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change 5g band from NSA t...
Forum: Mobile Broadband
Last Post: Seán
Yesterday, 10:04 AM
» Replies: 1
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MikroTik Chateau 5G inter...
Forum: Mobile Broadband
Last Post: Seán
Yesterday, 09:49 AM
» Replies: 2
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Choosing 3G/4G outdoor an...
Forum: Mobile Broadband
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19/09/2021, 06:27 PM
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Chateau LTE or 5G? Or sta...
Forum: Mobile Broadband
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14/09/2021, 08:50 PM
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B535 or B818?
Forum: Mobile Broadband
Last Post: Seán
03/09/2021, 08:26 PM
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MikroTik Chateau CA / Nei...
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31/08/2021, 02:04 PM
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5G routers, antennae and ...
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Starlink
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B818-263 bridge mode
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Huawei B818-263 setup
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Last Post: Lynx
23/08/2021, 08:39 AM
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  change 5g band from NSA to SA
Posted by: qatar2022 - Yesterday, 04:06 AM - Forum: Mobile Broadband - Replies (1)

hi everyone
on chateau 5g how i i can change 5g band from NSA to SA? and is there any option to change antenna from internal to external that’s comes with device?
with regards

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  Chateau LTE or 5G? Or stay with B818?
Posted by: gabor - 10/09/2021, 11:49 AM - Forum: Mobile Broadband - Replies (3)

Let me please use the expertise in this forum for my reception situation in Austria. This is how my LTE world looks like:


Type. Cell-ID Provider PLMN. Signal Quality Frequency (MHz) Bandwidth
4G LTE 17cde-2b T-Mobile Austria 23203. -102 dBm -14 dB. 927.5 / 882.5 5 MHz
4G LTE 17cde-17. T-Mobile Austria 23203. -107 dBm -11 dB. 816.0 / 857.0. 10 MHz
4G LTE 17cde-0d. T-Mobile Austria 23203. -109 dBm -16 dB. 1815.0 / 1720.0 20 MHz
4G LTE 12702-15. T-Mobile Austria 23203 -107 dBm -16 dB 816.0 / 857.0. 10 MHz


The distance to the tower 17cde-xx is 6.2km. The area is rural, there are trees obstrusting the direct view to the tower.
My first attempt was setting up an AVM FritzBox 6890, a very popular CAT6 device in german speaking countries. Given the very poor reception, download rates around 20Mbit/s seemed to be what I could expect (locking the modem to band 3).
When I found a cheap Huawei B818-263, I gave it a try, based on the experiences of users in this forum.
This router is a real game changer: now I am consistently achieving 50Mbit/s to 60Mbit/s. Upload rates went up similarly.
Contrary to the FritzBox, I have achieved these download rates with zero configuration. Playing around with the settings only made things worse.

Now, I need to move towards an outdoor solution, since I need to move the router from it's present location.
The easiest solution seems to be getting 2 Poynting XPOL2 for 4x MIMO and recabling the B818-263 with 4 SMA connectors.
Considering that the B818-263 is a great modem but not the greatest router, I would switch it to bridge mode and use another router behind it.
Since I need to invest into a router, anyway, I am considering buying a Mikrotik Chateau to act as, both,  a modem and a router. Together with 2 Poynting XPOL2 antennas, I should be able to achieve even better download rates.
For the moment, there is no 5G coverage in my area, but the network is only 2 villages away and my operator is moving fast. Though for the moment, LTE should be enough, also because I don't think that I can take any advantage of the cat20 modem in the 5G version.
I would welcome your thoughts. Thanks, Gabor

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  B535 or B818?
Posted by: Kofus - 02/09/2021, 07:42 PM - Forum: Mobile Broadband - Replies (3)

Hi,

I recently changed my mobile company and i must return the Huawei B525-23a to the company.
Right now with the B525-23a i am achieving speed of DL 130Mbps and UL 40Mbps ussing CA with B7 + B3.
In my zone there are B1, B3, B7 and B20 and good signal ( in B7 i have -5 RSRQ, -84 RSRP and 21 SINR using a MIMO Yagi)

I will get more speed on B535 or B818 ?

