Configuring trusted ports in a cascaded network

In a cascaded network involving multiple DHCP snooping devices, the ports facing authorized DHCP servers should be configured as trusted ports.

By default, all ports on the snooping device record clients' IP-to-MAC bindings upon receiving DHCP requests. To save system resources, you can disable the ports indirectly connected to DHCP clients from recording clients' IP-to-MAC bindings.