Opened 3 years ago

Closed 3 years ago

Last modified 5 weeks ago

#915 closed defect (fixed)

Packet loss on ietf-hotel

Reported by: furry13@… Owned by: ralfvin@…
Priority: tbd Milestone: ietf-092
Component: network Keywords:
Cc: My Current Location:
My MAC Address: My OS:

Description

Hi guys,

I'm in the North Tower, 14th floor (room 1421, close to the elevator).
For the last 3 evenings I'm seeing 30-50-70% packet loss on the
network (ietf-hotel).

ifconfig/netstat/ping to my default gateway attached (the file name
"furry_ping.txt").
Wireless info (BSSID etc) in the attached file "furry_ietf_hotel_room_wifi".

Data captured at ~19:40 local time today.

I have a tcpdump output as well (but I can not see anything
particularly interesting here), attached just in case
("furry-hotel-room.pcap").

Let me know if you need any other info.

Thanks!

-- 
SY, Jen Linkova aka Furry

furry_ping.txt

furry_ietf_hotel_room_wifi.png

furry-hotel-room.pcap

Attachments (4)

furry_ping.txt (5.2 KB) - added by furry13@… 3 years ago.
Added by email2trac
furry_ietf_hotel_room_wifi.png (64.0 KB) - added by furry13@… 3 years ago.
Added by email2trac
furry-hotel-room.pcap (1.1 MB) - added by furry13@… 3 years ago.
Added by email2trac
furry_bssid_1.png (75.6 KB) - added by furry13@… 3 years ago.
Added by email2trac

Download all attachments as: .zip

Change history (15)

Changed 3 years ago by furry13@…

Attachment: furry_ping.txt added

Added by email2trac

Changed 3 years ago by furry13@…

Added by email2trac

Changed 3 years ago by furry13@…

Attachment: furry-hotel-room.pcap added

Added by email2trac

comment:4 Changed 3 years ago by randy@…

jen, until this is debugged, you are welcome to work in noc.  apologies.
:(

randy

comment:5 Changed 3 years ago by llynch@…

Component: incomingnetwork
Owner: changed from llynch@… to nkukich@…
Status: newassigned
Type: requestdefect

hotel side

comment:6 Changed 3 years ago by ralfvin@…

Hi Jen,
The ietf-hotel SSID is being broadcast to the guest rooms over the hotel's wireless infrastructure. I suspect your guest room is not located close to one of the hotel access points and the poor signal quality (resulting in an MCS index 1) is affecting your wireless experience. This appears to be a classic case of an access point transmitting at high power (allowing you to see/hear it), but unable to adequately hear (receive) the transmissions from your radio. Unfortunately, there is little we can do other than suggesting you use the hard wired connection in your room or move to a room located closer to one of the hotel's access points.

comment:7 Changed 3 years ago by ralfvin@…

Owner: changed from nkukich@… to ralfvin@…
Status: assignedaccepted

comment:8 Changed 3 years ago by jim@…

Jen,

We've got the info we need and we'll work with the hotel to check if the guest room AP you're associating with is having trouble. As Rick mentioned, you may simply be in a bad coverage area, but we'll double check to make sure it's not an infrastructure issue.

Sorry for the delay on jumping on this...

  • Jim

comment:9 Changed 3 years ago by ralfvin@…

Hi Jen,
The hotel just notified us that they identified and repaired a cabling problem to the access point you were associating to. Try to connect again and let us know if the problem has been resolved. I apologize for the delay in resolving this issue.
Thanks,
-Rick

comment:10 Changed 3 years ago by furry13@…

On Thu, Mar 26, 2015 at 4:07 PM, IETF Meeting/NOC
<tickets@meeting.ietf.org> wrote:
>  The hotel just notified us that they identified and repaired a cabling
>  problem to the access point you were associating to. Try to connect again
>  and let us know if the problem has been resolved. I apologize for the
>  delay in resolving this issue.

Thank you very much, I'll test later today!
Your help with it is highly appreciated!

-- 
SY, Jen Linkova aka Furry

comment:11 Changed 3 years ago by furry13@…

On Thu, Mar 26, 2015 at 4:07 PM, IETF Meeting/NOC
<tickets@meeting.ietf.org> wrote:
>  The hotel just notified us that they identified and repaired a cabling
>  problem to the access point you were associating to. Try to connect again
>  and let us know if the problem has been resolved. I apologize for the
>  delay in resolving this issue.

Interesting. The situation is slightly better now, but still far way
from being ideal:

--- 31.133.136.1 ping statistics ---
314 packets transmitted, 242 packets received, 22.9% packet loss
round-trip min/avg/max/stddev = 2.216/10.436/95.776/9.231 ms

--- 8.8.8.8 ping statistics ---
319 packets transmitted, 262 packets received, 17.9% packet loss
round-trip min/avg/max/stddev = 8.445/19.409/289.705/28.016 ms

Not sure if it's the same AP or not (BSSID and wireless-related other
info attached).

I'm flying tomorrow morning so will be using the network in my room
for one more evening only.
Probably spending time on tracking the issue down just is not worth it...
I really appreciate your efforts!

-- 
SY, Jen Linkova aka Furry

furry_bssid_1.png

Changed 3 years ago by furry13@…

Attachment: furry_bssid_1.png added

Added by email2trac

comment:12 Changed 3 years ago by ralfvin@…

Hi Jen,
Based on the BSSID you reported you're connecting to a different AP. If you have a chance, please turn your Wi-Fi off and back on when you are in your room and see if that makes a difference. You may be holding on to a connection to a distant radio and not roaming effectively. Let me know if this makes a difference.
Thanks,
-Rick

comment:13 Changed 3 years ago by ralfvin@…

Resolution: fixed
Status: acceptedclosed

Hi Jen,
I am going to go ahead and close out this ticket. If there is anything we can do to help please don't hesitate to contact us.

comment:14 Changed 5 weeks ago by Rick Alfvin

Milestone: ietf-92ietf-092

Milestone renamed

Note: See TracTickets for help on using tickets.