[WISPA] Diagnosing interference
In our neck of the woods we have some areas where 802.11 systems simply do not function, period (and this is across a range of frequency bands and equipment manufacturers). And sometimes, in some limited cases, we will have a sub who appears to be experiencing interference that is much louder than our rssi at the sub (say they have a -63, but they still can't reliably hear the ap well enough for communication) and there's nothing really obvious in the area we can see. We know it's radio interference because we can play the channel flipping game, but we'd like to be better than that and actually diagnose the problem and identify the source and direction of the transmitter creating the problem, so that we can plan better and actually provide a resolution that will last for that sub. We know about spectrum analysis and such and actually own a handy unit (the Spectran) but it doesn't give real time data useful for direction finding. What are some of the other tools (hand held or truck mounted, not built-in firmware features) you folks use for this? If we had a tool that would just give us knowledge about the non-household applications present in these areas (where non-household is anything with a larger gain antenna and/or power output than a cordless phone or wireless access point), we could even go so far as to try and coordinate with those applications for the betterment of everyone. But just waking up one morning and learning a long time customer now has an Interference problem you have no way to resolve other than by terminating the business relationship, just really sucks ass in my opinion. And when you run out of tricks like new antennas, equipment, alignments and such, that's exactly what you're left with. Mike- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Diagnosing interference
Ralph Fowler wrote: Spectran? Are you talking about the software for a PC sound card? That's not going to do what you want, for sure! There really isn't a cheap solution. We have an expensive hand held unit, looks like an alien ray gun, that does a range of 0 - 6ghz with down to 1mhz resolution per step. The problems are not enough resolution (can't see any difference between -80dbm and -60dbm, or at least, not without a lot of time consuming tweeking and such), and no real-time sweeping capabillity, making a complete pass take too long for direction finding activities (or at least, for my reletive level of inexperience). What I'd want, I think, is a crt with the wavy lines updated in near real time, in a hand held unit I can take into the field and really see what and where things are. I don't care too much about formallities, I'd just like to see that, yes, there's a -37 between 2454 and 2459mhz and that's why this link isn't working. There were a few units from Berkeley Varitronics that we were considering at one point, but unfortunately we couldn't be permitted to receive a live demonstration and so that $4,000 sale had to be postponed indefinately because we don't buy expensive equipment we're not permitted to try out first. And that's too bad because they really do seem to have some quite useful field testing equipment more tuned and designed for wisp field use than the generic spectrum analysis tools previously mentioned. Mike- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Fw: WiFi Max
Marlon K. Schafer (509) 982-2181 wrote: oh brother. Sent by one email addy, signed by someone else. Got my area code right though! The link makes for a funny read. I got a better one just the other day... a letter arrived advising us that a new service will be available in 2007 that offers t1 speed UP and DOWN for $19.99/mo and will be available anywhere you want to be. It's a pure MLM (and MMF!) ploy of course, but what really keeps me laughing are the phony bs claims their website makes. Here's the link: http://www.itsyournet.com/go/12055jz/public__wireless_internet.html They claim it'll go 30 miles, thru trees, buildings, and 20' underground, and yet it's being marketed via MLM and to MMF devotees, not Moto/Intel/Atheros/Broadcom/TI and the others who could actually take such a technology and make real working products that would find their way into the hands of us. -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Not quite the Gremlin, but confusing just the same.
