Chapter 3 Installing a Cisco 7200 VXR Router

Connecting I/O Controller, NPE-G1, or NPE-G2 Cables

Figure 3-28 Console and Auxiliary Port DB-25 Connections

12

SLOT

1

 

MII

 

FE

 

 

ENABLED

PCMCIA

EJECT

SLOT

0

 

 

T

 

 

SE

-45

PU

RE

 

RJ

C

 

MII

RJ45

RJ45

PWR

EN

EN

LINK

1O OK

FAST ETHERNET INPUT/OUTPUT CONTROLLER

84537

3

 

 

 

4

 

 

 

 

1

Auxiliary port

3

Modem

 

 

 

 

2

Console port

4

Console terminal

 

 

 

 

DB-25 Console Port Signals and Pinouts

Both Data Set Ready (DSR) and Data Carrier Detect (DCD) are supported on the C7200-I/O,

C7200-I/O-FE, and C7200-I/O-FE-MII and are active when the system is running. The Request To Send (RTS) signal tracks the state of the Clear To Send (CTS) input. The console port does not support modem control or hardware flow control. Table 3-14lists the DB-25 console port signals for the C7200-I/O, C7200-I/O-FE, and C7200-I/O-FE-MII. The console port requires a straight-through EIA/TIA-232 cable.

Table 3-14

Console Port Signals for C7200-I/O, C7200-I/O-FE, and C7200-I/O-FE-MII

 

 

 

 

 

Pin1

Signal

Direction

Description

 

1

GND

—

Ground

 

 

 

 

 

2

TxD

In

Transmit Data

 

 

 

 

 

3

RxD

Out

Receive Data

 

 

 

 

 

6

DSR

Out

Data Set Ready (always on)

 

 

 

 

 

7

GND

—

Ground

 

 

 

 

 

8

DCD

Out

Data Carrier Detect (always on)

 

 

 

 

 

1. Any pin not referenced is not connected.

Cisco 7200 VXR Installation and Configuration Guide

3-36

OL-5013-09

 

 

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Cisco Systems 7200 VXR manual Pin Signal Direction Description, Gnd, Dsr, Dcd
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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.
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