3Com Switch 4200G Configuration Guide

128 CHAPTER 20: MSTP CONFIGURATION
Configuration procedure (in system view)
Configuration procedure (in Ethernet port view)
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
Point-to-point
Link-Related
Configuration
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.
Table 96 Configure a port as an edge port (in system view)
Operation Command Description
Enter system view system-view —
Configure the specified
ports as edge ports
stp interface interface-list
edged-port enable
Required
By default, all the Ethernet ports of
a switch are non-edge ports.
Table 97 Configure a port as an edge port (in Ethernet port view)
Operation Command Description
Enter system view system-view —
Enter Ethernet port
view
interface interface-type
interface-number
—
Configure the port as
an edge port
stp edged-port enable Required
By default, all the Ethernet ports of a
switch are non-edge ports.