IDC management diary-
I'm curious. Are there so many people surnamed Wang?
Lenovo's after-sales service has come several times, all of which are surnamed Wang. The master who arranged the line is also surnamed Wang... This reminds me of the amazing old Wang next door.
This morning, I encountered the following problems:
1 problem:
Because the vswitch plug-in is not enough, an additional vro is added. Two vswitches and one small route are connected by the main road, and the two vswitches and the small route are connected to the computer in the data center;
So the question is (which is the best excavator school ?...)
First, you have to modify the wan of the vro. Otherwise, the wan of the two routers conflict with 192.168.1.1 by default, which may cause some hosts to fail to access the network (not displayed this morning, I don't understand );
Solution:
Change the wan of the two routes to different ones. do not conflict with each other;
2. Problem:
Second, the problem arises when the operating system and software in the IDC are installed on the same network...
Large switches and large routes are both high-configuration and gigabit-level, so you don't have to worry about the speed of 20 Mbit/s (transfer a system for 15 minutes ), however, the simultaneous transmission speed of two computers with a small route is about KB (transfer to the same system for 2 hours), which seriously slows down the overall speed. The simultaneous transmission speed is the same as that of bottled water, the speed usually depends on the slowest one;
Solution:
For simultaneous transmission, separate transmission: first, transfer the large switch, and then plug the two lines into the large switch, separately for the two machines;
3. Problem:
Prevent students from being wireless;
Solution:
Hide wireless (implemented by disabling ssid broadcast) and set a password; see http://jingyan.baidu.com/article/154b463150a8b128cb8f416b.html
4. Problem:
Network cable problems: there are too many old connections, with the test found that the indicator light is so bright: 1 2 3 4 5 3 7 8
That is to say, 3 is highlighted twice, but 6 is not bright. After changing the crystal head many times, it is useless (I thought the problem of the crystal head at the beginning). It may be where the line 6 is broken down.
Solution:
Replace the location of Line 6 (Green Line) with the line at another location.
Principle:
Standard sequence of common network headers: Orange, orange, green, white, blue, blue, white, green, brown, white
We only use four, 1, 2, 3, and 6, namely, orange, orange, green, white, and green. As long as the four sequences and lines are smooth, there is no problem,
Now there is a problem with the green line, so I replaced it with other lines. I changed it to the order of orange, orange, blue, blue, brown, brown, green, and green, in this way, the problematic Green Line will not be used,
As a result, we can access the Internet normally .......................