Mark Koskenmaki wrote: I have a customer who called me up on Friday, saying he had trouble with his VOIP phone, and that his service was real slow, had been slow for a few weeks. [snip] You think his radio might be failing? I ahve no othe symptoms on channel 11 or 4 to any other clients (other than 11 is 3 db stronger to a couple of clients who are quite distant and I think are in a noisy area). And yes, this is ALL on 11b mode. It sounds to me as if this client was simply being forced to talk at the 1M rate, which brings down your entire cell because he's taking up so much channel bandwidth everytime he has to send. This is one of the major great failings of 802.11b/g/a/etc, that clients have this type of effect. Probbly, your single client here is able to 'hear' something that your ap doesn't, and that something is on 11 or at least within that span of frequencies. This is a game I espically hate - changing channels for the benefit of a single subscriber, to the potential detriment of others. Mike -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] The Gremlin, redux
John Scrivner wrote: Mac, We believe this is truly an outside offender in 2.4 GHz. I have personally seen a carrier that is several times more power than anything I have ever seen. I only saw it for a brief instant though. This interference just does not last long enough to be caught. The high latency is caused by retransmits but I am sure outside interference is what is leading to the need for frames to be sent again. This effects all channels across the 2.4 GHz bands. We have seen the noise floor jump up higher than our radio power levels when this problem happens. What ever is causing this is running higher power than anything we have in the field. We will look at anything, though, to help troubleshoot and I appreciate your ideas. Scriv We've had this too and have never been able to narrow it down. Basiclly, certain areas and without warning or obvious cause, simply become dead for 2.4ghz in that there appears some very powerful inband interference that is not 802.11b/g and has no obvivious source we can find, but the area of effect is fairly localized (using affected customers to tirangulate). We also have a problem within our hometown of repeatedly experiencing burnt out 2.4ghz equipment. Never happens anywhere else in our county wide footprint, just our hometown and across a wide variety of equipment such as smartbridges, atheros, prism 2.5 cards, cb3's, cisco aironet, you name it. Been looking at this problem for years and simply don't understand it. We've had events like this occuring down one particular street for example and an accesspoint not too far away, all in the space of one evening. We've also had events like one subscriber per day (on 2.4ghz) winding up with burnt out prism card, requiring a truck roll and card replacement. Mike- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Handheld Spectrum analyzer mentioned on list last summer
If you're speaking of the Spectran, I have one and it doesn't seem to work too well for me. The issue for me is that there seems to be not enough resolution to be working with the reletively low power unliscensed systems as we do. I'm sure for paging and gsm it's great but after trying repeatedly to use it for even simple tasks like direction finding and channel sweeping (seeing what's clear), I had to give up and stop wasting time with it. rabbtux rabbtux wrote: All, I recall there was some interest in a German manufactured handheld spectrum analyzer last summer(cost about 1K). Some on the list were going to pool their resources to make a overseas order. Did that ever happen? Does anyone have one of those units?? How does it work? -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] What the heck chews up 100mhz of 5.8ghz?!?
While installing a new canopy accesspoint today, in an unserved community with no other wireless isps and little else, I discovered that I have about a -56 avarage across the entire swath of 5750mhz thru 5845mhz... what the hell?!?!? It's a small area deployment and we had planned on a simple low gain omni, but not now... I don't know who or what but 100mhz, is that really necessary? I'm going to take an sm later and see if I can get a better picture and determine the direction of these signals and see if there's going to be any way to make this work. Out in the middle of nowhere. But does anyone have any idea what in gods name could occupy this much continuous spectrum in 5.8? Mike- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] What the heck chews up 100mhz of 5.8ghz?!?
Charles, I'm suprised! In general I would advocate cooperation and it sounds like perhaps there would be some options here if this does turn out to be a cell carrier or such. We would certainly like to continue earning our reputation as good guys - even with competitors who otherwise would not do likewise - I simply didn't expect this situation here. On a commercial tower we'd be screwed I know. But I think this goes both ways - since I'm going canopy here and going to do 5.8, it's going to hurt them and unintentionally so unless we figure something out. I do have sectorization as an option, as well as 5.2 and 2.4 and 900 if I really want. And cross polarization probbly won't be enough due to the high rssi already. Mike- Charles Wu wrote: Not that this is a good practice...but Wmux radios are extremely sensative to interference on the Rx size (a wiff of anything takes it down) Figure out the Tx/Rx spread (may be 5.3 GHz on that particular site), and shut them down on the Rx side -- maybe then they'll talk =) -Charles P.S. -- if it's a short range shot, they can probably go licensed now for the same price as unlicensed, and they'd get out of your hair completely -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] DAY FROM HELL!!!
