Shiv, To clarify, the stack has no name per se. We just refer to the transport and session layers part of vnet as “vpp’s host stack”. On top of the the session layer we run VCL, a wrapper library that offers more posix-like APIs for app's consumption as opposed to the raw, vpp specific, APIs the session layer offers. As transport protocols, we now support TCP and UDP and there’s ongoing work from Marco to implement SCTP.
Furthermore, the TCP/UDP implementation from vnet are completely independent from TLDK. The two were developed in parallel but unfortunately I can’t speak to the differences between them since I’m only familiar with the code part of vnet. Regards, Florin > On Dec 21, 2017, at 3:52 AM, Shiv Dev <[email protected]> wrote: > > Why would the TLDK be needed if the VCL is already available ? Are there any > improvements (perf / features) in TLDK ? > > Also, which release is TLDK is targeted for ? > > Regards, > Shiv > > On Thu, Dec 21, 2017 at 1:04 PM, Pierre Pfister (ppfister) > <[email protected] <mailto:[email protected]>> wrote: > Hello, > > VPP's user-space TCP stack is called VCL (VPP Communication Library). > https://wiki.fd.io/view/VPP/VPPCommunicationsLibrary > <https://wiki.fd.io/view/VPP/VPPCommunicationsLibrary> > > - Pierre > > >> Le 21 déc. 2017 à 07:19, satish karunanithi <[email protected] >> <mailto:[email protected]>> a écrit : >> >> Hi, >> >> I see there is a tcp module under vnet which does all the tcp stuffs syn/syn >> ack/windowing etc.. >> May i know why you feel this cannot be used as user mode TCP stack? Am i >> missing something here? >> >> Thanks & Regards, >> Satish. >> >> >> On Thu, Dec 21, 2017 at 10:32 AM, Jim Thompson <[email protected] >> <mailto:[email protected]>> wrote: >> >> >> On Dec 20, 2017, at 10:21 PM, Shiv Dev <[email protected] >> <mailto:[email protected]>> wrote: >> >>> Hi VPP Team, >>> >>> Is there a user mode TCP stack available as part of VPP ? >> >> https://gerrit.fd.io/r/gitweb?p=tldk.git;a=summary >> <https://gerrit.fd.io/r/gitweb?p=tldk.git;a=summary> >> >> “The TLDK (Transport Layer Development Kit) project will implement a set of >> libraries for L4 protocol processing (UDP, TCP etc.) and VPP graph nodes, >> plugins, etc using those libraries to implement a host stack.” >> >>> I did see somewhere that there is no user mode stack available as part >>> of VPP, and some folks use mTCP.. >> >> No idea. See above. There was also some work to bolt in libuinet via >> netmap. >> >> Jim >> >> _______________________________________________ >> vpp-dev mailing list >> [email protected] <mailto:[email protected]> >> https://lists.fd.io/mailman/listinfo/vpp-dev >> <https://lists.fd.io/mailman/listinfo/vpp-dev> >> >> _______________________________________________ >> vpp-dev mailing list >> [email protected] <mailto:[email protected]> >> https://lists.fd.io/mailman/listinfo/vpp-dev >> <https://lists.fd.io/mailman/listinfo/vpp-dev> > > _______________________________________________ > vpp-dev mailing list > [email protected] <mailto:[email protected]> > https://lists.fd.io/mailman/listinfo/vpp-dev > <https://lists.fd.io/mailman/listinfo/vpp-dev> > > _______________________________________________ > vpp-dev mailing list > [email protected] > https://lists.fd.io/mailman/listinfo/vpp-dev
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