Avaya 4600 Series 用户手册

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Introduction
Document Organization
1-3
Terms Used in This Guide
1
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, but the content of 802.1p is now incorporated in 802.1D.
ARP
Address Resolution Protocol, used 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 TN799 circuit pack.
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.
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.
MAC
Media Access Control, ID of an endpoint.
NAPT
Network Address Port Translation.
NAT
Network Address Translation.
PSTN
Public Switched Telephone Network, the network used for 
traditional telephony.
QoS
Quality of Service, used to refer to a number of mechanisms 
intended to improve audio quality over packet-based networks.
RRQ
Read Request packet, a message sent from the 4600 Series IP 
Telephone to the TFTP server, requesting to download the 
upgrade script and the application file.
RSVP
Resource ReSerVation Protocol, used by hosts to request 
resource reservations throughout a network.
RTCP
RTP Control Protocol, monitors quality of the RTP services and 
can provide real-time information to users of an RTP service. 
RTP
Real-time Transport Protocol, provides end-to-end services for 
real-time data (such as voice over IP).
TCP/IP
Transmission Control Protocol/Internet Protocol, a network-layer 
protocol used on LANs and internets.