Cisco 8831NR Administration Manual page 26

Network Protocols
Networking Protocol
IEEE 802.1X
Internet Protocol (IP)
Link Layer Discovery
Protocol-Media Endpoint Devices
(LLDP-MED)
Cisco Unified IP Conference Phone 8831 and 8831NR Administration Guide
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Cisco Unified IP Conference Phone 8831 and 8831NR
Purpose
The IEEE 802.1X standard defines
a client-server-based access control
and authentication protocol that
restricts unauthorized clients from
connecting to a LAN through
publicly accessible ports.
Until the client is authenticated,
802.1X access control allows only
Extensible Authentication Protocol
over LAN (EAPOL) traffic through
the port to which the client is
connected. After authentication is
successful, normal traffic can pass
through the port.
IP is a message protocol that
addresses and sends packets across
the network.
LLDP-MED is an extension of the
LLDP standard developed for voice
products.
Usage Notes
Cisco Unified IP Conference Phone
implements the IEEE 802.1X
standard by providing support for
EAP-FAST and EAP-TLS
authentication.
To communicate using IP, network
devices must have an assigned IP
address, subnet, and gateway.
IP addresses, subnets, and gateways
identifications are automatically
assigned if you are using the Cisco
Unified IP Conference Phone with
Dynamic Host Configuration
Protocol (DHCP). If you are not
using DHCP, you must manually
assign these properties to each
phone locally.
For more information, see the Cisco
Unified Communications Manager
Features and Services Guide.
The Cisco Unified IP Conference
Phone supports LLDP-MED on the
SW port to communicate
information such as:
• Voice VLAN configuration
• Device discovery
• Power management
• Inventory management
For more information about
LLDP-MED support, see the
LLDP-MED and Cisco Discovery
Protocol white
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