Hi Anurag, Inline.
> On Jan 19, 2021, at 11:54 PM, anurag.bhumc...@hotmail.com wrote: > > Hi All, > > I have few queries related to VPP Host TCP stack: > 1. Can we use only VPP TCP stack(L4 layer) only and disable L2/L3. If not > what is its advantage of TLDK or similar stacks. Not sure I follow the question. The whole point of having a host stack is to be able to terminate transport protocols (e.g., tcp, udp, tls, quic) within vpp, and to provide the result (i.e., byte streams or dgrams) to vpp internal or external applications. L2-L3 processing is offloaded to other vpp components (both ingress and egress). > 2. VPP TCP Stack does Batch process. Can VPP TCP Stack also do event based > processing? For internal applications, io/ctrl notifications are delivered via callback functions while for external applications, they are delivered via a shared memory infrastructure. If you’re interested in things like epoll, that latter can be “consumed" in a posix-like fashion using vcl (vppcoms library). More here[1]. Regards, Florin [1] https://wiki.fd.io/images/9/9c/Vpp-hoststack-kc-eu19.pdf <https://wiki.fd.io/images/9/9c/Vpp-hoststack-kc-eu19.pdf> > > Regards > Anurag > >
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