diff --git a/dockers/docker-syncd-mlnx-rpc/Dockerfile b/dockers/docker-syncd-mlnx-rpc/Dockerfile
index 734171ffb3e0..c22145d1d69c 100644
--- a/dockers/docker-syncd-mlnx-rpc/Dockerfile
+++ b/dockers/docker-syncd-mlnx-rpc/Dockerfile
@@ -44,5 +44,6 @@ COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 COPY ptf_nn_agent.conf /etc/supervisor/conf.d/ptf_nn_agent.conf
 
 ENTRYPOINT service rsyslog start \
+    && sysctl -w net.core.rmem_max=509430500 \
     && service syncd start       \
     && /usr/bin/supervisord
diff --git a/dockers/docker-syncd-mlnx-rpc/ptf_nn_agent.conf b/dockers/docker-syncd-mlnx-rpc/ptf_nn_agent.conf
index b16159a996e8..fa1ed0eb1622 100644
--- a/dockers/docker-syncd-mlnx-rpc/ptf_nn_agent.conf
+++ b/dockers/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
+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
 process_name=ptf_nn_agent
 stdout_logfile=/tmp/ptf_nn_agent.out.log
 stderr_logfile=/tmp/ptf_nn_agent.err.log
diff --git a/dockers/docker-syncd-rpc/Dockerfile b/dockers/docker-syncd-rpc/Dockerfile
index 28108a82582c..214230491e34 100644
--- a/dockers/docker-syncd-rpc/Dockerfile
+++ b/dockers/docker-syncd-rpc/Dockerfile
@@ -44,5 +44,6 @@ COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 COPY ptf_nn_agent.conf /etc/supervisor/conf.d/ptf_nn_agent.conf
 
 ENTRYPOINT service rsyslog start \
+    && sysctl -w net.core.rmem_max=509430500 \
     && service syncd start       \
     && /usr/bin/supervisord
diff --git a/dockers/docker-syncd-rpc/ptf_nn_agent.conf b/dockers/docker-syncd-rpc/ptf_nn_agent.conf
index b16159a996e8..fa1ed0eb1622 100644
--- a/dockers/docker-syncd-rpc/ptf_nn_agent.conf
+++ b/dockers/docker-syncd-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
+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
 process_name=ptf_nn_agent
 stdout_logfile=/tmp/ptf_nn_agent.out.log
 stderr_logfile=/tmp/ptf_nn_agent.err.log