The skill of network management sharing of Advanced NMS

Source: Internet
Author: User
Tags socket

Network management in the Internet café can get the biggest benefit is to accumulate experience, in the Internet café will encounter players to network management response to a variety of problems, network management from the problem to accumulate experience.

As a hotspot of internet cafes, network management skills are also accumulated from this, the following talk about advanced network management skills.

1, network segment and flow

A server, there are two of files read and write very frequently workstation, when the server only installed a network card, the formation of a separate network segment, the network segment of all the equipment response is very slow, when the server installed two network cards, the formation of two network segments, the two files read and write extremely frequent workstations are connected in different network segments, The response speed of all the devices in the network has increased markedly. This is because the increased network segments share the original more concentrated data flow, thus increasing the network response speed.

2, line sequence of twisted pair

The distance between the server and the switch from 5 meters to 60 meters, the result is not connected anyway, why? Ethernet generally uses two pairs of twisted-pair lines, arranged in 1, 2, 3, 6 position, if the use is not two pairs of lines, but the original pair using the line used separately, will form winding, resulting in a larger crosstalk ( NEXT), which affects network performance.

The reason for this failure is that 3, 6 do not use the pairing line, in the case of long distance from the connection. After RJ45 the head back to the line, everything returned to normal.

3,wan and grounding

The power of the router is not intended to plug in the mains socket, the result of 64KDDN is not unicom. The Telecommunications bureau to check the line is very normal, and finally check the power of the router grounding voltage, found wrong, switch back to the UPS socket, everything back to normal.

4, the power of the router

The power plug of the router is broken, which causes the packet to be lost frequently, and when the ping is connected, the time is good or bad. Everything is OK after replacing the power cord. WAN connection because of the remote line, so for grounding requirements more stringent, to ensure strong anti-interference, to achieve the specified connection rate, otherwise there will be strange fault.

5, Network and hard disk

The SCSI interface and the high speed hard disk are selected, and the hard disk array card can improve the read and write performance and security of the hard disk greatly. Do not make Low-speed SCSI devices (such as CDs) share the same SCSI channel as the hard disk.

Advanced Network management Skills Small series on the introduction here, I hope to help you, of course, not only these, will continue to update, pay attention to 5636 Internet cafes value-added alliance to solve more problems encountered by network management.

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