HP IMC Branch Intelligent Management Software - Manual (Page 64)

one segment of a two-segment session. At the time of setup of L2TP connection, many control
packets are exchanged between server and client to establish tunnel and session for each direction.
One peer requests the other peer to assign a specific tunnel and session id through these control
packets. Then using this tunnel and session id, data packets are exchanged with the compressed
PPP frames as payload.
L2TP Relay Layer Two Tunneling Protocol Frame Relay. A mechanism to tunnel PPP sessions independent of
the media it runs over, using virtual or switched circuits. An L2TP access concentrator (LAC)
virtually extends PPP across the Internet to an L2TP network server located at the corporate network.
LAN Local Area Network. A LAN covers a single geographical area, providing networking services
and applications to users within a common managerial structure, such as a single business,
campus or region.
Make Baseline Sets the configuration file of a common version as a baseline version.
MRU Maximum Receive Unit. The size (in bytes) of the largest messaging protocol data unit that the
communications layer can receive.
MTU Maximum Transmission Unit. The size (in bytes) of the largest messaging protocol data unit that
the communications layer can pass onwards.
NAT Network Address Translation. Improves network system security by reusing IP addresses
Polling interval The interval at which BIMS polls the connectivity status of CPEs
PPP Point-to-Point Protocol. PPP connections are used to connect LANs to service provider WANs, and
to connect LAN segments within an organization network
PPPoE PPP over Ethernet A network protocol for encapsulating PPP frames inside Ethernet frames.
PPPoE-Relay A method which enables an L2TP access concentrator (LAC) to relay active discovery and service
selection functionality for PPPoE), over an L2TP control channel, to an L2TP network server or
tunnel switch (multihop node). The key benefit of the PPPoE Relay feature is end-to-end control of
services between the network server and a PPPoE client.
PPPoE_Bridged PPPoE uses a Ethernet frame enter which allows DSL hardware to function as a bridge, passing
some frames to the WAN and ignoring others. PPPoE bridged frame configuration is simpler than
via a WAN router.
PPTP
Point-to-Point Tunneling Protocol. A tunneling protocol for Windows™ servers and clients
PPTP Relay A method which enables an PPTP access concentrator (LAC) to relay internet PPP data packets
between a server and a client
SMSC Short Message Service Center. Responsible for routing, forwarding and storing Short Message
Service (SMS) operations over the internet or other network.
TR-069 See CWMP.
URL Universal Resource Locator
WAN Wide Area Network. WANs connect LANs located in geographically separated locations
64 Standard terms, abbreviations and acronyms