Spanning-Tree Transmit-Hold-Count - Planet SGS-6341 Series Command Manual

Usage Guide:
According to MSTP, when topology changes, the port that send change message clears MAC/ARP
table (FLUSH). In fact it is not needed for some network environment to do FLUSH with every
topology change. At the same time, as a method to avoid network assault, we allow the network
administrator to configure FLUSH mode by the command
Note: For the complicated network, especially need to switch from one spanning tree branch to
another rapidly, the disable mode is not recommended.
Example:
Configure the spanning-tree flush mode once the topology change is not flush to TC.
Switch(config)#interface ethernet 1/0/2
Switch(Config-If-Ethernet1/0/2)#spanning-tree tcflush disable
Switch(Config-If-Ethernet1/0/2)#

14.1.31 spanning-tree transmit-hold-count

Command:
spanning-tree transmit-hold-count <tx-hold-count-value>
no spanning-tree transmit-hold-count
Function:
Set the max transmit-hold-count of port.
Parameter:
tx-hold-count-value: ranging from 1 to 20, the default value is 10.
Command mode:
Global Mode
Default:
10.
Usage Guide:
Set the max number for sending BPDU within the Hello Time interval to control BPDU flow. The
variable is used to whole MST bridge.
Example:
Set the max transmit-hold-count as 20.
Switch(config)#spanning-tree transmit-hold-count 20
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