[P4-dev] P4-dev Digest, Vol 19, Issue 17

aditya dogra dogra.aditya at gmail.com
Fri Aug 11 10:30:57 EDT 2017


Hi Avinash ,

       We are running the INT demo . We are observing the INT header
getting updated at nodes when we run the iperf session for longer time
[root at addogra-VirtualBox:~/p4git/p4factory/mininet# *iperf -c 10.2.1.4 -t
700*] .

*However we are observing an error “failed to find filter. packet not
transformed” continuously in all bmv2_driver.log . *

*Also we are not seeing any flows in the chrome App. *



Hence *wanted to confirm with you if our observation is correct . *



*On the leaf1 , when we do TCPDUMP  *



13:46:22.446974 IP (tos 0x0, ttl 61, id 32695, offset 0, flags [none],
proto UDP (17), length 434)

    10.0.4.4.34371 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni 10

    MPLS (label 4 (rsvd), exp 5, [S], ttl 3)

     0x0000:  4500 01b2 7fb7 0000 3d11 e37f 0a00 0404  E.......=.......

     0x0010:  0a00 0101 8643 12b6 019e 0000 *0c00 0005  .....C..........*

*     0x0020:  0000 0a00 0000 4b03 0003 2018 b000 0000*  ......K.........

     0x0030:  0000 00a2 0000 002c 0000 0000 0000 00b1  .......,........

     0x0040:  0000 0559 0000 0001 0000 00a1 0000 0021  ...Y...........!

     0x0050:  0000 0000 0000 00b2 0000 08b9 0000 0002  ................

     0x0060:  0000 00a2 0000 21f8 0000 0000 0000 00b1  ......!.........

     0x0070:  0000 0031 0000 0000 0000 00a1 0000 0041  ...1...........A

     0x0080:  0000 0000 0000 00b2 0000 003a 0000 0000  ...........:....

     0x0090:  0000 00a2 0000 0012 0000 0000 0000 00b1  ................

     0x00a0:  0000 000e 0000 0000 0000 00a1 0000 0097  ................

     0x00b0:  0000 0000 0000 00b2 0000 0023 0000 0000  ...........#....

     0x00c0:  0000 00a2 0000 0112 0000 0000 0000 00b1  ................

     0x00d0:  0000 000c 0000 0000 0000 00a1 0000 0012  ................

     0x00e0:  0000 0000 0000 00b2 0000 0309 0000 0000  ................

     0x00f0:  0000 00a2 0000 001a 0000 0000 0000 00b1  ................

     0x0100:  0000 0025 0000 0000 0000 00a1 0000 0a0c  ...%............





*On Leaf 2 , when we do TCPDUMP , it show this *



13:48:09.785911 IP (tos 0x0, ttl 61, id 25133, offset 0, flags [none],
proto UDP (17), length 1410)

    10.0.1.1.50333 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni 10

    MPLS (label 0 (IPv4 explicit NULL), exp 7, [S], ttl 3)

     IP0

     0x0000:  4500 0582 622d 0000 3d11 fd39 0a00 0101  E...b-..=..9....

     0x0010:  0a00 0404 c49d 12b6 056e 0000 *0c00 0005  .........n......*

*     0x0020:  0000 0a00 0000 0f03 0003 2004 b000 0000*  ................

     0x0030:  0000 00b2 0000 0022 0000 0000 0000 00a1  ......."........

     0x0040:  0000 001c 0000 0000 0000 00b1 0000 0c2f  .............../

     0x0050:  0000 0000 0000 00a2 0000 126c 8000 0000  ...........l....

     0x0060:  0011 2233 4454 0011 2233 4451 0800 4500  .."3DT.."3DQ..E.

     0x0070:  0514 2a6f 4000 4006 f56c 0a02 0101 0a02  ..*o at .@..l......

     0x0080:  0104 db4e 1389 dbe3 04a1 5a7c 5015 8010  ...N......Z|P...

     0x0090:  0032 a930 0000 0101 080a 000f 7d7a 000f  .2.0........}z..

