Avaya 1603SW Guia Do Utilizador

802.1P
802.1Q 

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

802.1X 

Authentication method for a protocol requiring a network device to authenticate with a 
back-end Authentication Server before gaining network access. Applicable 1600 
Series IP telephones support IEEE 802.1X for pass-through and for Supplicant 
operation 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. The Domain Name System (DNS) is a distributed Internet directory 
service. DNS is used mostly to translate between domain names and IP addresses. 
Avaya 1600 Series IP Telephones can use DNS to resolve names into IP addresses. 
In DHCP, TFTP, and HTTP files, DNS names can be used wherever IP addresses 
were available as long as a valid DNS server is identified first. 

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.

Link Layer Discovery Protocol. All IP telephones with an Ethernet interface support 
the transmission and reception of LLDP frames on the Ethernet line interface in 
accordance with IEEE standard 802.1AB.

MAC 

Media Access Control, ID of an endpoint.