Cisco Systems Cisco 12404 manuale d’uso

A-1 Cisco 12404 Internet Router Inst allation and Co nfiguration Guide OL-11636-01 APPENDIX A Technical Specifications Overview Appendix A pro vides the technical specif icatio ns for the Cisco 12404 Internet router , and procedures fo r repackaging the router . • Product A rchitectu re, page A- 2 • Fan T ray Assembly , page A-2 5 • Air Filte[...]

Appendix A T echnical Specifications Product Architecture A-2 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 • V oltage frequency • Listing age ncy ap prov als Product Architecture Ta b l e A - 1 lists system lev el requirements for the Cisco 12404 Internet router . T able A -1 Cisco 12404 Inter net Router Product[...]

A-3 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture Specifications Ta b l e A - 2 lists Cisco 12404 Internet router phy sical specif ications. Ta b l e A - 3 lists the en vironmental specif ications. Feature Description Power Requirements 110V AC po wer, suf fic[...]

Appendix A T echnical Specifications Product Architecture A-4 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 T able A -2 Cisco 12404 Inter net Router Physical Specifications Description V alue Frame height 8.75 inches (22.2 cm) Frame width 19 inches (48.3 cm) Frame depth 26 inches (66.0 cm) W eight Maximum conf igurat[...]

A-5 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture War ni n g Exhaust from other equipm ent vented directly into the Cisco 12404 Internet router air inlet may cause an over -heat condition. Install the router so that it is protected from a direct flow of hot ai[...]

Appendix A T echnical Specifications Product Architecture A-6 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Figur e A -1 AC P ow er Plugs Route Processor Each Cisco 12404 Internet router has one main system (or route) processor . The route processor (RP) processes the netw ork routing protocols and distrib utes updat[...]

A-7 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture Gigabit Route Processor This section provides an o verview of the GRP ( Fi gure A-2 ) and its use as the main system processor for the Cisco 12404 Internet router . This section pro v ides information on the fo[...]

Appendix A T echnical Specifications Product Architecture A-8 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 The MBus connection allows the GRP to do wnload a system bootstrap image, collect or load diagnostic information, and perform general, internal system maintenance operations. The GRP plugs into an y slot in the[...]

A-9 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture The Cisco IOS software images t hat run the Cisco 12404 r outer reside in Flash memory , which is locat ed on the GRP in the f orm of a single in-lin e memory module (SIMM), and on up to t wo (PCMCIA) cards (ca[...]

Appendix A T echnical Specifications Product Architecture A-10 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 SRAM The SRAM provides secondary CPU cache memory . The standard GRP configuration is 512 KB. The principle fu nction of SRAM is to act as a st aging area for routing t able upda te informati on to and fro m t[...]

A-11 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture LED Types Ta b l e A - 6 describes the types of system status light emitting diod es (LED) used on the GRP . Asynchronous Serial Ports T wo asynchronous serial ports on the GRP , the console and auxiliar y por[...]

Appendix A T echnical Specifications Product Architecture A-12 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Note EIA/TIA-232 was kno wn as recommended standard RS-232 before its acceptance as a standard b y the EIA/TIA. The auxiliary port i s an EIA/TI A-232 plug (male) that pro vides a data terminal equipment inter[...]

A-13 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture • Asynchronous serial ports Figur e A -3 P erfor mance Route Pr oce ssor The follo wing are primary functions of the PRP . • Loading the Cisco IOS software to all of the installe d line cards at po wer on [...]

Appendix A T echnical Specifications Product Architecture A-14 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 The Cisco IOS software images t hat run the Cisco 12404 r outer reside in Flash memory , which is locat ed on the PRP in the form of a sin gle in-line memory module (SIMM), and on up to t wo (PCMCIA) cards (ca[...]

A-15 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture SDRAM SDRAM—The SDRAM on the PRP stores routin g tables, protocols, an d network accounting applicatio ns; it also runs the Cisco I OS software. The def ault PRP confi guration includes 51 2 MB of error chec[...]

Appendix A T echnical Specifications Product Architecture A-16 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 NVRAM The system configuration, software conf iguration register sett ings, and en vironmental monitoring logs are cont ained in the 2 MB NV RAM, which i s backed up with b uilt-in lithium batteries that retai[...]

A-17 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture Ta b l e A - 9 lists the supported Flash disk sizes and their Cisco product numbers. PCMCIA Slots The PRP has two PCMCIA sl ots. Either sl ot can support a Flash memor y card or an input/output (I/ O) de vice [...]

Appendix A T echnical Specifications Product Architecture A-18 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 LED Types Ta b l e A - 1 0 lists system status light emitti ng diodes (LED) used on the PR P . Asynchronous Serial Ports The PRP has two asynchronous ser ial ports, the console and auxili ary ports. These allo[...]

A-19 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture Ethernet Port The PRP includes two Ethern et ports, both usin g an 8-pin RJ-45 receptacle for either IEEE 802.3 10B ASE-T (10 Mbps) or IEEE 802.3u 100B ASE-TX (100 Mbps) connect ions. Note The transmission spe[...]

Appendix A T echnical Specifications Product Architecture A-20 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Line cards inst alled in the Ci sco 12404 rout er support online i nsertion and remov al, w hich means you can remove and replace (hot-swappable) a line card while the router remains po wered on. Caution T o e[...]

A-21 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture MBus Module Port Pin Assignments T we nty general purp ose pins and four analog in put pins on the MBus mo dule are used for this design. CSF Functionality The CSF circuity pro vides synchronized speed interco[...]

Appendix A T echnical Specifications Product Architecture A-22 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Scheduler The scheduler handles requests from the lin e cards for access to the CSF . When the scheduler receives a request from a line card for CSF access, the scheduler determines when to al lo w the line ca[...]

A-23 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Product Architecture Connect each A C PEM to a separate A C power source. A po wer factor corrector (PFC) allo ws the PEM to accept AC po wer source vol tage from an A C power source nomi nally operating between 100 to 120 V A C, [...]

Appendix A T echnical Specifications Product Architecture A-24 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 A PFC allows the PEM to accept DC po wer source v oltage from an AC po wer source operating between 100 to 120 V A C, 15-Amp service in North America; and a range of 185 to 264 V AC, 10-Amp se rvic e in an int[...]

A-25 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Fan Tray Assembly Caution The DC PEM and DC PDU assembly weig hs 14.0 pounds (6.35 kg.). Use two hands when handlin g the po wer supply . War ni n g Power to your router must be Off and all cables discon nected before you connect [...]

Appendix A T echnical Specifications Fan Tray Assembly A-26 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 War ni n g Allow sufficient air flow by maintaining 6 inches (15.24 cm) of clearance at both the inlet and exhaust op enings on the chassis because exhaust from other equipment vented directly into the router air[...]

A-27 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Air Filter If the air temperature inside the RP and line card c age rises the system en vironmental monitor shuts do wn all internal power to pre vent equipment damage from excessi ve heat. If the system detects that one of the f [...]

Appendix A T echnical Specifications Chassis Cable-Managemen t System A-28 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Chassis Cable-Management System The Cisco 12404 Interne t router chassis ca ble-manageme nt system organizes the interf ace cables en tering and e xiting the system, keeping them free of sharp bend[...]

A-29 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01 Appendix A T echnical Specifications Maintenance Bus directly from the po wer supply and pe rforms the func tions of po wer-up/do wn control, device discovery , c ode download, diagnostic s, and environmental monitoring and alarms. Power-On/Off Control Based on comma[...]

Appendix A T echnical Specifications Maintenance Bus A-30 Cisco 12404 Internet Router Instal lation and Configuration Guide OL-11636-01[...]