Hi everyone,

I’m seeing a packet length issue after upgrading to *VPP 25.02* on *ARM64
(Ampere® Altra® Q64-30 @ 3.0GHz)* with an *Intel E810-C (4x ports)* NIC
using the *IAVF driver*.

All packets received in the *dpdk-input node* show a *length of 65535 bytes*,
which is clearly incorrect. This is visible in both *trace* and *pcap*
captures.

Here’s what I’ve observed so far:

   -

   The issue only appears with *VPP 25.02* on *ARM64*.
   -

   The *same platform (hardware + NIC)* works perfectly with *VPP 22.02* —
   packet lengths are reported correctly.
   -

   On *X86 *systems, *VPP 25.02* also works fine (no packet length issue).
   -

   So it seems specific to *VPP 25.02 + ARM64 + IAVF driver* combination.

*Setup details:*

   -

   *CPU:* Ampere® Altra® Q64-30 (ARM64)
   -

   *NIC:* Intel E810-C (4 ports)
   -

   *Driver:* IAVF (DPDK)
   -

   *VPP version:* 25.02
   -

   *Symptom:* All packets show length = 65535 in dpdk-input node

Has anyone else seen this behavior or is aware of any related changes in *VPP
25.02* or the *IAVF/DPDK layer* for ARM64?
Would appreciate any pointers, patches, or debug hints — especially if
someone has tested E810/IAVF on ARM with newer VPP versions.

Thanks a lot in advance!
*Nousi.*
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