core Switch Routing Issue After Firmware Upgrade (MS → IOS XE)
After upgrading a Cisco Meraki core switch from MS 17.2.2 to IOS XE 17.15.5, we experienced a production outage. 🔹 Impact: Escalated to Cisco Meraki Support for investigation and
configuration under interfaces lost after reboot ( stackwise virtual
I am in the deployment of a pair of C9407 configured in SVL but intermittently when restarting one of the boxes occurs to remove some interfaces from the Port-channel gave one of the
Troubleshooting Common Issues When Saving Configs on Cisco
Imagine configuring an access control list (ACL) to secure your network and discovering that the changes were not fully saved after a reboot. This can be frustrating and may leave your
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
Multiple Cisco switches reverting back to old configs, losing vlan
Unfortunately, we took over right after they made the changes so we don''t know much of what they did, and they turned over zero documentation. The issue is that randomly, it seems, the switches will
Cisco Switch Losing Configs
Did all the switches lose their configs at or near the same time? Could someone have done an “express setup” on those devices, either by pressing the reset buttons, or a boot
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
x450e-48p Loses config after power loss
I loses the config for vlans after powerloss and i have to connect via seriel again and config web managment and do everything all over again. Is there any solutions for my issues or is
Network Switch Troubleshooting Guide: Common Problems and
A comprehensive switch troubleshooting from the physical layer to the data link layer to the network layer to find out why your network switch is not working.
Troubleshooting Cisco Configuration Saving Issues | NSC
But what happens when things don''t go as planned? Typically, administrators should be able to save configurations using the ''copy running-config startup-config'' command. However, when
Solved: Switch lost configuration... Is there any way to configure it
I have a 2960 that bounced several times over the weekend and then appears to have lost its configuration. Using CDP from the backbone switch pulls up the information below. Is there any
serenalindquist99/server-core-switch-lab
🧠 Server/Core Switch Replacement Lab This lab simulates a real-world enterprise network upgrade involving the replacement and configuration of core switches, port migration, ACL deployment, and
CBS 350 Switch loses partial configuration after power failure
The running configuration will be lost after a power failure. If you make any configuration changes and you want them to be preserved after a switch restart, make sure you save that
VLANs disappear and connectivity is lost due to the addition of a new
The other switches adopt its VLAN configuration. The VLAN configuration of the new switch does not match the other switches. Since the new addition has the highest config revision
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 switches with 10G and 1G backup links -
Troubleshooting Common Issues When Saving Configs on Cisco Switches
In conclusion, while challenges in saving configurations on Cisco switches vary, systematically addressing issues like syntax errors, encryption management, and file permission
Cisco Switch Losing Configs
Hello Guys, I have a weird issue. 9 Cisco switches in a site loses all their configurations. I configured them 3 months ago, did ''wr'' in all and they have been operating perfectly. Site reported
Core layer | FortiSwitch 7.6.0 | Fortinet Document Library
The core layer is critical, yet very simple to design, and allows for network evolution quite easily. Point-to-point links are used between each element, and Fortinet recommends using the MCLAG and dual
Related Video Reference
This video was associated with the source search result. Verify technical details against current product documentation and project requirements.
This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.