At 10:30pm this evening one of our tower routers took to locking up. This is after being replaced just few weeks ago for the same problem. It was the same hardware and I can't tell if it's cold related or not but it doesn't feel like it. I've now put together another replacement and I'm just hoping this holds. What I really need is a source for quality industrial PC type machines with -40 temp ratings,compact flash, gig ethernets and 600mhz cpus (no sound, vga or other bs)... Mark Nash - Lists wrote: Wind storms came through last night. Power out at 6 sites this morning, various power companies. Started at 6 this morning...Put in 2 generators, purchased 8 marine batteries and patched them into my APC UPS units. 2 sites now still running on batteries, 2 on generators. Will be a late night I think... George, I would imagine you guys had it worse out there on the coast... Mark Nash Network Engineer UnwiredOnline.Net 350 Holly Street Junction City, OR 97448 http://www.uwol.net 541-998- 541-998-5599 fax -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] A wisp who went a little too far.......
The really interesting part of this: The attack cut off service for one woman who was waiting for an e-mail notifying her about the availability of an organ transplant that she required, according to prosecutors. Because of her critical status, her provider gave her priority status and restored her access within 24 hours. Had her medical providers sent her an e-mail notifying her of a suitable organ donor and had she not responded because of her lost Internet access, she might have lost her priority for an organ, thus potentially extending the period she would have to wait for another donor, wrote prosecutors in the indictment. People are starting to believe their email is guaranteed and that their computers can be entrusted with life saving information. Worse yet, it appears these prosecutors would have trumped this up and made hay out of it had her mail not gotten there. So in another context - what if the stock pump and dump scammers started using wrapper text that mentioned organ donations to the point of poisoning the Bayesian databases of all spamassassin enabled mail servers? What if the mail has been blocked outright due to other spam filtering already in place? Or put into a quarantine and she didn't look in her quarantine box in time? Or if the sending server of the mail was on an RBL due to some other user at the site sending spam to spamcop spamtraps for example? Drama is drama. I think what this guy did was reprehensible and he certainly deserves the clink, but what he did is not any kind of threat or risk to health and safety - the stupidity of using email and computers for life saving communications IS. $0.02 Mike- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Overage plan help
Marlon - We've recently installed the Barracuda spam firewall and it does a very good job. Espically since there's no per-user liscensing fees, we don't have to concern ourselves with an additional $1 here or there. Heck, we could also just filter your entire domain thru it for you without much problem or expense and it's practically self administering They have a free trial by the way. Postini does however have a new Directory Sync feature for the Service Provider Edition as well as filtering all unregistered users for viruses. They have also added a second virus scan using Authentium, When McAfee scans an email clean it then will be scanned once again by Authentium. -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] bits per mbps
I just wanted to weigh in here and add that filesharing and p2p is really a main driver of the isp business model today and we're going to have to do something to pull this in and make it equitable for everyone. If you think about this, what we're all doing here is paying for expensive dedicated service - eg: marlon's 10mbps pipe, my 45mbps pipe, or whatever - we're paying carriers and large network operators for truely unlimited service at the subscribed port speeds, and we pay a premium for it. In return, we are (usually) getting a quality that justifies the price (otherwise I'd just buy piles of $14.95/mo dsl circuits!). So what we then do is turn it around is add oversubscription to this model so that we can pay someone $400/mbps/month or whatever and then sell this for effectively $20/mbps/month. It used to be that the average broadband user would use say %15 or less of their sustained maximum transfer thruput - which means that they used their 1.5mbps or whatever at full rate for only brief periods of time. This allowed oversubscription to work effectively because the chances were often excellent that full rate transfers weren't being done by a signifigant percentage of others at the same time. But now with the growing demands of p2p/filesharing, this is broken. I routinely have customers now running full blast 24x7 throught the day and night with no letup or break ever and I strongly suspect that most if not all of it is simply wanton copyright violations and wasted downloads of stuff they won't ever even look at anyways. The