just started with trex

Marc Ientilucci

unread,

May 15, 2019, 3:14:30 PM5/15/19

to TRex Traffic Generator

Hey team,

I have some general questions and hoping someone might be able to answer.

QUESTION: When I am running http_simple.yaml with latency, i notice that port 0 rx_ok results stop while port 1 continues to increment. port 1 will eventually stop as well. both port's tx_ok continue to increment until the test ends. can anyone explain this behavior, is it expected?

---

I have TREX running on the following hardware using ubuntu 16.04:

Motherboard Custom
Processor Intel Atom C2758
OS Drive 32GB Industrial Compact Flash
Memory 8GB DDR3
NICs 6

Network devices using DPDK-compatible driver
============================================
0000:00:14.0 'Ethernet Connection I354' drv=igb_uio unused=igb,vfio-pci,uio_pci_generic
0000:00:14.1 'Ethernet Connection I354' drv=igb_uio unused=igb,vfio-pci,uio_pci_generic

Network devices using kernel driver
===================================
0000:00:14.2 'Ethernet Connection I354' if=enp0s20f2 drv=igb unused=igb_uio,vfio-pci,uio_pci_generic
0000:00:14.3 'Ethernet Connection I354' if=enp0s20f3 drv=igb unused=igb_uio,vfio-pci,uio_pci_generic
0000:03:00.0 'I210 Gigabit Network Connection' if=enp3s0 drv=igb unused=igb_uio,vfio-pci,uio_pci_generic *Active*
0000:04:00.0 'I210 Gigabit Network Connection' if=enp4s0 drv=igb unused=igb_uio,vfio-pci,uio_pci_generic

Other network devices
=====================
<none>

---

i am running:

sudo ./t-rex-64 -f cap2/http_simple.yaml -c 4 -m 1000 -d 100 -l 1000

---

root@dna-ubuntu:/opt/trex/v2.56# cat cap2/http_simple.yaml
- duration : 0.1
generator :
distribution : "seq"
clients_start : "192.168.0.1"
clients_end : "192.168.0.255"
servers_start : "10.10.0.1"
servers_end : "10.10.0.240"
clients_per_gb : 201
min_clients : 101
dual_port_mask : "1.0.0.0"
tcp_aging : 0
udp_aging : 0
cap_ipg : true
cap_info :
- name: avl/delay_10_http_browsing_0.pcap
cps : 2.776
ipg : 10000
rtt : 10000
w : 1

root@dna-ubuntu:/opt/trex/v2.56#

---

FULL TEST RESULTS:

-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------
opackets | 3977692 | 6470261
obytes | 322120664 | 9266465204
ipackets | 1529927 | 1678111
ibytes | 2186351822 | 135878125
ierrors | 5 | 5
oerrors | 0 | 0
Tx Bw | 25.81 Mbps | 742.63 Mbps

-Global stats enabled
Cpu Utilization : 1.4 % 28.4 Gb/core
Platform_factor : 1.0
Total-Tx : 768.44 Mbps
Total-Rx : 30.35 Kbps
Total-PPS : 104.65 Kpps
Total-CPS : 2.77 Kcps

Expected-PPS : 102.71 Kpps
Expected-CPS : 2.78 Kcps
Expected-BPS : 767.80 Mbps

Active-flows : 366 Clients : 252 Socket-util : 0.0023 %
Open-flows : 277217 Servers : 240 Socket : 366 Socket/Clients : 1.5
drop-rate : 768.41 Mbps
current time : 112.7 sec
test duration : 0.0 sec

-Latency stats enabled
Cpu Utilization : 0.1 %
if| tx_ok , rx_ok , rx check ,error, latency (usec) , Jitter max window
| , , , , average , max , (usec)
----------------------------------------------------------------------------------------------------------------
0 | 99978, 23742, 0, 1, 425 , 14226, 572 | 3185 832 4397 14142 4755 3799 4719 1450 11725 4628 3818 3436 10331
1 | 99978, 42225, 0, 1, 151 , 13292, 91 | 2196 3264 1021 3500 2218 3794 689 557 657 8930 3781 3318 2118
*** TRex is shutting down - cause: 'test has ended'
latency daemon has stopped
All cores stopped !!
==================
interface sum
==================
---------------
port : 0
------------
opackets : 3986687
obytes : 322805342
ipackets : 1529928
ibytes : 2186351886
ierrors : 5
Tx : 16.21 Mbps
port : 1
------------
opackets : 6485087
obytes : 9287897342
ipackets : 1678155
ibytes : 135880941
ierrors : 5
Tx : 468.85 Mbps
Cpu Utilization : 1.4 % 17.9 Gb/core
Platform_factor : 1.0
Total-Tx : 485.06 Mbps
Total-Rx : 19.35 Kbps
Total-PPS : 66.01 Kpps
Total-CPS : 1.71 Kcps

