rc/ipv4: show route primary protocol pb_as34553_vli20_ipv4

show route primary protocol pb_as34553_vli20_ipv4

Table master4:
66.248.235.0/24      unicast [pb_as34553_vli20_ipv4 2021-01-08 15:00:08] * (100) [AS34553i]
	via 185.1.179.36 on ens19