DCE
DCE
• A CSU/DSU terminates a digital local loop.• A modem terminates a digital local loop.• A CSU/DSU terminates an analog local loop.• A modem terminates an analog local loop.• A router is commonly considered a DTE device.• A router is commonly considered a DCE device.
For digital lines the device that is used to establish the communications link between the customer equipment and the local loop is CSU/DSU. The call setup time of a circuit switched WAN implementation considered a drawback is data cannot be transferred until a circuit has been established.
modern
The only difference is the relative location of the device that is in loopback mode. Local loopback testing is when your device is set to send back everything it receives to the sender, aka loopback mode. Remote loopback testing is when your device orders a foreign device to enter loopback mode.
Local Loop
CSU and DSU
resever ip of loop back is 127.0.0.1
Loop
A router
IP telephones are not directly connected to the local loop. False! according to Network + Guide to Networks page 539
The condition of the local loop The service provider The length of the local loop