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How Does a Network Switch Work?
How does a network switch work? To understand basic networking, you need to know what a network switch does, how it works, and how it differs from a router and a hub.
www.cisco.com/cisco/web/solutions/small_business/resource_center/articles/connect_employees_and_offices/how_does_a_network_switch_work/index.html
25 Feb 2009
What Is Administrative Distance?
Most routing protocols have metric structures and algorithms that are not compatible with other protocols. In a network with multiple routing protocols, the exchange of route information and the capability to select the best path across the multiple protocols are critical.
www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094195.shtml
08 May 2013
Introduction to EIGRP [IP Routing]
This paper is an introduction to the Interior Gateway Routing Protocol (IGRP) suite of routing protocols designed and developed by Cisco Systems. This paper should be used as an information-only document intended as a technology introduction and does not represent a protocol specification...
www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f07.shtml
10 Aug 2005
Proxy ARP [IP Addressing Services]
...into its IP routing table and routes the packet accordingly. Host B (172.16.10.200/24) does not ARP for Host D IP address 172...belongs to a different subnet than what is configured on Host B ethernet interface 172.16.20.200/24. The main advantage of proxy ARP is that...
References: 20 TAC | 2 Support Community - View All
www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094adb.shtml
28 Jan 2008
Network Address Translation (NAT) FAQ
This document provides answers to some of the more frequently asked questions about Cisco IOS® Network Address Translation (NAT).
References: 37 TAC | 2 Support Community - View All
www.cisco.com/en/US/tech/tk648/tk361/technologies_q_and_a_item09186a00800e523b.shtml
26 Apr 2013
How NAT Works
If you are reading this, you are most likely connected to the Internet and there's a very good chance that you are using Network Address Translation (NAT) right now.
References: 8 TAC | 2 Support Community - View All
www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094831.shtml
29 Mar 2011
OSPF: Frequently Asked Questions
The document addresses the most frequently asked questions (FAQ) associated with Open Shortest Path First (OSPF). The document covers OSPF version 2 only. OSPF version 3, introduced in Cisco IOS Software Releases 12.0(24)S, 12.2(18)S, and 12.2(15)T, is used for distributing IP version...
References: 6 TAC | 2 Support Community - View All
www.cisco.com/en/US/tech/tk365/technologies_q_and_a_item09186a0080094704.shtml
14 Jun 2012
Understanding the Ping and Traceroute Commands
This document illustrates the use of the ping and traceroute commands. With the aid of some debug commands, this document captures a more detailed view of how these commands work.
References: 10 TAC | 1 Support Community - View All
www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00800a6057.shtml
29 Nov 2006
Hot Standby Router Protocol (HSRP): Frequently Asked Questions [IP Application Services]
This document addresses the most frequently asked questions related to Hot Standby Router Protocol (HSRP).
References: 17 TAC | 6 Support Community - View All
www.cisco.com/en/US/tech/tk648/tk362/technologies_q_and_a_item09186a00800a9679.shtml
26 Sep 2012
How Does Load Balancing Work?
Load balancing is a standard functionality of the Cisco IOS® router software, and is available across all router platforms. It is inherent to the forwarding process in the router and is automatically activated if the routing table has multiple paths to a destination. It is...
References: 4 TAC | 1 Support Community - View All
www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094820.shtml
10 Aug 2005