Hadoop implements the Distributed File System (HDFS). HDFS has the characteristics of high fault tolerance and is designed to be deployed on low-cost hardware. In addition, it also provides high-throughput application data access, which is suitable for applications with large data sets. HDFS relaxes POSIX requirements, and data in the file system can be streamed.

-From Baidu Encyclopedia

Personal understanding: a distributed file storage system+a distributed computing framework, on which there are many open source projects to enrich its functions, such as Hbase, hive and so on.

Simply put, if the port is configured in trunk mode, data of multiple vlan will be allowed to pass through the port, and the ports interconnected between switches are generally configured as trunk. I haven't heard of the 9600 model. If we are talking about 2960 series switches, it depends on the version, and some of them need to be packaged first. Take the configuration mode as an example.

International g0/ 1

Switch port trunk encapsulation point 1q (type this first, then type the next)

Switched port mode relay

The default native vlan after configuration is 1.

Some versions do not require configuration encapsulation.

Just switch the port mode relay directly.