Brocade Communications Systems Converged Enhanced Ethernet 53-1002163-02 - Manual (Page 86)

64 Converged Enhanced Ethernet Administrator’s Guide
53-1002163-02
STP, RSTP, and MSTP configuration and management
7
DRAFT: BROCADE CONFIDENTIAL
Table 17 lists the switch defaults that apply only to MSTP configurations.
Table 18 lists the switch defaults for the 10-Gigabit Ethernet CEE interface-specific configuration.
STP, RSTP, and MSTP configuration and management
NOTE
You need to enter either the copy running-config startup-config command or the write memory
command to save your configuration changes to Flash so that they are not lost if there is a system
reload or power outage.
Enabling STP, RSTP, or MSTP
You enable STP to detect or avoid loops. STP is not required in a loop-free topology. You must turn
off one form of STP before turning on another form. By default, STP, RSTP, and MSTP are not
enabled.
To enable xSTP, perform the following steps from privileged EXEC mode.
1. Enter the configure terminal command to access global configuration mode.
2. Enter the protocol command to enable STP, RSTP, or MSTP.
TABLE 17 Default MSTP configuration
Parameter Default setting
Cisco interoperability Disabled
Switch priority (when mapping a VLAN to an
MSTP instance) 32768
Maximum hops 20 hops
Revision number 0
TABLE 18 Default 10-Gigabit Ethernet CEE interface-specific configuration
Parameter Default setting
Spanning tree Disabled on the interface
Automatic edge detection Disabled
Path cost 2000
Edge port Disabled
Guard root Disabled
Hello time 2 seconds
Link type Point-to-point
Port fast Disabled
Port priority 128
CEE interface root port Allow the CEE interface to become a root port.
CEE interface BPDU restriction Restriction is disabled