field service calls I make for support purposes strongly support this notion because I usually get to see the customer pc and of the ones I see, more than %95 are just loaded up to the brim with ripped off songs and movies from limewire,kazaa,edonkey, you name it. The corresponding spyware/junkware infestations and crashing, slowdowns and malfunctions are just desserts of course, and I have never ever seen anyone just using these programs for 'legal purposes'. But back to the main point here - we certainly want to provide good customer service and an overall good user experience. But the discussion needs to be had concerning the definition of what we're selling people, and it cannot continue to be an unlimited pipe that spews forth as much data as you want all the time. I have never used the word 'unlimited' in any advertising and have never promised or alluded to that word at any time. In my business at least, I am leaning twords implementing 'content labeling' of the services offered which would work something like the ingredients on the box of corn flakes, and would describe all the features and restrictions of every service I offer. I think that, longer term, we're all going to have to do this (internet service content labeling) because otherwise, filesharing is going to overrun us all. Shared service is not shared if you're hogging it 24x7 Mike- [EMAIL PROTECTED] wrote: Hi Marlon, Merry Christmas to you and your family! Just a thought, you might want to fire those 9 customers. You could also rate-limit them down to 56K and see how long they stick around. Jeff -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Fiar use policy
My $0.0002(US) worth - we need to begin educating our customers and implementing fair access policies to enforce them and then we need to content label our services so that our customers understand what they are getting with each type of service. Peer to Peer on a pc loaded with stolen music running on autopilot and unlimited data transfer for $39.95/mo, is not a sustainable business model. Neither is singling out suspected abusers and calling them or cutting off their service when some unwritten and arbitrary limit or useage pattern is noticed. The problem is that implementing these systems, is time consuming and complicated. It is also not a default feature of most networks, to have accounting per individual user. Nor is it a default design decision to have an effective single point of rate limiting control that applies to individual users. How many of you have individually rate limited 2.4ghz subs at their cpe, for example? Not many I bet. How many of you have subs directly plugged into a switch port? Probbly lots. Unfortunately, to implement a realistic fap you need to have both elements I mentioned - per user accounting, and per user traffic control - and you don't have this unless you've built your network to provide it, and going back to implement these things is disruptive and costly. Some may settle for traffic control at the noc where their bridged subscriber traffic is rate limited and throttled by a bandwidth arbitrator, but still it doesn't stop high rate traffic (port scanning viruses, anyone?) from getting into the network in the first place and doesn't provide nearly as effective limits as having it at the cpe side. Mike- ryan Spott wrote: Man o Man, that was 2 years ago and he STILL P***ES and moans about it! Due to this, I use a play nice policy. If I see some abnormal usage (and I get paged by my MRTG system) I simply cut the user off for a bit to break the bit-torrent session or I call the user. I tell them that they are on a shared system and that if they don't play nice then they can't play at all. Now, I have little to no competent competition so if the end user really wants to get mad then I let them out of their contract. My $.2(CAN) worth. -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] recommendation for Client POE integrated radio for 802.11b/g
Sounds like I'd want to stay away from YOU for the same reason... Brian Webster wrote: Id' like to stay away from YDI/Proxim just because of their attitude on the phone whenever I have dealt with them. -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] latest ATT filing - Done Deal
I just can't help but think that all these mergers and speedy, favorable rulings and the continued sellout of competition to att is little more than a reward for it's blatantely illegal cooperation in the warrantless wiretapping of the internet by the nsa. ATT was broken up for some very good reasons, and I see no reason to have allowed it's reassembly other than the fact that it's easier to deal with one big concern than thousands of little tiny ones when it comes to domestic spying Tom DeReggi wrote: The problem isn't the final negotiation of the final hour of the merger terms, as effort was put to add a few extras for consumers and competitors, to take attention off the fact that consumers just got screwed. The problem is that the merger was approved in the first place by the justice department in October. Today's deal closing was no surprise. But none the less one more tragic loss for competition. We all know any concession offered is pointless, when they can't be inforced, once a monopoly has taken over and is in control. Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Jack Unger [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Friday, December 29, 2006 5:43 PM Subject: Re: [WISPA] latest ATT filing - Done Deal Looks like it's a done deal. http://news.yahoo.com/s/ap/20061229/ap_on_bi_ge/att_bellsouth Should be interesting to see: 1. If ATT lives up to the terms of the deal. 2. If anybody watches to see if ATT lives up to the terms of the deal. 3. If there's any enforcement action when somebody (assuming somebody does watch) sees that ATT is not living up to the terms of the deal. 4. Who gets the 2.5 GHz spectrum. 5. What the competitive telecommunications/Internet landscape looks like 3 years from now. jack Jack Unger wrote: More comments... http://www.savetheinternet.com/=wu http://gigaom.com/2006/12/29/att-knows-when-to-fold-em/ http://www.lightreading.com/document.asp?doc_id=113531WT.svl=news1_3 http://news.com.com/ATT+offers+more+for+BellSouth+deal+approval/2100-1036_3-6146271.html?tag=nefd.top http://www.dslreports.com/shownews/80579 jack Jack Unger wrote: Here's a Beware the Fine Print comment... http://pulverblog.pulver.com/archives/006164.html jack Matt Liotta wrote: http://www.fcc.gov/ATT_FINALMergerCommitments12-28.pdf -- Jack Unger ([EMAIL PROTECTED]) - President, Ask-Wi.Com, Inc. Serving the License-Free Wireless Industry Since 1993 Author of the WISP Handbook - Deploying License-Free Wireless WANs True Vendor-Neutral WISP Consulting-Training-Troubleshooting Newsletters Downloadable from http://ask-wi.com/newsletters.html Phone (VoIP Over Broadband Wireless) 818-227-4220 www.ask-wi.com -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] StarOS or Microtik with TRCPQ clients...
Off the subject, but if you are a major operator then you are most certainly using cisco in your core, and eigrp is standard in cisco enviroments and makes sense if it's available to you. Like 802.1q and ISL - you could do 802.1q and interoperate, or just ISL and have the benefits of better across the board management and configuration flexibillity, at the cost of interoperabillity with non cisco gear. Personally I would go with cisco for everything if I could, but last time I checked, they don't have anything I can comfortablly install and run off solar power in low temprature enviroments Mike- Jeff Broadwick wrote: Hi Ryan, I realize this is somewhat tangential to your main point, but I wanted to point out that EIGRP/IGRP aren't standard protocols, nor will they work with any other router, necessarily. If you are shying away from proprietary equipment, Cisco's proprietary routing protocols are the last things you should be using. Regards, Jeff -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] StarOS or Microtik with TRCPQ clients...
Hi Jeff, Please don't get me started on imagestream... but anyways, the real stuff that really works - cisco - doesn't come in small form factor / extended temprature range and low power, is all I was saying. We use linux on Soekris with our own special blend (and 6mb) of linux for these jobs, so it's quagga and ospf and 802.1q (for actual routing) and no eigrp or isl for us. We don't try to do anything really fancy on any of the solar sites since power is at a premium and usually alls that's needed is little more than simple bridging at those locations while the heavy lifting is usually done from an AC powered site. Jeff Broadwick wrote: If you are seeking solutions for this sort of application, ImageStream can help: http://www.imagestream.com/Envoy.html -10C to =65C certification available http://www.imagestream.com/R1.html -20C to +70C 12/24 and 48 volt DC available. Regards, Jeff Mike- Jeff Broadwick wrote: Hi Ryan, I realize this is somewhat tangential to your main point, but I wanted to point out that EIGRP/IGRP aren't standard protocols, nor will they work with any other router, necessarily. If you are shying away from proprietary equipment, Cisco's proprietary routing protocols are the last things you should be using. Regards, Jeff -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] The WISP that walked away
An operator in my local area, covering a small area I would nevertheless like to have, recently just upped and walked away from his operation, leaving all cpe in place and some very confused customers who were told to go get cable or dsl. He was very short with me in email and indicated that the equipment was leased and that he had had enough with trying to scratch out something more than an avarage living and is glad to be rid of it and out of the business, and no further communication will be possible, end of story. Ethics question: Do I swoop in with my own backhaul and reactivate the system using the existing cpe units (mostly motorola, right up our alley), or do we build a new system from scratch and avoid these now defunct cpe's like the plauge? -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Most Common Questions for Tech Support Line ?