Expected-PPS : 102.71 Kpps
Expected-CPS : 2.78 Kcps
Expected-BPS : 767.80 Mbps

Active-flows : 0 Clients : 252 Socket-util : 0.0000 %
Open-flows : 277600 Servers : 240 Socket : 0 Socket/Clients : 0.0
drop-rate : 485.04 Mbps
==================

==================
interface sum
==================
------------------------
per core stats core id : 1
------------------------
------------------------
per core per if stats id : 1
------------------------
port 0, queue id :0 - client
----------------------------
port 1, queue id :0 - server
----------------------------
------------------------
per core stats core id : 2
------------------------
------------------------
per core per if stats id : 2
------------------------
port 0, queue id :1 - client
----------------------------
port 1, queue id :1 - server
----------------------------
------------------------
per core stats core id : 3
------------------------
------------------------
per core per if stats id : 3
------------------------
port 0, queue id :2 - client
----------------------------
port 1, queue id :2 - server
----------------------------
------------------------
per core stats core id : 4
------------------------
------------------------
per core per if stats id : 4
------------------------
port 0, queue id :3 - client
----------------------------
port 1, queue id :3 - server
----------------------------
==================
generators
==================

normal
-------------
min_delta : 10 usec
cnt : 0
high_cnt : 0
max_d_time : 0 usec
sliding_average : 0 usec
precent : -nan %
histogram
-----------
m_total_bytes : 2.23 Gbytes
m_total_pkt : 2.57 Mpkt
m_total_open_flows : 69.40 Kflows
m_total_pkt : 2567800
m_total_open_flows : 69400
m_total_close_flows : 69400
m_total_bytes : 2399366200

normal
-------------
min_delta : 10 usec
cnt : 0
high_cnt : 0
max_d_time : 0 usec
sliding_average : 0 usec
precent : -nan %
histogram
-----------
m_total_bytes : 2.23 Gbytes
m_total_pkt : 2.57 Mpkt
m_total_open_flows : 69.40 Kflows
m_total_pkt : 2567800
m_total_open_flows : 69400
m_total_close_flows : 69400
m_total_bytes : 2399366200
==================
latency
==================
Cpu Utilization : 0.1 %
if| tx_ok , rx_ok , rx check ,error, latency (usec) , Jitter max window
| , , , , average , max , (usec)
----------------------------------------------------------------------------------------------------------------
0 | 100287, 23742, 0, 1, 425 , 14226, 572 | 3185 832 4397 14142 4755 3799 4719 1450 11725 4628 3818 3436 10331
1 | 100287, 42225, 0, 1, 151 , 13292, 91 | 2196 3264 1021 3500 2218 3794 689 557 657 8930 3781 3318 2118
cpu : 0.1 %
port 0
-----------------
counter
-----------
m_tx_pkt_ok : 100287
m_pkt_ok : 23742
m_seq_error : 1
-----------
min_delta : 10 usec
cnt : 288
high_cnt : 288
max_d_time : 14226 usec
sliding_average : 425 usec
precent : 100.0 %
histogram
-----------
h[30] : 1
h[40] : 9
h[50] : 13
h[60] : 19
h[70] : 70
h[80] : 96
h[90] : 109
h[100] : 6995
h[200] : 8923
h[300] : 4729
h[400] : 1440
h[500] : 408
h[600] : 183
h[700] : 88
h[800] : 46
h[900] : 24
h[1000] : 208
h[2000] : 112
h[3000] : 93
h[4000] : 56
h[5000] : 23
h[6000] : 23
h[7000] : 17
h[8000] : 14
h[9000] : 13
h[10000] : 30
jitter : 572
port 1
-----------------
counter
-----------
m_tx_pkt_ok : 100287
m_pkt_ok : 42225
m_unsup_prot : 1
-----------
min_delta : 10 usec
cnt : 420
high_cnt : 420
max_d_time : 13292 usec
sliding_average : 151 usec
precent : 100.0 %
histogram
-----------
h[20] : 15
h[30] : 1569
h[40] : 1786
h[50] : 2199
h[60] : 2134
h[70] : 2229
h[80] : 2194
h[90] : 2228
h[100] : 15657
h[200] : 8038
h[300] : 2501
h[400] : 739
h[500] : 287
h[600] : 137
h[700] : 66
h[800] : 51
h[900] : 30
h[1000] : 138
h[2000] : 80
h[3000] : 45
h[4000] : 19
h[5000] : 13
h[6000] : 13
h[7000] : 12
h[8000] : 11
h[9000] : 9
h[10000] : 25
jitter : 91
rx_checker is disabled
---------------
port : 0
------------
opackets : 3986687
obytes : 322805342
ipackets : 1529928
ibytes : 2186351886
ierrors : 5
Tx : 16.21 Mbps
port : 1
------------
opackets : 6485087
obytes : 9287897342
ipackets : 1678157
ibytes : 135881069
ierrors : 5
Tx : 468.85 Mbps
Cpu Utilization : 1.4 % 17.9 Gb/core
Platform_factor : 1.0
Total-Tx : 485.06 Mbps
Total-Rx : 19.35 Kbps
Total-PPS : 66.01 Kpps
Total-CPS : 1.71 Kcps

