Purpose and Command Syntax OF IP Route
on Sep 30, 2009 in Router Purpose and Command Syntax of ip routeAs we have discussed previously, a router can learn about remote networks in one of two ways:Manually, from configured static routesAutomatically, from a dynamic routing protocolThe rest of this chapter focuses o...

The IP Route Command
on Sep 30, 2009 in Router Inside Routing The IP Route CommandThe command for configuring a static route is ip route. The complete syntax for configuring a static route is:Router(config)#ip route prefix mask {ip-address | interface-type interface-number [ip-address]} [distance] [name] [perma...

Alexa traffic smallest
on Jun 22, 2009 in Alexa Alexa traffic is traffic to our blog, the more traffic to our blog the small number of nominal figures we blog in Alexa’s eyes, and this is a sign of good alexa toolbar although sometimes confusing. Alexa indeed apply logic to the google rankings,...

Router Connections
on Apr 27, 2009 in Router Router ConnectionsConnecting a router to a network requires a router interface connector to be coupled with a cable connector. As you can see in the figure, Cisco routers support many different connector types.Serial ConnectorsPicture Router Connecti...

Role Of The Router
on Apr 27, 2009 in Router The router is a special-purpose computer that plays a key role in the operation of any data network. Routers are primarily responsible for interconnecting networks by:Determining the best path to send packetsForwarding packets toward their destinatio...

Packet Fields and Frame Fields
on Mar 2, 2009 in Packet and Frame As we discussed previously, routers make their primary forwarding decision by examining the destination IP address of a packet. Before sending a packet out the proper exit interface, the IP packet needs to be encapsulated into a Layer 2 data link fra...

Internetwork Operating System
on Mar 2, 2009 in Inside Routing The operating system software used in Cisco routers is known as Cisco Internetwork Operating System (IOS). Like any operating system on any computer, Cisco IOS manages the hardware and software resources of the router, including memory allocation, pr...

Routers and the Network Layer
on Mar 2, 2009 in Routers and the Network Layer Inside Routing The main purpose of a router is to connect multiple networks and forward packets destined either for its own networks or other networks. A router is considered a Layer 3 device because its primary forwarding decision is based on the information in th...

Router Bootup Process
on Mar 2, 2009 in Inside Routing There are four major phases to the bootup process:1. Performing the POST2. Loading the bootstrap program3. Locating and loading the Cisco IOS software4. Locating and loading the startup configuration file or entering setup mode1. Performing the POSTT...

Best Path Best Path And Metric
on Mar 2, 2009 in Best Path And Metric Determining a router's best path involves the evaluation of multiple paths to the same destination network and selecting the optimum or "shortest" path to reach that network. Whenever multiple paths to reach the same network exist, each path uses a d...