Hi Shankar, 

In startup.conf under tcp stanza, add no-csum-offload. 

Regards, 
Florin

> On Mar 23, 2022, at 6:59 AM, Shankar Raju <shankar.r...@nasdaq.com> wrote:
> 
> Hi Florin,
> 
> I'm running this experiment on AWS and its using ENA NICs. I ran vppctl show 
> error command and I did see errors because of bad checksums. Is there a way 
> to turn off tx and rx checksuming through vpp just like we do with ethtool ?
> 
> SERVER SIDE:
> vppctl show errors
>    Count                  Node                              Reason            
>    Severity
>          1             dpdk-input                          no error           
>      error
>          4             arp-reply                       ARP replies sent       
>      error
>         17           session-queue                   Packets transmitted      
>      info
>          2            tcp4-listen                       SYNs received         
>      info
>          4          tcp4-rcv-process                  Pure ACKs received      
>      info
>          2          tcp4-rcv-process                    FINs received         
>      info
>          6          tcp4-established             Packets pushed into rx fifo  
>      info
>          6          tcp4-established                  Pure ACKs received      
>      info
>         19            tcp4-output                        Packets sent         
>      info
>          1             ip4-glean                      ARP requests sent       
>      error
>          9             ip4-local                       bad tcp checksum       
>      error
> 
> 
> 

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