Expected-PPS : 102.71 Kpps
Expected-CPS : 2.78 Kcps
Expected-BPS : 767.80 Mbps

Active-flows : 0 Clients : 252 Socket-util : 0.0000 %
Open-flows : 277600 Servers : 240 Socket : 0 Socket/Clients : 0.0
drop-rate : 485.04 Mbps
summary stats
--------------
Total-pkt-drop : 7263689 pkts
Total-tx-bytes : 9610702684 bytes
Total-tx-sw-bytes : 13237884 bytes
Total-rx-bytes : 2322232955 byte

Total-tx-pkt : 10471774 pkts
Total-rx-pkt : 3208085 pkts
Total-sw-tx-pkt : 200574 pkts
Total-sw-err : 0 pkts
Total ARP sent : 6 pkts
Total ARP received : 611 pkts
maximum-latency : 14226 usec
average-latency : 425 usec
latency-any-error : ERROR
root@dna-ubuntu:/opt/trex/v2.56#

Message has been deleted

Marc Ientilucci

unread,

May 20, 2019, 5:23:45 PM5/20/19

to TRex Traffic Generator

im still banging my head against a wall. to add more, i am noticing that i always seem to be getting input errors (ierrors) on at least one (sometimes both) ports 0 and 1.

when the test is done, i also see latency-any-error : ERROR.

i tried with -k 10. when i do this, the rx_ok column on latency stats does not increment at all.

it seems very alarming that Total-Rx seems to drop off so much.

i'll continue to post with more findings. if anyone can assist, it would be much appreciated.

cheers!

hanoh haim

unread,

May 21, 2019, 3:03:29 AM5/21/19

to Marc Ientilucci, TRex Traffic Generator

Hi Marc,

I think it is related to link going up/down at startup.

you can add `` -w 10`` it might help I350 are known to have this issues.

You can use the interactive modes (ASTF/STL) to verify that (you load the server once)

thanks

Hanoh

Marc Ientilucci

unread,

May 21, 2019, 12:04:01 PM5/21/19

to TRex Traffic Generator

Thanks for the reply Hanoh, ``-w 10`` did not help on my initial attempts. I still see a few ierrors on both ports. After about 49 seconds Total-Rx drops significantly (from around 1.2 Mbps to 2.4 Kbps). with latency stats, rx_ok is still stopping around the same time.

When i switch over to ASTF Interactive mode, it seems to be yielding desired results. Is there any downside of using this over the "normal" mode? So far, I've noticed that interactive mode doesnt print stats at the end of the test. is there a way to do this?

when trying with ``--astf``:

+++++++
Command
+++++++

./t-rex-64 -f astf/http_simple.py --astf -m 100 -d 60 -l 1000 -w 10

- ierrors clear up on both ports
- traffic essentially stops on port 1.
- when running with ``-l 1000``, latency errors increment into the 1000's.
- Total-Tx and Total-Rx drop significantly from 1.2 Mbps to 431.03 bps and 31.06 Kbps.

