We currently use FlexLink in our systems. However, we recently found out that newer switch hardware will not support FlexLink, so we are exploring the use of FlexLink+. In a test environment, with FlexLink+ configured, we see momentary comm loss on our end devices when disconnecting one of the FlexLink+ interfaces to simulate the failover. It lasts anywhere from 10-15 seconds before the end devices recovers.
On the other hand, when we use FlexLink in the configuration, we see no comm loss.
What is the failover convergence rate of FlexLink vs FlexLink+? Are there any additional configuration options in FlexLink+ we arent using that could improve the response time?
Below is the config for the redundancy ports using FlexLink+ as well as the port settings for the end device:
interface GigabitEthernet1/1
description UpLink 1
switchport trunk native vlan 30
switchport trunk allowed vlan 30,101,102,172
switchport mode trunk
ip arp inspection trust
rep segment 1023 edge no-neighbor primary
macro description switch-automation
spanning-tree portfast trunk
spanning-tree bpduguard disable
spanning-tree link-type point-to-point
end
interface GigabitEthernet1/2
description UpLink 2
switchport trunk native vlan 30
switchport trunk allowed vlan 30,101,102,172
switchport mode trunk
ip arp inspection trust
rep segment 1023 edge no-neighbor
macro description switch-automation
spanning-tree portfast trunk
spanning-tree bpduguard disable
spanning-tree link-type point-to-point
end
interface GigabitEthernet1/3
description RIO Comms
switchport access vlan 102
switchport mode access
load-interval 30
no cdp enable
macro description ab-ethernetip
spanning-tree portfast
end