     0x00a0:  7b3e 3839 3031 3233 3435 3637 3839 3031  {>89012345678901

     0x00b0:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x00c0:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x00d0:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x00e0:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x00f0:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0100:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0110:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0120:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0130:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0140:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0150:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0160:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0170:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0180:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0190:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x01a0:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x01b0:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x01c0:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x01d0:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x01e0:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x01f0:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0200:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0210:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0220:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0230:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0240:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0250:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0260:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0270:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0280:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0290:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x02a0:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x02b0:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x02c0:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x02d0:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x02e0:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x02f0:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0300:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0310:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0320:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0330:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0340:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0350:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0360:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0370:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0380:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0390:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x03a0:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x03b0:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x03c0:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x03d0:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x03e0:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x03f0:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0400:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0410:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0420:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0430:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0440:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0450:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0460:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0470:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0480:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0490:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x04a0:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x04b0:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x04c0:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x04d0:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x04e0:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x04f0:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0500:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0510:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0520:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0530:  3435 3637 3839 3031 3233 3435 3637 3839  4567890123456789

     0x0540:  3031 3233 3435 3637 3839 3031 3233 3435  0123456789012345

     0x0550:  3637 3839 3031 3233 3435 3637 3839 3031  6789012345678901

     0x0560:  3233 3435 3637 3839 3031 3233 3435 3637  2345678901234567

     0x0570:  3839 3031 3233 3435 3637 3839 3031 3233  8901234567890123

     0x0580:  3435



On Spine 2 , when we do TCPDUMP , it show this



14:09:03.783073 IP (tos 0x0, ttl 64, id 45574, offset 0, flags [none],
proto UDP (17), length 1410)

    10.0.1.1.50333 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni 10

    MPLS (label 0 (IPv4 explicit NULL), exp 7, [S], ttl 3)

     IP0

     0x0000:  4500 0582 b206 0000 4011 aa60 0a00 0101

     0x0010:  0a00 0404 c49d 12b6 056e 0000 *0c00 0005*

*     0x0020:  0000 0a00 0000 0f03 0003 2004 b000 0000*

     0x0030:  0000 00b2 0000 1121 0000 0000 0000 00a2

     0x0040:  0000 064c 0000 0000 0000 00b1 0000 019e

     0x0050:  0000 0000 0000 00a1 0000 00a1 8000 0000

     0x0060:  0011 2233 4454 0011 2233 4451 0800 4500

     0x0070:  0514 d460 4000 4006 4b7b 0a02 0101 0a02

     0x0080:  0104 db4e 1389 f04f b401 5a7c 5015 8010

     0x0090:  0032 5022 0000 0101 080a 0014 4597 0014

     0x00a0:  4455 3435 3637 3839 3031 3233 3435 3637

     0x00b0:  3839 3031 3233 3435 3637 3839 3031 3233

     0x00c0:  3435 3637 3839 3031 3233 3435 3637 3839

     0x00d0:  3031 3233 3435 3637 3839 3031 3233 3435

     0x00e0:  3637 3839 3031 3233 3435 3637 3839 3031

     0x00f0:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0100:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0110:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0120:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0130:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0140:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0150:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0160:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0170:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0180:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0190:  3233 3435 3637 3839 3031 3233 3435 3637

     0x01a0:  3839 3031 3233 3435 3637 3839 3031 3233

     0x01b0:  3435 3637 3839 3031 3233 3435 3637 3839

     0x01c0:  3031 3233 3435 3637 3839 3031 3233 3435

     0x01d0:  3637 3839 3031 3233 3435 3637 3839 3031

     0x01e0:  3233 3435 3637 3839 3031 3233 3435 3637

     0x01f0:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0200:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0210:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0220:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0230:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0240:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0250:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0260:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0270:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0280:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0290:  3839 3031 3233 3435 3637 3839 3031 3233

     0x02a0:  3435 3637 3839 3031 3233 3435 3637 3839

     0x02b0:  3031 3233 3435 3637 3839 3031 3233 3435

     0x02c0:  3637 3839 3031 3233 3435 3637 3839 3031

     0x02d0:  3233 3435 3637 3839 3031 3233 3435 3637

     0x02e0:  3839 3031 3233 3435 3637 3839 3031 3233

     0x02f0:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0300:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0310:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0320:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0330:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0340:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0350:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0360:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0370:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0380:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0390:  3435 3637 3839 3031 3233 3435 3637 3839

     0x03a0:  3031 3233 3435 3637 3839 3031 3233 3435

     0x03b0:  3637 3839 3031 3233 3435 3637 3839 3031

     0x03c0:  3233 3435 3637 3839 3031 3233 3435 3637

     0x03d0:  3839 3031 3233 3435 3637 3839 3031 3233

     0x03e0:  3435 3637 3839 3031 3233 3435 3637 3839

     0x03f0:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0400:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0410:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0420:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0430:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0440:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0450:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0460:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0470:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0480:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0490:  3031 3233 3435 3637 3839 3031 3233 3435

