Cisco 10000-2P2-2DC Software Guide - Page 590

Glossary LNS L2TP network server. A node that acts as one side of an L2TP tunnel endpoint and is a peer to the L2TP access concentrator (LAC). The LNS is the logical termination point of a PPP session that is being tunneled from the remote system by the LAC. Analogous to the Layer 2 Forwarding (L2F) home gateway (HGW). local address pools Locally configured pools of IP addresses that the virtual home gateway (VHG) or PE router uses to assign addresses to the remote users of the PPP sessions it terminates. M MAC MIB Modular QoS Command-line interface MPLS MPLS VPN MQC MR-APS multicast multihop multipoint subinterface multiplexer Media Access Control Layer. A sublayer of the Data Link Layer (Layer 2) of the ISO OSI Model responsible for media control. Management Information Base. Database of network management information that is used and maintained by a network management protocol, such as SNMP or CMIP (Common Management Information Protocol). The value of a MIB object can be changed or retrieved using SNMP commands, usually through a Network Management System (NMS). MIB objects are organized in a tree structure that includes public (standard) and private (proprietary) branches. See MQC. Multiprotocol Label Switching. Switching method that forwards IP traffic using a label. This label instructs the routers and the switches in the network where to forward the packets based on preestablished IP routing information. MPLS-based virtual private network. Modular QoS Command-line interface. Also referred to as Modular CLI. A platform independent CLI for configuring QoS features on Cisco products. Multirouter automatic protection switching. Single packets copied by the network and sent to a specific subset of network addresses. These addresses are specified in the Destination Address Field. A term used in Cisco VPN environments. Refers to accepting a PPP session from L2TP, PPTP, or L2F and tunneling it back out using L2TP, PPTP, or L2F. See also tunnel switch. Multipoint networks have three or more routers in the same subnet. For Dynamic Bandwidth Selection, if you put the PVC in a point-to-multipoint subinterface or in the main interface (which is multipoint by default), you need to either configure a static mapping or enable inverse Address Resolution Protocol (ARP) for dynamic mapping. A device that can send several signals over a single line. The signals are then separated by a similar device at the other end of the link. This can be done in a variety of ways: time division multiplexing, frequency division multiplexing, and statistical multiplexing. Multiplexers are also becoming increasingly efficient in terms of data compression, error correction, transmission speed, and multi-drop capabilities. GL-6 Cisco 10000 Series Router Software Configuration Guide OL-2226-23