Hello all,
It looks like the input interface is not receiving all packets. iperf
is sending 35176 packets but GigabitEthernet0/14/1 is showing only
15390 rx packets, which is approximately 56% packet loss. So this is
not a policer issue, but some thing related to dpdk-input I guess. My
startup config has dpdk section totally commented out. Is this a case
of missing some parameters?
[ ID] Interval Transfer Bitrate Jitter
Lost/Total Datagrams
[ 5] 0.00-10.00 sec 47.7 MBytes 40.0 Mbits/sec 0.000 ms
0/35176 (0%) sender
[SUM] 0.0-10.0 sec 13 datagrams received out-of-order
[ 5] 0.00-10.00 sec 20.8 MBytes 17.4 Mbits/sec 0.131 ms
19827/35176 (56%) receiver
DBGvpp# sh int GigabitEthernet0/14/1
Name Idx State MTU (L3/IP4/IP6/MPLS)
Counter Count
GigabitEthernet0/14/1 1 up 1500/0/0/0 rx
packets 15390
rx
bytes 22443048
tx
packets 32
tx
bytes 2533
drops 12
punt 1
ip4 15386
Thanks and Regards,
Raj
On Mon, Dec 23, 2019 at 11:25 PM Raj via Lists.Fd.Io
<[email protected]> wrote:
>
> Hello all,
>
> In VPP I have configured policer to limit 50mbps bandwidth upload and
> download to an IP.
>
> vpp# sh policer
> Name "lap50_dw_20191223_212712" type 2r3c-4115
> cir 51200 eir 51456 cb 12800 eb 1536000
> rate type kbps, round type up
> conform action transmit, exceed action transmit, violate action drop
>
> Template policer at 7ff7b20cb36c: dual rate, not color-aware
> cir 709911 tok/period, pir 713461 tok/period, scale 11
> cur lim 26214400, cur bkt 26214400, ext lim 3145728000, ext bkt 3145728000
> last update 0
> -----------
> Name "lap50_up_20191223_212712" type 2r3c-4115
> cir 51200 eir 51456 cb 12800 eb 1536000
> rate type kbps, round type up
> conform action transmit, exceed action transmit, violate action drop
>
> Template policer at 7ff7b20cb3ac: dual rate, not color-aware
> cir 709911 tok/period, pir 713461 tok/period, scale 11
> cur lim 26214400, cur bkt 26214400, ext lim 3145728000, ext bkt 3145728000
> last update 0
>
> When iperf is run over UDP and TCP from a server with a round trip
> time of 24ms I get full 50mbps for TCP and UDP for both upload and
> download.
>
> But when the same test is performed from a server with rtt of 162ms or
> even 46ms, I get full upload speed, but download speed is around
> 17mbps, for both TCP and UDP.
>
> The iperf server is running on remote server and in local machine I
> used the following command:
>
> iperf3 -c <server ip> -t 20 -u -b 40M -R.
>
> This is kind of baffling and would appreciate if there are any
> pointers I can look to figure out what is happening.
>
> The output is as follows (here I am testing with 40mbps UDP in iperf)
>
> 24ms:
>
> [ ID] Interval Transfer Bitrate Jitter
> Lost/Total Datagrams
> [ 5] 0.00-1.00 sec 4.89 MBytes 41.0 Mbits/sec 0.014 ms 0/3613 (0%)
