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Eric Glinsky

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Posted By Eric Glinsky 10-11-2024 03:13:25 PM
Found In Egroup: Wireless Local Area Networking
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Hello Cisco shops, While attempting to work around a different issue, I realized that the XOR Slot 2 radios in Cisco 9166s provide very slow throughput when in 5GHz mode when they've been up for a time. Throughput is as low as 30Mbps up and down in an empty room with a single client, while the ...
Posted By Eric Glinsky 10-11-2024 02:43:08 PM
Found In Egroup: Wireless Local Area Networking
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Thanks for bringing that up, Matt. Something I'll keep an eye on. As for the original topic at hand with 5 GHz radios on 9130/916x APs, that issue seems to be resolved now that we're on 17.12.4 / APSP2. After a full week without any AP reboots, even all the 5 GHz radios in our biggest lecture hall ...
Posted By Eric Glinsky 09-10-2024 03:12:32 PM
Found In Egroup: Wireless Local Area Networking
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Thanks for the update, Tim, glad to know that 17.12.4 may be worth the upgrade. Thought I'd let everyone know about this post on the Cisco forum: https://community.cisco.com/t5/wireless/9800-80-active-and-standby-configuration-out-of-sync-17-12-4/m-p/5192763/highlight/true#M275404 In case ...
Posted By Eric Glinsky 09-05-2024 12:11:23 PM
Found In Egroup: Wireless Local Area Networking
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Hi Tim, Yes, we're seeing that here. 9130/9166/9136 model APs after upgrading to 17.9.4a/APSP8 from 17.9.4 with no APSP. We got through the spring semester rebooting the affected APs every Mon, Wed, Fri early in the morning (recurring schedule via Prime). Now, we're on 17.9.5/APSP5, and it's affecting ...
Posted By Eric Glinsky 09-03-2024 02:56:32 PM
Found In Egroup: Wireless Local Area Networking
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Though central IT manages all aspects of the wired and WiFi infrastructure, we currently provide no game day support, in-person or on-call. This may soon change, at least for basketball games. We do have in-house Frontier technicians who are onsite during home football/basketball games for POTS lines. ...
Posted By Eric Glinsky 07-31-2024 04:40:09 PM
Found In Egroup: Wireless Local Area Networking
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I'm still seeing the false high channel utilization in 8.10.190.9. Tristan, you mentioned some outstanding situations with high channel utilization. What percent of APs are affected, and do you notice a trend with what channels they're on? The 112 and 124 still seem to be the most common even across ...
Posted By Eric Glinsky 07-31-2024 11:19:53 AM
Found In Egroup: Wireless Local Area Networking
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Hello, Would anyone who has experience with wireless (WiFi/cellular) in a large high-density sports venue be willing to share your experience outside the list, e.g. via a Teams meeting? Feel free to email me directly. Thanks, Eric Glinsky Wireless Service Manager University of Connecticut ...
Posted By Eric Glinsky 07-29-2024 12:54:47 PM
Found In Egroup: Wireless Local Area Networking
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Hi Chris, Yes, I upgraded to 8.10.196.0 at the end of June. The false channel utilization issue is not resolved, though I'm not sure about the resulting performance issue. I went onsite to one of the affected APs with a spectrum analyzer and all channels were mostly 0% utilized, meanwhile the AP (via ...
Posted By Eric Glinsky 07-17-2024 11:10:21 AM
Found In Egroup: Wireless Local Area Networking
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I would only consider getting rid of eduroam if we could get rid of authentication and just have a single, zero-trust WiFi network and be rid of RADIUS altogether (which will not happen here). Maybe we could just be an identity provider for our users off-campus and not provide the service on-campus (if ...
Posted By Eric Glinsky 06-27-2024 08:06:36 AM
Found In Egroup: Wireless Local Area Networking
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I thought someone mentioned the switch to the new "Connect" platform as a pain point, but I can't find that message to reply to now (or maybe I'm imagining it). Regardless, in case anyone wasn't aware, you can participate in the discussion fully by email, no need to log in to the online Connect platform. ...
