Cisco Router 800 Series Software Configuration Guide

 
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About This Guide
Obtaining Additional Publications and Information
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protocol_journal.html
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About This Guide
Obtaining Additional Publications and Information
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CHAPTER
 
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1
Concepts
This chapter contains conceptual information that may be useful to Internet 
service providers (ISPs) or network administrators when configuring Cisco 800 
series and Cisco SOHO series routers. To review some typical network scenarios, 
see “Network Scenarios” in Chapter 2. For information on specific 
configurations, see Chapter 7, “Router Feature Configuration,” and Chapter 8, 
“Advanced Router Configuration.”
This...

 
Chapter 1      Concepts
Overview of Cisco 800 Series and Cisco SOHO Series Routers
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QoS, page 1-20
Access Lists, page 1-25
Overview of Cisco 800 Series and Cisco SOHO Series 
Routers
The Cisco 801, 802, 803, and 804 routers are Cisco IOS-based members of the 
Cisco 800 router product line supporting Integrated Services Digital Network 
(ISDN) connections. 
The Cisco 805 router includes one 10BASE-T Ethernet port and one serial port, 
which...

 
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Chapter 1      Concepts
Overview of Cisco 800 Series and Cisco SOHO Series Routers
The data-and-voice Cisco 827-4V router has four Foreign Exchange Station 
(FXS)/plain old telephone service (POTS) ports in addition to the 10BASE-T 
Ethernet port and one ADSL network port, and it supports Voice over IP (VoIP). 
The four FXS/POTS ports will support loop-start functions for connecting to 
POTS devices up to 500 ft. The Cisco 827-4V router...

 
Chapter 1      Concepts
ADSL
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The Cisco 831, 836, and 837, and Cisco SOHO 91, 96, and 97 routers support 
switch functions which enable the routers to be connected as a 10/100 BASE-T 
device. These routers crossover functionality enable them to detect MDI/MDIX 
to any other PC or hub with a straight-through cable or crossover cable. 
Ta b l e 1 - 1 summarizes what interface each Cisco model supports.
ADSL
ADSL is a technology that allows both...

 
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Chapter 1      Concepts
SHDSL
SHDSL
SHDSL is a technology based on the G.SHDSL (G.991.2) standard that allows 
both data and voice to be transmitted over the same line. SHDSL is a packet-based 
network technology that allows high-speed transmission over twisted-pair copper 
wire between a network service provider (NSP) central office and a customer site, 
or on local loops created within either a building or a campus. 
G.SHDSL devices can...

 
Chapter 1      Concepts
Network Protocols
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With the DNS-based x.25 routing feature, it is easy to manage the X.121-to-IP 
addressing correlation and the mnemonic-to-X.121 addressing correlation. 
Instead of the router needing a route statement going to all destinations, all that is 
needed is a wildcard route statement that covers all addresses in the DNS.
Network Protocols
Network protocols enable the network to pass data from its source to a...

 
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Chapter 1      Concepts
Network Protocols
G.DMT
G.DMT full-rate ADSL is a technology that can expand the usable bandwidth of 
existing copper telephone lines, delivering high-speed data communications at 
rates of up to 10 Mbps. The technology brings full-motion video, efficient 
telecommuting, and high-speed data transmission to the home or business, all 
without interrupting normal telephone service. 
American National Standards Institute...

 
Chapter 1      Concepts
Routing Protocol Options
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Routing Protocol Options
Routing protocols include the following:
Routing Information Protocol (RIP) 
Enhanced Interior Gateway Routing Protocol (EIGRP)
RIP and Enhanced IGRP protocols differ in several ways, as shown in Ta b l e 1 - 2.
RIP
RIP is an associated protocol for IP, and is widely used for routing Internet 
protocol traffic. RIP is a distance-vector routing protocol, which means...