What is the line rate?
The line rate is a physical layer term that has nothing to do with the line cards or switching fabrics. It indicates the actual speed with which the bits are sent onto the wire (and is thus also known as physical layer gross bit rate).
What is line rate processing?
When a vendor (such as us) boasts about “line rate” performance, it means the device can process the maximum amount of data payload that can be serialized using the protocol shown above.
What is 10gbit?
10 Gigabit Ethernet (10 GbE) is a telecommunication technology that offers data speeds up to 10 billion bits per second. This means it does not need Carrier Sense Multiple Access/Collision Detection, the protocols used by early Ethernet networks for transmission access in LANs.
How do you calculate data rate?
Plug the amount of data (A) and transfer time (T) to solve for the rate, or speed (S), into the equation S = A ÷ T. For example, you might have transferred 25 MB in 2 minutes. First, convert 2 minutes to seconds by multiplying 2 by 60, which is 120. So, S = 25 MB ÷ 120 seconds.
How is line rate related to payload size?
This relationship is usually expressed as a percentage of the payload size to the maximum frame size, otherwise known as the protocol efficiency: Protocol efficiency = payload/frame size = 1500/1542 = 0.9727 or 97.3% Typically, the actual line rate is stepped up by a factor influenced by the overhead to achieve an actual target net data rate.
How are freight rates calculated on truckloadrate.com?
The data is collected via each carrier dispatch system after the freight has been billed which includes: line haul rates and fuel surcharge. The information captured by truckloadrate.com is compiled and updated on a monthly basis and freight rates are the computed average of all the aggregate data.
What is the fuel surcharge on a truckload?
This is usually measured in a dollars per mile rate (ex: $0.20 per mile). Some shipping customers will refuse to pay a fuel surcharge to truckload carriers. Carriers, in this case, will simply roll the fuel surcharge into the linehaul rate (ex: Base linehaul rate of $1.20 per mile is now $1.40 per mile using a $0.20 per mile fuel surcharge.)
What’s the difference between line rate and bit rate?
Two well-known physical layer technologies with different line rate and data transfer rate are ISDN (actually the I.430 recommendation) with 160 192 kbps line rate and 144 kbps data transfer rate and Gigabit Ethernet (the 802.3z recommendation) with 1.25 Gbps line rate (due to 8b/10b encoding ). This article is part of You’ve asked for it series.
