About Johannes Luther

Johannes Luther · 05-08-2023

Hi ACI professionals,When we decommission a server in our ACI fabric, the fault F0546 is raised (Port is down, reason:sfpAbsent(connected), used by:Discovery). Decommissioning means:- Remove access interface port policy group from leaf interface => ...

Johannes Luther · 03-06-2023

Hi board,I want to use logging discriminators for certain syslog destinations (not for console or buffer logging). Currently my configuration is pretty simple service timestamps debug datetime msec localtime show-timezoneservice timestamps log dateti...

Johannes Luther · 12-11-2022

Hi wireless team, quick question: Is it possible to perform a C9800 ISSU upgrade without doing a staggered AP upgrade.In big WLC deployments, we have a scheduled downtime within a fixed time window. With staggered AP upgrades, the upgrade takes ages ...

Johannes Luther · 12-01-2022

Hi community, I'm using Catalyst switches and want to perform open mode (NAC monitor) mode using IBNS 2.0 configuration.The RADIUS server is a Cisco ISE. Switch ports: The ports are configured in open mode in the host-mode multi-auth.ISE: The default...

Johannes Luther · 11-08-2022

Hi ACI team, I want an overview which includes all switches in the fabric and the corresponding upgrade group.In the GUI (4.2) this is located in "Admin > Firmware > Infrastructure > Nodes".This includes a list of all switches with the current firmwa...

Johannes Luther · 03-08-2023

Not really... for RESTCONF I decided to use the HTTP ACL, because of one simple reason. I wanted to reuse an existing ACL, which has minush/dash in the name. Because of bug CSCvy24754, this was not supported (at least not in the former release I was ...

Johannes Luther · 03-06-2023

Hi BB, thank you for your answer. Regarding your questions: >> Can you post the syslog config ? Did it in my initial post. There is no specific syslog / logging config except the lines I posted above service timestamps debug datetime msec localtime s...

Johannes Luther · 02-15-2023

So I finally get it working on a 2960X. On the Catalyst 9300 I have a loop when applying an interface template via the ISE.My guess is I'm hitting the bugs CSCwd26360 Regardless of the bug, here are my finding and my personal summary: Interface templ...

Johannes Luther · 02-14-2023

Hi Arne,So, I'm working on this topic again. Regarding Multi-Host: The AP should be in a different VLAN as the clients ... So I guess this eliminates this option...

Johannes Luther · 01-19-2023

Hi @Arne Bier thank you for your reply. So my exact scenario is: Access switch port in closed mode with mode accessA client access specific interface template is configured on the ports (fixed): CLIENT-ACCESS-TEMPLATEThe switches (9300, 2960X) runs ...

Member Since	‎07-16-2008 11:57 PM
Date Last Visited	‎05-11-2023 12:47 AM
Posts	437
Total Helpful Votes Received	364

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User Activity

Decommissioned access port and fault F0546 (Port is down)

IOS Syslog: Weird prefix when using discriminator

9800 ISSU without staggered AP upgrade

Catalyst switches: Endless access-session for failed MAC addresses

ACI firmware upgrade group summary in the CLI / moquery

Re: Cat9k: HTTP server hardening / ACL

Re: IOS Syslog: Weird prefix when using discriminator

Re: Profiling FlexConnect AP and switch Interface Template

Re: Profiling FlexConnect AP and switch Interface Template

Re: Profiling FlexConnect AP and switch Interface Template