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

Glossary
GL-16
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
sponge
The reassembly and resequencing application-specific integrated circuit (ASIC) that takes cells from
the switch fabric and converts them into packets. The packets are then queued up at the egress
(outgoing) path.
sprayer
The segmentation application-specific integrated circuit (ASIC) located in the ingress (incoming) path
of line cards that takes packets, segments them into cells and sends them to the fabric.
SRP
Spatial Reuse Protocol (another name for DPT which is a ring-based IP protocol). A Cisco-developed
MAC layer protocol to allow multiple access to a SONET ring. It uses destination stripping of unicast
packets to enable spatial reuse.
sRP
standby RP.
SSH
Secure Shell. A protocol that provides a secure remote connection to a router through a Transmission
Control Protocol (TCP) application.
SSL
secure socket layer. A secure socket between two entities with authentication.
standby
Denotes an inactive card or process that waits to become active; standby cards or processes are also
sometimes denoted as backup.
startup
configuration
The router configuration designated to be applied on next router startup.
subinterface
Virtual interfaces created on a hardware interface. These software-defined interfaces allow for
segregation of traffic into separate logical channels on a single hardware interface and allow for better
utilization of the available bandwidth on the physical interface.
switch module
Provides switch fabric functionality. The S2 SM is installed in the fabric chassis. The line card chassis
contains either the S1/S2/S3, the S1/S3, or the S1/S2/S3T, depending on the configuration of the
system.
switchover
A switch between the active and standby cards; the old active card may be dead prior to switchover
(death of the active card is one of the causes for the switchover). Also known as failover.
system controller
The hardware component that manages configuration and health of a chassis within the Cisco CRS-1
Series routing system. In the line card chassis, the SC is part of the RP module. In the fabric chassis,
the SC is a separate shelf controller module. In this document, SC could refer to either RP (line card
chassis) or SC (fabric chassis), unless explicitly mentioned as one or the other.
system reload
Reload of a Cisco CRS-1 Series router node.
system restart
Soft reset of a Cisco CRS-1 Series router node. This involves restarting all the processes running on
that node.

Cisco CRS-1 - Carrier Routing System Router Specifications

General

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