Chapter 2 Overview of Cisco 1800 Series Routers (Modular)

Interface Numbering

1

Input power connection

8

CompactFlash memory card slot

 

 

 

 

2

On/Off switch

9

CompactFlash (CF) LED

 

 

 

 

3

Slot 0 (WIC, VWIC—data only, or HWIC)

10

AIM LED

 

 

 

 

4

Console port

11

USB port

 

 

 

 

5

Fast Ethernet ports and LEDs

12

Aux port

 

 

 

 

6

KensingtonTM security slot

13

Chassis ground connection

7

Slot 1 (WIC, VWIC—data only, or HWIC)

 

 

 

 

 

 

Interface Numbering

Each individual interface (port) on a Cisco 1841 router is identified by a number. A Cisco 1841 router contains the following wide-area network (WAN) and local-area network (LAN) interface types:

Two onboard Fast Ethernet LAN interfaces

Two slots in which you can install WICs, VWICs (data only), and HWICs.

The numbering format for the slots is interface-type 0/slot-number/interface-number.Table 2-6summarizes the interface numbering.

Table 2-6

Interface Numbering

 

 

 

 

 

 

 

Slot Number

 

Slot Type

Slot Numbering Range

Example1

Onboard Ports

 

Fast Ethernet

0/0 and 0/1

interface fastethernet 0/0

 

 

 

 

 

Slot 0

 

HWIC/WIC/VWIC2

0/0/0 to 0/0/3

interface serial 0/0/0

 

 

 

 

line async 0/0/0

 

 

 

 

 

Slot 1

 

HWIC/WIC/VWIC2

0/1/0 to 0/1/3

interface serial 0/1/0

 

 

 

 

line async 0/1/0

 

 

 

 

 

1.The interfaces listed are examples only; other possible interface types are not listed.

2.VWICs are data-only in a Cisco 1841 router.

Note On the Cisco 1841 router, the numbering format for configuring an async interface is 0/slot/port. To configure the line associated with an async interface, simply use the interface number to specify the async line. For example, line 0/0/0 specifies the line associated with interface serial 0/0/0 on a WIC-2A/S in slot 0. Similarly, line 0/1/1 specifies the line associated with interface async 0/1/1 on a WIC-2AM in slot 1.

Cisco 1800 Series Routers (Modular) Hardware Installation Guide

 

OL-5876-03

2-9

 

 

 

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Image 27
Cisco Systems CISCO1841-HSEC/K9-RF manual Interface Numbering, Slot Number Slot Type, Example

CISCO1841-HSEC/K9-RF specifications

The Cisco Systems CISCO1841-HSEC/K9-RF is a versatile and robust router designed to meet the demands of small to medium-sized businesses and branch offices. This model is part of the Cisco 1800 Series Integrated Services Routers, which are known for their performance, security features, and scalability, making them ideal for organizations seeking to enhance their network infrastructure.

One of the main features of the CISCO1841-HSEC/K9 is its modular architecture. This design allows businesses to customize and expand their networks according to changing needs by adding various modules and interfaces. The router supports multiple WAN interfaces, which include serial, Ethernet, and DSL, providing flexible connectivity options to accommodate various networking scenarios.

The CISCO1841-HSEC/K9 also boasts an integrated security architecture. This router is equipped with advanced security features, including firewall capabilities, VPN support, and intrusion prevention systems. These technologies ensure that data is protected while being transmitted across the network. The built-in security features help organizations safeguard sensitive information against potential threats and cyberattacks.

In terms of performance, the CISCO1841-HSEC/K9 is powered by a high-speed processor and dynamic routing capabilities, which allow it to efficiently handle high volumes of traffic without compromising performance. The router supports various routing protocols, including EIGRP, OSPF, and BGP, facilitating seamless data flow and efficient route management.

Another noteworthy characteristic of the CISCO1841-HSEC/K9 is its support for voice and video services. This capability enables businesses to deploy unified communications applications, such as VoIP and video conferencing, enhancing collaboration among team members and improving overall productivity.

Moreover, the router is designed for easy management and monitoring. Cisco’s IOS software provides a user-friendly interface, allowing network administrators to configure, operate, and troubleshoot the network with ease. The router also supports Cisco’s Smart Install feature for simplified deployment and management.

In summary, the Cisco Systems CISCO1841-HSEC/K9-RF is a powerful and adaptable router that combines security, flexibility, and performance. Its modular design, robust security features, support for various routing protocols, and capabilities for multimedia applications make it a compelling choice for businesses looking to enhance their network infrastructure while addressing current and future demands.