Switch Features Explained 19
All currently learnt addresses on the port are made permanent. Any 
packets containing a source address not learnt on the port will be 
dropped.
■ Network Login
Connections are only allowed on a port once the client has been 
authenticated by a RADIUS server.
For more information about how Port Security works, see Chapter 10 
 
“Making Your Network Secure”.
IP Routing IP Routing is a method for distributing traffic throughout an IP network. It 
is used to join LANs at the network layer, that is Layer 3 of the OSI (Open 
Systems Interconnection) model. Your Switch is optimized for Layer 3 
edge configurations and has only limited functionality as a core switch.
Dynamic Routing Dynamic routing allows the Switch to adjust automatically to changes in 
network topology or traffic.
Routing Information Protocol (RIP)
RIP is a dynamic routing protocol that allows the Switch to adjust 
automatically to changes in network topology or traffic. Routes are 
calculated between networks automatically.
For more information about Layer 3 Routing, see Chapter 11 
 “IP 
Routing”