Re: [WIRELESS-LAN] [External] Re: [WIRELESS-LAN] Anyone else seeing any issues in the fall with large classrooms and delayed connection times (Aruba 8.5.0.13)

2021-09-03 Thread Kenny, Eric
Hi Chad, We have an 8 node cluster with roughly 3,500 to 4,000 users on each node. In this case “users” really means IP addresses the way they get counted. So in a dual IPv4/IPv6 stack client environment, a single user may show up as 3 “users” with the IPv4 address, IPv6 link local, and

Status of Wi-Fi 6 Client Drivers?

2020-09-23 Thread Kenny, Eric
Hi All, I know on-campus populations might not be what they usually are right now, but I was wondering if anyone has seen reports of buggy client side drivers causing issues with 802.11ax. Specifically we are using the Aruba AP-530 series AP. There were some Intel chips that had challenges a

Re: [WIRELESS-LAN] Upcoming joint CommTech / NetMan / NetWireless virtual sessions | Action required

2020-09-16 Thread Kenny, Eric
Hi All, I’d like to follow up on this request for proposals for our joint session. We have less than 2 weeks left so we’d like to get any ideas in before then. Some ideas might be: - Wireless augmentation due to COVID-19 “lockdown” restrictions - Contact tracing using your infrastructure

Re: [WIRELESS-LAN] Doodle Poll Results for Virtual Session - Covid-19 Response -> Friday April 17 (3 pm Easter, 12 pm Pacific)

2020-04-17 Thread Kenny, Eric
Hi WIRELESS-LAN, Big thanks to Mike Ferguson for helping put all of this together. For this afternoon’s virtual meetup, we’ve prepared an Agenda, which you’ll see is pretty informal as most of what we discuss will be based on the flow of conversation:

Re: [WIRELESS-LAN] WLC & ISE combo issues

2019-10-09 Thread Kenny, Eric
Hi Mathieu, One thing you might want to verify is that the RADIUS timeout values match in both the WLCs and in ISE. If these values differ, you may end up in a situation like this where one side gives up and the other side is not aware. --- Eric Kenny Network

Re: [WIRELESS-LAN] Aruba Wi-Gi 6 APs

2019-09-06 Thread Kenny, Eric
Hi Chris, We’ve got a couple 530 series APs deployed for testing. On a smart rate port, they negotiate to 5 Gb/s. We have a new area of campus going live soon that will have around 800 of the 535/534 APs. If you’re looking to deploy them, keep an eye on your PoE budget as these won’t

Re: EDUCAUSE Annual Conference - Presentation Topics

2019-08-20 Thread Kenny, Eric
ssion with informal conversations into the evening. Thank you, --- Eric Kenny Network Architect Harvard University --- > On Jul 24, 2019, at 2:48 PM, Kenny, Eric wrote: > > This year we are planning on combining the two sessions b

Re: [WIRELESS-LAN] 802.11R

2018-08-28 Thread Kenny, Eric
Hi Rick, We had enabled 802.11r on our WiSM2s but had to disable it due to limitations with the PMK cache size. Cisco’s site says the 8540 has a PMK cache limit of 64,000. The site also says the WiSM2 has a limit of 30,000, but see bug CSCvg15595 because it is actually 15,000. I’m not sure

Re: [WIRELESS-LAN] Cisco - Field Notice - 70253 - Wireless Client Fails to Associate: AID Error

2018-08-23 Thread Kenny, Eric
We were hit with the AID bug around this time last year on an 8.3 release. At the time the bug was a Sev 2 with Cisco. They provided an engineering release which we ran until the issue was finally resolved in later code. More proof that QA in large environments is lacking, to say the least.

Re: [WIRELESS-LAN] Aruba Clearpass Guest Portal

2018-06-04 Thread Kenny, Eric
Hi Patrick, We are using the guest portal for self-registered and sponsored guest access. What part did you need help with? --- Eric Kenny Network Architect Harvard University IT --- > On Jun 4, 2018, at 9:39 AM, Patrick

Re: [WIRELESS-LAN] Handling Wifi Deauth Attacks

2018-04-11 Thread Kenny, Eric
e your being ignored and given the run around - in my case there > was no followup, just an FCC field van show up and then a clean spectrum > shortly thereafter. If you provide the above link in your complaint and > inform them that you believe you're impacted by the clarification provided

Handling Wifi Deauth Attacks

2018-04-03 Thread Kenny, Eric
While investigating some “wifi is slow” and “wifi is dropping” complaints, we noticed deauth/disassociation flooding attacks reported by our wireless IDS. So far I’ve been able to identity a small percentage of these as local businesses and other local (non-university affiliated)

Re: [WIRELESS-LAN] Aruba 8.0

2018-03-14 Thread Kenny, Eric
Hi Chad, We’ve been running 8.x for almost a year and have certainly hit a fair share of issues. We are currently on 8.2.0.2 which has been running since it was released. Myf advice is that you might have better luck using the CLI rather than the web GUI to make configuration changes. Some

Re: [WIRELESS-LAN] gaming on wireless

2018-03-08 Thread Kenny, Eric
y > University of Massachusetts Amherst > 413-545-9639 > michael.dick...@umass.edu > PGP: 0x16777D39 > > On Mar 8, 2018, at 1:28 PM, Kenny, Eric <eric_ke...@harvard.edu> wrote: > >> Hi Mike, >> >> Have you taken any RF readings or spectrum analysis i

Re: [WIRELESS-LAN] gaming on wireless

2018-03-08 Thread Kenny, Eric
Hi Mike, Have you taken any RF readings or spectrum analysis in the vicinity of the game console? How far away are the APs they are jumping between and what kinds of physical obstacles are between the AP and the Playstation? Last question, have you noticed if the Playstation is using the 2.4

Re: [WIRELESS-LAN] EIGRP equal cost load balancing over wireless bridges

2018-02-28 Thread Kenny, Eric
Hi Mark, Have you tried both links individually? If they are different vendors, one might be handling MTU differently, which might upset your CAPWAP tunnels. Just a thought. Thanks, --- Eric Kenny Network Architect Harvard University IT

Re: [WIRELESS-LAN] Getting to the on-boarding Tool

2018-02-21 Thread Kenny, Eric
Hi Charles, We don’t have a dedicated SSID for on boarding anymore, as we have found issues with devices that tend to continue latching on to it. That function has been consolidated into our open SSID, so if a device is not registered, it automatically goes to the captive portal where the

Re: [WIRELESS-LAN] devices not connecting to open network

2018-01-12 Thread Kenny, Eric
Hi Rich, That is definitely the recommended approach, but it requires the devices to have wired network ports. In the case of the handheld Nintendo devices, they often do not. Thanks, Eric > On Jan 12, 2018, at 11:40 AM, Richard Nedwich > wrote: > > Question for

Re: [WIRELESS-LAN] Two RF Questions

2017-09-25 Thread Kenny, Eric
Hi Dave, I personally would not enable 40+ MHz wide channels without already having the UNII-2 channels enabled as it will cut down on your available channels. Also, stay away from any doppler radar frequencies used in Poughkeepsie ;-) -Eric Kenny > On Sep 25, 2017, at 3:16 PM, David Blahut