[ietf83-tech] Wireless unstable/unusable
Chris Elliott
chelliot at pobox.com
Sun Mar 25 08:14:03 PDT 2012
Laurent,
Sorry that I missed your call. I did not have Jim's phone on ring.
Thanks!
Chris.
On Sun, Mar 25, 2012 at 4:58 PM, Chris Elliott <chelliot at pobox.com> wrote:
> Laurent,
>
> Please call me at Jim's number when you are available: +33 6 81 55 83 70
>
> Thanks!
> Chris.
>
> On Sun, Mar 25, 2012 at 4:00 PM, Chris Elliott <chelliot at pobox.com> wrote:
>
>> On Sun, Mar 25, 2012 at 3:13 PM, BREUGNOT Laurent <
>> lbreugnot at louvre-hotels.com> wrote:
>>
>>> Hi Chris,
>>>
>>> I'm a bit worried by your comment, we usually don't have a lot of
>>> complaints about the wireless, even if we know it's not optimal.
>>>
>>
>> Unfortunately, we are not the usual crowd, and this is why we try to head
>> off issues before they happen. And, as we discussed Friday, we were
>> concerned that the wireless network would not hold up to this crowd. And
>> last night strongly indicated that the wireless is not usable much of the
>> time.
>>
>>
>>> We currently have around 180 non-ietf guests on the hotel wireless, we
>>> often reach 300 without problem.
>>>
>>
>> Our IETF room block has at least 428 reservations (that was from 11 days
>> ago), plus an unknown number of attendees that reserved through other
>> methods. My guess is that there are in excess of 500 rooms reserved to IETF
>> attendees. And, as we know, our attendees are not typical users of the
>> Internet. We use more varied protocols, our load is heaver, and we tend to
>> have more devices using the network wirelessly than the typical hotel guest.
>>
>>
>>> FYI there are some electrical issue on the top floors (28 to 33) since
>>> friday night, the APs and switches on these floors are currently down. The
>>> technical team of the hotel is aware of the issue and is trying to solve it.
>>>
>>
>> Great. Thanks for letting us know.
>>
>> However, the problems we saw were on different floors--most of the folks
>> we've been talking to have been on floors 3, 4, and 5. I'll try to identify
>> room numbers of folks having issues.
>>
>>
>>> I wont' be back before 5pm, we can talk then if you wish.
>>>
>>
>> Please. I'd love to have a meeting with you and Jim Martin to discuss
>> what we can do from here.
>>
>>
>>> In the meantime, have you some more detailed information on the problem
>>> you've encountered ?
>>>
>>
>> We are seeing high rates of packet loss (10-70%), and extremely variable
>> delays--pings varying from 4ms (good) to in excess of 1800ms.
>>
>> We are seeing very low utilization on the link between your network and
>> our's--a peak of about 16Mbits/sec. and an average of about 4Mbits/sec from
>> us to you, and and peak of about 4Mbits/sec. and an average of about
>> 2Mbits/sec. from you to us. As you saw when I plugged directly into your
>> switch, we were able to transfer in excess of 300Mbits/sec. over the link,
>> with just a few receive buffer errors. So, my impression is that the
>> wireless side is our bottleneck.
>>
>> I'm going to try to do a bit of analysis of the wireless spectrum and do
>> some additional informal testing before we meet.
>>
>> Thanks!
>> Chris.
>>
>>
>>> Regards,
>>>
>>> Laurent Breugnot
>>>
>>>
>>> Le 25 mars 2012 à 10:33, "Chris Elliott" <chelliot at pobox.com> a écrit :
>>>
>>> Laurent,
>>>
>>> Performance in the hotel wireless became unusable last night, especially
>>> on the guest room floors.
>>>
>>> With many of our attendees staying in the Concorde still to check in,
>>> most today, I think we are assured of an even worse situation tonight and
>>> later.
>>>
>>> Can we meet at 3pm to discuss options?
>>>
>>> Thanks!
>>> Chris.
>>>
>>>
>>> --
>>> Chris Elliott
>>> CCIE # 2013
>>>
>>> “You and I are mirages that perceive themselves”
>>> --Douglas Hofstadter
>>>
>>> On Mar 23, 2012, at 3:23 PM, "BREUGNOT Laurent" <
>>> lbreugnot at louvre-hotels.com> wrote:
>>>
>>> > ok I'll be there at 15h35.
