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206 CHAPTER 8: STP OPERATION
Prerequisites
Switches of different manufacturers are interconnected in a network and have
MSTP properly employed. The network operates properly.
Configuration Procedure
Note the following:
■ You must enable digest snooping on an interface first before enabling it
globally.
■ Digest snooping is unnecessay if the interconnected switches are from the
same vendor.
■ To enable digest snooping, the interconneted switches must be configured
with the same settings.
■ To enable digest snooping, all interfaces in a MSTP domain used to connect
other switches must have digest snooping enabled.
■ Do not enable digest snooping on border interfaces of an MSTP domain.
■ To change domain configuration, be sure to disable digest snooping first to
prevent broadcast storm.
Table 217 Configure digest snooping
Operation Command Remark
Enter system view system-view -
Enter Ethernet
interface view
interface
interface_type
interface_num
interface_type: Interface type
interface_num: Interface number
Enable digest
snooping on the
interface
stp
config-digest-snoopin
g
Required. Digest snooping is disabled
by default
Quit Ethernet
interface view
quit -
Enable digest
snooping globally
stp
config-digest-snoopin
g
Required. Digest snooping is disabled
by default
Display current
configuration
information
display
current-configuration
This command can be executed in any
view