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Hi  I’m planning to upgrade a stack of Cisco C9300 switches and would like to ask if there’s a best practice or recommended approach for doing so. The customer has specifically asked whether it’s possible to perform the upgrade without any downtime.I...

here Putty record , I have two switch same issue . Booting...Interface GE 0 link down***ERROR: PHY link is downThe "IP_ADDR" environment variable is not set. Getting rest of imageReading full image into memory...Check base package header ...: done = ...

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...

Will below SFPSFP-10/25G-CSR-S - 10/25GBASE-CSR SFP28work with this moduleC9300-NM-8XThis module has eight 10 GE slots with an SFP+ port in each slot. Each port supports a 1 GE or 10 GE connection.Any combination of SFP and SFP+ modules are supported...

uppermost by Level 1
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  • 7 replies
  • 1 Helpful votes

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...

burleyman by Level 8
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  • 6 replies
  • 0 Helpful votes

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...

Hasaki by Level 1
  • 366 Views
  • 5 replies
  • 1 Helpful votes

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 ...

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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...

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milo34 by Level 1
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  • 5 replies
  • 0 Helpful votes