I use vpp 20.05 and dpdk 20.02 on aarch64 architecture cpu server, and do a pressure test by using iperf3, the traffic is over 300MB. 
The problem I currently have is:     
(1) when I enable NAT feature, vpp crashes quickly, which runs fine in x86 architecture cpu.
(2)when I only using bond and policy routing, vpp runs fine.
(3) I also tried vpp version 2101, the same problem occurs. But in version vpp 2202, the problem not exists anymore.
 
 I think this crash is related to ARM or multi-thread or both of them