Flex Links Configuration
 Note:
The STP of master port and slave port should be disabled, and cannot be ERRP port.
32.2.3 Configure Flex Links preemption mode
At a time, only one port is active for forwarding, and the other port is blocked, that is, in the
standby state. When link failure occurs on the active port due to port shutdown or presence of
unidirectional link for example, the standby port becomes active to take over while the original
active port transits to the blocked state.
Table 32-3 Configure Flex Links preemption mode
Enter global
configuration mode
Configure Flex Links
preemption mode
channel-group
channel-group-number_1 backup
{ interface device/slot/port_2 |
channel-group
channel-group-number_2 } preemption
mode { Forced|Bandwidth|Off }
channel-group-number_1
is master port,
port_2/channel-group-num
ber_2 is slave port
Enter interface
configuration mode
interface ethernet device/slot/port_1
Configure Flex Links
preemption mode
switchport backup
{ interface device/slot/port_2 |
channel-group
channel-group-number_2 } preemption
mode { Forced|Bandwidth|Off }
port_1 is master port，
port_2/channel-group-num
ber_2 is slave port
32.2.4 Configure Flex Links Preemption Delay
After configuring Flex Links preemption mode, the port will not be active status
immediately. There has to be a time delay. The default delay is 45s.
Table 32-4 Configure Flex links preemption delay
Enter global
configuration mode
Configure Flex links
preemption delay
channel-group
channel-group-number_1
backup { interface
device/slot/port_2 |
channel-group
channel-group-number_2 }
preemption delay <1-60>
channel-group-number_1 is
master port，
port_2/channel-group-number_2
is slave port
Enter interface
configuration mode
interface ethernet
device/slot/port_1
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