The purpose of this document is an explanation of what is defined in the IEEE 802.11s standard, and the states of current implementations based on this standard. 802.11s is the standardization of mesh networking. That is to say that it defines a protocol for mobile devices where they can communicate amongst themselves even when not directly connected, and can route data beyond their immediate environment.
Category: Online
on p2p in the browser
The final project I want to accomplish this semester in my distributed computing independent study, is to come up with a way to access p2p capabilities from within the browser. I was originally hoping to do this with JavaScript API that relied behind the scenes on the new flash p2p protocol, rtmfp. The protocol has… Continue reading on p2p in the browser
Torrent Auditor
I have now migrated the python torrent client that I’ve been working on to a google code project. It lives at torrentauditor and now has basic support for actually downloading torrent files. I researched the bittorrent extension protocols this week, but was somewhat frustrated by what I found. Most of the interesting ones are implemented… Continue reading Torrent Auditor
Downloading Torrents
I extended the work from last week in order to actually get data from a swarm. The main change is that new sockets are now allocated for each connection, state is remembered, and the client can actually get so far as to download data from the other peers. What needs to happen still is that… Continue reading Downloading Torrents
Auditing Bit torrent
One of the strengths of bit torrent is that the primary data transfer protocol is entirely separate from the advertisement protocol. This also has created a strain both in discovering other users who have data, and keeping accurate reports of data that was transfered. The first issue is one that has been developed for extensively,… Continue reading Auditing Bit torrent
Talking to Kad
[python] # Standalone Mainline Kad Client # import socket import time import sys import getopt import random import benc import binascii import select client = "AZ"+str(0x05)+"31"; UDPSocket = socket.socket(socket.AF_INET,socket.SOCK_DGRAM); targetID = "".join(chr(random.randrange(0, 256)) for i in xrange(20)); myID = "".join(chr(random.randrange(0, 256)) for i in xrange(20)); reqs = 0; knownHosts={}; knownPorts={}; def sendData(data,host,port): global UDPSocket,reqs; reqs… Continue reading Talking to Kad
The “Mainline Kademlia” protocol
Kademlia is a description of the network interactions and rpc calls that can form a distributed hash table. Today, these kad based DHTs are one of the most common forms of distributed storage. However, since kademlia does not specify the application level protocol to make calls, it is instead implemented on top of existing application… Continue reading The “Mainline Kademlia” protocol
Distributed Computing and Me
The moniker distributed computing has become a broad catchall term that has been applied to everything from parallel computation to the auto configuration of ad-hoc networks. In order explore the technical problems in this field it is necessary to clearly define what exactly the field is, and to this end I want to elaborate on… Continue reading Distributed Computing and Me
The One-Day Website
I spent today building http://setTimeout.net, a website that I was inspired to create yesterday evening. I set myself the goal of finishing the project in one day, I’ve managed to get done enough in that time period, and I’m pretty happy with how it turned out. I came up with several ideas for how to… Continue reading The One-Day Website
Launchpad Update
I am almost done rewriting my launchpad code so that it can be run without a kernel module. Instead, I’ll be using libusb, which is a reasonably common and cross-platform library for interacting with USB devices. I’m having a couple issues with callbacks and polling, but I’m making pretty steady progress, and should have a… Continue reading Launchpad Update