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Am I Being Throttled by Eir/GO MO

  • 26-06-2023 07:55PM
    #1
    cf52
    Registered Users, Registered Users 2 Posts: 18 ✭


    hi folks, I installed a Poyntings LPDA -92 directonal antenna a week or so ago....I am seeing speeds of up to 120 Mb/S, unbelievable....what is more unbelievable is the same tdk ac 1200 sim router speed test gives 1.5 - 2.5-3.5 Mb/S most of the day, no difference in positioning of the antenna etc....would anybody offer a possible explanation, other than the folks at Eir throttling the connection? It's an unlimited data sim, and I don't even live permanently at the property....



Comments

  • #2
    Cork981
    Registered Users, Registered Users 2 Posts: 891 ✭✭✭Cork981


    Sounds like the signal isn’t strong enough at the routers location and it’s not doing carrier aggregation.

    Eir won’t aggregate B1 or B3 until the RSRP hits around -103dBm.

    The 2-3mb sounds like your only using a single carrier either B20 or B28 both of which have 10mhz of bandwidth.



  • #3
    lotas
    Registered Users, Registered Users 2 Posts: 948 ✭✭✭lotas


    Is EIR/GoMo looking at the TTLs for traffic and doing any traffic management on it? I remember reading about how to set your TTL to higher so that your carrier thinks it's coming from a phone, not a router...

    long and the short of it: TTL usually is set to 64 from a phone (or computer, or whatever). When it goes through a middlebox (router, etc) that TTL goes down 1... so, starts at 64 from your phone, hits your carrier goes to 63, through your carrier network, etc, and all is good. But if you are using a router, your phone/laptop/desktop/etc starts with 64, hits your router (63) then your carrier (62). your carrier sees 62, "knows" it's coming through a router, and then manages that traffic differently... You could tweak your router or device to tweak the TTL so that by the time it hits your carrier, it's 63, not 62, and your carrier is none the wiser...

    But does anyone know if EIR/GoMo do this, or did I just waste everyones time with this info?



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