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cwkim_261931's avatar
cwkim_261931
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Mar 09, 2017

Why set disabled pva-acceleration in that situation "Allowing asymmetrically routed connections across multiple VLANs"

I read K13558(Allowing asymmetrically routed connections across multiple VLANs) And I have one question about PVA

 

I understand that Document except for setting the PVA disabled

 

How is the PVA working on the multiple VLANs and I want to know the reason or mechanism about set the PVA disabled.

 

plz help me

 

1 Reply

  • Hi Cwkim,

    the

    Loose Initiation
    and
    Loose Close
    opotions are required for asymetric / n-path routing scenarios. Those settings are allowing your LTM to NOT require a full 3-way connection handshake / 4-way connection close handshake, to establish/close a TCP connection, which is required for asymetric routing scenarios, since in this case the LTM sees just the client originated traffic but not the traffic originated by your backend systems.

    Unfortuately those options are not compatible with the radically performance optimized but on the slightly limited functionalities of the PVA chips.

    Note: I can tell your if the same is also true for ePVA offloading. You may open a ticket with the support to clarify (and please inform us about the result)

    Cheers, Kai