I found my problem that one of switches has VLAN option. So basic l3fwd cannot just look into the packets. Now I solved the problem. Thank you for your help.
Regards, Daeyoung 2015-06-29 11:44 GMT-04:00 Keunhong Lee <dlrmsghd at gmail.com>: > Check that whether you are polling all RX queues of your program. > You said that your configuration works well with Wireshark. > So I don't think that this is the problem. > > You can check your port statistics for the number of received packets. > If the statistics show 2 packets, but you received 1 packet, then your > program might have mistakes. > > Keunhong. > > > 2015-06-30 0:39 GMT+09:00 Daeyoung Kim <kdy1029 at 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 at 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 at 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 at 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 at 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 >>>>>> >>>>> >>>>> >>>> >>> >> >
