diff --git a/etc/infiniband.conf b/etc/infiniband.conf
index cc861e4e6..1ed4830e4 100644
--- a/etc/infiniband.conf
+++ b/etc/infiniband.conf
@@ -33,7 +33,6 @@ nodes = {
 
             vectorize = 1,
 
-            poll_mode = "BUSY",
             buffer_subtraction = 128,
         },
 
@@ -66,7 +65,6 @@ nodes = {
 
             vectorize = 1,
 
-            poll_mode = "BUSY",
             buffer_subtraction = 128,
 
             hooks = (
diff --git a/include/villas/nodes/infiniband.h b/include/villas/nodes/infiniband.h
index 3061cd727..969382a70 100644
--- a/include/villas/nodes/infiniband.h
+++ b/include/villas/nodes/infiniband.h
@@ -41,12 +41,6 @@
 #define META_GRH_SIZE META_SIZE + GRH_SIZE
 #define CHK_PER_ITER 2048
 
-/* Enums */
-enum poll_mode_e {
-	EVENT,
-	BUSY
-};
-
 struct infiniband {
 	/* IBV/RDMA CM structs */
 	struct context_s {
@@ -111,8 +105,6 @@ struct infiniband {
 	} conn;
 
 	/* Misc settings */
-	enum poll_mode_e poll_mode;
-
 	int is_source;
 };
 
diff --git a/lib/nodes/infiniband.c b/lib/nodes/infiniband.c
index 9c6633db0..70d277ba9 100644
--- a/lib/nodes/infiniband.c
+++ b/lib/nodes/infiniband.c
@@ -185,7 +185,6 @@ int ib_parse(struct node *n, json_t *cfg)
 	char *local = NULL;
 	char *remote = NULL;
 	const char *transport_mode = "RC";
-	const char *poll_mode = "BUSY";
 	int timeout = 1000;
 	int recv_cq_size = 128;
 	int send_cq_size = 128;
@@ -213,9 +212,8 @@ int ib_parse(struct node *n, json_t *cfg)
 
 
 	if (json_in) {
-		ret = json_unpack_ex(json_in, &err, 0, "{ s?: s, s?: s, s?: i, s?: i, s?: i, s?: i}",
+		ret = json_unpack_ex(json_in, &err, 0, "{ s?: s, s?: i, s?: i, s?: i, s?: i}",
 			"address", &local,
-			"poll_mode", &poll_mode,
 			"cq_size", &recv_cq_size,
 			"max_wrs", &max_recv_wr,
 			"vectorize", &vectorize_in,
@@ -303,17 +301,6 @@ int ib_parse(struct node *n, json_t *cfg)
 
 	debug(LOG_IB | 4, "Set  timeout to %i in node %s", timeout, node_name(n));
 
-	// Translate poll mode
-	if (strcmp(poll_mode, "EVENT") == 0)
-		ib->poll_mode = EVENT;
-	else if (strcmp(poll_mode, "BUSY") == 0)
-		ib->poll_mode = BUSY;
-	else
-		error("Failed to translate poll_mode in node %s. %s is not a valid \
-			poll mode!", node_name(n), poll_mode);
-
-	debug(LOG_IB | 4, "Set poll mode to %s in node %s", poll_mode, node_name(n));
-
 	// Set completion queue size
 	ib->recv_cq_size = recv_cq_size;
 	ib->send_cq_size = send_cq_size;
@@ -874,6 +861,8 @@ int ib_read(struct node *n, struct sample *smps[], unsigned cnt, unsigned *relea
 
 			smps[j]->length = SAMPLE_NUMBER_OF_VALUES(wc[j].byte_len - correction);
 			smps[j]->ts.received = ts_receive;
+
+			printf("time_ns: %lu\n", smps[j]->sequence);
 			smps[j]->flags = (SAMPLE_HAS_TS_ORIGIN | SAMPLE_HAS_TS_RECEIVED | SAMPLE_HAS_SEQUENCE);
 		}