Welcome to www.linknewnet.com.

New Products

Cisco Nexus 9000 Series Switch N9K-C92348GC-X
N9K-C92348GC-X
Cisco Nexus 9000 Series Switch N9K-C93600CD-GX
N9K-C93600CD-GX
Cisco Nexus 9000 Series Switch N9K-C9232E-B1
N9K-C9232E-B1
Cisco Nexus 9000 Series Switch N9K-C9396TX
N9K-C9396TX
Cisco Nexus 9000 Series Switch N9K-C9372TX
N9K-C9372TX

New Promotion

-8%
Cisco N3K-C3172PQ-Z8
N3K-C3172PQ-Z8
$750 $690
-40%
Cisco Nexus 9000 Series Switch N9K-C9332D-GX2B
N9K-C9332D-GX2B
$38000 $22800
-38%
Cisco Switch Catalyst 9500 Series C9500-40X-A
C9500-40X-A
$4000 $2500
-49%
Cisco Catalyst 9300 Series Switch C9300-24T-A
C9300-24T-A
$1750 $900
-31%
Cisco MDS 9200 Series Switch DS-C9250I-K9
DS-C9250I-K9
$1600 $1100

New Accessories

IR829-IP54-KIT= - Cisco IR829 Industrial Integrated Services Routers
IR829-IP54-KIT=
ASR-9010-2P-KIT - Cisco ASR 9000 Series Mounting Kit
ASR-9010-2P-KIT
ASR-9010-4P-KIT - Cisco ASR 9000 Series Mounting Kit
ASR-9010-4P-KIT
ASR-9001-2P-KIT - Cisco Router ASR 9001 Mounting Kit
ASR-9001-2P-KIT
ASR-9001-2P-L-KIT - Cisco Router ASR 9001 Mounting Kit
ASR-9001-2P-L-KIT

​IOS Upgrade Procedure for Cisco C9300L-48P-4G-E
Jun 03 , 2025 23

IOS Upgrade Procedure for Cisco C9300L-48P-4G-E

C9300L-48P-4G-E（水印）.png

Step 1: Pre-Upgrade Checklist

switch# show inventory | include PID  
PID: C9300L-48P-4G-E   VID: V05  SN: FCW1234ABCD  
switch# dir flash: | include bin  # Confirm free space >3GB

Step 2: Backup Current IOS

Primary backup via TFTP  
switch# copy flash:cat9k_iosxe.old.bin tftp://192.168.10.100/  

! Fallback to USB (if TFTP fails)  
switch# copy flash:cat9k_iosxe.old.bin usbflash0:

Step 3: Transfer New IOS

Use FTP for large files (enable FTP server first)  
switch(config)# ip ftp username admin  
switch(config)# ip ftp password ********  
switch# copy ftp://admin@192.168.10.100/cat9k_iosxe.new.bin flash:

Step 4: Configure Boot Paths

switch(config)# no boot system  # Clear old paths  
switch(config)# boot system flash:cat9k_iosxe.new.bin  
switch(config)# boot bootloader flash:cat9k_iosxe.old.bin

Post-Upgrade Validation

switch# show version | include RELEASE  
17.12.01a, RELEASE SOFTWARE (fc3)  # Confirm version  
switch# test poe module 1  # Validate PoE controllers
Tags: cisco Cisco switch

Related Blogs
more

Cisco Nexus N9K-C9372PX-E Switch Deep Dive
Jun 05 , 2025

Cisco Nexus N9K-C9372PX-E Switch Deep Dive

Cisco Nexus N9K-C9372PX-E Switch Deep Dive
Read more
Cisco Nexus N9K-C93180YC-EX Switch Configuration Guide
Jun 05 , 2025

Cisco Nexus N9K-C93180YC-EX Switch Configuration Guide

Cisco Nexus N9K-C93180YC-EX Switch Configuration Guide
Read more
​Cisco Nexus N9K-C9372TX-E Switch Configuration Guide
Jun 05 , 2025

​Cisco Nexus N9K-C9372TX-E Switch Configuration Guide

​Cisco Nexus N9K-C9372TX-E Switch Configuration Guide
Read more
Decoding the Nexus N9K-C9372TX
Jun 05 , 2025

Decoding the Nexus N9K-C9372TX

Decoding the Nexus N9K-C9372TX
Read more
Beyond the Spec Sheet: A Human-Centered Look at Cisco's N9K-C9372PX Switch
Jun 05 , 2025

Beyond the Spec Sheet: A Human-Centered Look at Cisco's N9K-C9372PX Switch

Beyond the Spec Sheet: A Human-Centered Look at Cisco's N9K-C9372PX Switch
Read more
Cisco Catalyst 2960 Series Switches Overview
Jul 05 , 2022

Cisco Catalyst 2960 Series Switches Overview

Cisco Catalyst 2960 series switches provide services for conventional office, branches, workspaces, medium-sized deployments and infrastructure networks. This series offers forwarding bandwidths up to 100-108 Gigabyte per second (Gbps) and switching bandwidth, which is full duplex up to 216 Gigabyte per second (Gbps). In addition, this series includes several other sub-series: Cisco 2960S, Cisco 2960X, Cisco 2960+, Cisco 2960L, and 2960XR.
Read more
How To Upgrade IOS On Cisco 3560 Switches?
Jul 05 , 2022

How To Upgrade IOS On Cisco 3560 Switches?

Do you want to upgrade Cisco 3560 switch IOS? It is very easy, you only need to do these 4 steps. Below are the details about how to do it.
Read more
WS-C2960C-12PC-L vs. WS-C2960L-24TS-LL: A Comprehensive Comparison for Modern Networks
May 23 , 2025

WS-C2960C-12PC-L vs. WS-C2960L-24TS-LL: A Comprehensive Comparison for Modern Networks

WS-C2960C-12PC-L vs. WS-C2960L-24TS-LL: A Comprehensive Comparison for Modern Networks
Read more
Top 9 Reasons for Network Switches Failure
Jul 05 , 2022

Top 9 Reasons for Network Switches Failure

The switch will inevitably encounter failures during normal use. Network switch failures can cause network downtime, affecting our business, production, and damage to our property, so we have to troubleshoot and repair the switch in the shortest possible time. Here we introduce you to the 9 common hardware and software failures of the switch.
Read more
What Are the 4 Types of Network Switches?
Jul 06 , 2022

What Are the 4 Types of Network Switches?

The Internet of Everything is inseparable from the essential network equipment - switches, which will play a vital role in the networking of the Internet of Things. Below is an introduction to four network switch architectures, their types include Cascade Connection,Port Aggregation,Stacking,Layered.
Read more
WhatsApp
Quote
Contact
Top