++++++++++++++
http_simple.py
++++++++++++++

from trex.astf.api import *

class Prof1():
def __init__(self):
pass

def get_profile(self, **kwargs):
# ip generator
ip_gen_c = ASTFIPGenDist(ip_range=["192.168.0.0", "192.168.0.255"], distribution="seq")
ip_gen_s = ASTFIPGenDist(ip_range=["10.10.0.0", "10.10.0.255"], distribution="seq")
ip_gen = ASTFIPGen(glob=ASTFIPGenGlobal(ip_offset="1.0.0.0"),
dist_client=ip_gen_c,
dist_server=ip_gen_s)

return ASTFProfile(default_ip_gen=ip_gen,
cap_list=[ASTFCapInfo(file="../avl/delay_10_http_browsing_0.pcap",
cps=2.776)])

def register():
return Prof1()

+++++++
Results
+++++++

-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------

test duration : 0.0 sec

-Latency stats enabled
Cpu Utilization : 0.1 %
if| tx_ok , rx_ok , rx check ,error, latency (usec) , Jitter max window
| , , , , average , max , (usec)
----------------------------------------------------------------------------------------------------------------

0 | 67584, 8005, 0, 2087, 107 , 1217, 34 | 1079 666 264 974 322 236 414 1217 435 571 791 599 549
1 | 8006, 8009, 0, 2111, 99 , 1196, 40 | 403 640 259 1027 304 237 389 1196 527 750 545 618 532

*** TRex is shutting down - cause: 'test has ended'
latency daemon has stopped
All cores stopped !!
==================
interface sum
==================
---------------
port : 0
------------

opackets : 136777
obytes : 10326877
ipackets : 65007
ibytes : 74371218
Tx : 385.41 Kbps
port : 1
------------
opackets : 62656
obytes : 74373766
ipackets : 20993
ibytes : 1987903
Tx : 0.00 bps
Cpu Utilization : 1.2 % 0.1 Gb/core
Platform_factor : 1.0
Total-Tx : 385.41 Kbps
Total-Rx : 44.28 Kbps
Total-PPS : 720.35 pps
Total-CPS : 1.20 cps

Expected-PPS : 0.00 pps
Expected-CPS : 0.00 cps
Expected-L7-BPS : 0.00 bps

Active-flows : 0 Clients : 256 Socket-util : 0.0000 %
Open-flows : 16629 Servers : 256 Socket : 0 Socket/Clients : 0.0
drop-rate : 341.13 Kbps

==================

==================
interface sum
==================
------------------------
per core stats core id : 1
------------------------
------------------------
per core per if stats id : 1
------------------------
port 0, queue id :0 - client
----------------------------
port 1, queue id :0 - server
----------------------------

==================
generators
==================

normal
-------------
min_delta : 10 usec
cnt : 0
high_cnt : 0
max_d_time : 0 usec
sliding_average : 0 usec
precent : -nan %
histogram
-----------

m_total_open_flows : 16.63 Kflows
m_total_open_flows : 16629
m_total_close_flows : 16629

==================
latency
==================
Cpu Utilization : 0.1 %
if| tx_ok , rx_ok , rx check ,error, latency (usec) , Jitter max window
| , , , , average , max , (usec)
----------------------------------------------------------------------------------------------------------------

0 | 68070, 8005, 0, 2196, 107 , 1217, 34 | 1079 666 264 974 322 236 414 1217 435 571 791 599 549
1 | 8006, 8009, 0, 2111, 99 , 1196, 40 | 403 640 259 1027 304 237 389 1196 527 750 545 618 532

cpu : 0.1 %
port 0
-----------------
counter
-----------

m_tx_pkt_ok : 68070
m_pkt_ok : 8005
m_unsup_prot : 2196
-----------
min_delta : 10 usec
cnt : 342
high_cnt : 342
max_d_time : 1217 usec
sliding_average : 107 usec