     0x04a0:  3637 3839 3031 3233 3435 3637 3839 3031

     0x04b0:  3233 3435 3637 3839 3031 3233 3435 3637

     0x04c0:  3839 3031 3233 3435 3637 3839 3031 3233

     0x04d0:  3435 3637 3839 3031 3233 3435 3637 3839

     0x04e0:  3031 3233 3435 3637 3839 3031 3233 3435

     0x04f0:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0500:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0510:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0520:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0530:  3031 3233 3435 3637 3839 3031 3233 3435

     0x0540:  3637 3839 3031 3233 3435 3637 3839 3031

     0x0550:  3233 3435 3637 3839 3031 3233 3435 3637

     0x0560:  3839 3031 3233 3435 3637 3839 3031 3233

     0x0570:  3435 3637 3839 3031 3233 3435 3637 3839

     0x0580:  3031





Regards,
Aditya Dogra
"When the going gets tough, the tough get going"

On Mon, Aug 7, 2017 at 10:05 AM, aditya dogra <dogra.aditya at gmail.com>
wrote:

> Hi Avinash/Dongeun,
>
>         We are running the INT Demo and observing that the *Chrome app is
> not showing up any delay or any flow.*  Can you please tell what could
> have caused this problem ?
>
>
>
> We are observing the following error in the Leaf-1 and Leaf-2 .
>
>
> root at leaf1:/tmp# ls
> bmv2-0-notifications.ipc  bmv2_driver.log  bmv2_model.log  start.sh
> root at leaf1:/tmp# more bmv2_driver.log
> Starting RPC server on port 9090
> Adding Thrift service for P4 program dc to server
> Starting API RPC server on port 9091
> RPC Initialization
> Starting SAI RPC server on port 9092
> vlan already exists 14000001switcht_api_init
> switcht_api_int_transit_enable/disable = 1
>
> *failed to find filter. packet not transformed failed to find filter.
> packet not transformedfailed to find filter. packet not transformed failed
> to find filter.*
>
>
> Is the above error related to the issue.
>
>
>
> We have updated the submodules of p4factory once and got the latest code
> of the submodules. We have rebuild submodules and docker switch.
>
>
>
> Also we did the TCP Dump at Leaf-1 and Leaf-2 after starting the iperf
> session for 600 seconds .
>
>
> Started a long running iperf session
>
> root at addogra-VirtualBox:/home/addogra/p4git/p4factory/mininet# iperf -c
> 10.2.1.3 -t 600
>
>
>
> *Leaf-1 TCP Dump output *
>
> *root at leaf1:/tmp# sudo /usr/bin/tcpdump -i leaf1-eth1 -vv*
>
>
> 04:24:59.552027 IP (tos 0x0, ttl 64, id 33041, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.1.1.55493 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:24:59.972394 IP (tos 0x0, ttl 63, id 53566, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.2.2.58030 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:24:59.972477 IP (tos 0x0, ttl 64, id 6948, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.1.1.58030 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:00.016916 IP (tos 0x0, ttl 61, id 34436, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.4.4.46199 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:00.017079 IP (tos 0x0, ttl 64, id 57115, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.1.1.46199 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:00.757490 IP (tos 0x0, ttl 61, id 37823, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.3.3.55493 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:00.757558 IP (tos 0x0, ttl 64, id 33253, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.1.1.55493 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:00.794022 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has
> 10.1.21.2 tell 10.1.21.1, length 28