Posted By Eric Glinsky 06-26-2024 11:20:50 AM
Found In Egroup: Wireless Local Area Networking
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Yeah, I remember a consensus on this group (and/or Cisco forums) to use Enabled or Disabled rather than Adaptive. To support this, check out the revised 9800 best practices guide: https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/technical-reference/c9800-best-practices.html#enabl ...
Posted By Eric Glinsky 06-26-2024 09:23:18 AM
Found In Egroup: Wireless Local Area Networking
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We've had 11r (and k and v) enabled on our 802.1x PEAP SSIDs for a couple years with good results. On the 9800, having "802.1x" in addition to "FT+802.1x" auth key management enabled proved necessary. We had several devices (Macs and PCs) that were unable to connect in the very first building that ...
Posted By Eric Glinsky 06-25-2024 02:21:45 PM
Found In Egroup: Wireless Local Area Networking
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Thank you for all your contributions to this listserv, Philippe, especially as they related to eduroam. Thank you, Jake, as well. I wonder where JJ Minella stands with this. I agree with others that this change in direction is concerning. Was there an announcement made on it? Eric Glinsky ...
Posted By Eric Glinsky 06-25-2024 10:38:59 AM
Found In Egroup: Network Management
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No security screws here, but only Facilities and contractors authorized by them or us have physical access to the BDF/IDF. Eric Glinsky Wireless Service Manager University of Connecticut
Posted By Eric Glinsky 06-19-2024 04:35:07 PM
Found In Egroup: Wireless Local Area Networking
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We have a few meshes using Cisco 1562D outdoor APs. They were pretty solid until an upgrade to 8.10.185.3 code required setting channel width down to 20MHz to maintain a connection beyond a few hours in our P2MP setup, and they still (as of 8.10.190.6) occasionally disconnect, sometimes never reconnecting ...
Posted By Eric Glinsky 06-13-2024 01:54:21 PM
Found In Egroup: Wireless Local Area Networking
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We have a captive portal with a disclaimer to accept with no information collected. Currently, the portal runs on a FortiGate firewall. The firewall essentially provides Internet-only access to the guest network and eduroam, with access to university resources as though off campus. The firewall is up ...
Posted By Eric Glinsky 05-28-2024 02:38:00 PM
Found In Egroup: Wireless Local Area Networking
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We experienced similar issues, including high CPU usage, once we broke several hundred APs on our 9800-80s. TAC determined in SR 696023827 that the WLC's SNMP input queue was filling up. We put the WLC in maintenance mode in Prime, which didn't help. Then we disabled polling in LogicMonitor (third-party ...
Posted By Eric Glinsky 05-24-2024 10:54:00 AM
Found In Egroup: Wireless Local Area Networking
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AireOSs 8.10.196.0 was recently released publicly. Its release notes do not specify that CSCwi92439 for 1815 5 GHz is resolved nor that it's still an issue. I opened SR 697378246 to inquire of the status and was initially told that that version was not released to the public, then that the release notes ...
Posted By Eric Glinsky 04-29-2024 03:21:00 PM
Found In Egroup: Wireless Local Area Networking
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Jon and Amel – Interesting, no mention of not supporting WPA3 SAE and 6 GHz from the sales engineer, the documentation I linked to, or the GUI. In fact, the GUI makes it seem like it is an option (see screenshot below), though I'm not able to test it currently. Maybe it's a mistake, they added the support ...
Posted By Eric Glinsky 04-29-2024 10:20:00 AM
Found In Egroup: Wireless Local Area Networking
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I'm wondering who else is using or considering using mPSK. What's the use case, just IoT, or any device? What equipment/software is involved? How do users obtain their PSK(s)? Do you maintain a separate .1x and guest network as well? How/when do PSKs expire? mPSK came up in a recent discussion with ...