adopt broadcast ratio 255.255.255) the update uses multicast (224.0.0.9) to update Classful routing protocol Classless routing protocol. After a series of Route updates, each vro in the network has a complete route table, convergence. AS an internal Gateway Protocol (IGP), OSPF is used to publish route information between routers in the same autonomous domain (.
In the maintenance of network equipment, now a lot of maintenance information on the "Routing strategy" and "Policy Routing" these two nouns, but there are many maintenance technicians to these two nouns understand is not very thorough, can not accurately grasp the relationship between the two and the difference. This paper briefly analyzes the concepts between the two, and introduces some examples, hoping
Static Routing and dynamic routing are frequently used, and they also play an important role. When a Host application needs to send data packets to different network destinations, the router receives data information from an interface. The Network Layer checks this packet to determine the expected network to be sent. Then, the router checks its route table and uses the route table information to determine t
ASP. net mvc mavericks tour 3: Routing -- URL Routing, mvcrouting
Routing)ASP. net mvc has two main purposes:Matches HTTP requests sent from the browser,Another purpose isRespond to the appropriate URL to the browser.
3.1 match HTTP requests sent through the browser
First, let's take a look at the first purpose, that is, matching the HTTP request sent through the
With the development of the routing technology, the application of the soft routing technology is also more mature and stable. Many people use the soft routing technology, but it also brings problems such as disconnection, connection failure, and slow speed. This time I want to talk about the hardware used for soft routing
Static Routing
Static Routing refers to the routing information manually configured by the network administrator. When the network topology or link status changes, the network administrator needs to manually modify the Static Routing Information in the routing table. Static
Inside-to-Outside
? If IPSec then check input access list
? Decryption-for CET
? Check input rate limits
? Input accounting
? Policy routing
? Routing
? Redirect to web cache
? NAT inside to outside (local to global translation)
? Crypto (check map and mark for encryption)
? Check output access list
? Inspect (Context-based Access Control (CBAC ))
? TCP intercept
? Encryption
Outside-to-Inside
? If IPSec
Huawei VLAN Division, single arm routing and static routing enable all members to access the Internet
Huawei topology Map:
IP address planning as shown!
IP Address
VLAN Partitioning:
[Huawei]un in EN close Message center
[huawei]sysname SW1 Change switch name
[Sw1]inter VLAN 1 into the switch
[Sw1-vlanif1]ip address 192.168.0.10 24 with IP addresses
[Sw1-vlanif1]un Shut Open
[Sw1]vlan 2 Set
A key problem statement
(a) How does the ACL match the same subnet and the different mask routing entries? How do I match the same mask, different entries for subnets?
(ii) Why does a summary route cause the rollover of a BGP neighbor?
(iii) Why does the ACL not match the route entry when using Attribite-map?
(d) How to use Advertise-map,suppress-map,unsuppress-map,attribute-map and Route-map five-way map? Give an example.
(v) The two schemes of
In summary, there are six solutions to the routing loop problem in distance vector routing protocol:
1. Define the maximum value;
2. horizontal segmentation technology;
3. Route poisoning;
4. Reverse route poisoning;
5. Control the update time;
6. Trigger the update.
The following describes the implementation principles of various solutions:
1. Define the maximum value:
Distance Vector
RoutingProgramSystem. Web. routing is located in. NET Framework 3.5 SP1 and is separated from ASP. net3.5 MVC. Therefore, routing can also be used in traditional web form projects.
ASP. NET routing allows you to process URL requests that are not mapped to physical files in Web applications. By default, ASP. NET routing
I. Routing concepts in the Web APIThe role of the route is explained in a word: The controller,action that handles the request is found through the URI of request and assigns a value to the action's parameters .Default routes in the Web API:" API Default " "api/{controller}/{id}"new {id = Routeparameter.optional});Each route (routing rule object) in the route table contains a route template. The default
PHP MVC Framework Routing Learning notes, MVC Framework Routing Learning Notes
Referring to the PHP development of the web, nature is inseparable from the development framework, the development framework provides us with a flexible way to develop, MVC layer separation, business decoupling, etc...
First of all, let's talk about the MVC framework's routing capabil
Custom routing rules in the CI framework and custom routing in the ci framework. Custom routing rules in the CI framework. in the ci framework, a URL corresponds to the class in the controller and the method in the class, for example, www. custom routing rules in the t CI framework and custom
Static routing
The concept of static routing
(1) The most original configuration of the route, pure manual, easy to manage, but time-consuming, generally used in small enterprises or middle-down enterprises
(2) The disadvantage of static routing is not to dynamically reflect the network topology, when the network topology changes, the administrator must manual
main function is to exchange network accessibility information with other BGP systems. BGP is an external Gateway Routing Information Protocol that enables non-loop exchange of routing information between autonomous systems. Based on classless Inter-Domain Routing (CIDR), BGP has been developed to support aggregation
problem by carrying the as path information. In order to control the propagation of routes and the selection of routes, attribute information is included for routing. TCP is used as its transport layer protocol, which improves the reliability of the protocol. Port number 179. BGP-4 supports CIDR(Classless Inter-domain routing), andthe introduction ofCIDR simplif
On-Demand Routing principle (ODR-On Demand Routing)ODR uses Cisco's Discovery Protocol CDP to transmit network information between the branch router and the central router. It is only applicable to the central-branch topology environment. The vrolan may have connected several LANs, however, there is usually only one WAN connection instance that reaches the central router: basic configuration: listen tint s0
Labels: routing and switching technology
Lab 01: Layer-3 switching and Dynamic Routing
Lab Objectives:
I. layer-3 switching for communication between different VLANs
2. layer-3 switching and dynamic routing for communication in the entire network environment
Lab Environment:
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