Appendix A Configuration Register Information

Displaying the Configuration Register While Running Cisco IOS

Bit 15

Bit 15 enables diagnostic messages and ignores NVRAM contents.

Displaying the Configuration Register While Running Cisco IOS

The configuration register can be viewed by using the show version or show hardware command.

The following is sample output of the show version command from a Cisco 7206VXR router.

Router# show version

Cisco Internetwork Operating System Software

IOS (tm) 7200 Software (C7200-JS-M), Released Version 12.2(20011220:181136) [biff dec21 101]

Copyright (c) 1986-2002 by cisco Systems, Inc. Compiled Fri 21-Dec-01 05:58 by

Image text-base:0x600089B8, data-base:0x6196E000

(sample text omitted)

term1_500 uptime is 1 day, 19 hours, 25 minutes

System returned to ROM by reload at 00:04:18 UTC Tue Nov 30 1999

System image file is "disk2:c7200-js-mz.dev-test.dec21"

cisco 7206VXR (NPE-G1) processor (revision 0x00) with 245760K/16384K bytes of memory. Processor board ID 13250983

BCM12500 CPU at 700Mhz, Implementation 1, Rev 0.1, 512KB L2 Cache 6 slot VXR midplane, Version 2.0

Last reset from power-on Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp). TN3270 Emulation software.

5 FastEthernet/IEEE 802.3 interface(s)

3 Gigabit Ethernet/IEEE 802.3 interface(s)

509K bytes of non-volatile configuration memory.

62528K bytes of ATA PCMCIA card at slot 2 (Sector size 512 bytes). 16384K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0

Displaying the Configuration Register While Running ROM Monitor

If the bootstrap prompt is “>”, the o command displays the virtual configuration register currently in effect. It includes a description of the bits. See the following sample output:

>o

 

 

 

 

Configuration

register +

02x100

at last boot

Bit#

Configuration

register option settings:

15

Diagnostic mode disabled

14

IP

broadcasts

do not

have network numbers

13Boot default ROM software if network boot fails

12-11 Console speed is 9600 baud

Cisco 7200 VXR Installation and Configuration Guide

 

OL-5013-09

A-5

 

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Cisco Systems 7200 VXR manual Appendix a Configuration Register Information

7200 VXR specifications

The Cisco Systems 7200 VXR Series is a robust and highly scalable modular router designed to meet the demands of service providers and enterprises seeking high-performance solutions for their network infrastructures. Launched as part of the Cisco 7200 series, the VXR (Virtual Extensible Routing) variant enhances capabilities while providing effective support for a wide range of applications, including Internet Protocol (IP) routing, Voice over IP (VoIP), and Virtual Private Network (VPN) configurations.

At the core of the 7200 VXR is its modular design, which enables network administrators to customize the router according to their specific needs. The router supports a variety of interface cards, processing engines, and power supply options, ensuring flexibility for diverse network environments. This modularity facilitates easy upgrades and expansions, making it ideal for growing enterprises and service providers looking to future-proof their networks.

One of the standout features of the Cisco 7200 VXR is its impressive routing performance. It can handle a high level of traffic with low latency, which is critical for bandwidth-intensive applications. The router supports a wide array of routing protocols, including Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Integrated Intermediate System-to-Intermediate System (IS-IS), providing versatility for various network topologies.

The 7200 VXR also incorporates advanced features for enhanced security and reliability. With support for IPsec VPNs, it enables secure data transmission across untrusted networks. The router also includes features like Quality of Service (QoS) for prioritizing network traffic, ensuring critical applications receive the bandwidth they require even during peak loads.

In terms of scalability, the Cisco 7200 VXR can support hundreds of thousands of routes and MAC addresses, making it suitable for large metropolitan area networks (MANs) as well as enterprise backbone applications. It also provides the capability to support IPv4 and IPv6 networks, preparing organizations for a transition to next-generation internet protocols.

Additional characteristics of the Cisco 7200 VXR include enhanced manageability through the Cisco IOS software, which offers a comprehensive command-line interface and support for network management protocols. The router is also energy-efficient, with options for redundant power supplies that ensure continuous availability and minimal downtime in mission-critical applications.

Overall, the Cisco Systems 7200 VXR represents a powerful solution that combines performance, scalability, and security, making it an excellent choice for organizations looking to enhance their network capabilities in a rapidly evolving technological landscape.