In fact, the example of the book is copied again, but at least understand the NS2 workflow, put aside the details, all NS2 simulation should be based on this process.
After the installation of NS2 encountered two problems, this installation is
1.using: In order to avoid using namespaces every time, it is necessary to define a namespace by using the use of the content within the namespace for a specific area of the declaration using A::t;//using declaration
Use it again to invoke the name
Basic requirements of this lecture
* Mastery: The role and definition of namespaces, and how to use namespaces.* Understanding: Using the early function libraryKey points and difficultiesThe role and definition of namespaces, and how to use
Many platform platform provides cloud parsing function, the so-called cloud parsing is a DNS server, in general, after the domain name provider buys a domain name, will specify an NS record, for example, in the domain name provider buys the domain
ObjectiveIn the previous article, "to understand the basic principles of the Docker network", we have learned about the 4 kinds of drivers that Libnetwrok offers in Docker, but there are some limitations in each approach. Assuming you need to
varDef_pi=Math.PI;//3.14159265359varDef_2pi=2*Math.PI;//6.28318530712vardef_pi180=Math.PI/180.0;//0.01745329252varDef_r=6370996.81;//radius of Earth//Using Arc angle method to calculate the distance between two points on the map and inconsistent
During this time, due to the working relationship, we need to study the working principle of DNS Server Resolution and find this article on CNNIC.Article, Reprinted now
Architecture of CN Domain Name Resolution Service
[SOURCE DOWNLOAD]Indispensable Windows Native-C + +: namespacesWebabcdIntroducedEssential C + + of Windows Native
Name space
ExampleCppNamespace.h#pragmaOnce#includestring>using namespacestd;//define a namespace, define a class in it,
DNS (Domain Name System) is a distributed database that maps domain names and IP addresses on the Internet, allowing users to access the Internet more conveniently, instead of remembering the number of IP address strings that can be directly read by
Create Network namespace
# IP netns Add Blue
# IP Netns List
Blue
Add a network port to namespaceCreate Veth First
# IP link Add veth0 type Veth peer name Veth1
In the current namespace you can see Veth0 and veth1
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