collision domain and broadcast domain

In the LAN technology, the conflict domain and the broadcast domain these two words have the very big influence to the network performance, below lets us see how these two words affect the network performance. The conflict domain of LAN technology If you want to drive out of the freeway, but every time you try, there

whose hub indicates that the LED light on the collision has always been on, but surprisingly, I have never heard any of the users in that segment complain.I know it may be hard to believe, but it's true! Figure 1-1 Simultaneous transmission of two nodes in Ethernet2. LAN Technology broadcast DomainBefore discussing the broadcast

First, the concept of understanding:1. Conflict domain (physical segmentation):A collection of all workstations connected on the same wire, or a collection of all nodes on the same physical network segment, or a collection of nodes competing for the same bandwidth on the Ethernet. This field represents the area in which the conflict occurs and propagates, and this area can be considered a shared segment. In the OSI model, conflict domains are consider

1st ). Before sending data, each site must first check whether the network is idle and send data if it is idle. Otherwise, continue listening until the network is idle. If the two sites detect that the media is idle and one frame of data is sent at the same time, the data frame conflicts and the data frames of both sites are damaged. At this time, the two sites will use the "Binary Index backoff" method to wait for a random period of time before listening and sending.　　In Figure 1, host a only

idle and send data if it is idle. Otherwise, continue listening until the network is idle. If the two sites detect that the media is idle and one frame of data is sent at the same time, the data frame conflicts and the data frames of both sites are damaged. At this time, the two sites will use the "Binary Index backoff" method to wait for a random period of time before listening and sending. In Figure 1, host A only wants to send A unicast packet to host B. However, due to the

processing is required. All hosts connected to the bus constitute a broadcast domain.Www.2cto.comFigure 1 Traditional Ethernet2. Repeater)Repeater appears as a product mainly for two reasons:First, expand the network distance and regenerate the attenuation signal.Second, Ethernet Interconnection between coarse and fine coaxial cables is realized.Although the repeater can extend the signal transmission distance and achieve the interconnection of the t

Conflict domain: each node in the same conflict domain can receiveAll sent frames (Note: All sent frames, not just broadcast frames); Broadcast domain: the network can receive messages from any device.Broadcast FrameSet of all devices; The conflicting

A collision domain conflicts a domain (collision domain) over Ethernet. If two computers on a CSMA/CD network communicate simultaneously, the CSMA/CD network is a conflict domain. If the network segments in the Ethernet are connec

perspective of the relevance of the telecom business, "Monster.com" does not have relevance in this business field, the Smart Market has long chosen a word that is easy to understand to better express the postal website. "phone.com", "garden.com", and "art.com" can score a high score in terms of business relevance, "Monster.com" is relatively poor. 3. Clear Pronunciation is also important.Is it difficult to confuse this domain name when it is playe

HTTP request process-domain name resolution and TCP three-way handshake to establish a link, domain name resolution tcp We enter the http://www.baidu.com in the browser to enter the Baidu homepage, but this is a domain name, can not accurately locate the location of the server, so you need to resolve the domain name to

Web Server terms and definitions such as virtual space, domain name resolution, a record, MX record, cname record, and TTL Terms for renting space and website serversWhat is a domain name server?Domain Name Server (DNS server) is the server that provides domain name resolution. It is generally provided by the upper-la

corresponding permissions is created, you can add a user name to the group.Http: // 61.132.72.53/lb5000/usr/30/30 _406_21.1.jpg A user in the movie-Con group has the permissions of the group and the permissions of the group.2. Modify the server port You can change the port of the FTP server (cluster 0-65535) in the domain attribute displayed after the selected domain. The default value is 21. Http: //

, select "Message" From the Drop-down menu, or press F2 directly, but it must be in the case of a selected domain.Yun_qi_img/30_406_23.1.jpgIn the message window that appears, click "Broadcast Message" or press the key combination ctrl+b the message's compose window appearsYun_qi_img/30_406_24.1.jpgYun_qi_img/30_406_25.1.jpgYou can also stand alone-to send a message to a visitor, select the field, and then select the activity:Yun_qi_img/30_406_26.1.jp

# to Login to Workgroup = Freeos # tell Samba to talk to domain controller # for authentication Security = Domain # Specify the server to get authenticate # from. You can specify the # NetBIOS # Names of the servers or simply # put in a ' * ' here and let # Samba Find the server through broadcast Password Server = PS1 PS2 # Make sure the Samba is using encryp

IPv6 is the next generation network protocol that replaces IPv4. It has many new features and functions. Domain Name System (DNS) is the basic architecture of the Internet. The new features of IPv6 also require DNS support. Therefore, DNS must be upgraded to meet IPv6 requirements. This article analyzes the architecture of IPv6 DNS, IPv6 address resolution, IPv6 address automatic configuration and plug-and-play, and IPv4 to IPv6 transition. research.I

Quickly locate and attack the SQL Server in the domainDirectly locates and attacks the SQL Server in the domain without scanning Share a novel PowerShell script. Instead of scanning, it uses the sps-service Principal Name in the Active Directory to identify and attack SQL Server in Windows. Initially, I wrote this script to help escalate and locate dangerous data during penetration testing. However, I will show the Attack and Defense sides how this sc

implemented through the alias address of the network interface. The procedure is as follows: 1. Edit the/etc/tcp file. For example, vi/etc/tcp 2. Find the ifconfig command line that contains the NIC device file name net0. 3. Add the ifconfig command line after the command line to set another IP address (the second IP address and the third IP address…) for the NIC ......). If you set the 2nd IP addresses of the network adapter to 201.168.0.2 and the mask to 255.255.255.0, you can add the followi

just mentioned, you should understand that the probability of collision (guess) has been significantly improved. Click here to open an image in a new window Click here to open an image in a new window In addition, there is a small detail-the source port!Imagine that ns.victim.com will send a request to ns.google.com, And the UDP header should be like this: Copy code Source Address: ns.victim.comDestination Address: ns.google.comSource Port: 1256 (cho

, VTP domain name information) 2, version number (using VTP version number, as long as the server and client mode to verify that the version is consistent) 3, Configuration modification number (default is 0, after modifying the configuration of the VTP domain, this number will add 1) 4, the VLAN it knows (that is, all VLANs in VTP) 5, some of the parameters of each VLAN (VLAN related information) Note:

also for example, if Baidu used "bai-du.com" for the domain name, and baidu.comIn my hand, there will be a lot of internet users entering www.baidu.com every day instead of accessing the www.bai-du.com, which is obvious ." -"Only in special places, suchA few days ago in the outdated saw an outdated brother of rice www.0000-00-00.com such "-" it is more interesting to use. However, if you want to make a website, this