Digest Snooping Configuration Example; Configuring No Agreement Check - H3C S7500E-X Configuration Manual

Digest Snooping configuration example

Network requirements
As shown in
these devices are in the same region.
Enable Digest Snooping on the ports of Device A and Device B that connect to Device C, so that the
three devices can communicate with one another.
Figure 24 Network diagram
MST region
GE1/0/1
Device A
Configuration procedure
# Enable Digest Snooping on GigabitEthernet 1/0/1 of Device A and enable global Digest Snooping
on Device A.
<DeviceA> system-view
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] stp config-digest-snooping
[DeviceA-GigabitEthernet1/0/1] quit
[DeviceA] stp global config-digest-snooping
# Enable Digest Snooping on GigabitEthernet 1/0/1 of Device B and enable global Digest Snooping
on Device B.
<DeviceB> system-view
[DeviceB] interface gigabitethernet 1/0/1
[DeviceB-GigabitEthernet1/0/1] stp config-digest-snooping
[DeviceB-GigabitEthernet1/0/1] quit
[DeviceB] stp global config-digest-snooping

Configuring No Agreement Check

In RSTP and MSTP, the following types of messages are used for rapid state transition on
designated ports:
•
Proposal—Sent by designated ports to request rapid transition
•
Agreement—Used to acknowledge rapid transition requests
Figure 24, Device A and Device B connect to Device C, which is a third-party device. All
Device C
Root bridge
GE1/0/1 GE1/0/2
GE1/0/2 GE1/0/2
Device B
Root port
Designated port
Blocked port
Normal link
GE1/0/1
Blocked link
90