Cisco 12000 GSR User Manual

Course Reference MaterialCisco Installing and Maintaining Routers Part 4: 12000 GSR Series and XS5032 ModulesNETg course 20614Copyright © 2000 Nationa

Cyclic redundancy check. Error−checking technique in which the frame recipient calculates a remainder bydividing frame contents by a prime binary divi

dynamic random−access memory. RAM that stores in capacitors that must be periodically refreshed.DSUData Service Unit. Device used in digital transmiss

FRUField Replaceable UnitGbpsgigabits per secondGigabit Switch RouterThe Cisco 12000 Gigabit Switch Router is Cisco’s high−performance, carrier−class

Integrated Services Digital Network.ISPInternet Service ProviderLANLocal Area NetworkLEDlight emitting diodeMACMedia Access ControlMAUMedia Attachment

OCoptical carrierOhmOhm's Law is the mathematical relationship among electric current, resistance, and voltage.OSIOpen Systems InterconnectionPac

reduced instruction set computingROMread−only memoryRoute/Switch Processor (RSP)Route/Switch Processor. Processor module in the Cisco 7500 series rout

SONETSynchronous Optical Network, a standard for connecting fiber−optic transmission systems.Static Random−Access Memory (SRAM)Type of RAM that retain

VIPVersatile Interface Processor. Interface card used in Cisco 7000 and Cisco 7500 series routers. The VIPprovides multilayer switching and runs Cisco

Cisco 12004 GSRCisco 12000 Series GSR Line CardsCisco 12000 Series GSR: TroubleshootingCatalyst 3000 and 5000 Router ModulesCatalyst 3000 Router: Inst

Cisco 12000 Router InstallationPreinstallation Guidelines (ULT 121): Identify preinstallation guidelines for the Cisco 12000 router.• AC−Input Power S

Cisco 12000 Series GSR: TroubleshootingStartup Problems: Identifying (ULT 171): Identify Cisco 12000 Series Gigabit Switch Router (GSR) startupproblem

ProceduresCisco 12000 Series GSR RoutersCisco 12000 Router InstallationAC−Input Power Supply: InstallingAttach an antistatic wrist strap to yourself a

System StartupTurn each system power switch to the ON position.• Check that the blower modules are operating by listening for them.• As the GRP boots,

Router Card: InstallingConnect the switch to a computer or other data terminal equipment (DTE) device.• Connect the EIA−232 cable to the console, the

data terminal equipment. Device at the user end of a user−network interface that serves as a data source,destination, or both. DTE connects to a data

British thermal unitbufferA temporary storage area, usually in RAM.C.S.CCisco Systems Capitalcagea piece of hardware into which cards are installedCEF