User's Manual

Table Of Contents
263
Users Manual of CS-6306R
24.1.2.3 Setting the Transmission and Reception of TCN Packets
Command Purpose
Switch_config_intf# switchport bakcup
interface tcn transmit
Allows a port to transmit the TCN packets.
Switch_config_intf# switchport backup
interface tcn accept
Allows a port to process the TCN packets.
The transmit command can be enabled on the device with a configured backup port. When a backup port is
switched, it will transmit the TCN packets.
The accept command can be enabled on the uplink device. If this command is enabled on a uplink device, it
can receive the TCN packets and delete the MAC addresses that are learned by the downlink port.
24.1.3 FlexLinkLite Configuration Example
Figure 2: FlexLinkLite configuration example
Configuration
Run the following commands to set the backup port:
Switch# config
Switch_config# interface gigaEthernet 0/1
Switch_config_g0/1# switchport backup interface g0/2 as backup
Enable the default role-based preempt and set the delay to 15 seconds:
Switch_config_g0/1# switchport backup interface preempt delay 15
Make the following settings to enable the TCN packets to be transmitted:
Switch_config_g0/1# switchport backup interface tcn transmit
Switch_config_g0/1# interface g0/2
Switch_config_g0/2# switchport backup interface tcn transmit
Switch_config_g0/2# exit
Browse the state of the port:
Switch_config# show backup interfaces
Backup interface pairs: