I have a Beaglebone Black deployed at a customer site that is reporting a 
large number dropped RX packets in ifconfig:

Link encap:Ethernet  HWaddr c8:a0:30:34:b8:09
          inet addr:10.121.6.30  Bcast:10.121.6.255  Mask:255.255.255.0
          inet6 addr: fe80::caa0:30ff:fe34:b809/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10201019 errors:0 dropped:*2478997* overruns:0 frame:0
          TX packets:3304697 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1240516851 (1.1 GiB)  TX bytes:250440920 (238.8 MiB)
          Interrupt:40

Are there any settings that may be adjusted on the Beaglebone that may help 
or is this likely a cabling/network issue at the site or a defective NIC?   
Would it be common for the default network settings to not be able to 
handle incoming packets fast enough (installed BeagleBone Debian Image 
2014-04-23)?   I installed ethtool, but it appears that most options are 
not supported in this Debian image.  When I ping anything on the local 
network, I'm getting 5-10% dropped packets.


Thanks,
Danny

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