Category Archives: WAN

WAN Connections: Frame Relay

Frame Relay is typically used in packet switched networks.  Packet switched networks let service providers share unused bandwidth across lines.  This allows the service provider to sell cheaper connections since you may not use all of the bandwidth.  They can also over provision the cloud they are sharing. The terms to know are as follows:… Read More »

Cisco WAN Links: PPP (Leased Line) Protocol

Typically with WAN connections, you connect your WIC (WAN Intenret Connection Card) using a DB-60 connector (serial interface) to a CSU/DSU with the V.35 side of the cable.  The CSU/DSU then connects into the wall which is the DEMARC. The other physical type of connection is a card that combines the CSU/DSU into the card… Read More »