Example 1. Calculating an average of numbers. To find out an average of certain numbers, you can supply them directly in your Excel average formula. For example, =AVERAGE(1,2,3,4) returns 2.5 as the result.
An uplink (UL or U/L) is the portion of a communications link used for the transmission of signals from an Earth terminal to a satellite or to an airborne platform. An uplink is the inverse of a downlink. A downlink (DL) is the link from a satellite to a ground station. Categories: Computers.
As the redundant uplink introduces a loop in the physical topology of the network, the Spanning-Tree Algorithm (STA) blocks it. In the event of failure of the primary uplink to core switch D1, the STP recalculates and eventually unblocks the second uplink to switch D2, therefore it restores connectivity.