Hi Dave,
Actually while enabling my plugin on physical interface after spanning
traffic from physical interface to physical interface I could see the packets
on my plugin. But enabling my plugin on virtual interface after spanning
traffic from physical interface to virtual interface I couldn’t see packets on
my plugin.
If I tried to packet capture on virtual interface. Packet is landing on pcap.
Please clarify on query whether it’s possible to process the packet on virtual
interface.if it’s possible then after the span-input where packet will land.
Regarding clib_warning messages only printing on my plugin alone. For testing
purpose we add some more clib_warning on interface-output and dpdk-input. But
no luck no logs are printing.
Regards
Muthukumar S
________________________________
From: Dave Barach (dbarach) <dbar...@cisco.com>
Sent: Wednesday, November 20, 2019 8:41:20 PM
To: Muthukumar Sivaperumal <muthukumar.sivaperu...@veryxtech.com>;
vpp-dev@lists.fd.io <vpp-dev@lists.fd.io>
Subject: RE: [vpp-dev] VPP New plugin intergation
Does “show interface VirtualEthernet0/0/0 features” show your output feature?
You might try “trace add dpdk-input 10” and “show trace” to see what’s
happening to packet received on GigabitEthernet0/8/0.
The story about debug messages not appearing makes me wonder if you’re actually
running the code that you think you’re running.
Try running vpp manually: “.../build-root/build-vpp_debug_native/vpp unix
interactive” and see if your message appear. If not, work out what’s going on
before you do anything else...
HTH... Dave
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of
muthukumar.sivaperu...@veryxtech.com
Sent: Wednesday, November 20, 2019 9:04 AM
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] VPP New plugin intergation
Hi Team,
We are trying to implement a plugin to process all packets on virtual
interface.
We are doing span from physical interface to virtual interface on vpp,by
running plugin arc node with interface-output.
We are facing some problems.
Could you please help us to resolve the issue by giving your valuable
inputs/suggestions in this regard?.
Steps:
=====
1. Creating virtual interface
cmd: create vhost-user socket /var/run/vpp/vhost1.sock
2.Spanning packet received from physical interface to virtual interface
cmd: set interface span GigabitEthernet0/8/0 destination
VirtualEthernet0/0/0 both
3.Enable my plugin to process all packets on virtual interface.
cmd:myplugin enable-disable VirtualEthernet0/0/0
Problems:
========
1. Couldn't receive packets from virtual interface using myplugin(while
mirroring from physical interface).
2.For debugging in VPP nodes ,tried to add clib
messages(clib_warning,clib_unix_warning,clib_error,clib_unix_error) using
library but we couldn't get any debug message. Even we didn't get debug
messages from dpdk-input and ethernet-input nodes.
3. In general , in VPP , how to enable to debug each node ?
4. Any input /document related to virtual interface packet processing ?
VPP version:
==========
20.01-rc0~519-g669f4e341
Our plugin implementation:
=======================
[cid:image001.png@01D59F8A.D9171710]
Thank You very much in advance .
Awaiting for your reply as early as possible .
Thanks & Regards,
MuthuKumar S
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