Thanks for the response.
I created a sub-interface on a physical interface and am trying to set the
interface state of that sub-interface as 'punt' . Its failing with a message :
vpp# set interface state TenGigabitEthernet3/0/0.1 punt
set interface state: super-interface TenGigabitEthernet3/0/0 must be down/punt
Question is, the physical interface must be 'down/punt' in order to
successfully set 'punt' on the corresponding sub-interface whose state would
eventually become 'down/punt' . Was wondering what's the real purpose of this
configuration ? If the physical interface is down it wouldn’t receive any
frames.
I am missing something here and trying to figure what that is.
-vijay
On 9/5/18, 5:34 PM, "Jim Thompson" <j...@netgate.com> wrote:
https://github.com/FDio/vpp/blob/master/src/vnet/ip/punt.c#L18-L22
@brief Local TCP/IP stack punt infrastructure.
Provides a set of VPP nodes together with the relevant APIs and CLI
commands in order to adjust and dispatch packets from the VPP data plane
to the local TCP/IP stack
> On Sep 6, 2018, at 1:19 AM, Chandra Mohan, Vijay Mohan
<vijch...@ciena.com> wrote:
>
> Did anyone get a chance to look at this ?
>
> -Vijay
>
> From: "Chandra Mohan, Vijay Mohan" <vijch...@ciena.com>
> Date: Tuesday, September 4, 2018 at 3:41 PM
> To: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
> Subject: What is 'punt' in 'set interface' command
>
> Hi,
>
> I am looking to understand when ‘punt’ option is used in “ set interface
state <interface> [up | down | punt | enable] “ . The command description says
that it is used to punt traffic to slow-path and not used for forwarding.
Looking to understand more about what this means. I am trying to explore if
there is a way by which control frames can be forwarded to CPU and was
wondering if ‘punt’ is that way to do this.
>
> Thanks,
> Vijay
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