diff --git a/platform/mellanox/docker-syncd-mlnx-rpc/ptf_nn_agent.conf b/platform/mellanox/docker-syncd-mlnx-rpc/ptf_nn_agent.conf
index fa1ed0eb1622..cd6a7d4db75d 100644
--- a/platform/mellanox/docker-syncd-mlnx-rpc/ptf_nn_agent.conf
+++ b/platform/mellanox/docker-syncd-mlnx-rpc/ptf_nn_agent.conf
@@ -1,5 +1,5 @@
 [program:ptf_nn_agent]
-command=/usr/bin/python /opt/ptf_nn_agent.py --device-socket 1@tcp://0.0.0.0:10900 -i 1-3@Ethernet12 --set-iface-rcv-buffer=109430400
+command=/usr/bin/python /opt/ptf_nn_agent.py --device-socket 1@tcp://0.0.0.0:10900 -i 1-3@Ethernet12 --set-nn-rcv-buffer=109430400 --set-iface-rcv-buffer=109430400 --set-nn-snd-buffer=109430400 --set-iface-snd-buffer=109430400
 process_name=ptf_nn_agent
 stdout_logfile=/tmp/ptf_nn_agent.out.log
 stderr_logfile=/tmp/ptf_nn_agent.err.log