> 04:25:00.974866 IP (tos 0x0, ttl 63, id 53607, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.2.2.58030 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:00.974908 IP (tos 0x0, ttl 64, id 7013, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.1.1.58030 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:01.069164 IP (tos 0x0, ttl 61, id 34630, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.4.4.46199 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:01.069347 IP (tos 0x0, ttl 64, id 57364, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.1.1.46199 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> ^C
> 213 packets captured
> 213 packets received by filter
> 0 packets dropped by kernel
> root at leaf1:/tmp#
>
>
> Leaf-2 TCP Dump output
>
>
>
> *root at leaf2:/# sudo /usr/bin/tcpdump -i leaf2-eth1 -vv *
> 04:25:08.781803 IP (tos 0x0, ttl 64, id 9660, offset 0, flags [none],
> proto UDP (17), length 1362)
>     10.0.3.3.56371 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.782319 IP (tos 0x0, ttl 61, id 63814, offset 0, flags [none],
> proto UDP (17), length 142)
>     10.0.2.2.56371 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.783248 IP (tos 0x0, ttl 61, id 63815, offset 0, flags [none],
> proto UDP (17), length 142)
>     10.0.2.2.56371 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.783760 IP (tos 0x0, ttl 64, id 9662, offset 0, flags [none],
> proto UDP (17), length 1362)
>     10.0.3.3.56371 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.786295 IP (tos 0x0, ttl 64, id 9663, offset 0, flags [none],
> proto UDP (17), length 1362)
>     10.0.3.3.56371 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.788428 IP (tos 0x0, ttl 64, id 9664, offset 0, flags [none],
> proto UDP (17), length 1362)
>     10.0.3.3.56371 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.788574 IP (tos 0x0, ttl 61, id 63817, offset 0, flags [none],
> proto UDP (17), length 142)
>     10.0.2.2.56371 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.788579 IP (tos 0x0, ttl 61, id 63818, offset 0, flags [none],
> proto UDP (17), length 142)
>     10.0.2.2.56371 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.789828 IP (tos 0x0, ttl 61, id 63819, offset 0, flags [none],
> proto UDP (17), length 142)
>     10.0.2.2.56371 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.790370 IP (tos 0x0, ttl 64, id 39176, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.3.3.55493 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:25:08.790773 IP (tos 0x0, ttl 64, id 9667, offset 0, flags [none],
> proto UDP (17), length 1362)
>     10.0.3.3.56371 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> ^C
> 33313 packets captured
> 34214 packets received by filter
> 899 packets dropped by kernel
> root at leaf2:/#
>
>
> *root at leaf2:/# sudo /usr/bin/tcpdump -i leaf2-eth2 -vv*
>
> 04:26:59.600932 IP (tos 0x0, ttl 64, id 24692, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.4.4.41863 > 10.0.2.2.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:26:59.707914 IP (tos 0x0, ttl 63, id 63593, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.3.3.38516 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:26:59.973335 IP (tos 0x0, ttl 64, id 49457, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.4.4.46199 > 10.0.1.1.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:27:00.084384 IP (tos 0x0, ttl 61, id 47024, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.2.2.41863 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:27:00.343859 IP (tos 0x0, ttl 64, id 32992, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.4.4.38516 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:27:00.426942 IP (tos 0x0, ttl 63, id 63699, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.3.3.38516 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> 04:27:00.427055 IP (tos 0x0, ttl 64, id 32993, offset 0, flags [none],
