Core Switch Backup Issues

LORRAIN SYSTEMS provides modular data centers, thermal containment, intelligent PDU, 800G transceivers, liquid cooling, AI interconnects, and edge networking solutions for sustaina...

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Dec 19, 2025

Core Switch Backup

Required help to take backup of core switch ( Cisco Nexus 7000 C7009 9 slot chassis)

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Jun 25, 2026

Backup Core switch

Hi Im managing a pretty basic cisco network and i am self taught so please bare with me. I have a layer 3 switch (3750G) running vlan1 and vlan 2

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Aug 08, 2025

U.S. News: Latest Breaking Stories and Video on

Get the latest news headlines and top stories from NBCNews . Find videos and news articles on the latest stories in the US.

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Jan 01, 2026

I totally fucked up our network core switch and everything is

I totally fucked up our network core switch and everything is down right now I''m just an apprentice and I don''t know what I''ve done wrong! We have a pair of Dell N3224P-ON switches and today''s morning

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Sep 30, 2025

I totally fucked up our network core switch and everything is

We have a pair of Dell N3224P-ON switches and today''s morning my colleague gave me a task and instructions to remove some unused VLANs. I''m sure I removed the correct VLANs. When I saved

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Feb 19, 2026

Cisco Switch Configuration Management Best Practices

Without a recent backup, the time and effort required to restore network functionality can escalate quickly, not to mention the potential financial

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Jul 04, 2025

Understand how to Backup and Restore Configuration Files

Use a TFTP Server to Backup and Restore a Configuration This is a step-by-step approach to copy a configuration from a router to a TFTP server, and back to another router.

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Dec 13, 2025

Help finding cause of core switch crash | Comware

Recently all 4 of our core switches model H3C S5820 crashed without warning, affecting network connectivity for 500 users. These switches are in an IRF stack.

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Dec 29, 2025

Core Switch Change

Hi all. We will be swapping our existing core switch for a new one and I want to get some verification that the procedure I have in mind is a good one to take. We currently have the following

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Nov 16, 2025

How to Backup and Restore Cisco Switch Configurations?

This professional guide provides actionable, step-by-step instructions for backing up and restoring Cisco switch configurations (covering popular platforms like Cisco IOS, IOS XE, and NX-OS) to ensure

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Sep 23, 2025

How to Backup and Restore Cisco Switch Configurations?

Learn how to backup and restore Cisco switch configurations (IOS, IOS XE, NX-OS) using CLI, TFTP/SCP, terminal emulation, and GUI. Step-by-step guidance to prevent downtime and ensure

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Jul 25, 2025

Troubleshooting Cisco Ethernet switch backup configuration issues

Use the following guidelines and suggested steps to help resolve Cisco Ethernet switch backup configuration issues.

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Sep 01, 2025

Solved: I cant Back up the Core Switch

Dear Sir, I try to recover my Cisco Core Switch 6506 from ROMmon mode using Boot command, after experiencing eletric/power problem. Suddenly I cannot back up the flash file from the

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Aug 05, 2025

Cisco Core Switch loses power, network loses it''s mind!

The switch was showing debug data consistent with a spanning tree issue on the ports that are used for wireless ap. (shockingly i noticed that there are no configurations for the interfaces

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Nov 30, 2025

Core switch replacement

I used an Aggregation switch, not as a core, but as a stand-alone for iSCSI traffic. It was purchased as a temporary switch because of equipment that required 10G connections prior to my

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Mar 15, 2026

Backup of Core Switch HP 2530 issue

Running the device.backup nning nfig, it connects to one of our core switches (HP 2530) and will complete the backup. However, when the backup is completed and I attempt to telnet into the switch,

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Feb 12, 2026

Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 6.x

You should back up the startup configuration to a server on a daily basis and prior to any changes. You could write a short script to run on Cisco NX-OS to perform a save and then a backup

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Nov 15, 2025

Core switch replacement

What "core switch" are you replacing? To what end? Is this a home install, or a business? Business - I have explained I''m not an expert but they have

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Aug 29, 2025

Redundant Core Switch

Hi guys, a good network design should have redundant / backup core switch. How about core switch that have dual controller and dual PSU, should i have an additional unit as backup (ex:

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Feb 21, 2026

Migrating to a new core switch/router?

Our new switch solution we''re doing has chassis for the core and then ToR switches in each rack with two 10Gb twinax connections going from each rack to the core switch. In the short

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Dec 12, 2025

Understand how to Backup and Restore Configuration Files

Switch to the HyperTerminal window and issue the configure terminal command at the Router # prompt. Then press Enter. Paste the configuration file into the router with Edit > Paste to

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Jul 19, 2025

No core backup before switching core to Nucleus+

Core Machine (Operating system/System info/Roon build number) OLD: Apple Air laptop NEW: Nucleus+ Network Details (Including networking gear model/manufacturer and if on

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Feb 13, 2026

Replacing core switch question? : r/meraki

Replacing core switch question? We are replacing our existing catalyst 4510R switch with 6 meraki ms250-48p switches. Currently we have a blade for each floor of our building and then 2 blades for

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Jan 15, 2026

Network Issues after Core Replacement : r/networking

We hired a company to recommend and install a new core switch for us. We ended up replacing our aging, grey-market 6509-E with a pair of 4500x series switches, stacked, and a 3850 to handle our

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Jun 15, 2026

Troubleshooting War Stories: Part 2

When I asked if they had a backup switch, he said it had been faulty for a while. Now the active core switch had suddenly failed, crippling the entire organization. The solution to reviving...

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Dec 14, 2025

Solved: Replace Core Switch

Hi I am wondering how most people go about this. If I was replacing a core switch, how would you guys recommend I migrate the config over. SSo would you 1) connect the new core to the

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Apr 19, 2026

Redundancy for Core Switch Stack : r/networking

So when one of the "new core" switches goes down, anything connected to it will still be offline. You can design around this by having redundant connections to the different "cores" and letting STP handle

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Feb 01, 2026

Solved: core switch redundancy

Hi, school with around 800 users having one core switch 6509-E sup-720 (inter-vlan routing) collapsed core design connected to - 30 layer 3 HP

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