getting packet dropperd on interface

Benjamin benjo11111 at gmail.com
Sun Oct 16 05:14:02 UTC 2011


  Hi,

my output of command :

ethtool -g em1

Ring parameters for em1:
Pre-set maximums:
RX:        4096
RX Mini:    0
RX Jumbo:    0
TX:        4096

Current hardware settings:
RX:        1024
RX Mini:    0
RX Jumbo:    0
TX:        1024

before current value for RX and TX are 256 and i increased it by 1024 
for both RX and TX. But still we having packet loss on interface.

How to verify that buffer full for RX and TX?

Regards,
Benjo



> What does ethtool -g em1 say? A very common reason of dropping packets 
> is that the rx and tx buffers have been full. In this case, you can 
> increase the count with ethtool -G switch and check again.
>
> -- Soham
>
> On Sat, Oct 15, 2011 at 4:47 PM, Benjamin <benjo11111 at gmail.com 
> <mailto:benjo11111 at gmail.com>> wrote:
>
>      Hi,
>
>     lspci -v
>
>
>
>     05:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
>     Connection
>         Subsystem: Super Micro Computer Inc Device 040d
>         Flags: bus master, fast devsel, latency 0, IRQ 18
>         Memory at fb5e0000 (32-bit, non-prefetchable) [size=128K]
>         I/O ports at dc00 [size=32]
>         Memory at fb5dc000 (32-bit, non-prefetchable) [size=16K]
>         Capabilities: [c8] Power Management version 2
>         Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
>         Capabilities: [e0] Express Endpoint, MSI 00
>         Capabilities: [a0] MSI-X: Enable+ Count=5 Masked-
>         Capabilities: [100] Advanced Error Reporting
>         Capabilities: [140] Device Serial Number 00-25-90-ff-ff-39-70-0e
>         Kernel driver in use: e1000e
>         Kernel modules: e1000e
>
>
>     Thanks,
>     Benjamin
>
>
>
>     On 10/15/2011 04:41 PM, Reindl Harald wrote:
>     > Am 15.10.2011 13:09, schrieb Benjamin:
>     >> OS : FEDORA 15 64 BIT
>     >> LAN INTERFACE IS ONBOARD GIGABIT LAN CARD
>     > this is no information
>     >
>     > WHAT network-card is on the board?
>     > lspci is your friend!
>     >
>     >
>     >
>     >
>
>     --
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