Re: NDIS IM driver Packet drop (Broadcom NIC)

So what? some packets were dropped on the floor due to very high load on
the adapter, this is normal.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@xxxxxxxxxxxxxxxx
http://www.storagecraft.com

"Gaurav" <gauravgoyal121@xxxxxxxxx> wrote in message
news:1152722905.488796.17510@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi,

I wrote an IM filter driver that just count the number of packets hit
per NIC. I have one utility which sends variable size packets(850
mbps). When i send these packets to one NIC then it work fine.
when i send the same data to 2 NICs then i am not getting all of the
sent packets.

I have one broadcom utility(Broadcom Advanced Control Suite 2) which
shows the following status:-

NIC 1
-----------
Frames Rx OK - 9961533
Directed Frames Rx 9999999

NIC 1
-----------
Frames Rx OK - 9915476
Directed Frames Rx 9999999

And my driver stats shows me this :- NIC1 = 9961533 NIC2 = 9915476.
but i send 9999999 packets which directed frames rx shows.

and the discription for "Frames Rx ok" and "Dirested Frames ok" is as
follows.

Frames Rx OK -- A count of the frames that are successfully received.
This does not include frames received with frame-too-long, frame check
sequence (FCS), length, or alignment errors, or frames lost due to
internal MAC sublayer errors. This counter is incremented when the
receive status is reported as Receive OK.

Directed Frames Rx -- A count of directed data frames that are
successfully received.

I am using 4 proc machine with 2 onboard Broadcom NICs.

What could be the possible cause? Why no drops with one NIC.
Any solution?

Is there any tools which shows NDIS Statistics.

Thanks in Advance.
Gaurav


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