> [ 5] 1.00-2.00 sec 4.76 MBytes 40.0 Mbits/sec 0.019 ms 0/3517 (0%)
> [ 5] 2.00-3.00 sec 4.77 MBytes 40.0 Mbits/sec 0.017 ms 0/3521 (0%)
> [ 5] 3.00-4.00 sec 4.77 MBytes 40.0 Mbits/sec 0.018 ms 0/3521 (0%)
> [ 5] 4.00-5.00 sec 4.77 MBytes 40.0 Mbits/sec 0.017 ms 0/3521 (0%)
> [ 5] 5.00-6.00 sec 4.77 MBytes 40.0 Mbits/sec 0.018 ms 0/3524 (0%)
> [ 5] 6.00-7.00 sec 4.77 MBytes 40.0 Mbits/sec 0.021 ms 0/3519 (0%)
> [ 5] 7.00-8.00 sec 4.77 MBytes 40.0 Mbits/sec 0.020 ms 0/3521 (0%)
> [ 5] 8.00-9.00 sec 4.77 MBytes 40.0 Mbits/sec 0.024 ms 0/3522 (0%)
> [ 5] 9.00-10.00 sec 4.76 MBytes 40.0 Mbits/sec 0.023 ms 0/3517 (0%)
> [ 5] 10.00-11.00 sec 4.77 MBytes 40.0 Mbits/sec 0.020 ms 0/3523 (0%)
> [ 5] 11.00-12.00 sec 4.77 MBytes 40.0 Mbits/sec 0.016 ms 0/3522 (0%)
> [ 5] 12.00-13.00 sec 4.76 MBytes 40.0 Mbits/sec 0.020 ms 0/3518 (0%)
> [ 5] 13.00-14.00 sec 4.77 MBytes 40.0 Mbits/sec 0.018 ms 0/3522 (0%)
> [ 5] 14.00-15.00 sec 4.77 MBytes 40.0 Mbits/sec 0.018 ms 0/3523 (0%)
> [ 5] 15.00-16.00 sec 4.77 MBytes 40.0 Mbits/sec 0.022 ms 0/3520 (0%)
> [ 5] 16.00-17.00 sec 4.77 MBytes 40.0 Mbits/sec 0.020 ms 0/3522 (0%)
> [ 5] 17.00-18.00 sec 4.77 MBytes 40.0 Mbits/sec 0.019 ms 0/3520 (0%)
> [ 5] 18.00-19.00 sec 4.76 MBytes 40.0 Mbits/sec 0.025 ms 0/3518 (0%)
> [ 5] 19.00-20.00 sec 4.77 MBytes 40.0 Mbits/sec 0.022 ms 0/3524 (0%)
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Jitter
> Lost/Total Datagrams
> [ 5] 0.00-20.00 sec 95.5 MBytes 40.1 Mbits/sec 0.000 ms
> 0/70555 (0%) sender
> [SUM] 0.0-20.0 sec 58 datagrams received out-of-order
> [ 5] 0.00-20.00 sec 95.5 MBytes 40.1 Mbits/sec 0.019 ms
> 0/70555 (0%) receiver
>
> 46ms:
>
> [ ID] Interval Transfer Bitrate Jitter
> Lost/Total Datagrams
> [ 5] 0.00-1.00 sec 2.09 MBytes 17.5 Mbits/sec 0.124 ms 1930/3473
> (56%)
> [ 5] 1.00-2.00 sec 2.14 MBytes 17.9 Mbits/sec 0.135 ms 1978/3557
> (56%)
> [ 5] 2.00-3.00 sec 2.12 MBytes 17.8 Mbits/sec 0.142 ms 1926/3489
> (55%)
> [ 5] 3.00-4.00 sec 2.26 MBytes 19.0 Mbits/sec 0.151 ms 1905/3575
> (53%)
> [ 5] 4.00-5.00 sec 2.07 MBytes 17.4 Mbits/sec 0.131 ms 1959/3490
> (56%)
> [ 5] 5.00-6.00 sec 2.13 MBytes 17.8 Mbits/sec 0.127 ms 1961/3532
> (56%)
> [ 5] 6.00-7.00 sec 2.09 MBytes 17.5 Mbits/sec 0.128 ms 1984/3525
> (56%)
> [ 5] 7.00-8.00 sec 2.08 MBytes 17.4 Mbits/sec 0.126 ms 1982/3515
> (56%)
> [ 5] 8.00-9.00 sec 2.03 MBytes 17.0 Mbits/sec 0.133 ms 2025/3523
> (57%)
> [ 5] 9.00-10.00 sec 1.99 MBytes 16.7 Mbits/sec 0.127 ms 2049/3521
> (58%)
> [ 5] 10.00-11.00 sec 1.99 MBytes 16.7 Mbits/sec 0.132 ms 2072/3543
> (58%)
> [ 5] 11.00-12.00 sec 2.02 MBytes 16.9 Mbits/sec 0.131 ms 2013/3503
> (57%)
> [ 5] 12.00-13.00 sec 1.99 MBytes 16.7 Mbits/sec 0.137 ms 2058/3531
> (58%)
> [ 5] 13.00-14.00 sec 2.11 MBytes 17.7 Mbits/sec 0.150 ms 1954/3512
> (56%)
