About Leo Laohoo

Leo Laohoo · 12-20-2022

FN - 72520 - Some Cisco DNA Center Appliances Shipped Between September 2022 and November 2022 Have Incorrect Firmware Installed - BIOS/Firmware Upgrade Recommended

Leo Laohoo · 10-28-2022

Read the Release Notes very carefully and go with 17.6.4.

Leo Laohoo · 11-17-2021

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...

Leo Laohoo · 06-30-2021

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...

Leo Laohoo · 12-22-2020

Product Overview: Cisco Prime Infrastructure 3.9 Release Notes: Cisco Prime Infrastructure 3.9 Software Download: Cisco Prime Infrastructure 3.9 Oracle Patch: Cisco Prime Infrastructure 3.9

Leo Laohoo · 07-12-2026

Find an AP, trace it back to the switchport and do the following: conf t interface <PORT> speed 100 speed auto end Our controllers are on 17.12.6a and we have installed APSP 3 to fix CSCwp20385 & CSCwq11842. Our test controllers are on 17.15.4 ...

Leo Laohoo · 07-12-2026

Cisco is no longer able make any decent technical documentation.

Leo Laohoo · 07-11-2026

@S11000252 wrote:downstream port autometically admin down and due to this issue network is disturbed Google Translate issue. The next time this "admin down" occurs, post the complete output to the command "sh interface status err". I suspect the p...

Leo Laohoo · 07-10-2026

Finding easy-to-trigger bugs like this is going to get a lot easier and easier because Cisco do not peer-review nor perform any testing (of sort) with the codes being developed overseas. I have said this once and I'll say it again, "unexpected rebo...

Leo Laohoo · 07-10-2026

Script? I am hopeless at scripting. I use plain Excel "formulas". I put the name of the AP in one column and in another column the corresponding WLC commands are generated. I drop 300 to 400 lines into the controller.

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FN-72520 -Some Cisco DNA Center Appliances Have Incorrect Firmware

Re: Catalyst 9606r software version election

Cisco 3850: IOS-XE/Firmware Upgrade

Cisco ISR & ASR 1k Routers: IOS-XE/Firmware Upgrade (Install Mode)

Coming to a store near you: Cisco Prime Infrastructure 3.9

Re: Cisco AP 9124AX / 9130AX Losing IP Address

Re: switches and router's

Re: Cisco 2960G Switch fiber uplink port autometically admin down

Re: CSCws66419 - Unexpected Reload due Smart license activation

Re: Pre-Stage AP image before migration from 5520 to 9800