D-Link DGS-1510 Series Reference Manual page 593

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
Switch# configure terminal
Switch(config)# spanning-tree priority 4096
Switch(config)#
65-15 spanning-tree tcnfilter
This command is used to enable Topology Change Notification (TCN) filtering at the specific interface.
Use the no form of this command to disable TCN filtering.
spanning-tree tcnfilter
no spanning-tree tcnfilter
Parameters
None.
Default
By default, this option is disabled.
Command Mode
Interface Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
Enabling TC filtering on a port is useful for an ISP to prevent the external bridge to a core region of
the network, causing address flushing in that region, possibly because those bridges are not under
the full control of the administrator.
When a port is set to the TCN filter mode, the TC event received by the port will be ignored. This
configuration will take effect for all the spanning-tree modes.
Example
This example shows how to configure TCN filtering on port eth1/0/7.
Switch# configure terminal
Switch(config)# interface eth1/0/7
Switch(config-if)# spanning-tree tcnfilter
Switch(config-if)#
65-16 spanning-tree tx-hold-count
This command is used to limit the maximum number of BPDUs that can be sent before pausing for
one second. Use the no form of this command to revert to the default setting.
spanning-tree tx-hold-count VALUE
no spanning-tree tx- hold-count
Parameters
VALUE Specifies the maximum number of BPDUs that can be sent before
pausing for one second. The range is from 1 to 10.
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