3Com Switch 4800G 24-Port - Page 232

232 CHAPTER 23: MSTP CONFIGURATION
Prerequisites ■ A device is the upstream one that is connected to another vendor’s MSTP
supported device via a point-to-point link.
■ Configure the same region name, revision level and VLAN-to-instance
mappings on the two devices, making them in the same region.
Configuration Procedure Follow these steps to configure No Agreement Check:
n
The No Agreement Check feature can only take effect on the root port or
Alternate port after enabled.
Configuration Example Network requirements
■ Device A connects to a third-party’s device that has different MSTP
implementation. Both switches are in the same region.
■ Another vendor’s device is the regional root bridge, and Device A is the
downstream device.
Network diagram
Figure 61 No Agreement Check configuration
Configuration procedure
# Enable No Agreement Check on GigabitEthernet1/0/1 of Device A.
<DeviceA> system-view
[DeviceA] interface GigabitEthernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] stp no-agreement-check
To do… Use the command… Remarks
Enter system view system-view -
Enter Ethernet
interface or
port group
view
Enter Ethernet
interface view
interface interface-type
interface-number
Required
Use either command.
Configurations made in
Ethernet interface view will
take effect on the current
port only; configurations
made in port group view will
take effect on all ports in the
port group.
Enter port
group view
port-group { manual
port-group-name |
aggregation agg-id }
Enable No Agreement Check stp no-agreement-check Required
Not enabled by default
Root port
Designated port
GE1/0/1
GE1/0/1
Device A
Third-party switch