Slow convergence of LACP during HA failover testing.

Slow link convergence due to Juniper taking a long time to send LACP BPDUs.

If hold-time is configured in the physical interfaces this will caused a delay in the reaction this is becuase the hold timer enables interface damping by not advertising interface transitions until the hold timer duration has passed. When a hold-down timer is configured and the interface goes from up to down, the down hold-time timer is triggered. Every interface transition that occurs during the hold-time is ignored. When the timer expires and the interface state is still down, then the router begins to advertise the interface as being down. Similarly, when a hold-up timer is configured and an interface goes from down to up, the up hold-time timer is triggered. Every interface transition that occurs during the hold-time is ignored.