diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
index 4d6ef6689b..1de46aaea4 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c
@@ -126,7 +126,12 @@ void schedule_nr_mib(module_id_t module_idP, frame_t frameP, sub_frame_t slotP,
               mib_sdu_length);
 
         if ((frameP & 1023) < 80){
-          LOG_I(MAC,"[gNB %d] Frame %d : MIB->BCH  CC_id %d, Received %d bytes\n",module_idP, frameP, CC_id, mib_sdu_length);
+          LOG_D(MAC,
+                "[gNB %d] Frame %d : MIB->BCH  CC_id %d, Received %d bytes\n",
+                module_idP,
+                frameP,
+                CC_id,
+                mib_sdu_length);
         }
 
         dl_config_pdu = &dl_req->dl_tti_pdu_list[dl_req->nPDUs];
diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
index b87f61826a..cf5c4a1efc 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
@@ -287,7 +287,7 @@ void nr_process_mac_pdu(
             break;
 
         default:
-          LOG_E(MAC, "Received unknown MAC header (LCID = 0x%02x)\n", rx_lcid);
+          LOG_D(MAC, "Received unknown MAC header (LCID = 0x%02x)\n", rx_lcid);
           return;
           break;
         }
diff --git a/openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c b/openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c
index 0e6fd614a0..6195a91ea2 100644
--- a/openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c
+++ b/openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c
@@ -220,7 +220,7 @@ static void *enb_tun_read_thread(void *_)
       exit(1);
     }
 
-printf("\n\n\n########## nas_sock_fd read returns len %d\n", len);
+    LOG_D(PDCP, "%s(): nas_sock_fd read returns len %d\n", __func__, len);
 
     nr_pdcp_manager_lock(nr_pdcp_ue_manager);
     rnti = nr_pdcp_get_first_rnti(nr_pdcp_ue_manager);
@@ -264,7 +264,7 @@ static void *ue_tun_read_thread(void *_)
       exit(1);
     }
 
-printf("\n\n\n########## nas_sock_fd read returns len %d\n", len);
+    LOG_D(PDCP, "%s(): nas_sock_fd read returns len %d\n", __func__, len);
 
     nr_pdcp_manager_lock(nr_pdcp_ue_manager);
     rnti = nr_pdcp_get_first_rnti(nr_pdcp_ue_manager);