New post from Sarah Chen on ignaonline.com:

Spanning Tree Protocol (STP) and RSTP on Cisco IOS-XE: Configuration, Troubleshooting, and Best Practices

STP and RSTP on Cisco IOS-XE explained in depth — root bridge placement, PortFast, BPDU Guard, Root Guard, Loop Guard, and a step-by-step troubleshooting workflow with real CLI command output. Written by Sarah Chen.

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