XS26GS Managed Optical Ethernet Switch User Manual
145
Description
Use
spanning-tree protocol-migration
command to enable the protocol
migration feature.
Use
no spanning-tree protocol-migration
command to disable the protocol
migration feature.
By default, the protocol migration feature is enabled.
Examples
XS(Ethernet0/1)#
no spanning-tree protocol-migration
Set default value false
spanning-tree edge
Syntax
spanning-tree edge
no
spanning-tree
edge
View
Ethernet port view
Parameters
None.
Description
Use
spanning-tree edge
command to configure the specified Ethernet ports as
edge ports.
Use
no spanning-tree edge
command to configure the specified Ethernet ports as
non-edge ports.
By default, all Ethernet ports of a switch are non-edge ports.
An edge port is directly connected to a user terminal instead of through another
switch or a network segment. Rapid transition to the forwarding state is applied to
edge ports because no loops can be incurred by network topology changes on these
ports. You can enable a port to turn to the forwarding state rapidly by setting it to an
edge port. And it is recommended to configure the Ethernet ports directly connected
to user terminals as edge ports.
Normally, configuration BPDUs cannot reach an edge port because the port is not
connected to another switch. But when the BPDU guard function is disabled on an
edge port, configuration BPDUs sent deliberately by a malicious user may reach the
port. If an edge port receives a BPDU, it turns into a non-edge port.
Examples
XS(Ethernet0/1)#
spanning-tree edge
Set successfully
spanning-tree mst-configuration
Syntax
spanning-tree mst-configuration