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
