3Com 4200G 12-Port Configuration Manual page 142

128 C 20: MSTP C
HAPTER
Point-to-point
Link-Related
Configuration
ONFIGURATION
Configuration procedure (in system view)
Table 96 Configure a port as an edge port (in system view)
Operation
Enter system view
Configure the specified
ports as edge ports
Configuration procedure (in Ethernet port view)
Table 97 Configure a port as an edge port (in Ethernet port view)
Operation
Enter system view
Enter Ethernet port
view
Configure the port as
an edge port
On a switch with BPDU protection not enabled, an edge port becomes a non-edge
port again once it receives a BPDU from another port.
You are recommended to configure the Ethernet ports connected directly to terminals
as edge ports and enable the BPDU protection function as well. This not only enables
these ports to transit to forwarding state rapidly but also secures your network.
Configuration example
1 Configure GigabitEthernet1/0/1 port as an edge port.
Configure in system view.
■
<S4200G> system-view
System View: return to User View with Ctrl+Z.
[4200G] stp interface GigabitEthernet1/0/1 edged-port enable
Configure in Ethernet port view.
■
<S4200G> system-view
System View: return to User View with Ctrl+Z.
[4200G] interface GigabitEthernet1/0/1
[4200G-GigabitEthernet1/0/1] stp edged-port enable
A point-to-point link directly connects two switches. If the roles of the two ports at
the two ends of a point-to-point link meet certain criteria, the two ports can transit to
the forwarding state rapidly by exchanging synchronization packets, eliminating the
forwarding delay.
You can specify whether or not the link connected to a port is a point-to-point link in
one of the following two ways.
Command
system-view
stp interface interface-list
edged-port enable
Command
system-view
interface interface-type
interface-number
stp edged-port enable
Description
—
Required
By default, all the Ethernet ports of
a switch are non-edge ports.
Description
—
—
Required
By default, all the Ethernet ports of a
switch are non-edge ports.