1. A switch generates a mapping between the source MAC address of a received data frame and the receiving interface, and adds the mapping to the MAC address table.
2. The switch searches for the destination MAC address of the frame in the MAC table to determine through which port to forward this frame.
3. If the destination MAC address is not found in the MAC address table, the switch forwards the frame to all its interfaces except the interface that receives the frame. The process is called flooding.
The broadcast and multicast frames are forwarded to all the interfaces.
After an optical signal is transmitted over a specific distance, the optical signal pulse is widened because of the positive dispersion accumulated in the system. As a result, the system transmission performance is seriously affected. A DCM is a passive device using a dispersion compensation fiber (DCF). With a DCM, signal pulses are compressed because a DCM has inherent negative dispersion that can offset the positive dispersion of the transmission fiber.
According to implementation principles, DCMs are classified into two types: DCMs using a DCF fiber and DCMs using fiber Bragg grating (FBG).
A Streaming topology can be developed and compressed into a JAR file by using Storm APIs or referring to the CQL syntax manual. After the topology is submitted to the Streaming cluster, Nimbus automatically assigns it to the Supervisor node for processing. The topology logs can be viewed on the UI through the port provided by Logviewer.
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