Studying TCP ' s congestion Window using NS
How to obtain TCP ' s CWND value
The most important value this determine the behavior of TCP is the congestion window size or traditionally Abrevi Ated as CWND
In NS, every
Simulates a network environment that contains two transport nodes s1,s2, router R, and data receive side D.Probably as shown:Source:Set NS [New Simulator]$ns Color 1 Blue$ns Color 2 RedSet NF [Open Out.nam W]$ns Namtrace-all $NFset nd [Open out.tr W]
Yes
The following is the Tcl code:
#Create a simulator objectset ns [new Simulator]#Set different color for dif flow$ns color 1 Blue$ns color 2 Redset tracefd [open example1.tr w]$ns trace-all $tracefdset namtracefd [open example1.nam w]$ns
The source of the file is the NS2 simple-wireless.tcl (~NS\TCL\EX\SIMPLE-WIRELESS.TCL): # Defines the options, setting some of the properties that the simulation requires. Set Val (chan) channel/wirelesschannel; # Wireless channel type set Val (prop)
DNS: People are accustomed to the memory domain name, but the machine between each other only IP address, domain name and IP address is one by one corresponding, the conversion between them is called Domain name resolution, domain name resolution
Simply put, NS-2 is a network simulator, so it is often used in the Teaching of network courses.NS-2 is opensource, the earliest version is running in Linux/Unix, and later with Windows VC compiled run version, but since 2.26, I gave up support for
I learned the book "ns and network simulation" compiled by Mr. Xu leiming. Now I just read it again, but I still don't know much about it, after all, it is not that two weeks that the NS2. however, the examples in the examples have been completed
Ext: http://www.cnblogs.com/zcy_soft/archive/2013/09/23/3335235.html
DNS a record NS record MX record CNAME record txt record TTL value PTR valueConstruction Station noun Explanation: DNS a record NS record MX record CNAME record txt record TTL
A record, MX record, CNAME record, URL forwarding, NS record, dynamic record (RPM)
A record, MX record, CNAME record, URL forwarding, NS record, dynamic record (RPM) Table of Contents
Dns
A
Aaaa
The 5th chapter of Ns-3 Tutorial, tweaking 5, is studied today . Tweaking (NS3 coup) 5.1 using logging module
In the first.cc script has seen the use of logging statements, the following to see the specific situation of the logging
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