To whom it may concern
I am Joseph Folorunso, a master's degree student at Anglia Ruskin University, Chelmsford, United Kingdom. I am on a research of which my topic is based on Software-defined Network (SDN). I am using OpenFlow Tutorial and my setup details are as follows; - My machine OS is window 7 with 64-bit, Processor is 2.40GHz, a RAM of 6GB, free hard disk space of 382GB, - Virtualization software is VirtualBox, Xming, PUTTY for Windows 7+, Virtual Machine image is (OVF format, 64-bit, Mininet 2.0). After setting up the Network Access, I was able to access VM via SSH. In setting up the Xterm, on issuing command 'xterm -sb 500' there was an error that says; 'No absolute path found for shell : 500' on the alternative step to run X11 in the VM console window, when the command 'sudo apt-get update && sudo apt-get install xinit flwm' was issued, there was an error that states that 'failed to fetch http://mirrors...<UrlBlockedError.aspx> and also ' some index files failed to download...' Also trying to create network in the Virtual Machine in an SSH terminal, the following commands were issued; 'sudo mn --topo single, 3 --mac --switch ovsk --controller remote' and it came out with the error that states that 'cannot Concatenate 'str' and 'int' objects'. Please help me to look carefully into the above feedback and get back to me as soon as possible. Thanks in anticipation. Best Regards Joseph
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