precent : 100.0 %
histogram
-----------

h[20] : 2
h[30] : 82
h[40] : 199
h[50] : 326
h[60] : 510
h[70] : 747
h[80] : 956
h[90] : 1135
h[100] : 3895
h[200] : 80
h[300] : 45
h[400] : 14
h[500] : 8
h[600] : 2
h[700] : 1
h[900] : 1
h[1000] : 2
jitter : 34

port 1
-----------------
counter
-----------

m_tx_pkt_ok : 8006
m_pkt_ok : 8009
m_unsup_prot : 2111
-----------
min_delta : 10 usec
cnt : 342
high_cnt : 342
max_d_time : 1196 usec
sliding_average : 99 usec

precent : 100.0 %
histogram
-----------
h[20] : 1

h[30] : 87
h[40] : 202
h[50] : 354
h[60] : 802
h[70] : 1321
h[80] : 1313
h[90] : 1646
h[100] : 2079
h[200] : 129
h[300] : 41
h[400] : 15
h[500] : 13
h[600] : 2
h[700] : 1
h[1000] : 3
jitter : 40

rx_checker is disabled
---------------
port : 0
------------

opackets : 136777
obytes : 10326877
ipackets : 65007
ibytes : 74371218
Tx : 385.41 Kbps
port : 1
------------
opackets : 62656
obytes : 74373766
ipackets : 20993
ibytes : 1987903
Tx : 0.00 bps
Cpu Utilization : 1.2 % 0.1 Gb/core
Platform_factor : 1.0
Total-Tx : 385.41 Kbps
Total-Rx : 44.28 Kbps
Total-PPS : 720.35 pps
Total-CPS : 1.20 cps

Expected-PPS : 0.00 pps
Expected-CPS : 0.00 cps
Expected-L7-BPS : 0.00 bps

Active-flows : 0 Clients : 256 Socket-util : 0.0000 %
Open-flows : 16629 Servers : 256 Socket : 0 Socket/Clients : 0.0
drop-rate : 341.13 Kbps
summary stats
--------------
Total-pkt-drop : 113433 pkts
Total-tx-bytes : 84700643 bytes
Total-tx-sw-bytes : 5021016 bytes
Total-rx-bytes : 76359121 byte

Total-tx-pkt : 199433 pkts
Total-rx-pkt : 86000 pkts
Total-sw-tx-pkt : 76076 pkts
Total-sw-err : 0 pkts
Total ARP sent : 4 pkts
Total ARP received : 2 pkts
maximum-latency : 1217 usec
average-latency : 107 usec
latency-any-error : ERROR
| client | server |
-----------------------------------------------------------------------------------------
m_active_flows | 0 | 0 | active open flows
m_est_flows | 0 | 0 | active established flows
m_tx_bw_l7_r | 0.00 bps | 0.00 bps | tx L7 bw acked
m_tx_bw_l7_total_r | 0.00 bps | 0.00 bps | tx L7 bw total
m_rx_bw_l7_r | 0.00 bps | 0.00 bps | rx L7 bw acked
m_tx_pps_r | 52.75 pps | 0.00 pps | tx pps
m_rx_pps_r | 0.00 pps | 0.00 pps | rx pps
m_avg_size | 0.00 B | 20.96 B | average pkt size
m_tx_ratio | 100.09 % | 12.70 % | Tx acked/sent ratio
- | --- | --- |
TCP | --- | --- |
- | --- | --- |
tcps_connattempt | 16629 | 0 | connections initiated
tcps_accepts | 0 | 2192 | connections accepted
tcps_connects | 2191 | 2191 | connections established
tcps_closed | 16629 | 2192 | conn. closed (includes drops)
tcps_segstimed | 20983 | 8710 | segs where we tried to get rtt
tcps_rttupdated | 6545 | 8681 | times we succeeded
tcps_delack | 2191 | 0 | delayed acks sent
tcps_sndtotal | 68679 | 54622 | total packets sent
tcps_sndpack | 2191 | 50069 | data packets sent
tcps_sndbyte | 4140621 | 70317954 | data bytes sent by application
tcps_sndbyte_ok | 545559 | 69881472 | data bytes sent by tcp
tcps_sndctrl | 59971 | 32 | control (SYN|FIN|RST) packets sent
tcps_sndacks | 6517 | 4355 | ack-only packets sent
tcps_rcvpack | 52210 | 4354 | packets received in sequence
tcps_rcvbyte | 69850826 | 545559 | bytes received in sequence
tcps_rcvackpack | 4354 | 8681 | rcvd ack packets
tcps_rcvackbyte | 545559 | 69435250 | tx bytes acked by rcvd acks
tcps_rcvackbyte_of | 2163 | 4354 | tx bytes acked by rcvd acks - overflow acked
tcps_preddat | 47856 | 0 | times hdr predict ok for data pkts
tcps_drops | 28 | 29 | connections dropped
tcps_conndrops | 14438 | 0 | *embryonic connections dropped
tcps_rexmttimeo | 0 | 83 | *retransmit timeouts
tcps_rexmttimeo_syn | 43314 | 3 | *retransmit SYN timeouts
tcps_keeptimeo | 14494 | 57 | *keepalive timeouts
tcps_keepprobe | 28 | 28 | *keepalive probes sent
tcps_keepdrops | 14466 | 29 | *connections dropped in keepalive
tcps_sndrexmitpack | 0 | 166 | *data packets retransmitted
tcps_sndrexmitbyte | 0 | 121180 | *data bytes retransmitted
- | --- | --- |
UDP | --- | --- |
- | --- | --- |
- | --- | --- |
Flow Table | --- | --- |
- | --- | --- |
redirect_rx_ok | 2196 | 2111 | redirect to rx OK
root@TRex:/opt/trex/v2.56#

