90Digest Snooping configuration exampleNetwork requirementsAs shown in Figure 24, Device A and Device B connect to Device C, which is a third-party device. Allthese 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 thethree devices can communicate with one another.Figure 24 Network diagramConfiguration procedure# Enable Digest Snooping on GigabitEthernet 1/0/1 of Device A and enable global Digest Snoopingon Device A. 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 Snoopingon Device B. 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-snoopingConfiguring No Agreement CheckIn RSTP and MSTP, the following types of messages are used for rapid state transition ondesignated ports:• Proposal—Sent by designated ports to request rapid transition• Agreement—Used to acknowledge rapid transition requestsDevice CRoot bridgeGE1/0/1 GE1/0/2GE1/0/1GE1/0/2GE1/0/1GE1/0/2Root portDesignated portNormal linkBlocked linkBlocked portDevice A Device BMST region
