Posts Tagged ‘serial’
July 3rd, 2008 | 
Author: Prepare your router for the Wide Area Network.
Cisco devices use HLDC encapsulation by default.
Serial COMMUNICATION
Serial connections send 1 data bit at a time when transmitting.
Parallel Connections send multiple bits simultaneously.
Theoretically an 8 bit parallel bus, transfers data 8X faster.
Serial connections can be clocked much faster than parallel links.
2 of the main factors that affect parallel communication are clock skew & cross talk.
Clock skew – some parallel bits arrive later than others.
Overcoming clock skew is difficult & involves clocking.
Cross-Talk – crosstalk normally refers to a signal affecting another nearby signal.
Tags: study, ip, 802.1q, wan, vtp, vlan
Bitmindframes cisco study guides.
This will show you the basics of the cisco IOS command line interface and the different modes.
After several lines of information on the screen you should eventually see:
Would you like to enter the initial configuration dialog? [yes/no]: n
On some routers and switchesyou may see the following message.
Would you like to terminate autoinstall? [yes/no]: y Router> or Switch>
Privilege Mode
Router> enable
If you are prompted for a password type: class or if that does not work, type cisco
Use the “?” to view the list of available commands or command options
Router> ?