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emmericp / MoonGen

MoonGen is a fully scriptable high-speed packet generator built on DPDK and LuaJIT. It can saturate a 10 Gbit/s connection with 64 byte packets on a single CPU core while executing user-provided Lua scripts for each packet. Multi-core support allows for even higher rates. It also features precise and accurate timestamping and rate control.
MIT License
1.04k stars 235 forks source link

Link Down , Unable to use MoonGen. #271

Open prashantharaonr opened 4 years ago

prashantharaonr commented 4 years ago

Hello,

I am trying to use MOONGen, I got the following error. I did updates of the driver (one NIC Intel X550T2 and second Intel X550T)and the OS is Debian buster with kernel 4.19.0-8-amd64. Kindly help how to proceed.

user@user:~/MoonGen$ sudo ./build/MoonGen examples/l3-load-latency.lua 0 1 [INFO] Initializing DPDK. This will take a few seconds... EAL: Detected 8 lcore(s) EAL: Probing VFIO support... EAL: PCI device 0000:01:00.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 8086:15d1 net_ixgbe EAL: PCI device 0000:02:00.0 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 8086:1563 net_ixgbe EAL: PCI device 0000:02:00.1 on NUMA socket -1 EAL: Invalid NUMA socket, default to 0 EAL: probe driver: 8086:1563 net_ixgbe [INFO] Found 3 usable devices: Device 0: 00:00:00:00:00:00 (Intel Corporation Ethernet Controller 10G X550T) Device 1: 11:11:11:11:11:11 (Intel Corporation Ethernet Controller 10G X550T) Device 2: 22:22:22:22:22:22 (Intel Corporation Ethernet Controller 10G X550T) PMD: ixgbe_dev_link_status_print(): Port 0: Link Down PMD: ixgbe_dev_link_status_print(): Port 1: Link Down [INFO] Waiting for devices to come up... [ERROR] Device 0 (00:00:00:00:00:00) is DOWN: 0 MBit/s [ERROR] Device 1 (11:11:11:11:11:11) is DOWN: 0 MBit/s [INFO] 0 devices are up. [WARN] Failed to set rate limiter on queue [TxQueue: id=0, qid=0]: Invalid argument [INFO] Performing ARP lookup on 10.1.0.10 [INFO] Performing ARP lookup on 10.1.0.10 [INFO] ARP lookup failed, using default destination mac address [INFO] ARP lookup failed, using default destination mac address [WARN] Packet size 60 is smaller than minimum timestamp size 84. Timestamped packets will be larger than load packets.

Regards Rao

harshgondaliya commented 4 years ago

I think your links are not up. The following is what I am able to think of:

  1. Please make sure that the entire link is UP. Meaning:
  1. If you are ubuntu user try commands like:ip link set eth0 up On my ethernet card, there are LEDs that show whether the link is UP or DOWN. If such LEDs are available, check for its status.
emmericp commented 4 years ago

Does it work with Linux? Does it work with other DPDK examples?

harshgondaliya commented 4 years ago

Yes, I am using a Linux machine with Intel Ethernet Server Adapter X520-DA2 NIC. Everything works as expected for me. But yes, while running l3-load-latency.lua, if ports on the other side of the link are down, then I too get the same error as prashantharaonr.

jabir366 commented 4 years ago

Have you tried connecting a cable from port zero to port 1 ? this should work anyway,