R0106-HP MSR Router Series Layer 2 - LAN Switching Configuration Guide(V7)

Configuration procedure

Enable the No Agreement Check feature on the root port.

To configure No Agreement Check:

Step Command Remarks

1. Enter system view.

system-view N/A

2. Enter Layer 2 Ethernet

interface view.

interface interface-type interface-number N/A

3. Enable No Agreement

Check.

stp no-agreement-check

By default, No Agreement

Check is disabled.

No Agreement Check configuration example

Network requirements

As shown in Figure 18:

• Device A connects to a third-party device that has a different spanning tree implementation. Both

devices are in the same region.

• The third-party device (Device B) is the regional root bridge, and Device A is the downstream

device.

Figure 18 Network diagram

Configuration procedure

# Enable No Agreement Check on GigabitEthernet 2/1/1 of Device A.

<DeviceA> system-view

[DeviceA] interface gigabitethernet 2/1/1

[DeviceA-GigabitEthernet2/1/1] stp no-agreement-check

Configuring protection functions

A spanning tree device supports the following protection functions:

• BPDU guard

• Root guard

• Loop guard

• Port role restriction

• TC-BPDU transmission restriction

• TC-BPDU guard