Cisco XR 12000 Series Getting Started Guide

GL-152
Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router
OL-24755-01
Chapter
RSVP
Resource Reservation Protocol. Protocol that supports the reservation of resources across an IP
network. Applications running on IP end systems can use RSVP to indicate to other nodes the nature
(bandwidth, jitter, maximum burst, and so on) of the packet streams they want to receive. RSVP
depends on IPv6. Also known as Resource Reservation Setup Protocol. See also IPv6.
running
configuration
The router configuration currently in effect. Although the user can save multiple versions of the router
configuration for future reference, only one copy of the running configuration exists in the router at any
given time.
Rx
The receiver end of a fabric link. All links are unidirectional. See also Tx.
S
SCFC
shelf controller/fan controller. Combines shelf controller function and fan controller function on one
card. Two are installed in each fabric chassis.
SCGE
shelf controller Gigabit Ethernet card. Gigabit Ethernet switch on a system controller card in the fabric
chassis.
SDH
Synchronous Digital Hierarchy. European standard that defines a set of rate and format standards that
are sent using optical signals over fiber. SDH is similar to SONET, with a basic SDH rate of
155.52 Mbps, designated at STM-1.
SDR
secure domain router. A collection of line cards and route processors that form a complete router. Each
router contains its own instance of dynamic routing, IP stack, system database, interface manager, and
event notification system.
SDRAM
synchronous dynamic random access memory. A form of dynamic RAM that adds a separate clock
signal to the control signals.
shelf controller
The hardware component that manages the configuration and health of a fabric chassis within the
Cisco CRS router.
shelf manager
The shelf manager process runs on a router or switch, doing platform-dependent functions, including
handling OIR events. Shelf manager is formerly called platform manager.
SMU
Software Maintenance Upgrade. A “point fix” for a critical problem. SMUs are delivered as PIE files
and are used to update software packages.
SNMP
Simple Network Management Protocol. SNMP is the protocol governing network management and the
monitoring of network devices and their functions. It is not necessarily limited to TCP/IP networks.
SNMPv3
Simple Network Management Protocol Version 3. An interoperable standards-based protocol for
network management. SNMPv3 provides secure access to devices by a combination of authenticating
and encrypting packets over the network.
software
configuration
A list of packages activated for a particular node. A software configuration consists of a boot package
and additional feature packages.
SONET
Synchronous Optical Network. A standard format for transporting a wide range of digital
telecommunications services over optical fiber. SONET is characterized by standard line rates, optical
interfaces, and signal formats. See also SDH.

Cisco XR 12000 Series Specifications

General

Brand	Cisco
Model	XR 12000 Series
Category	Network Router
Language	English