Instruction/ maintenance manual of the product 1600 Cisco Systems
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Cisco 1600 Series Router Architecture.
Table of Contents Cisco 1600 Series Router Architecture ............................................................................................................1 Introduction ........................................................................
Cisco 1600 Series Router Architecture Introduction Hardware Overview Block Diagram Memory Details Boot Sequence Packet Switching Related Information Introduction This document is an overview of the hardware and software architecture of the Cisco 1600 Series Routers.
Figure 4: Cisco 1604 and 1604R Rear Panel Figure 5: Cisco 1605R Rear Panel The Cisco 1600 series routers are either run−from−Flash or run−from−RAM models. Router model names with an R are run−from−RAM routers; all other models are run−from−Flash.
Non−Volatile RAM (NVRAM), PCMCIA Flash, and WIC. Input/Output (I/O) Buses allow the M68360 to individually control other devices through the SCCs. These include Universal Asynchronous Receiver/Transmitter (UART), the Ethernet controller, and the WAN port interface.
Module − SIMM (72−pin, 60 ns, with or without parity). If SIMM is non−parity, total DRAM can be up to 18 MB. If SIMM is with parity, total DRAM can be up to 16 MB (on−board 2 MB will be disabled). Note: The Cisco 1605−R Series Router has 8 MB on−board.
Bridging software. X.25 software, Version 3.0.0. Basic Rate ISDN software, Version 1.1. 1 Ethernet/IEEE 802.3 interface(s) 1 Serial(sync/async) network interface(s) 1 ISDN Basic Rate interface(s) Syst.
example : boot system flash slot0:c1600−sy−l.122−1a.bin This forces the RxBoot to look for the file "c1600−sy−l.122−1a.bin" on the Flash device called "slot0:". The boot system directive in the router configuration file overrides the configuration register.
as set forth in subparagraph (c) of the Commercial Computer Software − Restricted Rights clause at FAR sec. 52.227−19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227−7013. cisco Systems, Inc.
Cisco IOS software creates these rings on behalf of the media controllers and then manages them jointly with the controllers. Each interface has a pair of rings: a receive (RX) ring for receiving packets and a transmit (TX) ring for transmitting packets.
Step 1 : The interface media controller detects a packet on the network media and copies it into a buffer pointed to by the first free element in the receive ring. Media controllers use the Direct Memory Access (DMA) method to copy packet data into memory.
switching. The packet goes in the queue of the appropriate process (for instance, an IP packet is placed in the queue for the IP Input process), and the receive interrupt is dismissed. Step 7: Eventually the packet switching process runs, switching the packet and rewriting the MAC header as needed.
Maximum Number of Interfaces and Subinterfaces for Cisco IOS Platforms: IDB Limits • Product Catalog • All contents are Copyright © 1992−−2002 Cisco Systems Inc.
An important point after buying a device Cisco Systems 1600 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco Systems 1600 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco Systems 1600 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco Systems 1600 you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco Systems 1600 will certainly help you make a decision on the purchase.
If you already are a holder of Cisco Systems 1600, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco Systems 1600.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco Systems 1600. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco Systems 1600 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
