3Com 4210G Series - Configuring Protection Functions

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To do... Use the command... Remarks
Enter system view system-view
—
Enter Ethernet
interface view, or
Layer 2 aggregate
interface view
interface interface-type
interface-number
Enter
interface or
port group
view
Enter port group view
port-group manual
port-group-name
Required
Use either command.
Enable No Agreement Check stp no-agreement-check
Required
Disabled by default
No Agreement Check configuration example
1) Network requirements
z Device A connects to Device B, a third-party device that has different MSTP implementation. Both
devices are in the same region.
z Device B is the regional root bridge, and Device A is the downstream device.
Figure 4-9 No Agreement Check configuration
2) Configuration procedure
# Enable No Agreement Check on GigabitEthernet 1/0/1 of Device A.
<DeviceA> system-view
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] stp no-agreement-check
Configuring Protection Functions
An MSTP-enabled device supports the following protection functions:
z BPDU guard
z Root guard
z Loop guard
z TC-BPDU guard
z BPDU dropping
Among loop guard, root guard and edge port settings, only one function can take effect on a port at the
same time.