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fedora-users: Re: getting packet dropperd on interface

Re: getting packet dropperd on interface

From: agraham <agraham_at_nospam>
Date: Sun Oct 16 2011 - 08:39:44 GMT
To: Community support for Fedora users <users@lists.fedoraproject.org>

Benjamin,

Can you also include the network statistics, it may helpful to know
exactly what type of errors these are:

ethtool -S em1

Are you in a position to change the cable?

I see this is a Supermicro, does the machine have a IPMI card using the
same IP address by any chance ?

Albert.

On 10/16/2011 06:14 AM, Benjamin wrote:
> 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@gmail.com
>> <mailto:benjo11111@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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