I am having issue with one of my desktops connected to my switch interface flipping between two MAC addresses (see the attached picture below for log). When I disconnect the desktop the IP and the MAC issues will not show in the log. I reimaged the ...
Hello all, I'm having a very strange issue with a 3rd party purchased 3850 WS-C3850-24XS stack. I am using the Mgmt-vrf to manage the switch and pings work when you source from that vrf. But pinging without the source of vrf doesn't work NOR does it ...
Hi , I have a switch 3750 stacked , I don't have IP-phone some of my links get up & down repeatedly (I see this in switches 2960 too) Jul 1 10:24:12.159: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/3, changed state to downJul 1 10:25:03.831: %LINK-3...
Catalyst 9300How to know decoder SKU for example : C9300-48UN U = UPOE N = ???
I am having trouble configuring the C1300 and Dell 6224 switch.On the Dell side, I received the following configuration:The assumption is that traffic in VLAN150 is tagged, and I have no problem with that. The problem is with VLAN1, which is supposed...
I have the following ACL configured and applied to the interfaces that have smart light controllers connected to them, and only want to allow them to talk to the cloud services. However, Im seeing them try to chat to IPs outside of the ACL, which gi...
Upgraded this morning from IOS-XE 17.12.03 -> 17.15.03 (C9300-48UXM). I am now getting these messages in the logs:Apr 18 2025 08:45:34.943 CST: %IOSXE-3-PLATFORM: Switch 1 R0/0: fed: Stealthwatch Cloud is not initialized.Please configure to use this ...
I am running a 4506 Catalyst switch and CatOS. Here is the output of the show boot command.OFF_4506_24 (enable) show bootBOOT variable = bootflash:cat4000-k8.7-6-3.bin,1;CONFIG_FILE variable = bootflash:switch.cfgConfiguration register is 0x2ignore-c...
I have a cisco stack of 8 switches connected at the moment.1 is the master as per show switch result *1 Master 0077.8d2a.8400 1 4 Ready2 Member 0077.8da8.1600 1 4 Ready3 Member 0077.8d2a.8b00 1 4 Ready4 Member 0077.8da8.1980 1 4 Ready5 Member 0077.8d...
My Catalyst C9200L-48P-4X is running extremely noisy—its PS1 fan spins constantly at ~22 900 RPM—and will not throttle down even though:Rack ambient is ~30 °C with proper front-to-back airflowAll unused ports are shut downPoE is disabled where not ne...
Hello everyone, I have an issue with my setup. I have two Cisco C9300X-48P switches running IOS version 17.12.9, configured in a stack. The problem is as follows:The switches are connected to servers via dual links (one from each switch), with LACP c...
Hello.After a small power failure, one of the Nexus 9k, after loading, began to reboot after 5 seconds and so on in a circle. I decided to reset the configuration via boot loader, as a result, now the system does not load, I did this at the start of ...
Hi,Does 9606 C9600X-SUP-2 support StackWise Virtual (QuadSup RPR) ?On Cisco web site it shows C9600X-SUP-2 support StackWise Virtual (QuadSup RPR).https://www.cisco.com/site/us/en/products/collateral/networking/switches/catalyst-9600-series-switches/...
Hello everyone,I hope everyone is doing well.I was looking at some q-in-q concepts and if anyone can tell me what i am doing wrong i would be forever grateful.Topology:SW1:interface GigabitEthernet1/0/8 switchport access vlan 1024 switchport mode acc...
I'm looking for confirmation of my thinking being correct, or corrections where wrong. Here is my situation: Large School District with construction nearing completion of a new building where the core of our network will be moved. Right now we have...
