
Re: Muni fiber: L1 or L2?
Sadly, despite this being challenged with both the telecoms regulator (Ofcom) and advertising watchdog (ASA), for some reason both seem pretty happy with the utter farce that is advertising BT/OpenReach's VDSL based Fibre To The Cabinet and Virgin Media's Hybrid Fibre Coax networks as fibre optic broadband. We have a very small amount of Fibre To The Home/Fibre To The Premise being deployed by BT/Openreach using some kind of PON technology, but I'm not sure which variant off-hand. We were supposed to be getting FTTP where I live last March, but for some reason BT silently scrapped that plan and now we are getting FTTC this March apparently... I'm not going to hold my breath though! Edward Dore Freethought Internet On 13 Feb 2013, at 15:07, Mike Jones wrote: On 13 February 2013 12:34, Scott Helms khe...@zcorum.com wrote: Using the UK as a model for US and Canadian deployments is a fallacy. I don't believe anyone was looking at the UK model? But now that you mention it the UK has a rather interesting model for fibre deployment, a significant portion of the country has fibre optic broadband avaliable from multiple providers. BT Openreach (and others on their infrastructure) offer Fibre Optic Broadband over twisted pair, and VirginMedia offer Fibre Optic Broadband over coax. The UKs 'just pretend it's fibre' deployment method is cheaper than both PON and SS. Only requirement is that you have a regulator that doesn't care when companies flat out lie to customers. - Mike
Re: home network monitoring and shaping
On 02/12/2013 04:46 PM, Joel Maslak wrote: Large buffers have broken the average home internet. I can't tell you how many people are astonished when I say one of your family members downloading a huge Microsoft ISO image (via TCP or other congestion-aware algorithm) shouldn't even be noticed by another family member doing web browsing. If it is noticed, the network is broke. Even if it's at the end of a slow DSL line. This is true only to a point: if you have 5 people streaming movies on a 2 people broadband you're going to have problems regardless of the queuing discipline. That said, it's pretty awful that in this day and age that router vendors can't be bothered to set the default linux kernel queuing parameters to something reasonable. In any case, my point was really about wanting to deal with what happens when your isp bandwidth is saturated and being able to track it down and/or kill off the offenders. I haven't bought a router in the last year or two as apps have become de rigueur, but it sure seems like it would be nice to be able to do that. I'm pretty sure that I still can't (= being a dumb consumer, not a net geek jockey), but would like to hear otherwise. Mike
Re: home network monitoring and shaping
I've had good luck with a via mini ITX board and http://ipcop.org/ This was in 2005 so things may have changed/progressed. It wasn't hard to give out some static dhcp leases and look at graphs and see who the bandwidth piggies were, and then set some throttling. Housemates weren't kicking down any money for the DSL line and running p2p sharing apps... Not good for latency sensitive gaming! Sean On 2/13/13 9:40 AM, Michael Thomas wrote: On 02/12/2013 04:46 PM, Joel Maslak wrote: Large buffers have broken the average home internet. I can't tell you how many people are astonished when I say one of your family members downloading a huge Microsoft ISO image (via TCP or other congestion-aware algorithm) shouldn't even be noticed by another family member doing web browsing. If it is noticed, the network is broke. Even if it's at the end of a slow DSL line. This is true only to a point: if you have 5 people streaming movies on a 2 people broadband you're going to have problems regardless of the queuing discipline. That said, it's pretty awful that in this day and age that router vendors can't be bothered to set the default linux kernel queuing parameters to something reasonable. In any case, my point was really about wanting to deal with what happens when your isp bandwidth is saturated and being able to track it down and/or kill off the offenders. I haven't bought a router in the last year or two as apps have become de rigueur, but it sure seems like it would be nice to be able to do that. I'm pretty sure that I still can't (= being a dumb consumer, not a net geek jockey), but would like to hear otherwise. Mike
puck.nether.net outage?
Anyone know about puck.nether.net? I read the outages list via web archive there, but can't connect currently. (I know - irony or what.) If you know what's going on, please post on NANOG? kthanks, Brian
Re: IPv6 support by wifi systems
Rather old document from 2010: Cisco + IPv6 over CAPWAP protocol: http://d2zmdbbm9feqrf.cloudfront.net/2012/usa/pdf/BRKEWN-2010.pdf
Re: puck.nether.net outage?
