JAEN

Cisco IOS

show spanning-tree

SafeSpanning-tree state

show spanning-tree

Shows STP root and port roles (loop prevention).

Examples

  • show spanning-tree vlan 10STP for VLAN 10

Syntax

show spanning-tree [vlan <id>]

Before you run it

Read-only.

Used when you see

Suspected L2 loop
1
Check STP state and topology-change churn
See the whole flow →

Related commands

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