> proto UDP (17), length 146)
>     10.0.4.4.38516 > 10.0.3.3.4790: [no cksum] VXLAN-GPE, flags [IP], vni
> 10
>     MPLS (label 0 (IPv4 explicit NULL), exp 1, [S], ttl 3)
>     IP0
> ^C
> 33 packets captured
> 33 packets received by filter
> 0 packets dropped by kernel
> root at leaf2:/#
>
>
>
> Regards,
> Aditya Dogra
> "When the going gets tough, the tough get going"
>
> On Thu, Mar 9, 2017 at 10:28 PM, <p4-dev-request at lists.p4.org> wrote:
>
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>> Today's Topics:
>>
>>    1. Re: Error while running the INT app from p4factory (Avinash Herle)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Thu, 9 Mar 2017 08:57:35 -0800
>> From: Avinash Herle <avinash.herle at barefootnetworks.com>
>> To: Dongeun Suh <dongeunsuh at gmail.com>
>> Cc: p4-dev <p4-dev at lists.p4.org>
>> Subject: Re: [P4-dev] Error while running the INT app from p4factory
>> Message-ID:
>>         <CA+mL89JQ2yRPnULjU9M3LEAVxPLqZFrzkpz9j-h5dP19jZdv2w at mail.
>> gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi Dongeun,
>>
>> Do update the submodules of p4factory once and get the latest code of the
>> submodules. You'll need to rebuild submodules and docker switch.
>>
>> Check the tcpdump inside the docker container, not the host machine.
>>
>> 1) Run the mininet script
>> 2) Start a long running iperf session say, h1 perf -c 10.2.1.4 -t 100
>> 3) Open another window and console into
>>      a) switch leaf1 (since it is connected to the source h1). Do a
>> tcpdump
>> on the interface leaf1-eth1 (interface connected to h1). The host h1 is
>> supposed to add the INT shim header. Verify if the INT header is added.
>>      b) switch leaf2 (since it is connected to the destination h4). Do a
>> tcpdump on the interface leaf2-eth2 (interface connected to h4).
>> 4) Do refer the INT spec
>> <http://p4.org/wp-content/uploads/fixed/INT/INT-current-spec.pdf> when
>> verifying the tcpdump.
>>
>> Thanks
>>
>>
>> On Wed, Mar 8, 2017 at 11:06 PM, Dongeun Suh <dongeunsuh at gmail.com>
>> wrote:
>>
>> > Hi Avinash,
>> >
>> > This is a tcpdump result.
>> >
>> > In the mininet, I ran iperf as follows.
>> >
>> > mininet> h1 iperf -c 10.2.1.4 -t 100
>> >
>> > After that, in host machine, I ran tcpdump.
>> > The following is tcpdump result for a packet that seems like a iperf
>> > packet from h1 to h4.
>> >
>> >
>> > $ sudo tcpdump -i docker0 -vv
>> >
>> > ...
>> > 16:00:13.516909 IP (tos 0x0, ttl 62, id 19360, offset 0, flags [none],
>> > proto UDP (17), length 1374)
>> >     10.0.1.1.36915 > 10.0.4.4.4790: [no cksum] VXLAN-GPE, flags [IP],
>> vni
>> > 10
>> >     MPLS (label 0 (IPv4 explicit NULL), exp 3, ttl 3)
>> > (label 50, exp 0, ttl 1)
>> > (label 720896, exp 0, ttl 0)
>> > (label 0 (IPv4 explicit NULL), exp 0, ttl 161)
>> > (label 0 (IPv4 explicit NULL), exp 0, ttl 0)
>> > (label 524288, exp 0, ttl 0)
>> > (label 274, exp 1, ttl 51)
>> > (label 279872, exp 0, ttl 17)
>> > (label 140084, exp 2, ttl 81)
>> > (label 32772, exp 2, [S], ttl 0)
>> > ...
>> >
>> > Thank you.
>> > Dongeun Suh.
>> >
>> >
>> >
>> > 2017-03-09 11:05 GMT+09:00 Avinash Herle <avinash.herle@
>> > barefootnetworks.com>:
>> >
>> >> Hi Dongeun,
>> >>
>> >> Could you dump more information while collecting tcpdump?
>> >>
>> >> On Wed, Mar 8, 2017 at 5:26 PM, Dongeun Suh <dongeunsuh at gmail.com>
>> wrote:
>> >>
>> >>> Hi Avinash,
>> >>>
