End-to-end Delay

The End to End Network Delay Time calculator computes the time for data transmitted through a network of routers.

INSTRUCTIONS: Choose units and enter the following:

• (n) Number of Links between Routers 
• (d_proc) Average processing delay incurred by a router
• (d_trans) Average transmission delay
• (d_prop) Average propagation delay

End to End Delay Time (t): the calculator returns the time in milliseconds (ms).  However this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

End-to-end delay is the total time it takes for a packet to be sent through a network. Each router has its own separate delay time, so this only gives an estimation.  

The End to End delay time equation is:

x = n * (d_proc +d_trans + d_prop)

where:

• x - End to End network delay time
• n - the number of links between routers
• d_proc - the average processing delay incurred by a router
• d_trans - the average transmission delay
• d_prop - the average propagation delay

Note: the number of links is equal to the number of routers minus 1.

Time Dependent Calculators

• Time required to process an amount of data at a specific data processing rate
• Amount of time required to transfer an amount of data over a different types of networks
• Number of items (unit-less) produced over time
• Length or distance processed (produce or consume) over time
• Area processed (produced, covered or consumed) over time
• Volume processed (produced or consumed) over time
• Weight or mass processed (produced or consumed) over time
• Speedup Factor (aka Amdahl's Law)
• Compute Data Storage Needed
• Network Propagation Delay

Telecommunications Calculators

• Propagation Delay Computes the delay between two routers based on their positions and a transfer rate.
• Nodal Delay: Computes the nodal delay based on the queuing, processing, transmission and propagation delay.
• End to End Delay Computes the end to end delay based on the number of nodes and the processing, transmission, and propagation delay.
• RF Velocity of  Propagation:  Computes the RF velocity based on the medium permittivity
• Transmission Delay: Computes the delay based on length of packet and transmission rate.
• Data Transfer Time Calculator Computes the time to transfer an amount of data based on the data transfer rate.
• Simplified Propagation Delay: Computes the delay between two router based on the distance and the transfer rate.
• Surge Impedance Loading: Computes the power loading of a transmission line.
• Amdahl's Law: Computes the total system speedup time based on the improvement of one portion.
• Signal-to-Noise Ratio (SNR) calculator: Computes a relative measure of the strength of the received signal (i.e., the information being transmitted) compared to the noise.
• Compute Data Storage Needed: Computes the approximate amount of data storage needed based on a period of time and a data rate.
• Network Propagation Delay  Computes the propagation delay based on the positions of two routers and the propagation speed.
• Shannon-Hartley Theorem: Computes the theoretical upper limit data rate of a channel based on the bandwidth, receiver strength and channel noise.
• Cable dB Loss Budget Computes db loss based on length of fiber run and number of connectors.
• Voltage Resolution (Analog to Digital) Computes the Voltage Resolution of a measured analog signal over the nominal range [VL , VH] with a specified number of conversion bits.
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• Length of Cable with Sag: Computes the length of cable between pole accounting for the sag.