diff --git a/core/net/ipv6/multicast/esmrf.c b/core/net/ipv6/multicast/esmrf.c
index 54a18ebb0..d0cf18e09 100644
--- a/core/net/ipv6/multicast/esmrf.c
+++ b/core/net/ipv6/multicast/esmrf.c
@@ -82,7 +82,7 @@ static struct esmrf_stats stats;
 /* Macros */
 /*---------------------------------------------------------------------------*/
 /* CCI */
-#define ESMRF_FWD_DELAY()  NETSTACK_RDC.channel_check_interval()
+#define ESMRF_FWD_DELAY()  (CLOCK_SECOND / 8)
 /* Number of slots in the next 500ms */
 #define ESMRF_INTERVAL_COUNT  ((CLOCK_SECOND >> 2) / fwd_delay)
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/ipv6/multicast/smrf.c b/core/net/ipv6/multicast/smrf.c
index 5f954dcfb..d99f5464c 100644
--- a/core/net/ipv6/multicast/smrf.c
+++ b/core/net/ipv6/multicast/smrf.c
@@ -59,7 +59,7 @@
 /* Macros */
 /*---------------------------------------------------------------------------*/
 /* CCI */
-#define SMRF_FWD_DELAY()  NETSTACK_RDC.channel_check_interval()
+#define SMRF_FWD_DELAY()  (CLOCK_SECOND / 8)
 /* Number of slots in the next 500ms */
 #define SMRF_INTERVAL_COUNT  ((CLOCK_SECOND >> 2) / fwd_delay)
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/mac/csma.c b/core/net/mac/csma.c
index f6238b2bb..df5bed51c 100644
--- a/core/net/mac/csma.c
+++ b/core/net/mac/csma.c
@@ -149,18 +149,9 @@ neighbor_queue_from_addr(const linkaddr_t *addr)
 static clock_time_t
 backoff_period(void)
 {
-  clock_time_t time;
-  /* The retransmission time must be proportional to the channel
-     check interval of the underlying radio duty cycling layer. */
-  time = NETSTACK_RDC.channel_check_interval();
-
-  /* If the radio duty cycle has no channel check interval, we use
-   * the default in IEEE 802.15.4: aUnitBackoffPeriod which is
+  /* Use the default in IEEE 802.15.4: aUnitBackoffPeriod which is
    * 20 symbols i.e. 320 usec. That is, 1/3125 second. */
-  if(time == 0) {
-    time = MAX(CLOCK_SECOND / 3125, 1);
-  }
-  return time;
+  return MAX(CLOCK_SECOND / 3125, 1);
 }
 /*---------------------------------------------------------------------------*/
 static void
@@ -465,15 +456,6 @@ off(int keep_radio_on)
   return NETSTACK_RDC.off(keep_radio_on);
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  if(NETSTACK_RDC.channel_check_interval) {
-    return NETSTACK_RDC.channel_check_interval();
-  }
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 static void
 init(void)
 {
@@ -488,7 +470,6 @@ const struct mac_driver csma_driver = {
   send_packet,
   input_packet,
   on,
-  off,
-  channel_check_interval,
+  off
 };
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/mac/mac.h b/core/net/mac/mac.h
index 8ab55bddd..a405b5ee1 100644
--- a/core/net/mac/mac.h
+++ b/core/net/mac/mac.h
@@ -68,9 +68,6 @@ struct mac_driver {
 
   /** Turn the MAC layer off. */
   int (* off)(int keep_radio_on);
-
-  /** Returns the channel check interval, expressed in clock_time_t ticks. */
-  unsigned short (* channel_check_interval)(void);
 };
 
 /* Generic MAC return values. */
diff --git a/core/net/mac/nordc.c b/core/net/mac/nordc.c
index bb41335ff..224d4943f 100644
--- a/core/net/mac/nordc.c
+++ b/core/net/mac/nordc.c
@@ -70,12 +70,6 @@ off(int keep_radio_on)
   return 0;
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 static void
 init(void)
 {
@@ -88,7 +82,6 @@ const struct rdc_driver nordc_driver = {
   send_list,
   packet_input,
   on,
-  off,
-  channel_check_interval,
+  off
 };
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/mac/nullmac.c b/core/net/mac/nullmac.c
index ae0d48ee1..bf0b5cb16 100644
--- a/core/net/mac/nullmac.c
+++ b/core/net/mac/nullmac.c
@@ -67,12 +67,6 @@ off(int keep_radio_on)
   return 0;
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 static void
 init(void)
 {
@@ -84,7 +78,6 @@ const struct mac_driver nullmac_driver = {
   send_packet,
   packet_input,
   on,
-  off,
-  channel_check_interval,
+  off
 };
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/mac/nullrdc.c b/core/net/mac/nullrdc.c
index 56c524000..d17067d99 100644
--- a/core/net/mac/nullrdc.c
+++ b/core/net/mac/nullrdc.c
@@ -342,12 +342,6 @@ off(int keep_radio_on)
   }
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 static void
 init(void)
 {
@@ -361,7 +355,6 @@ const struct rdc_driver nullrdc_driver = {
   send_list,
   packet_input,
   on,
-  off,
-  channel_check_interval,
+  off
 };
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/mac/rdc.h b/core/net/mac/rdc.h
index 9b4569158..0474a6cab 100644
--- a/core/net/mac/rdc.h
+++ b/core/net/mac/rdc.h
@@ -85,9 +85,6 @@ struct rdc_driver {
 
