[dpdk-users] How to test l3fwd?

[Vincent Li]

could you please share how you figured out your problem?  it appears I
am having same kind of  network link setup and  no packet being
forwarded, there must be something I am missing, wondering if your
solution would apply to my setup.

Thanks!

Vincent

On Fri, Jul 22, 2016 at 6:18 PM, Charlie Li <charlie.li at gmail.com> wrote:
> Never mind - I figured it out.
>
> On Wed, Jul 20, 2016 at 3:06 PM, Charlie Li <charlie.li at gmail.com> wrote:
>
>> I am also attaching the full logs from l3fwd and l2fwd.
>>
>> On Wed, Jul 20, 2016 at 3:02 PM, Charlie Li <charlie.li at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> My setup is dpdk-2.2.0 on Fedora 23 Server with kernel 4.5.7.
>>>
>>> I have been testing L2 throughput with l2fwd and an Ixia traffic
>>> generator. It works as expected.
>>>
>>> Command: ./l2fwd -c 0xf -n 4 -- -p 0x3
>>> Ixia traffic: MAC (Ethernet frames)
>>>
>>>
>>> Now I am moving to test L3 throughput with l3fwd, but cannot start
>>> traffic from Ixia
>>>
>>> Command: ./l3fwd -c 0xf -n 4 -- -p 0x3 --config="(0,0,2)(1,0,3)"
>>> Ixia traffic: IPv4 (IP packets)
>>>
>>> My question is:
>>>
>>> What are the IP addresses of the two ports?
>>>
>>> "LPM: Adding route 0x01010100 / 24 (0)
>>> LPM: Adding route 0x02010100 / 24 (1)"
>>>
>>> Does it mean the IP addresses are 1.1.1.0 (netmask 255.255.255.0) for
>>> port0 and 2.1.1.0 (netmask 255.255.255.0) for port1?
>>>
>>> I set up the following two flows, but Ixia complains "unreachable"
>>>
>>> Flow1: Ixia PortA (1.1.1.100) -> DPDK Port0 (1.1.1.0) .........(l3fwd)
>>> ........ DPDK Port1 (2.1.1.0) -> Ixia PortB (2.1.1.100)
>>>           Src IP: 1.1.1.100; Dst IP: 2.1.1.100; Gateway: 1.1.1.0
>>>
>>> Flow2: Ixia PortB (2.1.1.100) -> DPDK Port1 (2.1.1.0) .........(l3fwd)
>>> ........ DPDK Port0 (1.1.1.0) -> Ixia PortA (1.1.1.100)
>>>           Src IP: 2.1.1.100; Dst IP: 1.1.1.100; Gateway: 2.1.1.0
>>>
>>> Thanks,
>>> Charlie
>>>
>>>
>>