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FN - 72520 - Some Cisco DNA Center Appliances Shipped Between September 2022 and November 2022 Have Incorrect Firmware Installed - BIOS/Firmware Upgrade Recommended
Cisco 3850: IOS-XE/Firmware Upgrade
(Install Mode)
NOTE:
This procedure is aimed at Cisco 3850 switch ONLY.IOS-XE Bundle Mode is not covered. 9300, 9500 (vanilla & high-performance), ISR 1k, ISR 4k and ASR is not covered. Router(s) & switch(es) r...
NotesA Word from our Sponsors:Introduction:Section 1: General ProcedureSection 2: ROMMON UpgradeSection 3: Cellular Modem Firmware UpgradeSection 4: GOTCHA
Notes
This procedure is aimed at Cisco ISR 1k, ISR 4k and ASR 1k router ONLY.IOS-XE Bundle Mo...
@Alessandro Bellina wrote:Is a direct upgrade from IOS XE 16.12.4 to 17.15.6 officially supported? Or is it recommended upgrade to an intermediate release first?
Direct upgrade is supported.
@Alessandro Bellina wrote:What is the expected service ...
@M_Neman wrote:i want to know whether it can be phyiscal cabling issue or a BUG in IOS ?
This is a known bug: CSCvw97924 & CSCwd97177
Here are some examples of my captures of the bugs in action:
9300, IOS-XE version 17.9.4a(Above) Pair "A" distance...
What firmware is the switch on?
This is very important for two main reasons:
1. CSCvw97924 & CSCwd97177
2. This is a PoE switch. If TDR was done with PoE enabled, I will guarantee the results will be completely inaccurate and unreliable.
NOTE...