Re: [dpdk-dev] Receiving packets on only one port

[Daeyoung Kim <kdy1029@gmail.com>]

OK, I see. My program uses RSS. Is it related to my problem? If the testpmd
application does not work, the switch configuration might be wrong. Am I
right?

Thank you for your answer.

Regards,
Daeyoung

2015-06-29 11:28 GMT-04:00 Keunhong Lee <dlrmsghd@gmail.com>:

> Actually I have no idea why this happens.
> If your switch configuration is correct, your program should work just
> like Wireshark does.
> I wander whether your program uses RSS.
> In my opinion, program bug is the most probable reason.
>
> Keunhong.
>
>
> 2015-06-29 23:32 GMT+09:00 Daeyoung Kim <kdy1029@gmail.com>:
>
>> Hi Keunhong,
>>
>> Thank you for your help. Here is the network topology.
>>
>> DNS Client - Switch 1 - Switch 2 - Switch 3 - DNS Server
>>                              |                                  |
>>                          port 0                          port 1
>>
>> DPDK port 0 receives packets using from the Switch 1 port mirroring and
>> port 1 receives packets from the Switch 2 using port mirroring as well. As
>> I already said, when I send DNS packets, the wireshark simultaneously gets
>> all the packets on two ports. I'm sorry what I told you is incorrect. Using
>> my program with promiscuous mode, the port 0 receives only DNS queries from
>> the DNS client, but the port 1 receives only DNS replies from the DNS
>> server. I'd like to know why it happens.
>>
>> Thank you very much!
>>
>> Regards,
>> Daeyoung
>>
>> 2015-06-28 20:22 GMT-04:00 Keunhong Lee <dlrmsghd@gmail.com>:
>>
>>> I don't know your situation exactly, but here are possible problems.
>>>
>>> 1. Your switch learned MAC addresses of two ports.
>>> 2. Your program bug.
>>> 3. l3fwd itself contains some bug.
>>> 4. You did not set all ports in promiscuous mode.
>>>
>>> You'd better try 'pktgen' application to test your environment.
>>>
>>> Keunhong.
>>>
>>>
>>>
>>> 2015-06-27 0:45 GMT+09:00 Daeyoung Kim <kdy1029@gmail.com>:
>>>
>>>> Hello,
>>>>
>>>> I'm writing a packet capture program from the l3fwd. When I send DNS
>>>> packets, the wireshark simultaneously gets all the packets on two ports.
>>>> However, using my program with promiscuous mode, one port receives all
>>>> the
>>>> packets, but the other port gets nothing. Do you know why it happens?
>>>> Could
>>>> it be network topology problem using DPDK, a DPDK design like forwarding
>>>> mechanism, or just my program bugs? Any comments would be appreciated.
>>>>
>>>> Thanks,
>>>> Daeyoung
>>>>
>>>
>>>
>>
>