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Published 20 hours ago • verified publisher icon cisco-system-traffic-generator

Why does a dest MAC is invalid ？

Open lizzmosquito opened this issue 1 year ago • 2 comments

trex>start -f stl/udp_1pkt_mpls_bak.py

start - Port 1 dest MAC is invalid and there are streams without explicit dest MAC.

trex>

root@SixWind:/home/trex-core-master/scripts/stl# more udp_1pkt_mpls_bak.py from trex_stl_lib.api import * from scapy.contrib.mpls import * # import from contrib folder of scapy import argparse

class STLS1(object):

def __init__ (self):
    pass;

def create_stream (self):
    # 2 MPLS label the internal with  s=1 (last one)
    pkt =  Ether()/MPLS(label=17,cos=1,s=0,ttl=255)/MPLS(label=12,cos=1,s=1,ttl=12)/IP(src="100.1.1.2",dst="100.1.1.1")/UDP(dport=12,sport=1025)/('x'*20)

    # burst of 17 packets
    return STLStream(packet = STLPktBuilder(pkt = pkt ,vm = []),
                     mode = STLTXSingleBurst( pps = 1, total_pkts = 17) )


def get_streams (self, tunables, **kwargs):
    parser = argparse.ArgumentParser(description='Argparser for {}'.format(os.path.basename(__file__)), 
                                     formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    args = parser.parse_args(tunables)
    # create 1 stream 
    return [ self.create_stream() ]

def register(): return STLS1()

root@SixWind:/home/trex-core-master/scripts/stl#

root@SixWind:/etc# more trex_cfg.yaml

  • port_limit : 2 version : 2 #List of interfaces. Change to suit your setup. Use ./dpdk_setup_ports.py -s to see available options interfaces : ["0000:00:04.0","0000:00:05.0"] port_info : # Port IPs. Change to suit your needs. In case of loopback, you can leave as is. - ip : 100.1.1.2 default_gw : 100.1.1.1 - ip : 200.1.1.2 default_gw : 200.1.1.1

root@SixWind:/etc#

root@SixWind:/home/trex-core-master/scripts# sudo ./dpdk_setup_ports.py -s

Network devices using DPDK-compatible driver

0000:00:04.0 'Virtio network device' drv=uio_pci_generic unused=igb_uio,vfio-pci 0000:00:05.0 'Virtio network device' drv=uio_pci_generic unused=igb_uio,vfio-pci

Network devices using kernel driver

0000:00:03.0 'Virtio network device' if=mgmt0 drv=virtio-pci unused=igb_uio,vfio-pci,uio_pci_generic Active 0000:00:06.0 'Virtio network device' if=eth3 drv=virtio-pci unused=igb_uio,vfio-pci,uio_pci_generic

Other network devices

root@SixWind:/home/trex-core-master/scripts#

lizzmosquito avatar Oct 10 '23 07:10 lizzmosquito

Try to check the post status, probably there is no arp resolve for the default_gw : 100.1.1.1 you can try to do this manually using arp resolve command. Another way is to set the destination MAC explicitly in the profile

see here https://trex-tgn.cisco.com/trex/doc/trex_stateless.html#_tutorial_source_and_destination_mac_addresses

thanks Hanoh

hhaim avatar Oct 12 '23 11:10 hhaim

@hhaim I want to send traffic to the port at 100% rate, but now I see that the port rate is only 0.13%, what should I do?

trex>start -m 100% -f stl/udp_1pkt_mpls_bak.py

trex>stats Global Statistics

connection : localhost, Port 4501 total_tx_L2 : 207.33 Mbps ▼▼
version : STL @ v3.04 total_tx_L1 : 263.36 Mbps ▼▼
cpu_util. : 100.0% @ 1 cores (1 per dual port) total_rx : 0 bps
rx_cpu_util. : 0.0% / 0 pps total_pps : 350.21 Kpps ▼▼
async_util. : 0% / 5.82 bps drop_rate : 207.33 Mbps
total_cps. : 0 cps queue_full : 1,155,005,236 pkts

Port Statistics

port | 0
-----------+------------------ owner | root link | UP state | TRANSMITTING speed | 200 Gb/s CPU util. | 100.0% -- |
Tx bps L2 | ▼▼ 207.33 Mbps Tx bps L1 | ▼▼ 263.36 Mbps Tx pps | ▼▼ 350.21 Kpps Line Util. | 0.13 % --- |
Rx bps | 0 bps Rx pps | 0 pps ---- |
opackets | 530308168 ipackets | 365 obytes | 39242804432 ibytes | 92476 tx-pkts | 530.31 Mpkts rx-pkts | 365 pkts tx-bytes | 39.24 GB rx-bytes | 92.48 KB ----- |
oerrors | 0 ierrors | 0

trex>

root@SixWind:/home/trex-core-master/scripts/stl# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 6 model name : QEMU Virtual CPU version 2.5+ stepping : 3 microcode : 0x1 cpu MHz : 2194.842 cache size : 16384 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl xtopology cpuid pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti bugs : cpu_meltdown spectre_v1 spectre_v2 bogomips : 4389.68 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:

processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 6 model name : QEMU Virtual CPU version 2.5+ stepping : 3 microcode : 0x1 cpu MHz : 2194.842 cache size : 16384 KB physical id : 1 siblings : 1 core id : 0 cpu cores : 1 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl xtopology cpuid pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti bugs : cpu_meltdown spectre_v1 spectre_v2 bogomips : 4389.68 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:

processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 6 model name : QEMU Virtual CPU version 2.5+ stepping : 3 microcode : 0x1 cpu MHz : 2194.842 cache size : 16384 KB physical id : 2 siblings : 1 core id : 0 cpu cores : 1 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl xtopology cpuid pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti bugs : cpu_meltdown spectre_v1 spectre_v2 bogomips : 4389.68 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:

processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 6 model name : QEMU Virtual CPU version 2.5+ stepping : 3 microcode : 0x1 cpu MHz : 2194.842 cache size : 16384 KB physical id : 3 siblings : 1 core id : 0 cpu cores : 1 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm rep_good nopl xtopology cpuid pni cx16 x2apic hypervisor lahf_lm cpuid_fault pti bugs : cpu_meltdown spectre_v1 spectre_v2 bogomips : 4389.68 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:

root@SixWind:/home/trex-core-master/scripts/stl#

lizzmosquito avatar Oct 13 '23 07:10 lizzmosquito