For administrative and troubleshooting purposes, sometimes you must flush the routing tables. You can use Enterprise Device Manager (EDM) to flush the routing tables by VLAN or by port. Use this procedure to flush the IP routing table for a VLAN.
To flush routing tables by VLAN for a VRF instance, first select the appropriate instance.
In a VLAN context, all entries associated with the VLAN are flushed. You can flush the ARP entries and IP routes for the VLAN.