Multicast issue or not!!!

HI!!! I´m trying to stream 4 live tv channels throw RB433, RB433 UAH and RB600 as explained in the attached image (Scenario).

The problem is that when i try to add the second channel my first wlan doesn’t keep up with de data flow, example:

Sending 2 channels (7Mbps), the ethernet receives 7Mbps, but wlan transmits at lower rates. (No drops found or errors). See atached image.

The multicast works fine (PIM and IGMP-Proxy, i’ve tried both with success).
Any ideias?

Help woul’d be appreciated.

Thanks in advanced
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http://wiki.mikrotik.com/wiki/Manual:Multicast_detailed_example#Multicast_and_Wireless

If AP transmits multicast packet, packet is transmitted over air with multicast receiver address (and yes - only single copy of packet is transmitted no matter how many clients are registered). As there is no single recipient of packet, it does not get acked - therefore delivery is not reliable (no retransmissions in case somebody does not receive packet). Due to this unreliable delivery, lowest basic rate is used to ensure as reliable delivery as possible. So even if you can send unicast stream between AP and Station using 54Mpbs air rate, multicasts are sent only using 6Mbps air rate (assuming that 6Mbps is lowest basic rate).

Increase your lowest basic rate to get better wireless speeds. Keep in mind that this may keep clients with signals that aren’t stellar from connecting at all.

Increase your lowest basic rate to get better wireless speeds. Keep in mind that this may keep clients with signals that aren’t stellar from connecting at all.

OK, i’ve tried to find that option before with no success.
Where (in winbox) is that done?
Or assuming wlan3 where in terminal do I specify the lowest basic rate?

Going to try again (find via winbox ou configure via terminal)

I’ll post the result.

Thanks

HI!!!


It finally works!!!

I had selected lowest basic rate 6Mbps and 56Mbps…
I only had to deselect the 6Mbps :slight_smile:

Thanks for your help!!!