Dell S4048T User Manual

EAP over RADIUS
802.1X uses RADIUS to shuttle EAP packets between the authenticator and the authentication server, as
defined in RFC 3579.
EAP messages are encapsulated in RADIUS packets as a type of attribute in Type, Length, Value (TLV) format.
The Type value for EAP messages is 79.
Figure 10. EAP Over RADIUS
RADIUS Attributes for 802.1X Support
Dell Networking systems include the following RADIUS attributes in all 802.1X-triggered Access-Request
messages:
Attribute 31 Calling-station-id: relays the supplicant MAC address to the authentication server.
Attribute 41 NAS-Port-Type: NAS-port physical port type. 15 indicates Ethernet.
Attribute 61 NAS-Port: the physical port number by which the authenticator is connected to the
supplicant.
Attribute 81 Tunnel-Private-Group-ID: associate a tunneled session with a particular group of
users.
Configuring 802.1X
Configuring 802.1X on a port is a one-step process.
For more information, refer to Enabling 802.1X.
Related Configuration Tasks
• Configuring Request Identity Re-Transmissions
802.1X 118

Dell S4048T Specifications

General

Switching Capacity	1.44 Tbps
Rack Units	1U
Form Factor	Rack-mountable
Power Device	Internal power supply
Power Redundancy	Optional
Product Type	Switch
Jumbo Frame Support	Yes
Routing Protocol	OSPF, BGP, RIP, VRRP, PIM-SM, IGMP
Remote Management Protocol	SNMP, RMON, Telnet, SSH
Features	Quality of Service (QoS), Jumbo Frames Support, Virtual Route Redundancy Protocol (VRRP), VLAN support, sFlow, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), IPv6 support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae
Dimensions (W x D x H)	17.3 in x 16 in x 1.7 in
Operating Temperature	0°C to 40 °C
Operating Humidity	10% to 90% (non-condensing)