Issue 1 August 2010 79
Appendix A: Glossary of Terms
Terms Used in This Guide
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 9600
Series IP deskphones support IEEE 802.1X for pass-through and for Supplicant
operation with the EAP-MD5 authentication method.
Application -
specific
Specific to a particular “application” running inside the telephone. For example,
configuration file downloading, backup and restore of user data, HTTP push, and the
Web browser are all internal applications that use the HTTP protocol. Similarly, the
RTCP and CNA clients are internal applications that can invoke traceroute. This term
does not include Web-page-based “applications” rendered in the Web browser.
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.
CLAN Control LAN, type of Gatekeeper circuit pack.
CNA Converged Network Analyzer.
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.
9600 Series IP Deskphones 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.
HTTP Hypertext Transfer Protocol, used to request and transmit pages on the World Wide
Web.
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