#1) IS THE INTERNET DOWN? A) No, but it sounds like you're having trouble... #2) IS THE INTERNET DOWN? (I just reinstalled my computer but that couldnt't be the problem...) A) No, but it sounds like your computer isn't set up correctly... #3) IS THE INTERNET DOWN? (The roofers just left, but I don't know what that would have to do with it, the screen says you're down and I want service credits now!) A) Hmm, it looks like your equipment has been destroyed and no longer registers with the service. Rick Smith wrote: If I were to build a script for my tech support phone answering, and share it with you all as an FAQ, what do you think the most common questions are, and how are they answered. Keep in mind, that I'm attempting to write a script, so to speak, for an operator to pick up the phone and cluefully help someone through wireless or hotspot problems in hotels... R -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Advanced Bandwidth Management
I'm with you jason - the subject of bandwidth management is an important one, and the fact is that new applications (crapplications?!) are appearing all the time which are pushing the business model into a tight spot. We have competing forces - on the one hand, we purchase expensive dedicated bandwidth, and on the other, we sell low cost shared bandwidth. We cannot sell for $34.95 what we pay $300 for. But yet we get customers who come to us and ask us to do exactly that. The days of the unmanaged bandwidth network are numbered, if they are not already at an end. There's certainly some solutions available for head-end bandwidth management - like the bandwidth arbitrator which was already mentioned - but the most effective management starts with subscriber side and _not allowing_ traffic flows that exceed that subscribers limits, into the network in the first place. The Arbitrator can only deal with it once it reaches your noc (or wherever else you've placed it), but this doesn't do anything for portscanning viruses or other traffic which would get dropped - but also would have also consumed your precious network resouces first before getting to that choke point. I'd really like to see an isp industry standardization effort on the subject of bandwidth subscription policies, something that we can present to customers as the uniform definition of what we provide in terms of bandwidth and allocation and priority and so forth that could then be used as a 'sticker' when shopping around for services Mike (the rambler) Jason wrote: List, Several times in the last few weeks the topic of bandwidth management has been discussed, but I Still Haven't Found What I'm Lookin' For... Here's what I'd like to do: 1. Each user starts with a big Internet Pipe. This way casual surfing and emails, etc. happen nice and snappy. 2. If a user downloads a big chunk of data, he needs to be shaped to a lower data rate after a few minutes (I'm thinking 2 or 3 minutes). 3. Step 2 repeats over and over several times if the user continues to download. 4. After the user quits hogging the network, his bandwidth is restored in stages (backwards of 2 and 3). I know this, or at least similar things to it, are being done out there. The HughesNet satellite FAP works something like this (I don't know the actual values): 1. Each user has a Bit Bucket that holds 1 Gig of bandwidth. 2. The Bit Bucket is replenished at 128k. 3. The speed at which the user can download from his bit bucket is 1meg. 4. If the user uses all the bits in his bucket faster than they are replenished, he eventually gets only 128k. Does anyone know how to get something like this going? I am especially interested in Linux/Ubuntu solutions. Jason -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Boeing Fails to Learn from WISPs
If you've ever been to Las Vegas, check out their monorail sometime and I think you'll see the same problem. AP'S and Amplifiers every 300' along the track, obviously the person(s) spec'ing it out, had no prior experience tis' a sad, sad story Mike- Marlon K. Schafer wrote: 200 lbs of aps and antennas How the hell is THAT possible? I'll bet all of my gear weighs in less than that and I've got 6000 square miles over coverage, not just one puny little airplane! Steve, do your old bosses need help over there or what? You need to go back to work for Boing! marlon -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Local WISP Fined by FCC ...
