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 · 06-22-2026

Cold reboot (pull the power supplies for 30 seconds) the 9300.

Leo Laohoo · 06-22-2026

@JRDCisco wrote:Pre-Download the image to all the APs. - I think it does this in batches (16 APs at a time every 60 seconds) There is a way to "pre-download" the firmware to the AP and does not "stress" the WLC and the "limit" (16 APs at a time every...

Leo Laohoo · 06-21-2026

What is the exact model of the switch? I have already RMA-ed 12 x 9300X-48H in a span of 2 years. I currently have an EFA TAC Case to determine the cause of the failure because I have about 450 x 9300X-48H deployed.

Leo Laohoo · 06-21-2026

Post the boot-up of the switch.

Leo Laohoo · 06-19-2026

What is the budget for this exercise? If money is not a problem, then I'd go with a Catalyst 9610 with a Sup-3 supervisor card. For access switch, I'd go with 9350. NOTE: Still waiting for the 9400-Sup-3 announcement.

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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 9300 won't recognize sfps after reboot

Re: Upgrading 9800-L WLC

Re: C9300X dead, BOOT FAIL T

Re: Catalyst 3750 wont boot

Re: Recommendation for CORE and Access switch best design doc