Cisco CRS-1 - Carrier Routing System Router Getting Started Guide

Glossary
GL-9
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
LSP tunnel/MPLS
TE tunnel
A tunnel that uses static LSPs to forward packets to the destination. This phrase is often used in the
abstract sense, with emphasis on the fact that the tunnel is using an LSP to forward data, but without
emphasis on the implementation of the tunnel itself.
LSR
label switch router. The role of an LSR is to forward packets in an MPLS network by looking only at
the fixed-length label.
M
MAC address
Standardized data link layer address that is required for every port or device that connects to a LAN. Other
devices in the network use these addresses to locate specific ports in the network and to create and update
routing tables and data structures. MAC addresses are 6 bytes long and are controlled by the IEEE. Also
known as a hardware address, MAC layer address, and physical address. See also MAC.
mask
Pattern of bits used to reject or accept bit patterns in another set of data.
MBI
minimum boot image. Software image containing kernel and minimum set of drivers and components
to boot up a node.
Mbps
megabits per second. A bit rate expressed in millions of binary bits per second. 1 megabit = 2
20
bits,
1,048,576 bits.
MDA
Management Data APIs.
MED
multi exit discriminator. BGP metric that provides information to external neighbors about the
preferred path into an autonomous system.
metro
The forwarding engine that performs ingress and egress packet processing and forwarding decisions.
MIB
Management Information Base. Database of network management information that is used and
maintained by a network management protocol like Simple Network Management Protocol (SNMP).
The value of an MIB object can be changed or retrieved using SNMP commands, usually through a GUI
network management system. MIB objects are organized in a tree structure that includes public
(standard) and private (proprietary) branches.
MOSPF
Multicast OSPF. Intradomain multicast routing protocol used in OSPF networks. Extensions are
applied to the base OSPF unicast protocol to support IP multicast routing.
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 TE
Multiprotocol Label Switching traffic engineering. A 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.

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English