Spanning-tree protocol is one of the oldest ways to ensure loop-free topology of an ethernet network. Why we need it, where we need it and how it works is the subject of today’s recap post.
Cisco VTP – the VLAN Trunking Protocol is a management tool for large L2 deployments. It provides a simple way to synchronize VLAN names and numbers across Cisco switching infrastructure, also automates some traffic optimizations (the VLAN pruning).
A quick recap: Virtual LANs and Trunking in Cisco Ethernet switches. There are different VLAN ranges, switchport modes and some ways to manage all that.