Category glossary

Switching

2 definitions associated with Switching.

DHCP snooping

A Layer 2 security feature that classifies switch ports as trusted or untrusted, permits legitimate DHCP server traffic only from trusted paths, and builds a binding table from observed leases. The table can support Dynamic ARP Inspection and IP Source Guard.

IP Source Guard

A switch feature that permits IP traffic on an access port only when it matches trusted bindings, often learned through DHCP snooping or configured statically. It helps block source-address spoofing.