Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 398)

348 Brocade 6910 Ethernet Access Switch Configuration Guide
53-1002581-01
Spanning Tree Commands
18
spanning-tree link-type
This command configures the link type for Rapid Spanning Tree and Multiple Spanning Tree. Use
the no form to restore the default.
Syntax
spanning-tree link-type {auto | point-to-point | shared}
no spanning-tree link-type
auto - Automatically derived from the duplex mode setting.
point-to-point - Point-to-point link.
shared - Shared medium.
Default Setting
auto
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• Specify a point-to-point link if the interface can only be connected to exactly one other bridge,
or a shared link if it can be connected to two or more bridges.
• When automatic detection is selected, the switch derives the link type from the duplex mode. A
full-duplex interface is considered a point-to-point link, while a half-duplex interface is
assumed to be on a shared link.
• RSTP only works on point-to-point links between two bridges. If you designate a port as a
shared link, RSTP is forbidden. Since MSTP is an extension of RSTP, this same restriction
applies.
Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree link-type point-to-point
spanning-tree loopback-detection
This command enables the detection and response to Spanning Tree loopback BPDU packets on
the port. Use the no form to disable this feature.
Syntax
[no] spanning-tree loopback-detection
Default Setting
Enabled
Command Mode
Interface Configuration (Ethernet, Port Channel)