Cisco 10000 - Manual (Page 522)

Glossary
GL-6
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
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 Media Access Control Layer. A sublayer of the Data Link Layer (Layer 2) of the ISO OSI Model
responsible for media control.
MIB 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.
Modular QoS
Command-line
interface See MQC.
MPLS 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 VPN MPLS-based virtual private network.
MQC Modular QoS Command-line interface. Also referred to as Modular CLI. A platform independent CLI
for configuring QoS features on Cisco products.
MR-APS Multirouter automatic protection switching.
multicast Single packets copied by the network and sent to a specific subset of network addresses. These
addresses are specified in the Destination Address Field.
multihop 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
subinterface 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.
multiplexer 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.