Netzwerkkomponenten

When a server room is dissolved or a site is rebuilt, switches, routers, firewalls and access points are left over alongside servers. These network components look inconspicuous but often store sensitive information about your network. Before sale or disposal, they must therefore be handled as carefully as laptops.

Which network components there are

Device	Task	What is typically stored
Switch	Connects devices within a network	Configuration, VLANs, access credentials for administration
Router	Connects networks with each other, for example with the internet	Routing rules, VPN access, passwords
Firewall	Filters data traffic according to rules	Rule set, certificates, VPN keys, logs; partly with its own hard drive or SSD
Wi-Fi access point and controller	Provide the wireless network	Network names, Wi-Fi keys, access credentials
Transceivers and modules	Establish fiber-optic or copper connections	Generally no user data
Passive components	Patch panels, cables, cabinets	No data

Network components are often located together with rack servers in one cabinet and are decommissioned together when a server room is dismantled.

What to note when retiring devices

• Erase the configuration: A reset to factory settings, that is, a factory reset, removes only the active configuration, depending on the device. Backup files, certificates or logs in flash memory may remain. Check the manufacturer's information on which commands empty the memory completely.
• Mind the data carriers: Some firewalls, controllers and management systems contain hard drives or SSDs. These are erased with certification or destroyed like other data carriers.
• Release accounts and licenses: Cloud-managed devices are often tied to your company's account with the manufacturer. Remove them there before you hand them over. Otherwise a new owner cannot take them over.
• Documentation: Record the model and serial number of every device. This makes it possible to prove later what happened to which device.

Reuse of network equipment

Professional network equipment is designed for long service lives. Decommissioned devices are therefore often used further, for example as spare devices, in smaller networks or as a source of spare parts. The value depends, among other things, on the model, the manufacturer support, accessories such as power supplies and modules, and the condition. When support for a model expires, demand usually falls. More on this in the entry End of Support. What to consider when dismantling entire server rooms is shown by the entry Data center decommissioning and our guide sell used servers.

Network components at Second IT

Besides laptops, PCs and servers, Second IT also buys network equipment, for example from manufacturers such as Cisco. The basis is an inventory analysis with market valuation. Pickup is carried out with its own secure logistics: direct trip without intermediate storage, GPS monitoring and sealing. At goods receipt, every device is recorded by serial number and checked for storage media. Data carriers found are erased with Blancco or destroyed in-house according to DIN 66399. More about inventory analysis and market valuation.

Frequently asked questions about network components

Is it enough to reset a router to factory settings?

Not always. Depending on the device, the reset removes only the active configuration, while backups, certificates or logs remain in memory. Check the manufacturer's information and document the step.

Which network devices contain hard drives or SSDs?

Mainly larger firewalls, controllers, systems for logging and management, and some storage and monitoring devices. These data carriers need certified erasure or destruction.

Do used switches and routers still have value?

Often yes, especially for current models with ongoing manufacturer support. Model, condition, completeness and quantity are decisive. A valuation based on your device list provides clarity.

What data does a switch or router store?

Switches store configuration, VLANs and access credentials for administration. Routers store routing rules, VPN access and passwords. This information describes your network. That is why it must be removed before sale or disposal.

Why do I have to remove network devices from the manufacturer account before handing them over?

Cloud-managed devices are often tied to your company's account with the manufacturer. If the binding remains, a new owner cannot take over the device. Remove it there before you hand it over.