Thank you..
In VPP, can we limit the packets across interface. If we can limit the packets
which all the API's are responsible please mention to me.
Thanks and regards,
Mahesh Mathad Monday, 05 June 2017, 11:26PM +05:30 from Dave Barach (dbarach)
dbar...@cisco.com :
>I stand corrected, at least in a general sense... ( )...
>
>Thanks… Dave
>
>From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On
>Behalf Of Damjan Marion
>Sent: Monday, June 5, 2017 1:34 PM
>To: Dave Wallace < dwallac...@gmail.com >
>Cc: Mahesh Ishwar Mathad < mi.mah...@globaledgesoft.com >; vpp-dev@lists.fd.io
>Subject: Re: [vpp-dev] Need some help on VPP
>
>
>Actually not :)
>
>We dropped dependency on dpdk ptype due to history of issues and lack of mpls
>ptype and we purely rely on ethertype.
>
>From the metadata only thing we use today is ip4 hdr checksum.
>
>On 5 Jun 2017, at 14:56, Dave Wallace < dwallac...@gmail.com > wrote:
>>To be pedantic, the VPP dpdk-input node checks the classification metadata
>>for each packet which was set by DPDK and decides whether to bypass the
>>ethernet-input node.
>>
>>Thanks,
>>-daw-
>>On 6/5/2017 3:23 AM, Nagaprabhanjan Bellari wrote:
>>>DPDK can be thought of as a device driver - there can be multiple device
>>>drivers - tap interface handler is also, technically, a device driver. So
>>>are the host-if, ssvm etc. etc. Their job is to collect packets
from their respective "media" (a physical interface for dpdk, kernel for tap,
shared memory for ssvm etc.) and hand them off to VPP.
>>>DPDK essentially collects the packets and feeds them to the VPP forwarding
>>>engine. VPP will then start parsing the packet. It so happens that DPDK does
>>>some optimization and directly feeds the packet to IP rather
than to the ethernet node in the graph (because Intel adapters can validate IP
checksum etc.). Without optimization (for other device drivers) the packets go
to ethernet input and gets processed from byte 0 of the packet.
>>>Hope this helps.
>>>Thanks,
>>>-nagp
>>>
>>>On Mon, Jun 5, 2017 at 11:59 AM, Mahesh Ishwar Mathad <
>>>mi.mah...@globaledgesoft.com > wrote:
>>>>Thanks for the great support.
>>>>
>>>>The VPP platform grabs all available packets from RX rings to form a
>>>>vector of packets. These vector of packets who will classify these
>>>>packets either DPDK or VPP ?. If it is VPP how VPP will classify packet
>>>>because what I am thinking for every packet VPP is decapsulating to know
>>>>which packet actually it is, that particular packet is sent to the
>>>>respected node. By this doing this mechanism VPP is simply wasting
>>>>machine cycle. If my thinking is worng, please tell me which algorithm
>>>>is this VPP is following so that i can understand.
>>>>
>>>>--
>>>>Thanks & Regards,
>>>>Mahesh Mathad.
>>>>
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