+++++++++++++++++++++
ASTF Interactive Mode
+++++++++++++++++++++

- so far i am seeing much better results.
- no ierrors
- consistent Total-Tx and Total-Rx for the duration of the test.

server: ``./t-rex-64 -i --astf -w 10``
console: ``start -f astf/http_simple.py -m 100 -d 60 -l 1000``

+++++++
Results
+++++++

-Per port stats table
ports | 0 | 1
-----------------------------------------------------------------------------------------

opackets | 179010 | 587909
obytes | 17490341 | 698215284
ipackets | 592498 | 183598
ibytes | 698508966 | 17783961
ierrors | 0 | 0
oerrors | 0 | 0
Tx Bw | 1.87 Mbps | 75.66 Mbps

-Global stats enabled
Cpu Utilization : 2.9 % 5.3 Gb/core
Platform_factor : 1.0
Total-Tx : 77.53 Mbps
Total-Rx : 77.55 Mbps
Total-PPS : 10.31 Kpps
Total-CPS : 257.28 Kcps

Expected-PPS : 0.00 pps
Expected-CPS : 0.00 cps
Expected-L7-BPS : 0.00 bps

Active-flows : 166 Clients : 256 Socket-util : 0.0010 %
Open-flows : 3863 Servers : 256 Socket : 166 Socket/Clients : 0.6
drop-rate : 0.00 bps
current time : 168.2 sec
test duration : 0.0 sec

| client | server |
-----------------------------------------------------------------------------------------
m_active_flows | 166 | 166 | active open flows
m_est_flows | 166 | 166 | active established flows
m_tx_bw_l7_r | 553.87 Kbps | 71.29 Mbps | tx L7 bw acked
m_tx_bw_l7_total_r | 553.05 Kbps | 71.32 Mbps | tx L7 bw total
m_rx_bw_l7_r | 71.39 Mbps | 553.36 Kbps | rx L7 bw acked
m_tx_pps_r | 1.39 Kpps | 6.94 Kpps | tx pps
m_rx_pps_r | 7.23 Kpps | 1.67 Kpps | rx pps
m_avg_size | 1.04 KB | 1.04 KB | average pkt size
m_tx_ratio | 100.15 % | 99.96 % | Tx acked/sent ratio
- | --- | --- |
TCP | --- | --- |
- | --- | --- |
tcps_connattempt | 9125 | 0 | connections initiated
tcps_accepts | 0 | 9125 | connections accepted
tcps_connects | 9125 | 9125 | connections established
tcps_closed | 8959 | 8959 | conn. closed (includes drops)
tcps_segstimed | 27347 | 36445 | segs where we tried to get rtt
tcps_rttupdated | 27346 | 36416 | times we succeeded
tcps_delack | 9098 | 0 | delayed acks sent
tcps_sndtotal | 45542 | 227773 | total packets sent
tcps_sndpack | 9125 | 209551 | data packets sent
tcps_sndbyte | 2272125 | 292857750 | data bytes sent by application
tcps_sndbyte_ok | 2272125 | 292421268 | data bytes sent by tcp
tcps_sndctrl | 9125 | 0 | control (SYN|FIN|RST) packets sent
tcps_sndacks | 27292 | 18222 | ack-only packets sent
tcps_rcvpack | 218625 | 18222 | packets received in sequence
tcps_rcvbyte | 292389174 | 2272125 | bytes received in sequence
tcps_rcvackpack | 18221 | 36416 | rcvd ack packets
tcps_rcvackbyte | 2271876 | 291975046 | tx bytes acked by rcvd acks
tcps_rcvackbyte_of | 9097 | 18221 | tx bytes acked by rcvd acks - overflow acked
tcps_preddat | 200404 | 0 | times hdr predict ok for data pkts
- | --- | --- |
UDP | --- | --- |
- | --- | --- |
- | --- | --- |
Flow Table | --- | --- |
- | --- | --- |
redirect_rx_ok | 1022 | 1022 | redirect to rx OK

