ccie routing and switching

stream.Data link------through a variety of control protocols, the error of the physical channel into error-free, reliable transmission of data frame data-linked sniperThe network layer--------Select the most appropriate path for the message or packet through the communication subnet through the routing algorithm.The transport layer--------provide users with reliable end-to-end error and flow control to ensure the correct transmission of the messageSe

, allowing only one chance to process the error. Unfoundstate will be passed as a parameter to the event listener function, the following example can see the three properties of Unfoundstate. Use Event.preventdefault () to prevent template parsing, // somewhere, assume lazy.state have not been defined$state. Go ("Lazy.state", {a:1, b:2}, {inherit:false c3>}); // somewhere elsescope.on (' statenotfound 'function// "Lazy.state" // {a:1, b:2}// {inherit:false} + default options})statechangesuc

) broadcast domain (broadcast address: 255.255.255.255 )3 ) Basic functions of the switcha , learn --mac Address (Dynamic -- default behavior, Manual, paste)b , forwarding -- based on MAC Address Table ForwardingC , filtering -- Data4 ) features of the switcha , mixed port rate ( 10m/100m/1g self-adapting)b , high port density (many interfaces --24/48 , StackingC , based on low cost per portD , fast switching speede , CacheEach interface of a router c

student can get adequate counseling time;2. Specially arranged teaching and actual combat experienced expert teacher every week Six Sunday from Guangzhou to Shenzhen to attend classes; 3. Arrange the tutor for two nights a week to get the students to master the knowledge in the shortest time.Of course, but also inseparable from the efforts of the students and cooperation, they opened the company-school-Home 3.1-line learning mode, weekend weekends are devoted to learning. After the first week,

As a network manager, it is the most common task to configure commands on routers and switches. The purpose is to execute commands and adjust parameters, allows routers and switches to run as required by network administrators. This is almost the operation performed by the network administrator every day. Which of the following methods can be used to manage network devices? Which one is simpler and which one is more efficient? This is mainly based on the actual use of the network administrator.

Use Telnet to manage network devices This management mode requires the configuration of commands on the routing and switching devices, which is less than the command configured in the SSH management mode. The following figure uses the topology of Figure 1 as an example to configure the vswitch so that you can manage the PC and use Telnet to manage the configuration of Cisco 4506. The management VLAN 20 conf

frames, and potentially causing unrecoverable errors when critical.MAC Address Table jitter: that is, the MAC address table is unstable because copies of the same frame are received on different ports on the switch. If the switch consumes resources on a copy-unstable MAC address table, the data forwarding function may be weakened."Port cost" network access to the switch model is various, the same switch different ports its rate performance is not consistent, so the data from a device to B devic

a kind of invisible touch of the media "ether" flooding, and then the existence of the ether is falsified, then Ethernet and the ether is what is the connection?There are online jokes that the father of the Ethernet Metcalfe in his doctoral dissertation is the study of APRA Net, but his thesis defense has not been, is considered to be lack of theoretical support, but his technology has been a lot of manufacturers, and then Metcalfe think of their papers did not have a very uncomfortable, So I d

After the new switch is bought, all need to be simple configuration to meet the unit network operation, after the configuration of the device will need to put it where it should be placed, but in the future we need to view or modify this device, we need to use remote login to configure it. Let's talk about the specific configuration of remote login.First, you need to use a dedicated configuration line (console line) to connect the deviceSecond, configure the line of another section of the connec

Tags: routing switching technology HSRP working principle three-layer Exchange STP function DHCP serviceFirst, the questionDay 011. What is a Vlan? What does VLAN do? is the interface of the default switch in that VLAN? What kind of Vlan??2. What is Trunk? What is the mode of Trunk? How to negotiate?3. What is the role of EtherChannel?4. What is DHCP? What is the role of DHCP?Day 021. What is the three laye

1.1. Ionic routing mechanism: state1.2. Ion-nav-viewTrigger State Migration² Call the $state.go () method, which is an advanced convenience method;² Click on the link containing the UI-SREF directive ² Navigate to the URL associated with the state.1.3. Ionic in the inline templateSingle-page implementation of multiple modules,Angularjs at compile time, the id attribute value of the inline template and its contents, respectively, as key and value, are