Configuration Prerequisites; Configuration Procedure; No Agreement Check Configuration Example; Configuring Tc Snooping - H3C S7500E-X Configuration Manual

Configuration prerequisites

Before you configure the No Agreement Check feature, complete the following tasks:
•
Connect a device to a third-party upstream device that supports spanning tree protocols
through a point-to-point link.
•
Configure the same region name, revision level, and VLAN-to-instance mappings on the two
devices.

Configuration procedure

Enable the No Agreement Check feature on the root port.
To configure No Agreement Check:
Step
Enter system view.
1.
Enter Layer 2 Ethernet or
2.
aggregate interface view.
Enable No Agreement
3.
Check.

No Agreement Check configuration example

Network requirements
As shown in
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 27 Network diagram
GE1/0/1
Device A
Root port
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 TC Snooping

As shown in
•
Device A and Device B form the IRF fabric.
Command
system-view
interface interface-type interface-number
stp no-agreement-check
Figure 27, Device A connects to a third-party device that has a different spanning tree
GE1/0/1
Designated port
Figure 28, an IRF fabric connects to two user networks through double links.
Root bridge
Device B
92
Remarks
N/A
N/A
By default, No Agreement
Check is disabled.