Thanks for your answer.
That mean the brain is one on Active switch. But on data plane, both switch can do it, right?
But I test VSS failover, power off the active switch. Although standby can take over the active role, but there are some loss of the packet
- for example (1) ping loss is 1~2 if failover occur.
- for example (2) voice traffic packet loss is around 100.
How can I improve the convergence to reduce the packet loss when the failover occur?