Spanning Tree Protocol Configuration Guide, Cisco Catalyst IE9300 Rugged Series Switches

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Spanning Tree Protocol Configuration Guide, Cisco Catalyst IE9300 Rugged Series Switches

Default configuration

Updated: March 2, 2026

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This topic explains the default configuration settings for Spanning Tree features, including enable state, mode, priorities, port costs, and timers on Cisco devices.

This reference provides the default settings for Spanning Tree features on Cisco devices.

Table 1. Default Spanning Tree configuration settings
Feature	Default setting
Enable state	Enabled on VLAN 1
Spanning Tree mode	Rapid PVST+. PVST+ and MSTP are disabled.
Switch priority	32768
Spanning Tree port priority (configurable on a per-interface basis)	128
Spanning Tree port cost (configurable on a per-interface basis)	1000 Mb/s: 4 100 Mb/s: 19 10 Mb/s: 100
Spanning Tree VLAN port priority (configurable on a per-VLAN basis)	128
Spanning Tree VLAN port cost (configurable on a per-VLAN basis)	1000 Mb/s: 4 100 Mb/s: 19 10 Mb/s: 100
Spanning Tree timers	Hello time: 2 seconds Forward delay time: 15 seconds Maximum aging time: 20 seconds Transmit hold count: 6 BPDUs

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