After the long time, I work for a network communication middleware, as a weekend researcher.

In order for this work, I tried to change my note PC to a HUB who has network packet monitoring function, but I thought

"It is annoying"

So I tried to check the prices of some commercial HUB with mirroring port.

I knew that Amazon sold the HUB with five gigabit Ethernet ports and mirroring port for 4000 yen.

-----

When I asked the request for proposal of HUB, the HUB was a big metallic frame, and it cost more than 200,000 yen. Of course, it was impossible to buy it privately.

Now, it is going to be a small box in my hand, it cost 4000 yen.

After three seconds, I put the button for purchase down.

-----

It is worth for me, but I am not satisfied with the fact.

Somehow, I become to feel that my job (IT engineer) seemed to be looked down.

"My job might be not important for the first time, and it might be me, who have mistaken for the long time."

I am now sick of a slight persecution complex.