>> >>> Since I didn't get any reponses from you, I'm repeating the message
>> >>> below..
>> >>>
>> >>> Regards,
>> >>> Dongeun.
>> >>>
>> >>>
>> >>>
>> >>> 2017. 3. 6. ?? 4:08? "Dongeun Suh" <dongeunsuh at gmail.com>?? ??:
>> >>>
>> >>>> Hi Avinash,
>> >>>> Thank you for your kind response.
>> >>>>
>> >>>> Please check the bolded inlines which are reponses to your last
>> advises.
>> >>>>
>> >>>
>> >>>> Thanks in advance.
>> >>>> Dongeun.
>> >>>>
>> >>>> 2017-02-22 1:57 GMT+09:00 Avinash Herle
>> <avinash.herle at barefootnetwork
>> >>>> s.com>:
>> >>>>
>> >>>>> Couple of quick question Dongeun.
>> >>>>> 1) Did you install the VXLAN_GPE driver and the other dependencies
>> >>>>> mentioned in this realm
>> >>>>> <https://github.com/p4lang/p4factory/tree/master/apps/int>?
>> >>>>>
>> >>>>
>> >>>> *I installed all the driver / dependencies. *
>> >>>>
>> >>>>
>> >>>> 2) Once you run the mininet scripts you should see a few log files
>> >>>>> (prefixed with tmp_) generated in the path <p4factory>/mininet. Do
>> they
>> >>>>> report any error?
>> >>>>>
>> >>>>>
>> >>>> *While 'tmp_client_msg_handler' and 'tmp_monitor' files are empty. I
>> >>>> found the following messages in 'tmp_h1', 'tmp_h2', 'tmp_h3',
>> 'tmp_h4'.*
>> >>>>
>> >>>> *WARNING: No route found for IPv6 destination :: (no default route?).
>> >>>> This affects only IPv6 *
>> >>>>
>> >>>>
>> >>>>> It could also be that the latency values are too small because of
>> >>>>> which they do not show up on the graphs. Please try the follow
>> >>>>>
>> >>>>> 1) Run the mininet script
>> >>>>> 2) Start a long running iperf session say, h1 perf -c 10.2.1.4 -t
>> 100
>> >>>>> 3) Open another window and console into
>> >>>>>      a) switch leaf1 (since it is connected to the source h1). Do a
>> >>>>> tcpdump on the interface leaf1-eth1 (interface connected to h1).
>> The host
>> >>>>> h1 is supposed to add the INT shim header. Verify if the INT header
>> is
>> >>>>> added.
>> >>>>>      b) switch leaf2 (since it is connected to the destination h4).
>> Do
>> >>>>> a tcpdump on the interface leaf2-eth2 (interface connected to h4).
>> >>>>> 4) Do refer the INT spec
>> >>>>> <http://p4.org/wp-content/uploads/fixed/INT/INT-current-spec.pdf>
>> >>>>> when verifying the tcpdump.
>> >>>>>
>> >>>>> *Tcpdump on leaf1-eth1 shows following results (MPLS means that INT
>> >>>> header is added right..?).*
>> >>>>
>> >>>> *...*
>> >>>> *06:57:58.005648 IP 10.0.1.1.60607 > 10.0.4.4.4790: VXLAN-GPE, flags
>> >>>> [IP], vni 10: MPLS (label 0, exp 1, [S], ttl 3) IP0 *
>> >>>> *06:57:58.005648 IP 10.0.1.1.60607 > 10.0.4.4.4790: VXLAN-GPE, flags
>> >>>> [IP], vni 10: MPLS (label 0, exp 1, [S], ttl 3) IP0 *
>> >>>> *...*
>> >>>>
>> >>>> Let me know if you have any more questions.
>> >>>>>
>> >>>>> Also, do not reload/refresh the web client when the application is
>> >>>>> running. You might have to re-run the application in this case.
>> >>>>>
>> >>>>> Thanks,
>> >>>>> Avinash
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>> On Tue, Feb 21, 2017 at 1:43 AM, Dongeun Suh <dongeunsuh at gmail.com>
>> >>>>> wrote:
>> >>>>>
>> >>>>>> Hi Avinash,
>> >>>>>>
>> >>>>>> Sorry for bringing up the issue again.
>> >>>>>>
>> >>>>>> In the INT demo (https://github.com/p4lang/p4f
>> >>>>>> actory/tree/master/apps/int), after running 'int_ref_topology.py',
>> I
>> >>>>>> checked that the four hosts (h1-4, connected with spine1-2,
>> leaf1-2) can
>> >>>>>> receive traffic from each other successfully.
>> >>>>>>
>> >>>>>> However, it seems that INT header is not properly added to the
>> >>>>>> packets and thus, the web client does not show any iperf
