Accton Technology ES4626 - Manual (Page 235)

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Switch(Config-Ethernet-1/2)#
7.3.21 spanning-tree tcflush (global mode)
Command:spanning-tree tcflush enable
spanning-tree tcflush disable
spanning-tree tcflush protect
no spanning-tree tcflush
Function: Configure the spanning-tree flush mode once the topology changes. “no
spanning-tree tcflush” restores to default setting
Parameter:
Enable:the spanning-tree flush once the topology changes.
Disable:the spanning tree don’t flush when the topology changes.
Protect: the spanning-tree flush every ten seconds
Default: enable。
Command mode:
Global mode。
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:
Switch(Config)#spanning-tree tcflush disable
Switch(Config)#
7.3.22 spanning-tree tcflush (port mode)
Command:spanning-tree tcflush {enable| disable| protect}
no spanning-tree tcflush
Function: Configure the spanning-tree flush mode for port once the topology changes .
“no spanning-tree tcflush” restores to default setting
Parameter:
Enable:the spanning-tree flush once the topology changes.
Disable:the spanning tree don’t flush when the topology changes.
Protect: the spanning-tree flush every ten seconds
Default: Global configuration
Command mode: Interface mode