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a serial interface on a router is basically used for WAN communications. we generally connect to other routers through internet using serial interface. In a lab scenario we generally emulate WAN connections by connecting the serial interfaces of the routers using a cable called DCE/DTE cable.
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What is a wan port on a cisco router?
These are high-speed serial interfaces that will connect to a Telco's equipment which provides you with leased-line or frame-relay connectivity.
What equipment does the DCE end of the serial cable usually connect?
It would connect to the serial port interface of a router.
Briefly explain why the serial interfaces of the router do not have MAC addresses?
Serial interfaces do not pass any MAC information because the information is formed using WAN encapsulation (PPP. HDLC, Frame Relay).
What do you use to connect directly from your laptop to the router to diagnose it?
serial cable
Cisco router 2801 serial port is manually down how you can enable this port?
router> enablerouter# configure terminalrouter(config) interface serial (interface number)router(config-if) no shutdownrouter(config-if) endrouter#substitute (interface number) for the actual int number.. eg serial 0/1you can find the number of the interface by using show interfaces from privileged mode
Which two commands can a technician use to determine whether router serial ports have ip addresses that are assigned to them?
"show interfaces" "show ip interface brief"
What is rollover cable for on Cisco router?
A rollover cable is used in a networking environment where a router/switch is to be configured from a computer. One end is wired one way but on the other it is reversed. You would typically use one end into a serial port on a PC and the other into the console port of the switch/router. It is common within cisco configurations. Hope I helped
Is a serial port typically used to connect an external modern?
Yes.
Functions of an interface?
The functions of an interface is to connect two different items together and make them work. The most common interfaces are Parallel, Serial, USB, Infrared and PS/2.
What is a Cisco Cab-v35mt?
It's a cable used to connect from a Cisco router's DB60 serial port to a telecommunication company's equipment which provides you with a data link.
Which of these technologies is considered a legacy port today because it has been replaced by other technologies in modern PCs?
With time there has been advance developments in Interfaces used by Devices & Peripherals to connect to computer has moved towards univeral standards for INPUT & OUTPUT interfaces. Earlier Keyboard & Mouse used to Connect to serial ports then moved towards PS2 ports and now USB ports. For Display VGA ports used earlier now uses DVI and HDMI interfaces. Printersused parallel ports now uses USB & Ethernet interfaces.Considering new interfaces today PS2, Serial, Parallel and VGA Ports can be considered as Legacy ports.
What is the default encapsulation for serial interfaces on Cisco routers?
HDLC