>> connection or
>> >>>>>> metric.
>> >>>>>>
>> >>>>>> Can you help me with this problem? The followings are
>> >>>>>> 'bmv2_driver.log' from 'leaf1' container.
>> >>>>>>
>> >>>>>> (in bmv2_driver.log)
>> >>>>>>
>> >>>>>> Starting RPC server on port 9090
>> >>>>>> Adding Thrift service for P4 program dc to server
>> >>>>>> Starting API RPC server on port 9091
>> >>>>>> Starting SAI RPC server on port 9092
>> >>>>>> RPC Initialization
>> >>>>>> vlan already exists 14000001Invalid table (ipv6_fib_lpm) operation
>> >>>>>> (17): DUPLICATE_ENTRY
>> >>>>>> Invalid table (ipv6_fib_lpm) operation (17): DUPLICATE_ENTRY
>> >>>>>> Invalid table (ipv6_fib_lpm) operation (17): DUPLICATE_ENTRY
>> >>>>>> Invalid table (ipv6_fib_lpm) operation (2): INVALID_HANDLE
>> >>>>>> Invalid table (ipv6_fib_lpm) operation (2): INVALID_HANDLE
>> >>>>>> Invalid table (ipv6_fib_lpm) operation (2): INVALID_HANDLE
>> >>>>>> switcht_api_init
>> >>>>>> switcht_api_int_transit_enable/disable = 1
>> >>>>>> @
>> >>>>>> @
>> >>>>>> ...
>> >>>>>> @
>> >>>>>> @
>> >>>>>> failed to find filter. packet not transformed failed to find
>> filter.
>> >>>>>> failed to find filter. packet not transformedfailed to find filter.
>> >>>>>> packet not transformed ... (repeated endlessly)
>> >>>>>>
>> >>>>>> Thanks in advance.
>> >>>>>> Dongeun.
>> >>>>>>
>> >>>>>> 2017-02-14 2:07 GMT+09:00 Avinash Herle <
>> >>>>>> avinash.herle at barefootnetworks.com>:
>> >>>>>>
>> >>>>>>> Looks like you have everything needed within the container to
>> start
>> >>>>>>> the model and driver. Clean out the interfaces once 'sudo mn -c'
>> and try
>> >>>>>>> again.
>> >>>>>>>
>> >>>>>>> On Mon, Feb 13, 2017 at 8:13 AM, Dongeun Suh <
>> dongeunsuh at gmail.com>
>> >>>>>>> wrote:
>> >>>>>>>
>> >>>>>>>> Hi Avinash,
>> >>>>>>>>
>> >>>>>>>> When I build the docker image, I did the following command where
>> >>>>>>>> $HOME was set to other than /root (/home/hosung for my case)
>> >>>>>>>>
>> >>>>>>>> $ cd p4factory/makefiles
>> >>>>>>>> $ make -f docker.mk bmv2-docker-image installpath=$HOME/install
>> >>>>>>>>
>> >>>>>>>> And inside the container, I found the 'install' folder under the
>> >>>>>>>> $HOME of the host machine (which was set to /home/hosung) while
>> $HOME of
>> >>>>>>>> the container machine was set to /root.
>> >>>>>>>>
>> >>>>>>>> root at spine1:/home/hosung/install# ls
>> >>>>>>>> bin  include  lib
>> >>>>>>>>
>> >>>>>>>> Thank you.
>> >>>>>>>> Dongeun Suh.
>> >>>>>>>>
>> >>>>>>>> 2017-02-14 0:38 GMT+09:00 Avinash Herle <
>> >>>>>>>> avinash.herle at barefootnetworks.com>:
>> >>>>>>>>
>> >>>>>>>>> Hi Dongeun,
>> >>>>>>>>>
>> >>>>>>>>> A follow up question, did you provide the installpath as
>> parameter
>> >>>>>>>>> while building the docker image? Inside the container, do you
>> have the
>> >>>>>>>>> $HOME/install folder with the binaries in it?
>> >>>>>>>>>
>> >>>>>>>>> On Mon, Feb 13, 2017 at 7:31 AM, Dongeun Suh <
>> dongeunsuh at gmail.com
>> >>>>>>>>> > wrote:
>> >>>>>>>>>
>> >>>>>>>>>> Hi Avinash,
>> >>>>>>>>>>
>> >>>>>>>>>> Thank you for your kind and prompt response.
>> >>>>>>>>>>
>> >>>>>>>>>> I followed your instruction and under the following 'spine1'
>> >>>>>>>>>> container, there exists 'tmp' folder but it is empty.
>> >>>>>>>>>>
>> >>>>>>>>>> hosung at hosung-VirtualBox:~$ docker ps
>> >>>>>>>>>> CONTAINER ID        IMAGE                 COMMAND
>> >>>>>>>>>>  CREATED             STATUS              PORTS
>> >>>>>>>>>>                   NAMES
>> >>>>>>>>>> e3b15473f647        p4dockerswitch_bmv2   "/bin/sh -c
>> /bin/bash"
>> >>>>>>>>>>   2 minutes ago       Up 2 minutes        0.0.0.0:26002
>> ->9091/tcp,