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  MikroTik Chateau CA / Neighbour / MIMO cell monitor scripts
Posted by: Seán - 31/08/2021, 02:04 PM - Forum: Mobile Broadband - No Replies

MikroTik's 4G LTE routers have the ability to show neighbouring 4G cells, a feature many others lack such as the popular Huawei and TP-Link routers. This is very useful for checking the signal and quality readings of the aggregated cells, particularly when repositioning the router or adjusting an external antenna. The MikroTik Chateau router series can also report readings of the different MIMO layers (via AT chat), which is also useful when using individual antennas. See this post on how to get 4x4 MIMO with external antennas on the Chateau 5G.

After upgrading to the V7.1rc1 firmware, I ran into a problem with the built-in cell-monitor command. It now only lists a few neighbouring cells, even on V7.1rc2 at this time of posting. Another issue is that the main LTE status page does not show the signal readings of the aggregated cells, requiring the user to cross-check the aggregated cells with the (broken) cell-monitor list.

As a workaround, I wrote a few scripts to show aggregated cells, MIMO layers (primary carrier only) and neighbouring cells, all which refresh every second. Up until recently, I have never written MikroTik scripts, so these scripts will probably look messy to any seasoned MikroTik user.

Notice: These scripts have only been tested in 4G LTE mode with an active 4G connection. They will not produce any output in 3G WCDMA. In 5G NSA mode, they will only show LTE cells as I don't have any 5G coverage at this time to update for 5G read-outs. Please do not run in them in a production environment.

How to add a script

  1. In Winbox, go into System -> Scripts.
  2. Click the '+' icon.
  3. In the "Name:" field, give it a name like "camonitor".
  4. Copy and paste the script in the white area below, then click 'OK'.
  5. Repeat the steps for each script, giving each a separate name for step 3.

How to run a script

In the terminal, type:
/system script run [script name]

For example, if the script is called "camonitor", type:
/system script run camonitor

The script will run in a loop, refreshing the readings every second, much quicker than the Router OS built-in cell-monitor command. Type 'Q' to stop or 'P' to pause. Press 'D' to dump the readings above. Note: It does not save them to file.


Carrier Aggregation Cell Monitor

Display the RSRP, RSRQ and SINR readings of the primary (PCC) and aggregated (SCC) cells. At present, the A03 firmware (preinstalled on the Chateau 5G) has a bug that causes incorrect SINR read-outs for the aggregated cells. This is reportedly fixed in the A04 firmware.

   

Code:
# Print headings
local headings do={
    /terminal style syntax-noterm
    put "CA  PCI\tBAND BW\tEARFCN\tRSRP\tRSRQ\tRSSI\tSINR"
    /terminal style none
}
$headings

# Bandwidth to MHz conversion
set $bandwidth {"6"="1.4";"15"="3";"25"="5";"50"="10";"75"="15";"100"="20"}

# Reset counters
set $count 0
set $pcount 0

# Loop until a keystroke
do {
    # Reset cursor position and note previous line count
    for n from=1 to=$count step=1 do={/terminal cuu}
    set $pcount $count
    set $count 0
    
    # Get the list of carrier aggregation cells from using the modem at-chat command
    set $cells [pick [/interface lte at-chat lte1 input="at+qcainfo" as-value ] 0]

    # Loop through each LTE cell
    set $i [find $cells "QCAINFO"]
    while ($i>0) do={
        set $cell [ toarray "" ]
        set $output ""
        set $i ($i+9)
    
        # Retrieve the raw type, EARFCN, bandwidth, band, PCI, RSRP, RSRQ, RSSI and SINR
        for n from=1 to=9 do={
            set $j [find $cells "," $i]
            # set $output ($output . [pick $cells ($i+1) $j] . "\t")
            set ($cell->$n) [pick $cells ($i+1) $j]
            set $i $j
        }
        set $sinr ([tostr ([tonum [pick $cells ($i+1) [find $cells "\r" $i]]] * 2 - 20)])
        set $band ("B" . ([pick ($cell->4) 10 ([len ($cell->4)]-1)]) . " ")

        # Prepare and display output
        if ([find ($cell->1) "pcc"]=0) do={set $output "PCC"} else={set $output "SCC"}
        set $output ($output . " " . ($cell->6) . "\tB" . ([pick $band 1 3]) . " " . \
            ($bandwidth->($cell->3)) . "M\t" . ($cell->2) . \
            "\t" . ($cell->7) . "\t" . ($cell->8) . "\t" . ($cell->9) . "\t" . $sinr)
        /terminal el; put $output
    
        # Go to the next LTE cell
        set $i [find $cells "QCAINFO" $i]
        set $count ($count+1)
    }

    # Clear any extra lines from the previous run
    /terminal el
    for n from=($count+1) to=$pcount step=1 do={put ""; /terminal el}
    for n from=($count+1) to=$pcount step=1 do={/terminal cuu}

    # Check for any keystroke, then wait one second
    /terminal el; put "-- [Q quit | D dump | P pause]"
    set $key ([/terminal inkey timeout=1] & 223)
    set $time [/system clock get time]
    /terminal cuu;

    # Keystroke D (68) = dump, P (80) = Pause, Q (81) = Quit
    if ($key=68) do={/terminal el; set $count 0; put "-- $time\n"; $headings}
    if ($key=80) do={/terminal el; put "-- Paused" ; /terminal inkey; /terminal cuu; }
} while (key!=81)
/terminal el


Neighbour Cell Monitor

Works much like the Router OS cell monitor, but refreshes the readings every second. It lacks the age column. It will display the full list of neighbouring cells even on V7.1rc1 and V7.1rc2.

   

Code:
# Print headings
local headings do={
    /terminal style syntax-noterm
    put "EARFCN\tPCI\tRSRQ\tRSRP\tRSSI"
    /terminal style none
}
$headings

# Reset counters
set $count 0
set $pcount 0

# Loop until a keystroke
do {
    # Reset cursor position and note previous line count
    for n from=1 to=$count step=1 do={/terminal cuu}
    set $pcount $count
    set $count 0
    
    # Get the list of neighbour cells from using the modem at-chat command
    set $cells [pick [/interface lte at-chat lte1 input="at+qeng=\"NEIGHBOURCELL\"" as-value ] 0]

    # Loop through each LTE cell
    set $i [find $cells "LTE"]
    while ($i>0) do={
        set $output ""
        set $i ($i+4)
    
        # Retrieve the EARFCN, PCI, RSRQ, RSRP and RSSI, then print these
        for n from=1 to=5 do={
            set $j [find $cells "," $i]
            set $output ($output . [pick $cells ($i+1) $j] . "\t")
            set $i $j
        }
        /terminal el; put $output
    
        # Go to the next LTE cell
        set $i [find $cells "LTE" $i]
        set $count ($count+1)
    }

    # Clear any extra lines from the previous run
    /terminal el
    for n from=($count+1) to=$pcount step=1 do={put ""; /terminal el}
    for n from=($count+1) to=$pcount step=1 do={/terminal cuu}

    # Check for any keystroke, then wait one second
    /terminal el; put "-- [Q quit | D dump | P pause]"
    set $key ([/terminal inkey timeout=1] & 223)
    set $time [/system clock get time]
    /terminal cuu;

    # Keystroke D (68) = dump, P (80) = Pause, Q (81) = Quit
    if ($key=68) do={/terminal el; set $count 0; put "-- $time\n"; $headings}
    if ($key=80) do={/terminal el; put "-- Paused" ; /terminal inkey; /terminal cuu; }
} while (key!=81)
/terminal el;


MIMO Layer Signal Readings

With an AT chat command, the modem can display the RSRP, RSRQ and SINR readings of each MIMO layer for the primary cell. This is particularly useful when checking or adjusting multiple antennas, such as with 4x4 MIMO when using the high frequency bands. In 2x2 MIMO, the 3rd and 4th layer will show -140 for the RSRP.

   

Code:
# Print headings
local headings do={
    /terminal style syntax-noterm
    put "MIMO\tL1\tL2\tL3\tL4"
    /terminal style none
}
$headings

# Reset counters
set $count 0
set $pcount 0

# Loop until a keystroke
do {
    # Reset cursor position
    for n from=1 to=$count step=1 do={/terminal cuu}
    set $count 3
    
    # Get the RSRP, RSRQ and SINR readings using the modem at-chat command
    set $rsrp [pick [/interface lte at-chat lte1 input="at+qrsrp" as-value ] 0]
    set $rsrq [pick [/interface lte at-chat lte1 input="at+qrsrq" as-value ] 0]
    set $sinr [pick [/interface lte at-chat lte1 input="at+qsinr" as-value ] 0]

    set $i 7
    set $output "RSRP\t"
    for n from=1 to=4 do={
        set $j [find $rsrp "," $i]
        set $output ($output . [pick $rsrp ($i+1) $j] . "\t")
        set $i $j
    }
    /terminal el; put $output

    set $i 6
    set $output "RSRQ\t"
    for n from=1 to=3 do={
        set $j [find $rsrq "," $i]
        set $output ($output . [pick $rsrq ($i+1) $j] . "\t")
        set $i $j
    }
    set $output ($output . [pick $rsrq ($i+1) [find $rsrq "\r" $i]])
    /terminal el; put $output

    set $i 6
    set $output "SINR\t"
    for n from=1 to=3 do={
        set $j [find $sinr "," $i]
        set $output ($output . ([tonum [pick $sinr ($i+1) $j]] * 2 - 20) . "\t")
        set $i $j
    }
    set $output ($output . [([tonum [pick $sinr ($i+1) [find $sinr "\r" $i]]] * 2 - 20)])
    /terminal el; put $output

    # Check for any keystroke, then wait one second
    /terminal el; put "-- [Q quit | D dump | P pause]"
    set $key ([/terminal inkey timeout=1] & 223)
    set $time [/system clock get time]
    /terminal cuu;

    # Keystroke D (68) = dump, P (80) = Pause, Q (81) = Quit
    if ($key=68) do={/terminal el; set $count 0; put "-- $time\n"; $headings}
    if ($key=80) do={/terminal el; put "-- Paused" ; /terminal inkey; /terminal cuu; }
} while (key!=81)
/terminal el;

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  Starlink
Posted by: Lynx - 26/08/2021, 11:55 AM - Forum: Mobile Broadband - Replies (1)

Any experiences / thoughts on Starlink? Looks horribly expensive at the moment:

Quote:Starlink's beta project is said to have an upfront cost of £439 (or $600) for equipment and setup, and a subscription cost of £84 ($120) per month thereafter — much more expensive than any other currently-accessible form of broadband.

https://www.uswitch.com/broadband/guides...-starlink/

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  Unable to log into mikrotik mobile app
Posted by: Installer3 - 14/08/2021, 09:01 PM - Forum: Mobile Broadband - Replies (5)

Great site with great info hoping someone could kindly help me with issues when trying to log into the mikrotik mobile app for android as i was hoping to use mobile app to configure the LHGG LTE6 Dish Router kit on site to help beam antenna to mobile mast for best signal  however when i enter log in details username and password saved as default ( admin) a message appears saying unable to log in  i have tried erasing and downloading app again however same message appears when trying to log in and scan for dish router devise i have the dish connected to a laptop with internet running however the phone app will not alllow me to log in via phone could someone please advise Thanks.

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  Getting 4g + but poor speeds
Posted by: dinjo - 12/08/2021, 04:25 PM - Forum: Mobile Broadband - Replies (9)

Hi there.

See below 
   
   

I am about 2Klm in urban area from three masts.

I am using a B535 with https://www.irishwireless.net/xpol-a0001 XPOL A0001 but without any improvement's.

Speed Test :

   

Should i be getting better speeds and signal, am i using the right antenna ?

I have switched to band 3 also and getting slightly better speeds.

I have tried with internal antennas also with B535 facing out the back windows facing direction of masts.

Any advice appreciated 

Many Thanks

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  MikroTik Chateau 5G internal/external antenna wiring for 4x4 MIMO
Posted by: Seán - 08/08/2021, 05:44 PM - Forum: Mobile Broadband - Replies (2)

The MikroTik Chateau 5G has no software configurable antenna settings, unlike the LTE12 model.  In its factory supplied state, the Chateau 5G only uses the two external antenna connections for 5G on band n77/78, i.e. the 3.6GHz band.  

To use the Chateau 5G with an external 4G antenna, it requires disassembly to either rewire the existing external antenna sockets or the addition of two 20cm or longer U.fl to SMA pigtails.  

To remove the cover, first remove the rear screw, then carefully separate the front seam at the top/bottom using a Spudger or similar DIY repair tool, until the front cover lifts off.  I came across this YouTube video for opening the Chateau LTE12, which has the same outer casing as the 5G model. 

The following shows the original wiring in the Chateau 5G:

   

Original internal antenna wiring:
A0 - Top-right antenna
A1 - Lower-right antenna
A2 - Small 4.6-5.9 antenna bottom wire
A3 - Small 4.6-5.9 antenna top wire
A4 - External antenna port ANT4
A5 - External antenna port ANT1
A6 - Top-left antenna
A7 - Lower-left antenna

Notes:  Take care when detaching a U.fl connector, gently tilt up from the wire end about 30 degrees and it should come off.  Do not use any tool as this can damage the port or connector.  These connectors only handle a few insertion/removal cycles.  When attaching, align the connector with the port, then push down.  The connector only requires a little force to snap on.

To convert the existing external antenna ports for 4G, swap antenna ports A0 and A1 with ports A4 and A5 on the PCIe card.  In this configuration, the router will use the external ports for 2x2 MIMO on all bands below 2690MHz, including 5G on these lower bands, such as n3.  If there is sufficient indoor coverage, it will use the internal antennae for 4x4 MIMO including on band n78, where available.  

Before powering on, ensure every port A0-A7 has an antenna attached.  Do not leave any ports empty. Before refitting the cover, ensure no wire passes over the circuit board or screw hole where it could get pinched inside the cover.


RG502Q-EA Cellular Antenna Mapping:

   

  • 1) LTE LB_TRX1 is activated when 5G NR FDD low bands are supported in NSA mode.
  • 2) LTE UHB frequency range: 3400–3800 MHz.
  • 3) LTE MHB_TRX1 is activated when 5G NR FDD middle/high bands are supported in NSA mode.
Source: RG50xQ Series Hardware Design

Frequency bands in table
LB = Low Bands - All bands up to 960MHz
LMHB = Low/Middle/High Bands - All bands up to 2690MHz
MHB = Middle/High Bands - All bands from 1452MHz or 1710MHz to 2690MHz
UHB = Ultra High Bands - Bands from 3400 to 3800MHz

4G LTE Antenna connections
TRX = Transmit/Receive - Antenna #1 for 2x2 or 4x4 MIMO
DRX = Diversity Receive - Antenna #2 for 2x2 or 4x4 MIMO
PRX MIMO = Primary Receive #2 - Antenna #3 for 4x4 MIMO
DRX MIMO = Diversity Receive #2 - Antenna #4 for 4x4 MIMO
TRX1 = LTE Antenna #1 paired with a 5G NSA connection over FDD LMH bands (see table notes 1 & 3 above)

5G NR Antenna connections
TRX(0) - Transmit/Receive - Antenna #1 for 2x2 or 4x4 MIMO
DRX(0) - Diversity Receive - Antenna #2 for 2x2 or 4x4 MIMO
TRX1 - Transmit/Receive #2 - Antenna #3 for 4x4 MIMO
DRX1 - Diversity Receive #2 - Antenna #4 for 4x4 MIMO


External antenna configuration suggestions

If you have an existing 2x2 MIMO external antenna and would like to upgrade to 4x4 MIMO, you can purchase another of the same or similar 2x2 MIMO external antenna.  Mount the second MIMO antenna at a 45 degree offset to the primary antenna.  For example, if the primary MIMO antenna is polarised vertical/horizontal, mount the second MIMO antenna at +/-45 degrees.  For two Poynting XPOL-2's, the bracket has a 45 degree mounting position to mount the second XPOL-2 with a 45 degree offset.  Further info in this post.

For 5G band n78, the antenna must cover frequencies to 3.8GHz.  If the existing antenna does not cover band n78, another option would be to purchase a second MIMO antenna that covers up to 3.8GHz and go with configuration #1 or #3 below, using the band n78 capable antenna for leads #3 and #4. 


Configuration 1 - For best 4G or combined 4G/5G in all coverage areas
  • 4G 2x2 or 4x4 MIMO on all 4G bands 1/3/20/28 and future bands 7/38/40
  • 5G 2x2 or 4x4 MIMO on all refarmed bands such as n1 or n3
  • 5G 2x2 MIMO on band n78 (No external upload MIMO)
A0 - Lead #1 of 2x2 or 4x4 MIMO antenna
A1 - Lead #2 of 2x2 or 4x4 MIMO antenna
A4 - Lead #3 of 4x4 MIMO antenna
A6 - Lead #4 of 4x4 MIMO antenna

Note: Eir and Three will use band 20 or 28 as the 4G carrier with a 5G NSA connection on band n3.  These low 4G bands use ports A0/A1, so this 4x4 configuration should work even where indoor 4G coverage is poor.


Configuration 2 - For best 5G band n78 performance, requires adequate indoor 4G coverage
  • 4G uses internal antennas
  • 5G 4x4 MIMO on band n78
A4 - Lead #1 of 4x4 MIMO antenna
A5 - Lead #2 of 4x4 MIMO antenna
A6 - Lead #3 of 4x4 MIMO antenna
A7 - Lead #4 of 4x4 MIMO antenna


Configuration 3 - For best aggregated 4G+5G upload performance in all coverage areas
  • 4G 2x2 MIMO on all 4G bands 1/3/20/28 and future bands 7/38/40
  • 5G 2x2 MIMO on band n78 with upload MIMO (faster upload than configuration #1)
  • 5G 2x2 MIMO on all refarmed bands such as n1 or n3
A0 - Lead #1 of 2x2 MIMO 4G antenna
A1 - Lead #2 of 2x2 MIMO 4G antenna
A4 - Lead #1 of 2x2 MIMO 5G n78 capable antenna
A5 - Lead #2 of 2x2 MIMO 5G n78 capable antenna

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  WAN Packet Overhead / Best MTU for 4G LTE?
Posted by: Lynx - 05/08/2021, 03:46 PM - Forum: Mobile Broadband - Replies (4)

I have been experimenting with QoS-CAKE, in which ideally the 'WAN packet overhead' is ascertained.

Since I use a VPN, by using 'tcpdump -vpni' on 'eth0' vs 'tun11' interfaces, I have determined that the OpenVPN encapsulation adds 53 bytes to each packet. 

But I need to enter the overhead associated with 4G LTE transmission. That is a harder number to determine.

Mindful of, e.g.:

Quote:Over the Iu-ps interface 1400 byte will avoid fragmentation. This is a conservative value to accommodate the protocol layer header overheads. The possible overheads over the Iu-ps interface (GTP/UDP/lower-IP) are the following: GTP main header = 12 bytes GTP extension header = 4 bytes UDP header = 8 bytes IPv4 header = 20 bytes (without optional IPv4 fields), or IPv6 header = 40 bytes (without optional IPv6 headers). The maximum headers size is then 12+4+8+40=64 bytes. The MTU for IPv4 and IPv6 is 1500 bytes. So, the maximum SDU size would be 1500-64=1436 bytes. 1400 bytes is a safer value.

https://www.etsi.org/deliver/etsi_tr/126...80000p.pdf

(as an aside, this makes me wonder: what is the optimal MTU set for a 4G LTE connection? Should this value be the same in OpenVPN?)

Any idea of the 'WAN packet overhead' for use with 4G LTE? I mean, what is the WAN packet overhead in bytes associated with the 4G LTE encapsulation around the payload? Is it fixed?

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  QOS?
Posted by: Lynx - 12/07/2021, 11:09 AM - Forum: Mobile Broadband - Replies (6)

Any thoughts or experiences with using QOS on 4G? My fancy new ASUS RT-AX86U with custom firmware (Asus-Merlin) supports various forms of QOS. 

Without any form of QOS, I see that using: http://www.dslreports.com/speedtest

I get a 'C' under bufferbloat.

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