> [ 5] 14.00-15.00 sec 2.01 MBytes 16.9 Mbits/sec 0.127 ms 1995/3479
> (57%)
> [ 5] 15.00-16.00 sec 1.96 MBytes 16.5 Mbits/sec 0.132 ms 2133/3582
> (60%)
> [ 5] 16.00-17.00 sec 2.01 MBytes 16.8 Mbits/sec 0.131 ms 2011/3492
> (58%)
> [ 5] 17.00-18.00 sec 2.03 MBytes 17.0 Mbits/sec 0.129 ms 1993/3493
> (57%)
> [ 5] 18.00-19.00 sec 2.04 MBytes 17.1 Mbits/sec 0.132 ms 2059/3566
> (58%)
> [ 5] 19.00-20.00 sec 2.12 MBytes 17.8 Mbits/sec 0.127 ms 1970/3533
> (56%)
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Jitter
> Lost/Total Datagrams
> [ 5] 0.00-20.00 sec 95.4 MBytes 40.0 Mbits/sec 0.000 ms
> 0/70434 (0%) sender
> [SUM] 0.0-20.0 sec 14 datagrams received out-of-order
> [ 5] 0.00-20.00 sec 41.3 MBytes 17.3 Mbits/sec 0.127 ms
> 39957/70434 (57%) receiver
>
> 162ms:
>
> [ ID] Interval Transfer Bitrate Jitter
> Lost/Total Datagrams
> [ 5] 0.00-1.00 sec 2.04 MBytes 17.1 Mbits/sec 0.149 ms 1976/3484
> (57%)
> [ 5] 1.00-2.00 sec 2.08 MBytes 17.4 Mbits/sec 0.149 ms 1993/3527
> (57%)
> [ 5] 2.00-3.00 sec 2.05 MBytes 17.2 Mbits/sec 0.160 ms 2015/3527
> (57%)
> [ 5] 3.00-4.00 sec 1.99 MBytes 16.7 Mbits/sec 0.138 ms 2035/3508
> (58%)
> [ 5] 4.00-5.00 sec 2.03 MBytes 17.0 Mbits/sec 0.137 ms 2025/3525
> (57%)
> [ 5] 5.00-6.00 sec 2.02 MBytes 16.9 Mbits/sec 0.147 ms 2047/3537
> (58%)
> [ 5] 6.00-7.00 sec 2.02 MBytes 16.9 Mbits/sec 0.137 ms 2060/3552
> (58%)
> [ 5] 7.00-8.00 sec 2.01 MBytes 16.9 Mbits/sec 0.142 ms 1989/3473
> (57%)
> [ 5] 8.00-9.00 sec 2.04 MBytes 17.1 Mbits/sec 0.152 ms 2068/3572
> (58%)
> [ 5] 9.00-10.00 sec 2.02 MBytes 17.0 Mbits/sec 0.144 ms 2000/3493
> (57%)
> [ 5] 10.00-11.00 sec 2.07 MBytes 17.3 Mbits/sec 0.136 ms 2006/3531
> (57%)
> [ 5] 11.00-12.00 sec 2.07 MBytes 17.4 Mbits/sec 0.141 ms 2011/3540
> (57%)
> [ 5] 12.00-13.00 sec 2.02 MBytes 16.9 Mbits/sec 0.133 ms 1968/3458
> (57%)
> [ 5] 13.00-14.00 sec 2.03 MBytes 17.1 Mbits/sec 0.139 ms 2026/3528
> (57%)
> [ 5] 14.00-15.00 sec 2.01 MBytes 16.9 Mbits/sec 0.136 ms 2031/3516
> (58%)
> [ 5] 15.00-16.00 sec 2.07 MBytes 17.4 Mbits/sec 0.143 ms 2021/3551
> (57%)
> [ 5] 16.00-17.00 sec 2.06 MBytes 17.3 Mbits/sec 0.138 ms 1972/3495
> (56%)
> [ 5] 17.00-18.00 sec 2.07 MBytes 17.4 Mbits/sec 0.143 ms 2009/3537
> (57%)
> [ 5] 18.00-19.00 sec 2.05 MBytes 17.2 Mbits/sec 0.165 ms 2050/3563
> (58%)
> [ 5] 19.00-20.00 sec 2.06 MBytes 17.3 Mbits/sec 0.142 ms 1952/3473
> (56%)
> - - - - - - - - - - - - - - - - - - - - - - - - -
> [ ID] Interval Transfer Bitrate Jitter
> Lost/Total Datagrams
> [ 5] 0.00-20.00 sec 96.0 MBytes 40.3 Mbits/sec 0.000 ms
> 0/70904 (0%) sender
> [SUM] 0.0-20.0 sec 67 datagrams received out-of-order
> [ 5] 0.00-20.00 sec 41.2 MBytes 17.3 Mbits/sec 0.106 ms
> 40505/70904 (57%) receiver
>
>
>
> Thanks and Regards,
>
> Raj
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