MT and Satellite modems ... no control ?

RouterOS General
1

I was so busy since i run MT 18 months ago with controlling the download bandwidth and equalizing the band between users , i tried many examples , and searching for more all the time ..

BUT … does it really controll the download which came from a sat modem ? or its only controlling what is going out ..??

the major issue using the sat modem is limited band which is so expensive …sometimes limited number of connections .. so my(and most of sat modem ISP ) nightmare is how to share the SAT BAND among users equally .. and how to share the connections among them without exceeding the limitation , which sometimes leads to freez the modem ..

so i made a test , download a big file , limiting my band to 40k .. its ok i cant get more than 40k , but when i tourched the internet card which is connected to the sat modem it gets the full band !!! and thats mean the limitation is only applied to me .. i mean the connection between me and MT , leaving the sat connection as it is , whatever it reaches ,MT got nothing to do with it ..
lets say : my band is 1M , my IP is limited to 40k what i found is this :
internet provider=1M=> satellite =1M=> sat modem–1M–>MT–40k–> me
when downloading , MT cant control the steps with the red color ..
so why bothering myself filling mangle - Qtree with lines ??
many of you may find this as a known basics , i dont know , but i need someone who can aproove this or correcting my conclusion ..

2

Hello

I think best you print your firewall config and queue to show us.

What you ask should not be hard :slight_smile:

:slight_smile:

3

dear Equis , it got nothing to deal with the config ..
its the traffic flow between a user connected to MT router and the main sat provider ..
i’m not talking about how to control .. i’m asking can we really controll ?? do we have anything to effect a flow coming from the provider to MT passing through the sat modem ? which is the most important issue we suffering from it ..

4

OK, sorry I think I know what you say.

No Mikrotik cant control how fast a webserver is sending data to it (as far as I know)

But if MT is slowing down to you, I would say Sat to MT would only be slightly higher?

I am sorry I am no expert.

5

ok , i’m not an expert too ..

but as i can see that it doesnt worth to fill firewall with rules to equalizing the download , giving some packets high priority and the other packets lower priority , while there is no effect at all on packets flying from the sat modem to the provider !!! all effects will aplied on packets going out from MT to clients ..

6

Yes, but if a client is slowed, he will be slower in asking for more data si in affect wil slow doen fron sat too

7

you should dig more on how tcp protocol works. There are certain mechanisms in tcp which apply in this case (fast sender slow reciever). The reciever normally tells the sender how fast to send data and which effectively slows down the communication. Normally you should only see little bit of bursty traffic at the beginning of the connection but it will slow down eventually depending on the limits you set.