User Manual

234
Users Manual of XGS-6350-24X4C
time-sec: means the delay of preempt,
whose unit is second.
The default value is three seconds. The
value ranges between 1 and 600
seconds.
switchport backup interface preempt mode role is deemed as the default settings of each backup port
pair.
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: