Network Switch – Maintenance Inspection Procedure
Use the following procedures to verify network switch reliability, connectivity, and compliance with IT standards.
Configuration Backup
- Securely log into switch via SSH or console port
- Run command to export running configuration
- Save configuration file to approved backup repository
- Verify integrity of the exported file
- Document backup filename and date
Firmware Update
- Check current firmware version against vendor site
- Download latest verified firmware
- Schedule update during low-traffic maintenance window
- Apply firmware using approved method (CLI, GUI)
- Reboot switch if required and confirm successful update
Physical Inspection & Cleaning
- Verify rack mount is secure and labels are visible
- Use anti-static equipment when cleaning
- Clear dust from vents and fans with compressed air
- Inspect fiber/copper ports for damage or debris
- Ensure all ports are clearly labeled
Connectivity Testing
- Ping gateway and uplink devices to confirm connectivity
- Test bandwidth using standard tools (iperf, netcat)
- Check link status on each active port
- Verify spanning tree protocol state (STP/RSTP/MSTP)
- Test SNMP traps and syslog logging functions
System Resource Review
- Check CPU and memory utilization using CLI
- Review port error counters for excessive CRCs or collisions
- Verify temperature and fan speed metrics
- Document values and flag anomalies
Security Verification
- Confirm SSH access is enabled and password is encrypted
- Verify access-control lists (ACLs) are configured
- Test admin authentication against RADIUS or TACACS+
- Review SNMP strings and VLAN segmentation settings
- Log off and confirm session timeout settings