Flex Links Configuration
occupies more bandwidth.
As shown in Figure 32-2, if role preemption is configured on the Flex link group on Switch
A, when the link of GigabitEthernet 1/0/1 on Switch A recovers, GigabitEthernet 1/0/2 is
immediately blocked and transits to the standby state, while GigabitEthernet 1/0/1 transits to
the forwarding state. If non-role preemption is configured, when the link of GigabitEthernet
1/0/1 on Switch A recovers, GigabitEthernet 1/0/1 remains in the standby state, and no link
switchover occurs, thus keeping the traffic stable.
32.2 Flex Links Configuration
32.2.1 Flex Links Configuration Tasks
Table 32-1 Flex Links Configuration Tasks
Flex Links basic configuration
Configure Flex Links group
Advanced Flex Links
configuration
Configure Flex Links preemption mode
Configure Flex links preemption delay
Flex Links monitor and maintainenance
32.2.2 Configure Flex Links group
Configuring Flex Links group needs specify master and slave port. If master port is
ethernet port, the configuration should be in interface configuration mode; if master port is
channel-group port member, the configuration should be in global configuration mode.
Table 32-2 Configure Flex Links group
Enter global
configuration mode
Configure Flex Links
group
channel-group
channel-group-number_1 backup
{ interface device/slot/port_2 |
channel-group
channel-group-number_2 }
channel-group-number_1 is
master port,
port_2/channel-group-number
_2 is slave port
no channel-group
channel-group-number_1 backup
Enter interface
configuration mode
interface ethernet
device/slot/port_1
Configure Flex Links
group
switchport backup { interface
device/slot/port_2 | channel-group
channel-group-number_2 }
port_1 is master port,
port_2/channel-group-number
_2 is slave port