Hello Guest, if you are reading this it means you have not registered yet. Please take a second, Click here to register, and in a few simple steps you will be able to enjoy our community and use our OpenViX support section.
Results 1 to 10 of 10

Thread: Gigabit ethernet connection?

  1. #1

    Title
    Junior Member
    Join Date
    Sep 2017
    Posts
    26
    Thanks
    9
    Thanked 0 Times in 0 Posts

    Gigabit ethernet connection?

    Hi All,
    Just something I've noticed on my OS Mega, I've connected the ethernet connection to 600Mb/s powerline adaptors. From there, it goes to another powerline adapator of the same type, then directly into a Gbit ethernet port on my router. When I check the link speed on the reciever, it says '100mb/s'.
    Is GBit ethernet only possible when directly connected to the GBit ethernet port? (i.e. without the powerline adaptors?)

    Thanks

    dcGT

  2. #2
    birdman's Avatar
    Title
    Moderator
    Join Date
    Sep 2014
    Location
    Hitchin, UK
    Posts
    7,764
    Thanks
    235
    Thanked 1,654 Times in 1,303 Posts
    Quote Originally Posted by dcGT View Post
    When I check the link speed on the reciever, it says '100mb/s'.
    That means it's negotiated a 1Gb/s hardware protocol to whatever is at the other end of the Ethernet cable. So it is capable of transmitting data at up to 1Gb/s.
    So it will transmit at 1Gb/s, but only in short bursts if the rest of the network path is slower (as it will have to wait for the rest of it to catch up).

    A bit like a broadband speed advert - capability and actuality will differ.

    EDIT. Sorry - I misread that. It's negotiated 100Mb/s, not 1GB.s. As noted - that means the PowerLine adaptor has a 100MB/s interface.
    Last edited by birdman; 15-11-17 at 23:26.
    MiracleBox Prem Twin HD - 2@DVB-T2 + Xtrend et8000 - 5(incl. 2 different USBs)@DVB-T2[terrestrial - UK Freeview HD, Sandy Heath] - LAN/USB-stick/HDD

  3. The Following User Says Thank You to birdman For This Useful Post:

    dcGT (16-11-17)

  4. #3

    Title
    Senior Member
    Join Date
    Mar 2014
    Posts
    290
    Thanks
    100
    Thanked 73 Times in 59 Posts
    What powerline adaptors are you using?

    TPLink and others used to sell 500Mbps adaptors with only a fast ethernet port (ie 100Mbps) on the back of them.

    Powerline adaptors are a bit of a marketing bodge - 500Mbps as quoted is total speed for all the homeplugs which you'll never usually actually see in anything other than test bench circumstances.

    If the powerline adaptor only has the fast ethernet port (not gigabit) then that's why the box reports 100Mbps as that's all the port it's into can negotiate, and like Birdman says the majority of the time unless streaming media files or IPTV it'll be sat idle.

  5. The Following User Says Thank You to aido For This Useful Post:

    dcGT (16-11-17)

  6. #4

    Title
    Junior Member
    Join Date
    Sep 2017
    Posts
    26
    Thanks
    9
    Thanked 0 Times in 0 Posts
    Thanks for the response Guys. I'm using TP Link 600Mb/s adaptors. Thinking of it now based on the response, what circumstances will I ever get more than 100Mb/s out of them? If both ends are 1Gb ports, the only bottleneck can be the powerline adaptors.

    What's the point in buying powerline adaptops greater than 100Mb/s if there are no situations where you will get more than 100Mb/s.

    I understand that it's unlikely I'll get near the advertised rates, but as said, it's negotiating a 100mb/s connection from the start (not 1Gb/s). In addition, i'm getting the full and consistent 100Mb/s transfer rate on the LAN, but no more.

    Thanks,

    dcGT

  7. #5
    birdman's Avatar
    Title
    Moderator
    Join Date
    Sep 2014
    Location
    Hitchin, UK
    Posts
    7,764
    Thanks
    235
    Thanked 1,654 Times in 1,303 Posts
    Quote Originally Posted by dcGT View Post
    What's the point in buying powerline adaptops greater than 100Mb/s if there are no situations where you will get more than 100Mb/s.
    The 600Mb/s rating will be how fast they can talk to each other (theoretical maximum).
    So if you had four of them you could have two pairs running a connexion at 100Mb/s, etc....
    MiracleBox Prem Twin HD - 2@DVB-T2 + Xtrend et8000 - 5(incl. 2 different USBs)@DVB-T2[terrestrial - UK Freeview HD, Sandy Heath] - LAN/USB-stick/HDD

  8. #6

    Title
    Senior Member
    Join Date
    Feb 2013
    Posts
    131
    Thanks
    16
    Thanked 15 Times in 15 Posts
    your bottle neck can also be the Ethernet cables, I think you need cat6
    Technomate-TM-Nano-3T - Vu+Solo - Dm800HD - DM518

    Inverto MultiConnect LNB system - 1m Orbital dish - zone 2 28e dish

  9. #7

    Title
    Senior Member
    Join Date
    Mar 2014
    Posts
    290
    Thanks
    100
    Thanked 73 Times in 59 Posts
    Quote Originally Posted by chris16v View Post
    your bottle neck can also be the Ethernet cables, I think you need cat6
    Cat5e is plenty for gigabit traffic! People selling Cat6 cables are selling snake oil for home users - it's for 10Gbps!

  10. #8

    Title
    Junior Member
    Join Date
    Feb 2016
    Posts
    10
    Thanks
    3
    Thanked 0 Times in 0 Posts
    CAT5e does gigabit

  11. #9

    Title
    Junior Member
    Join Date
    Sep 2017
    Posts
    26
    Thanks
    9
    Thanked 0 Times in 0 Posts
    Yes I think Cat 5e does support Gigabit.
    I've been doing a bit of looking into this and it seems the marketing on these things is great. I would consider myself reasonably technical but I was fooled
    The 600Mb/s does indeed seem to be a measure of how fast the plugs communicate with each other, which, if I read this correctly, is completely pointless if both ends of the line operate on a 100Mb/s interface (which is what my 600mb/s home plugs have.) It seems you have to go to the Gigabit version of the product to get the Gigabit interface on the plugs.

    Just FYI, the reason I was looking for more than 100Mb/s is not for streaming, but just for general local network transfers to and from the receiver.

    Live and learn I guess

    Thanks,

    dcGT

  12. #10
    adm's Avatar
    Title
    Forum Supporter
    Donated Member
    Join Date
    Sep 2014
    Location
    Southend on Sea, UK
    Posts
    1,621
    Thanks
    62
    Thanked 636 Times in 497 Posts
    Quote Originally Posted by dcGT View Post
    Yes I think Cat 5e does support Gigabit.
    The 600Mb/s does indeed seem to be a measure of how fast the plugs communicate with each other, which, if I read this correctly, is completely pointless if both ends of the line operate on a 100Mb/s interface (which is what my 600mb/s home plugs have.) It seems you have to go to the Gigabit version of the product to get the Gigabit interface on the plugs.


    The interconnect between plugs is likely to be a different transport format. Speculation: it may need to send more data for error correction as the transmission environment will be very noisy; being a single wire transmission (rather than a couple of pairs of twisted wires in a Cat5/6 cable) it can only send data one way at a time and therefore for bi-directional communication it has to send data faster.
    Xtrend ET10K, 2 x satellite tuners 28.2 (Sky FTA), 2 x hybrid (UK Freeview), Zgemma H9S (satellite)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.