3Com Switch 7750 Configuration Guide

Protection Function Configuration 267
Configuration example
# Enable the root guard function on Ethernet1/0/1 port.
1 Configure in system view.
<SW7750> system-view
[SW7750] stp interface ethernet1/0/1 root-protection
2 Configure in Ethernet port view.
<SW7750> system-view
[SW7750] interface ethernet1/0/1
[SW7750-Ethernet1/0/1] stp root-protection
Loop Guard
Configuration
Configuration prerequisites
MSTP is enabled on the current switch.
Configuration procedure
Configuration example
# Enable loop prevention function on Ethernet1/0/1 port.
1 Configure in system view.
<SW7750> system-view
System View: return to User View with Ctrl+Z.
[SW7750] stp interface ethernet1/0/1 loop-protection
2 Configure in Ethernet port view.
Table 200 Enable the root guard function in Ethernet port view
Operation Command Description
Enter system view system-view -
Enter Ethernet port
view
Interface interface-type
interface-number
-
Enable the root guard
function on current
port
stp root-protection Required
The root guard function is
disabled by default.
Table 201 Enable the Loop guard function in system view
Operation Command Description
Enter system view system-view -
Enable the loop guard
function on specified
ports
stp interface interface-list
loop-protection
Required
The loop prevention function is
disabled by default.
Table 202 Enable the Loop guard function in Ethernet port view
Operation Command Description
Enter system view system-view -
Enter Ethernet port
view
interface interface-type
interface-number
-
Enable the loop
prevention function on
the current port
stp loop-protection Required
The loop prevention function is
disabled by default.