Checking; thanks. - jra Brian Dickson brian.peter.dick...@gmail.com wrote: Anyone know about puck.nether.net? I read the outages list via web archive there, but can't connect currently. (I know - irony or what.) If you know what's going on, please post on NANOG? kthanks, Brian -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.
Re: puck.nether.net outage?
wait, email outages! wait! :) apparently jared's working on it. On Wed, Feb 13, 2013 at 2:54 PM, Jay Ashworth j...@baylink.com wrote: Checking; thanks. - jra Brian Dickson brian.peter.dick...@gmail.com wrote: Anyone know about puck.nether.net? I read the outages list via web archive there, but can't connect currently. (I know - irony or what.) If you know what's going on, please post on NANOG? kthanks, Brian -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.
Re: puck.nether.net outage?
On Wed, Feb 13, 2013 at 3:08 PM, Christopher Morrow morrowc.li...@gmail.com wrote: wait, email outages! wait! :) apparently jared's working on it. oh sorry,. 'whats going on' == zombie attack... http://www.krtv.com/news/bogus-emergency-alert-message-transmitted/ On Wed, Feb 13, 2013 at 2:54 PM, Jay Ashworth j...@baylink.com wrote: Checking; thanks. - jra Brian Dickson brian.peter.dick...@gmail.com wrote: Anyone know about puck.nether.net? I read the outages list via web archive there, but can't connect currently. (I know - irony or what.) If you know what's going on, please post on NANOG? kthanks, Brian -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.
Re: puck.nether.net outage?
On Wed, Feb 13, 2013 at 3:09 PM, Christopher Morrow morrowc.li...@gmail.com wrote: apparently jared's working on it. sorry, also: should be better later today is the update...
Re: NOC display software
Hello, This should also work and can be customised however you want: http://pastebin.com/ty324mr8 I did add a test version at http://atl.ezeea.com/rotate.html just to check it if you want. HTH, Calin On 2/13/13 4:19 PM, JoeSox joe...@gmail.com wrote: Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. -- Thank You, Joe
Re: puck.nether.net outage?
Greetings, On Wed, 13 Feb 2013, Christopher Morrow wrote: On Wed, Feb 13, 2013 at 3:09 PM, Christopher Morrow morrowc.li...@gmail.com wrote: apparently jared's working on it. sorry, also: should be better later today is the update... Or the term we used at the ANS NOC (internally, of course) was: It be broke. We be fixin' it --- Jay Nugent NSFnet/ANSnet 1992-1998
Re: NOC display software
You can do this using Javascript as well... 2013/2/13 Calin Chiorean calin.chior...@secdisk.net Hello, This should also work and can be customised however you want: http://pastebin.com/ty324mr8 I did add a test version at http://atl.ezeea.com/rotate.html just to check it if you want. HTH, Calin On 2/13/13 4:19 PM, JoeSox joe...@gmail.com wrote: Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. -- Thank You, Joe -- []'s Lívio Zanol Puppim
RE: NOC display software
I use a VBScript that just ALT Tabs to go from screen to screen. -Original Message- From: Livio Zanol Puppim [mailto:livio.zanol.pup...@gmail.com] Sent: Wednesday, February 13, 2013 4:17 PM To: Calin Chiorean Cc: nanog@nanog.org Subject: Re: NOC display software You can do this using Javascript as well... 2013/2/13 Calin Chiorean calin.chior...@secdisk.net Hello, This should also work and can be customised however you want: http://pastebin.com/ty324mr8 I did add a test version at http://atl.ezeea.com/rotate.html just to check it if you want. HTH, Calin On 2/13/13 4:19 PM, JoeSox joe...@gmail.com wrote: Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. -- Thank You, Joe -- []'s Lívio Zanol Puppim
Re: NOC display software
On Wed, Feb 13, 2013 at 7:19 AM, JoeSox joe...@gmail.com wrote: Just wondering if anyone can recommend Windows software (it could be Linux too but I might need to create a separate host for that configuration) that enables rotating [on one monitor] several webpages (dashboards) or windows (application dashboards). It would be nice if it was freeware or open source but whatever works best is what I am looking for. For example, if I wanted one monitor to cycle thru my local SolarWinds Orion, Office 365 Health Status, and anyother webdashboards. Tab Mix Plus is the one that I use for that. https://addons.mozilla.org/en-us/firefox/addon/tab-mix-plus/
Re: Muni fiber: L1 or L2?
