Title: How to Calculate the switching capacity [Print this page] Author: GTAC-Sophia Time: 2023-7-21 16:13 Title: How to Calculate the switching capacity Switching capacity (backplane bandwidth) refers to the maximum amount of data that can be processed between switch interfaces and data buses. Switching capacity indicates the overall data exchange capability of the switch. When the switch achieves line speed (maximum forwarding speed), the switching capacity is equal to the number of ports multiplied by the corresponding port rate multiplied by 2 (for data input and output).
Application scenarios and problems solved:
The switching capacity of a switch is like the number of lanes on a highway. If a 24-port switch wants to achieve maximum data forwarding, it should have 24 lanes. However, if the total number of lanes on a24-port switch is less than 24, then the switch cannot achieve line-speed forwarding. In other words, the performance of this switch is defective and does not meet the standard requirements.
The switching capacity is mainly used to measure the performance of a switch. Generally, the larger the switching capacity of a switch, the better its performance. This provides an important parameter for users to select devices and is also included in the device specifications for reference. The problem is how to solve it:
What is the switching capacity of a switch with 24100Mbps Ethernet ports and 4 1Gbps optical ports?
( 100M*24+1000M*4)*2=( 2400+4000)*2M=12800Mbps=12.8Gbps
Switching capacity 212.8Gbps: This switch can achieve line-speed forwarding. Note: 'b' (bit) represents a bit (1 binary 1 or0 = 1b). 'B' represents a byte, 1B = 8 bits.
<b>bps</b> stands for bits per second, e.g. 0bps means transferring 10 bits per second. <b>Bps</b> stands for bytes per second, e.g. 10Bps means transferring 10 bytes per second. 1G =1000M = 1000000K = 1000000000.
All our switches meet the standard switching capacity requirements.
For example, RG-NBS1824GC comes with 24 Gigabit Ethernet ports.
24*1000*2=48Gbps=The switch is a line-speed forwarding switch, which meets the standard requirements. Please feel free to use it.
Welcome to Ruijie Community (https://community.ruijienetworks.com/)