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Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-28417-02
Chapter
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.
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
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.
SP
service processor. An SP on each card maintains an internal management connection to the shelf
controller for the rack. The SP is referred to in CLI commands to identify the nodeID for fabric, alarm
and fan controller cards.
Example:
RP/0/RPO/CPU:router# admin show controllers fabric connectivity location 0/SM0/SP
SPE
Synchronous Payload Envelope. Portion of the SONET frame containing overhead information (POH
and user data).
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