Avaya 4600 Manuel D’Utilisation

802.1D
802.1Q 

802.1Q defines a layer 2 frame structure that supports VLAN identification and a QoS 
mechanism usually referred to as 802.1D. 

802.1X 

Authentication method for a protocol requiring a network device to authenticate with a 
back-end Authentication Server before gaining network access. Applicable 4600 
Series IP telephones support IEEE 802.1X as a Supplicant with the EAP-MD5 
authentication method.

ARP 

Address Resolution Protocol, used, for example, to verify that the IP address 
provided by the DHCP server is not in use by another IP telephone.

CELP 

Code-excited linear-predictive. Voice compression requiring only 16 kbps of 
bandwidth.

CLAN 

Control LAN, type of Gatekeeper circuit pack.

CNA 

Converged Network Analyzer, an Avaya product to test and analyze network 
performance.

DHCP 

Dynamic Host Configuration Protocol, an IETF protocol used to automate IP address 
allocation and management.

DiffServ 

Differentiated Services, an IP-based QoS mechanism.

DNS 

Domain Name System, an IETF standard for ASCII strings to represent IP 
addresses.

EAP 

Extensible Application Protocol.

Gatekeeper 

H.323 application that performs essential control, administrative, and managerial 
functions in the media server. Sometimes called CLAN in Avaya documents.

H.323 

 A TCP/IP-based protocol for VoIP signaling.

Hypertext Transfer Protocol, used to request and transmit pages on the World Wide 
Web.

HTTPS 

A secure version of HTTP.

IETF 

Internet Engineering Task Force, the organization that produces standards for 
communications on the internet.

LAN 

Local Area Network.

LDAP 

Lightweight Directory Access Protocol, an IETF standard for database organization 
and query exchange.