>>> >
>>> > Cordialement,
>>> >
>>> > Laurent BREUGNOT
>>> > Service Informatique
>>> > Tel. +33 (0) 1 40 68 53 51
>>> > Fax +33 (0) 1 40 68 53 70
>>> >
>>> > <https://www.louvre-hotels.fr/FR/ImagesContenu/sign/signature_LH.jpg>
>>> >
>>> > ________________________________
>>> >
>>> > De: chelliot at gmail.com de la part de Chris Elliott
>>> > Date: ven. 23/03/2012 15:20
>>> > À: BREUGNOT Laurent
>>> > Objet : Re: Bandwidth test
>>> >
>>> >
>>> > Laurent,
>>> >
>>> > I tested from my room, as well as from the lobby. I saw variable
>>> performance, including dropped packets.
>>> >
>>> > The link is solid from my side--would you verify what the HP switch is
>>> seeing on the link?
>>> >
>>> > I connected to the same subnet on this side and saw very good
>>> performance, as can be seen here:
>>> >
>>> > http://www.speedtest.net/result/1851471517.png
>>> >
>>> > I don't expect to see this performance, obviously, on wireless, but I
>>> do expect to see fairly consistent performance.
>>> >
>>> > I will come back over to the hotel with my laptop, with more test
>>> tools. Can I meet you in the lobby?
>>> >
>>> > Thanks.
>>> > Chris.
>>> >
>>> >
>>> > On Fri, Mar 23, 2012 at 3:05 PM, BREUGNOT Laurent <
>>> lbreugnot at louvre-hotels.com> wrote:
>>> >
>>> >
>>> > Hey again,
>>> >
>>> > Just made a connection test from my office where I'm very far away
>>> from the AP, the result is pretty correct:
>>> > 5Mb dowbnload and 9Mb upload.
>>> > Any update on your side ?
>>> >
>>> >
>>> > Regards,
>>> >
>>> > Laurent BREUGNOT
>>> > Service Informatique
>>> > Tel. +33 (0) 1 40 68 53 51
>>> > Fax +33 (0) 1 40 68 53 70
>>> >
>>> >
>>> > <
>>> https://www.louvre-hotels.fr/FR/ImagesContenu/sign/signature_LH.jpg>
>>> >
>>> > ________________________________
>>> >
>>> > De: Chris Elliott de la part de Chris Elliott
>>> > Date: ven. 23/03/2012 09:44
>>> > À: BREUGNOT Laurent
>>> > Cc: ietf83-tech at daedelus.com
>>> > Objet : Re: Optical Fiber
>>> >
>>> >
>>> > On Mar 23, 2012, at 9:39 AM, "BREUGNOT Laurent" <
>>> lbreugnot at louvre-hotels.com> wrote:
>>> >
>>> >
>>> >
>>> > Hello Chris,
>>> >
>>> >
>>> >
>>> > Any success with the optical fiber yesterday ?
>>> >
>>> >
>>> > No.
>>> >
>>> >
>>> >
>>> >
>>> > According to the hotel, the link has been installed by the
>>> Palais des Congrès.
>>> >
>>> > Did you talk to them about this issue ?
>>> >
>>> >
>>> > Yes, and I will talk to them again.
>>> >
>>> >
>>> >
>>> >
>>> > Regards,
>>> >
>>> >
>>> >
>>> > Laurent BREUGNOT
>>> >
>>> > Service Informatique
>>> >
>>> > Tel. +33 (0) 1 40 68 53 51
>>> >
>>> > Fax +33 (0) 1 40 68 53 70
>>> >
>>> > <image001.png>
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > --
>>> > Chris Elliott
>>> > chelliot at pobox.com
>>> >
>>> >
>>> > <winmail.dat>
>>>
>>>
>>
>>
>> --
>> Chris Elliott
>> chelliot at pobox.com
>>
>>
>
>
> --
> Chris Elliott
> chelliot at pobox.com
>
>
--
Chris Elliott
chelliot at pobox.com
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