About brian.koomen

brian.koomen · 02-23-2024

Had to replace a couple ATA190 with ATA191 but running into a weird situation. The ATA191 are the enterprise version (ATA191-K9). We had one ATA191 that was showing the same behavior but for some unknown reason it ended up registering with CM.We al...

brian.koomen · 02-07-2024

Newbie here.....so keep this in mind when reading. We had a vendor setup our phone system in our company. The system was setup with two cisco 7000 servers. One being a Pub and the other the Sub. I was under the impression that if one of the serve...

brian.koomen · 04-13-2023

So we are replacing our 2960 and 2960x switches with the 9200-48p series.Before putting them into production, I was looking to update the IOS. However, if you been to the IOS update page there are quite a few versions available. In typical CISCO f...

brian.koomen · 02-10-2023

We are starting to migrate our 2960 and 2960x switches to the 9200 series.I was looking for some feedback/help.Questions/concerns I have:- is there documentation on migrating from a 2960 to a 9200 model?- I heard that QOS on the 9200 is different and...

brian.koomen · 09-27-2022

I understand that you need to have some initial license on these switches but what I don't understand is why our vendor is charging a support line item for the license. From what I have read the cost of the license cover the actual "license" and the...

brian.koomen · 05-30-2024

Ran into an issue with a class 4 device. If the switch was reloaded or power cycled with a Sophos 420e AP still plugged in, the AP would show insufficient power. I had to enter the following for the interface that the Sophos AP was connected to:pow...

brian.koomen · 05-08-2024

It works but after I reload the switch or power off/on the switch, my Sophos APs go back to "insufficient power"When looking at the config of the interface, I do not see the LLDP configurations I made. I enter the LLDP configurations again, and the...

brian.koomen · 04-26-2024

Your recommendation work for me as well. But does bring up the question of using the "power inline static" command. When I used that command, the port showed 30W being used.....but AP still showed insufficient power....Why doesn't the "static" comm...

brian.koomen · 02-23-2024

Thanks for your reply....On the first ATA190 replacement, I did try just changing the MAC on the ATA190....Then figured that was the problem. So then copied a working/registered ATA191 and entered the MAC of the new ATA191 and changed the phone # ti...

brian.koomen · 04-13-2023

To add to this..... What do companies do when they have to answer questionnaires about cyber insurance/PCI compliance and questions about over all security standards/protocols?I know one of the questions for cyber insurance and PCI compliance is abou...

Member Since	‎01-24-2013 12:28 PM
Date Last Visited	‎08-07-2024 01:09 AM
Posts	30
Total Helpful Votes Received	11

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replacing ATA190 with ATA191 and will not register

What is the purposes Publisher and Subscriber?

9200 series ios versions...... which one?

Migrating configuration from 2960 switch to 9200 switch

DNA essential licenses on Catalyst 9200 series switches.

Re: Enabling 802.3at at C9200L-24P-4X

Re: Enabling 802.3at at C9200L-24P-4X

Re: Enabling 802.3at at C9200L-24P-4X

Re: replacing ATA190 with ATA191 and will not register

Re: 9200 series ios versions...... which one?