Hello All, Could somebody kindly point out what can cause "Tx packet drops (dpdk tx failure)" errors and packet drops? Was this observed by anybody and any solution was adopted in the latest VPP versions? Kindly help as we are unable to figure out the reason for such drops.
Thanks in advance. Regards, Girish On Wed, Feb 23, 2022 at 7:40 PM Girish NL via lists.fd.io <nlgirish= gmail....@lists.fd.io> wrote: > Hi, > > We are using VPP for one of our products where we have used below VPP and > DPDK versions for achieving packet flow between a router and this > product/Network entity. > > VPP-18.07 > DPDK 19.11.2 > > The packet flow is all fine for a few days/months and all of sudden we see > packets are unable to send out of this network element and below VPP > counter is getting incremented(full show error output is attached). > > 19672 EthernetSwitch2/0/0-tx Tx packet drops (dpdk > tx failure) > > Could you please share some inputs on why this error can come and packet > drops in VPP? We also see that the incoming traffic to this network > entity is fine. Only outgoing is affected and it recovers only if we reboot > the system. > > We are not testing any large traffic flow, but only nominal traffic of > about less than 1Gbps (supported is 10Gbps) is being tested. Please note > this issue is seen very rarely and we can't reproduce at ease or we just > have to wait for the system to come to this state. > > Regards, > Girish > > > > >
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