Edward Dore wrote: Sadly, despite this being challenged with both the telecoms regulator (Ofcom) and advertising watchdog (ASA), for some reason both seem pretty happy with the utter farce that is advertising BT/OpenReach's VDSL based Fibre To The Cabinet and Virgin Media's Hybrid Fibre Coax networks as fibre optic broadband. Sadly, it is impossible to say FTTC not fiber optic broadband, because it is broadband (at least with today's access speed) with fiber optic. We were supposed to be getting FTTP where I live last March, but for some reason BT silently scrapped that plan and now we are getting FTTC this March apparently... Obviously because it makes L1 unbundling difficult. Masataka Ohta
Re: Muni fiber: L1 or L2?
In message 511c3a4a.7050...@necom830.hpcl.titech.ac.jp, Masataka Ohta writes: Edward Dore wrote: Sadly, despite this being challenged with both the telecoms regulator (Ofcom) and advertising watchdog (ASA), for some reason both seem pretty happy with the utter farce that is advertising BT/OpenReach's VDSL based Fibre To The Cabinet and Virgin Media's Hybrid Fibre Coax networks as fibre optic broadband. Sadly, it is impossible to say FTTC not fiber optic broadband, because it is broadband (at least with today's access speed) with fiber optic. And by that argument pots dialup is fiber optic because the packets went over a fiber optic link to get to the CO. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
Re: Muni fiber: L1 or L2?
Game. Blouses. From my Android phone on T-Mobile. The first nationwide 4G network. Original message From: Mark Andrews ma...@isc.org Date: 02/13/2013 5:25 PM (GMT-08:00) To: Masataka Ohta mo...@necom830.hpcl.titech.ac.jp Cc: nanog@nanog.org Subject: Re: Muni fiber: L1 or L2? In message 511c3a4a.7050...@necom830.hpcl.titech.ac.jp, Masataka Ohta writes: Edward Dore wrote: Sadly, despite this being challenged with both the telecoms regulator (Ofcom) and advertising watchdog (ASA), for some reason both seem pretty happy with the utter farce that is advertising BT/OpenReach's VDSL based Fibre To The Cabinet and Virgin Media's Hybrid Fibre Coax networks as fibre optic broadband. Sadly, it is impossible to say FTTC not fiber optic broadband, because it is broadband (at least with today's access speed) with fiber optic. And by that argument pots dialup is fiber optic because the packets went over a fiber optic link to get to the CO. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
Re: NANOG Digest, Vol 61, Issue 88
On Feb 13, 2013, at 4:00 PM, nanog-requ...@nanog.org wrote: -- Message: 3 Date: Wed, 13 Feb 2013 10:50:50 -0800 From: Sean Lazar kn...@toaster.net To: Michael Thomas m...@mtcc.com Cc: NANOG list nanog@nanog.org Subject: Re: home network monitoring and shaping Message-ID: 511be08a.4020...@toaster.net Content-Type: text/plain; charset=ISO-8859-1 I've had good luck with a via mini ITX board and http://ipcop.org/ Anyone have good experience addressing this with TomatoUSB's QoS features? Specifically the Toastman builds. Courtney Smith courtneysm...@comcast.net () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments
Re: puck.nether.net outage?
On Feb 13, 2013, at 4:00 PM, Jay Nugent j...@nuge.com wrote: Greetings, On Wed, 13 Feb 2013, Christopher Morrow wrote: On Wed, Feb 13, 2013 at 3:09 PM, Christopher Morrow morrowc.li...@gmail.com wrote: apparently jared's working on it. sorry, also: should be better later today is the update... Or the term we used at the ANS NOC (internally, of course) was: It be broke. We be fixin' it http://www.youtube.com/watch?v=1D1cap6yETA If you notice something broken, *please* email me in private. I likely will be writing up a blog post or something about this… - Jared
