#2724 NORM Update.: Wireless multicast more unreliable than expected.

[Zarro Boogs per Child]

#2724: Wireless multicast more unreliable than expected.
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  Reporter:  dwmw2     |       Owner:  marcelo 
      Type:  defect    |      Status:  new     
  Priority:  normal    |   Milestone:  Update.2
 Component:  wireless  |     Version:          
Resolution:            |    Keywords:          
  Verified:  0         |  
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Comment(by ashish):

 A successful Multicast/broadcast frame transmission depends on the
 environment as there is no MAC level ACK or retries for these frames. So,
 it will be more useful, if sniffer log can be attached, while observing
 this problem.

 By default, wireless firmware uses basic CCK rates for multicast/broadcast
 traffic and is set to 2Mbps. You can experiment with different multicast
 rates by calling the following API. However, increasing multicast rate may
 even reduce throughput if environment is noisy.

 1. To get default multicast rate
 iwpriv msh0 mesh_get_bcastr

 2. To set 36Mbps multicast rate
 ipwriv msh0 mesh_set_bcastr 0x48.

 The following can be used to map data rates to rate index used by this
 command.

 mesh_set_bcastr index     Rate in Mbps
 0x02    1
 0x04    2
 0x0B    5
 0x16    11
 0x0C    6
 0x12    9
 0x18    12
 0x24    18
 0x30    24
 0x48    36
 0x60    48
 0x6C    54

-- 
Ticket URL: <https://dev.laptop.org/ticket/2724#comment:3>
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