Are you saying that it was you who reported them to the FCC? If so, had you tried working it out with them first or ? Gino Villarini wrote: It's not clear at all if they have fully complied, the investigation was last summer were we started seeing interference problems on the site under investigation... the interference later disappeared go figure Gino A. Villarini [EMAIL PROTECTED] Aeronet Wireless Broadband Corp. tel 787.273.4143 fax 787.273.4145 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Low-cost Spectrum Analyzer
I have to agree. The spectran is a turd and in no way is useful for the purpose of detecting and identifying radio interference in the bands and at the power levels of interest to WISPS. Patrick Shoemaker wrote: I bought an HF-6080 last year when I first started my company. Basically, it was useless for me. I first noticed that it didn't seem to be showing noise that it should have been seeing, according to the spec-an built into a Canopy SM. I ended up testing it with a calibrated RF signal generator through its entire rated frequency range. The results were atrocious. Contacting Aaronia was no help whatsoever, even when I gave them the hard data showing that the unit was grossly inaccurate. Spend your money on a decent used spectrum analyzer on Ebay. The Aaronia is very portable and convenient to use, and the PC interface is nice, but a turd with nice features is still a turd. Patricks Jason Bunyea wrote: saw a google ad for these.. anyone used one ? http://test1.contenttest.net/Spektrumanalysator_en.shtml WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] mismarked phones
Hi All, I have numerous examples of cordless phones that all claim to be '2.4ghz' or '5.8' ghz, but in fact are 900mhz models. This is maddening and frusterating for subs on 900mhz systems such as trango and canopy as these interfere pretty bad with their service. This misleading labeling has also led to situations where subs have gone to get new phones, different manufacturer and models, and they also turn out to be 900, increasing customer frusteration and giving us a black eye. The fcc numbers on the phones give us the right information - it's the product packaging and product parkings on the phone and base station that are wrong. Isn't there something wrong with this? Aren't manufacturers of this stuff required to say '900mhz' if it's 900mhz and not misrepresent it as 5.8ghz when it's not? Would you like to see your advertisement here? Let the WISPA Board know your feelings about allowing advertisements on the free WISPA lists. The current Board is taking this under consideration at this time. We want to know your thoughts. -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Canopy snmp proxy
The most recently release of canopy software includes apparently a feature for snmp proxy, to reterive snmp values for sm's via the AP. Does anyone know which oid's we need to poll in order to get that info? I assume their prizm tool must do this too. Thanks. M WISPA Wants You! Join today! http://signup.wispa.org/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] DC power suggestions
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mac Dearman Sent: Wednesday, August 15, 2007 10:51 AM To: 'WISPA General List' Subject: RE: [WISPA] DC power suggestions Here is my question: Do they make a device that has multiple DC power output voltages (12/18/24/48) that connects directly to a set of batteries with the ability to connect multiple devices and if so - how do you keep your batteries charged? I would like to run my gear directly off the DC power instead of plugging everything into 120vdc and then have the wall warts convert to the DC power. I currently have 10 radios on top of the elevator and it is a major distribution point for the North and East legs of our network. Since you already have ups's in place, your problem sounds like simply that you didn't choose to use a model with battery packs. APC has models such as the 1400XL (or, for better effeciency, the 700XL if you won't be pulling lots and lots of juice) which will accept a daisy-chain of external battery packs, increasing the runtime considerably per each that you connect (up to some technical limit, but for your application I would think a full 24hrs and beyond would be within easy grasp, espically considering the reletively low power consumption of the gear you want to power). Better still, APC has cheap remote snmp mgmt cards for their units so you can a) know when the power is out, b) how long you have, and c) what the charge of the batteries are, so you can stay on top of it in case the outages go beyond what you had planned for. WISPA Wants You! Join today! http://signup.wispa.org/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
