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With regard to a network outage today, ask the expert to point out where the problem is.

2025-01-24 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Network Security >

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Shulou(Shulou.com)06/01 Report--

Today, the company's network was suddenly interrupted, so I hurried to the computer room. First of all, I looked at the router. No problem, no problem with the switch. Because the network of this store was not laid by me, I didn't know the path of the network cable, so I found it slowly. The first thing is to do the basic topology diagram. External network-- switch 1-- intranet router-switch 1-- switch-2-- switch-3 LIUNX server-switch 1 Began to find lines again, poor I can only test their whereabouts one by one, (there is no line finder, bitter ah! Finally, the outer cashier line and the lines of the two office areas are then marked, and a piece of the cashier line is moved to switch 1. In the past 1 hour, I thought that as long as I connected the network cable, it would be all right. The network of the two office areas was still blocked and the cash register line fell off again. I began to suspect that it was the problem of the switch. because the H3C switch is on even if the working light is not on (I can't figure it out, but I've encountered it in other stores, the H3C switch is on, just change the switch. First of all, I changed switch 2 (connected to Office 1), but the main line was not lit. At the beginning, the light of the main line of the switch was on, and the machine on the cashier line could surf the Internet. Now I was sure that there should be something wrong with Office 1. After considering ARP***,ARP- A, I did not find a * * machine. Then I went to the computer room to restart switch 2. I turned on it unexpectedly, and then OK, after about an hour. There's this problem again. Run to the computer room to restart the routing OK. I went to lunch. But I don't know what caused the problem.

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