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Troubleshooting vswitch faults: for power supply faults and port faults, in the Internet era, you will often encounter troubleshooting vswitch faults. The following describes how to resolve vswitch faults, including how to solve power supply faults.

It's classic. I use it.DeploymentsThe deployments in this document were implemented in an isolated lab environment. the deployments were cleared by issuing the write erase command on the routers, and the clear config all command on the switches to

L2 exchange technology:The layer-2 switching technology is mature. The layer-2 switch is a data link layer device that can identify the MAC address information in the data packet and forward it according to the MAC address, the MAC addresses and

Throughout the history of network development, from manageable to intelligent, from high performance to multiple applications, from single data transmission to voice/Image/Multi-media applications, etc. Today's network technology development speed

Some small size USB flash drives are too small to use, and it seems a pity to lose them. However, after a small transformation, we can use our computer to get a powerful router, which not only saves the money to buy a route, but is basically

In the BGP Route Selection protocol, you can filter the BGP Route Selection and update. To do this, you need to use the prefix list. I. prefix list features: (1) it can be incrementally modified. We know that we cannot delete an entry in the general

LAN switch full contact for you to explain the Catalyst series, about Cisco LAN switch maintenance and configuration application skills. This article mainly introduces the basic maintenance of the megast6000 series, Catalyst5000 series, Catalyst6000

From the data, we can see that the bandwidth of the Ethernet switch stack is dozens of times the speed of the switch port, which can effectively improve the network performance, when the number of ports that a single switch can provide is

The most widely used switch for small and medium-sized enterprises is the 24-port Gigabit Switch. Therefore, when purchasing a switch, you must make full consideration. A clear purpose is to save costs for everyone. In network equipment, switches

I believe that many users have some knowledge about the security settings of wireless routers. This article focuses on this aspect and gives a comprehensive explanation. Compared with wired networks, wireless networks allow us to get rid of the

The premise for the commercial use of IPv6 is that IPv4 addresses are exhausted. For this reason, we urgently need the IPv6 protocol to improve this situation. So how does IPv6 distribute DNS servers? Next we will analyze the principles in depth.

A Cisco router is a commonly used routing product in large and medium-sized networks. As a core router, It is the soul of the entire network. If the Administrator is improperly set, the security deployment may be taken over by attackers if it is not

When a Cisco router forgets or loses the enable password, there are two methods to restore it, depending on the series of products you are using. Method 1 You can use this method to restore the following vrouters: cisco 2000 Series, 2500 series, 300

In the face of more and more complex network applications, many networks will encounter one or more faults. Now, let's analyze the DNS troubleshooting process. This section describes the precautions, troubleshooting procedures, and detailed

Source: http://blog.csdn.net/cqq/ Add file comments to compressed files under rar command line There are a lot of rar compressed files in the past two days, Add comments. I checked the help of rar and found that it is very convenient to do this

The DNS server provides services to convert host names and domain names to IP addresses. Why do I need to convert host names and domain names to IP addresses? This is because when a client on the network accesses resources on a serverThe Host Name

According to the selection of IPSec-based VPN, more and more enterprises are seeking for flexible and secure wide-area communication methods. In the complex environment of internet connections and IP networks, these new communication requirements

Vpn Principle and Implementation-virtual Nic build vpn virtual Nic support the physical layer by implementing one character device, so that the application layer and the physical layer are connected through this character device, the character

◎ Comprehensive layer-7 testing The integrated protocol analyzer fundamentally solves the problem that has plagued network administrators for a long time. It can be tested from the physical layer to the application layer. That is, it starts from the

The installation of protocol-based (for example, Gigabit Ethernet) networks boosts the rapid increase in the use of optical cables in Lan, which can meet the increasing bandwidth and transmission speed requirements. Multimode Optical fiber cables,