>> >>>>>>>>>> 0.0.0.0:27002->10001/tcp   spine1
>> >>>>>>>>>>
>> >>>>>>>>>> Thanks.
>> >>>>>>>>>> Dongeun Suh.
>> >>>>>>>>>>
>> >>>>>>>>>>
>> >>>>>>>>>>
>> >>>>>>>>>> 2017-02-13 23:43 GMT+09:00 Avinash Herle <
>> >>>>>>>>>> avinash.herle at barefootnetworks.com>:
>> >>>>>>>>>>
>> >>>>>>>>>>> Hi Dongeun,
>> >>>>>>>>>>>
>> >>>>>>>>>>> Can you console into the docker containers(spine1 in this
>> case)
>> >>>>>>>>>>> and check if the model and driver have started?
>> >>>>>>>>>>>
>> >>>>>>>>>>> docker exec -it <container name> bash
>> >>>>>>>>>>> cd /tmp
>> >>>>>>>>>>> You will find bmv2_model.log and bmv2_driver.log
>> >>>>>>>>>>>
>> >>>>>>>>>>> Please send to me the contents of the logs.
>> >>>>>>>>>>>
>> >>>>>>>>>>> Thanks,
>> >>>>>>>>>>> Avinash
>> >>>>>>>>>>>
>> >>>>>>>>>>> On Mon, Feb 13, 2017 at 6:30 AM, Dongeun Suh <
>> >>>>>>>>>>> dongeunsuh at gmail.com> wrote:
>> >>>>>>>>>>>
>> >>>>>>>>>>>> Hi,
>> >>>>>>>>>>>>
>> >>>>>>>>>>>> I'm trying to run the INT app from
>> >>>>>>>>>>>> https://github.com/p4lang/p4factory/tree/master/apps/int and
>> >>>>>>>>>>>> when running int_ref_topology.py, I have following errors.
>> >>>>>>>>>>>>
>> >>>>>>>>>>>> For installations of all the submodules (i.e., bm, p4c-bm,
>> >>>>>>>>>>>> switch), I followed the README files from their master
>> branches (when
>> >>>>>>>>>>>> configuring the switch, I added '--prefix=$HOME/install'
>> option as noted in
>> >>>>>>>>>>>> the readme file).
>> >>>>>>>>>>>>
>> >>>>>>>>>>>> hosung at hosung-VirtualBox:~/SUH/p4factory/mininet$ sudo
>> >>>>>>>>>>>> ./int_ref_topology.py --model-dir=$HOME/install
>> >>>>>>>>>>>> Adding switch spine1
>> >>>>>>>>>>>> Traceback (most recent call last):
>> >>>>>>>>>>>>   File "./int_ref_topology.py", line 131, in <module>
>> >>>>>>>>>>>>     run_cfg(model_dir)
>> >>>>>>>>>>>>   File "./int_ref_topology.py", line 91, in run_cfg
>> >>>>>>>>>>>>     net = mgr.setupAndStartNetwork()
>> >>>>>>>>>>>>   File "/home/hosung/SUH/p4factory/mininet/int_cfg.py", line
>> >>>>>>>>>>>> 140, in setupAndStartNetwork
>> >>>>>>>>>>>>     self.addSwitches()
>> >>>>>>>>>>>>   File "/home/hosung/SUH/p4factory/mininet/int_cfg.py", line
>> >>>>>>>>>>>> 177, in addSwitches
>> >>>>>>>>>>>>     pps = s.pps, qdepth = s.qdepth )
>> >>>>>>>>>>>>   File "build/bdist.linux-x86_64/egg/mininet/net.py", line
>> >>>>>>>>>>>> 240, in addSwitch
>> >>>>>>>>>>>>   File "/home/hosung/SUH/p4factory/mi
>> ninet/docker/p4model.py",
>> >>>>>>>>>>>> line 55, in __init__
>> >>>>>>>>>>>>     DockerSwitch.__init__( self, name, **kwargs )
>> >>>>>>>>>>>>   File "/home/hosung/SUH/p4factory/mi
>> ninet/docker/docker_node.py",
>> >>>>>>>>>>>> line 30, in __init__
>> >>>>>>>>>>>>     Node.__init__( self, name, **kwargs )
>> >>>>>>>>>>>>   File "build/bdist.linux-x86_64/egg/mininet/node.py", line
>> >>>>>>>>>>>> 106, in __init__
>> >>>>>>>>>>>>   File "/home/hosung/SUH/p4factory/mi
>> ninet/docker/docker_node.py",
>> >>>>>>>>>>>> line 119, in startShell
>> >>>>>>>>>>>>     self.pid = int(ps_out[0])
>> >>>>>>>>>>>> ValueError: invalid literal for int() with base 10:
>> "'16584'\n"
>> >>>>>>>>>>>>
>> >>>>>>>>>>>> Can someone help me with this problem?
>> >>>>>>>>>>>>
>> >>>>>>>>>>>> Thanks in advance.
>> >>>>>>>>>>>> Dongeun Suh.
>> >>>>>>>>>>>>
>> >>>>>>>>>>>> _______________________________________________
>> >>>>>>>>>>>> P4-dev mailing list
>> >>>>>>>>>>>> P4-dev at lists.p4.org
>> >>>>>>>>>>>> http://lists.p4.org/mailman/listinfo/p4-dev_lists.p4.org
>> >>>>>>>>>>>>
>> >>>>>>>>>>>
>> >>>>>>>>>>>
>> >>>>>>>>>>
>> >>>>>>>>>
>> >>>>>>>>
>> >>>>>>>
>> >>>>>>
>> >>>>>
>> >>>>
>> >>
>> >
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