Global Statistitcs

connection : 10.72.68.223, Port 4501 total_tx_L2 : 77.49 Mb/sec
version : ASTF @ v2.54 total_tx_L1 : 79.14 Mb/sec
cpu_util. : 2.65% @ 1 cores (1 per dual port) total_rx : 77.56 Mb/sec
rx_cpu_util. : 0.19% / 2 Kpkt/sec total_pps : 10.32 Kpkt/sec
async_util. : 0.1% / 1.49 KB/sec drop_rate : 0 b/sec
queue_full : 0 pkts

Port Statistics

port | 0 | 1 | total
-----------+-------------------+-------------------+------------------
owner | root | root |
link | UP | UP |
state | TRANSMITTING | TRANSMITTING |
speed | 1 Gb/s | 1 Gb/s |
CPU util. | 2.65% | 2.65% |
-- | | |
Tx bps L2 | 1.87 Mbps | 75.62 Mbps | 77.49 Mbps
Tx bps L1 | 2.26 Mbps | 76.89 Mbps | 79.14 Mbps
Tx pps | 2.39 Kpps | 7.93 Kpps | 10.32 Kpps
Line Util. | 0.23 % | 7.69 % |
--- | | |
Rx bps | 75.68 Mbps | 1.87 Mbps | 77.56 Mbps
Rx pps | 7.96 Kpps | 2.39 Kpps | 10.34 Kpps
---- | | |
opackets | 248231 | 817999 | 1066230
ipackets | 823598 | 253330 | 1076928
obytes | 24287934 | 972530700 | 996818634
ibytes | 972873040 | 24614270 | 997487310
tx-pkts | 248.23 Kpkts | 818 Kpkts | 1.07 Mpkts
rx-pkts | 823.6 Kpkts | 253.33 Kpkts | 1.08 Mpkts
tx-bytes | 24.29 MB | 972.53 MB | 996.82 MB
rx-bytes | 972.87 MB | 24.61 MB | 997.49 MB
----- | | |
oerrors | 0 | 0 | 0
ierrors | 0 | 0 | 0

status: \

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tui>

hanoh haim

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May 21, 2019, 12:07:22 PM5/21/19

to Marc Ientilucci, TRex Traffic Generator

This means that TRex has a link stability issue at startup. Do you have loopback ?

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Hanoh

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Marc Ientilucci

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May 21, 2019, 12:08:24 PM5/21/19

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> HanohSent from my iPhone

when i run in loopback, everything works perfectly.

Marc Ientilucci

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May 23, 2019, 9:38:55 AM5/23/19

to TRex Traffic Generator

is there any way around the link stability issue at startup?

hanoh haim

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May 23, 2019, 9:42:20 AM5/23/19

to Marc Ientilucci, TRex Traffic Generator

Hi Mark,

It is not a TRex issue, it is your DUT issue

You said it yourself that TRex works fine in loopback right?

thanks

Hanoh

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Graeme

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May 24, 2019, 7:26:18 AM5/24/19

to TRex Traffic Generator

could it be a protocol initialisation running on the ports your are connecting trex to? e.g. spanning tree

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