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Knomax

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  1. Like
    Knomax got a reaction from MainLifeline in Preliminary Lag Compensation Experiment Findings   
    Another tip that maybe helps...
    If your modem has the ability to prioritize packets like ACK,SYN,FIN,RST....
    Prioritize ACK and SYN...it helps me to lower jitter...games sends many ACK and SYN packets.
     
    From wikipedia.org...
     
    << Connection establishment:
    To establish a connection, TCP uses a three-way handshake. Before a client attempts to connect with a server, the server must first bind to and listen at a port to open it up for connections: this is called a passive open. Once the passive open is established, a client may initiate an active open. To establish a connection, the three-way (or 3-step) handshake occurs:
    SYN: The active open is performed by the client sending a SYN to the server. The client sets the segment's sequence number to a random value A. SYN-ACK: In response, the server replies with a SYN-ACK. The acknowledgment number is set to one more than the received sequence number i.e. A+1, and the sequence number that the server chooses for the packet is another random number, B. ACK: Finally, the client sends an ACK back to the server. The sequence number is set to the received acknowledgement value i.e. A+1, and the acknowledgement number is set to one more than the received sequence number i.e. B+1. At this point, both the client and server have received an acknowledgment of the connection. The steps 1, 2 establish the connection parameter (sequence number) for one direction and it is acknowledged. The steps 2, 3 establish the connection parameter (sequence number) for the other direction and it is acknowledged. With these, a full-duplex communication is established.>>
     
     
    .................................................................................
     
    Connection termination:
     
    The connection termination phase uses a four-way handshake, with each side of the connection terminating independently. When an endpoint wishes to stop its half of the connection, it transmits a FIN packet, which the other end acknowledges with an ACK. Therefore, a typical tear-down requires a pair of FIN and ACK segments from each TCP endpoint. After the side that sent the first FIN has responded with the final ACK, it waits for a timeout before finally closing the connection, during which time the local port is unavailable for new connections; this prevents confusion due to delayed packets being delivered during subsequent connections.   A connection can be "half-open", in which case one side has terminated its end, but the other has not. The side that has terminated can no longer send any data into the connection, but the other side can. The terminating side should continue reading the data until the other side terminates as well.    
    It is also possible to terminate the connection by a 3-way handshake, when host A sends a FIN and host B replies with a FIN & ACK (merely combines 2 steps into one) and host A replies with an ACK.  
     
    ..........................................
     
    So in both situations ACK and SYN packets must have big priority.
     
    And if your modem/router has the ability to set up TCP Timeout  set it at 90 ms.....your console/server doesn't need to send FIN or RST packet to close the connection....
    Your modem will "drop"  this connection....so less packets travelling....less internal jitter.
     
    Think of that....
    You shoot a person...you send a packet that  a "bullet" leave from you (ACK)....server confirms to you with ACK/SYN  that "really" you shoot a bullet....now your router must send a FIN packet to close this connection and after a ACK packet!!!!
    If your modem can drop these connections it doesn't needs to send packets...less traffic to your network and much easy to handle that.
     
    I hope i do not confuse you.
  2. Like
    Knomax reacted to Netduma Liam in NEW R1 FIRMWARE: 3.0.207   
    Hey Testers,
    We've got a new R1 beta firmware for you guys to dig in to!
    https://www.dropbox.com/s/8z4kcynmo3glplp/DumaOS-R1-3.0.207.sig?dl=0
    We'd suggest a factory reset after the upgrade to ensure you're starting from a clean slate, let us know how you get on!
    Change log:
    Fixed issues with Adblocker and Connection Benchmark Fixed issues where the GUI doesn't load properly Fixed issues with Wi-Fi backend Fixed other issues with Network settings Added stability improvements to QoS Fixed Device Manager crashing issue
  3. Like
    Knomax got a reaction from Kostas83 in ANNOUNCEMENT: DUMAOS 3.0 IS HERE   
    Thank you very much i start working on it.
     
  4. Like
    Knomax got a reaction from Netduma Fraser in ANNOUNCEMENT: DUMAOS 3.0 IS HERE   
    Thank you very much i start working on it.
     
  5. Like
    Knomax reacted to Asentrix in Q&A General Problems And Solutions   
    1.4
     
                      
    Q: I've tried everything , my issue isn't listed here!
    A: Leave a comment below or simply make a thread.
    Some times new issues arise , and a solution can only be found if developers are notified.
    Here's a list of current admins / developers / moderators
    • Zennon - Administrator
    • Fuzzy Clam - Moderator
    • Dillinger - Moderator
    • Netduma Ian - Administrator & CEO
    • Netduma Fraser - Administrator / Tech Support
    • Netduma Luke - Administrator & CEO
    • Crossy - Administrator
    (Sorry if I left someone out!)
     

    Q: I think my netduma is defective , how do I get a refund!
    A: Before you request a refund , I suggest exhausting all possible options.
    Try absolutely everything before requesting a refund ,  99% of problems can and will be resolved easilly.
    If you're 100% sure you need a refund or replacement , you can contact support here
    Click here to contact support
    Never give your personal information to anyone on the forums unless they're representatives of netduma.
     
     

    I tried to cover everything I could think of.
    If I've forgotten something , I'll make sure to add it in the future.
    If anyone has any suggested problems and solutions , I would be glad to add it to the thread!

    Thanks for reading , stay safe and have fun gaming!
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