Understanding the default STP configuration

You should be familiar with STP defaults before you make configuration changes.

Table 1. Default STP configuration
Parameter	Default setting
Spanning-tree mode	By default, STP, RSTP, and MSTP are disabled
Bridge priority	32768
Bridge forward delay	15 seconds
Bridge maximum aging time	20 seconds
Error disable timeout timer	Disabled
Error disable timeout interval	300 seconds
Port-channel path cost	Standard
Bridge hello time	2 seconds

The following table lists the switch defaults for the interface-specific configuration.