It's Microsoft now so it's been blessed. Yes, it's a peer to peer based system though they maintain POPs for their SkypeOut (to/from landlines) service. Skype is stealthy. I find it to be a great quickie network troubleshooting tool. Nothing else works but Skype? Then you probably have a DNS issue. Skype can stay alive without DNS. Though pinging a known IP address is also an easy test.
Greg On Sep 14, 2011, at 6:28 PM, Mike Hammett wrote: > Skype is P2P, literally. The makers of Kazaa made Skype. > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > On 9/14/2011 3:17 PM, Josh Luthman wrote: >> >> If the p2p is acting like Skype traffic there is nothing you can do. If the >> two protocols are getting similar, a finer Skype match will work. If Skype >> changed their methodology then you'll need to come up with a layer 7 rule. >> >> Where did you get the rules you have now? >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> >> On Wed, Sep 14, 2011 at 4:11 PM, Greg Ihnen <[email protected]> wrote: >> Yeah, on the high latency, high jitter low bandwidth connection we have here >> the prioritization and bandwidth limiting of the various protocols and kinds >> of traffic makes all the difference between Skype being unusable to being >> almost perfect. >> >> On a side now, I had to downgrade from ROS 5.6 to 4.17 because the log was >> full of error relating to the L7 processing. There's a thread over on the MT >> forum. >> >> Greg >> On Sep 14, 2011, at 3:05 PM, Josh Luthman wrote: >> >>> >MT's L7 Skype regex >>> >>> The rules inside of this monster? >>> >>> http://wiki.mikrotik.com/wiki/Basic_traffic_shaping_based_on_layer-7_protocols >>> >>> Do you have to prioritize Skype? >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> Suite 1337 >>> Troy, OH 45373 >>> >>> >>> On Wed, Sep 14, 2011 at 3:28 PM, Greg Ihnen <[email protected]> wrote: >>> Guys, >>> >>> I've gotten so much out of these forums. I appreciate you letting me >>> be a part of them. I had an idea which I don't know if it would be of >>> interest to anyone here but I hope it is. It has to do with bandwidth >>> management and P2P and Skype and their interaction in MT's RouterOS. >>> >>> I've noticed some P2P traffic gets picked up by the L7 regex for >>> Skype. Since anyone doing bandwidth management for both Skype and P2P is >>> probably trying to prioritize Skype and de-prioritize P2P and MT's >>> confusing the two is going to have negative consequences. Having the P2P >>> traffic get into Skype's queue does the exact opposite of what I'm trying >>> to do. >>> >>> You'll see when MT's L7 Skype regex is misidentifying P2P traffic as >>> Skype traffic is the inbound and outbound traffic will be greatly >>> unbalanced, much more so than even if one side was doing voice and video >>> and the other side was just doing voice. I was seeing hundreds of Kbps down >>> and one or two Kbps up on the Skype queues. I knew that wasn't right. I >>> looked and sure enough there was bit torrent activity going on. I wonder if >>> some of these bit torrent clients don't try to make their traffic appear to >>> be traffic of legit apps. >>> >>> I'm using a modified version of Butch's script. What I'm doing with >>> regard to Skype and P2P to correct this problem is the part of the script >>> that detects P2P traffic keeps a list of the local users's IPs. I have the >>> part of the script that prioritizes Skype ignore the user's traffic if >>> they're one of the P2P'ers. That means not only does their P2P work poorly >>> but their Skyping is not going to be as good as it would if they weren't >>> messing around with P2P. I'm very heavily trying to discourage P2P here. >>> >>> Greg >>> ----------------------------------------------- >>> Wireless Users Group [email protected] >>> >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> WISPA Wants You! 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