   /** Turn the MAC layer off. */
   int (* off)(int keep_radio_on);
-
-  /** Returns the channel check interval, expressed in clock_time_t ticks. */
-  unsigned short (* channel_check_interval)(void);
 };
 
 #endif /* RDC_H_ */
diff --git a/core/net/mac/tsch/tsch.c b/core/net/mac/tsch/tsch.c
index b1a2776b1..2863b2a54 100644
--- a/core/net/mac/tsch/tsch.c
+++ b/core/net/mac/tsch/tsch.c
@@ -1011,19 +1011,12 @@ turn_off(int keep_radio_on)
   return 1;
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 const struct mac_driver tschmac_driver = {
   "TSCH",
   tsch_init,
   send_packet,
   packet_input,
   turn_on,
-  turn_off,
-  channel_check_interval,
+  turn_off
 };
 /*---------------------------------------------------------------------------*/
diff --git a/drivers/cpu/nrf52832/ble/ble-mac.c b/drivers/cpu/nrf52832/ble/ble-mac.c
index 87f68fa46..9ef90e8b3 100644
--- a/drivers/cpu/nrf52832/ble/ble-mac.c
+++ b/drivers/cpu/nrf52832/ble/ble-mac.c
@@ -347,12 +347,6 @@ off(int keep_radio_on)
   return 1;
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 static void
 init(void)
 {
@@ -377,8 +371,7 @@ const struct mac_driver ble_ipsp_mac_driver = {
   send_packet,
   NULL,
   on,
-  off,
-  channel_check_interval,
+  off
 };
 /*---------------------------------------------------------------------------*/
 /**
diff --git a/drivers/platform/cooja-ip64/contiki-cooja-ip64-main.c b/drivers/platform/cooja-ip64/contiki-cooja-ip64-main.c
index 3e66ef179..797642211 100644
--- a/drivers/platform/cooja-ip64/contiki-cooja-ip64-main.c
+++ b/drivers/platform/cooja-ip64/contiki-cooja-ip64-main.c
@@ -189,10 +189,8 @@ contiki_init(void)
 
   /* Initialize communication stack */
   netstack_init();
-  printf("%s/%s/%s, channel check rate %lu Hz\n",
-         NETSTACK_NETWORK.name, NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1:
-                         NETSTACK_RDC.channel_check_interval()));
+  printf("%s/%s/%s\n",
+         NETSTACK_NETWORK.name, NETSTACK_MAC.name, NETSTACK_RDC.name);
 
   /* IPv6 CONFIGURATION */
 
diff --git a/drivers/platform/cooja/contiki-cooja-main.c b/drivers/platform/cooja/contiki-cooja-main.c
index c2e7757a1..0117f6840 100644
--- a/drivers/platform/cooja/contiki-cooja-main.c
+++ b/drivers/platform/cooja/contiki-cooja-main.c
@@ -240,10 +240,8 @@ contiki_init()
 
   /* Initialize communication stack */
   netstack_init();
-  printf("%s/%s/%s, channel check rate %lu Hz\n",
-         NETSTACK_NETWORK.name, NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1:
-                         NETSTACK_RDC.channel_check_interval()));
+  printf("%s/%s/%s\n",
+         NETSTACK_NETWORK.name, NETSTACK_MAC.name, NETSTACK_RDC.name);
 
 #if NETSTACK_CONF_WITH_IPV4
   /* IPv4 CONFIGURATION */
diff --git a/drivers/platform/sky/contiki-sky-main.c b/drivers/platform/sky/contiki-sky-main.c
index 2bc75e5b9..890a2c13d 100644
--- a/drivers/platform/sky/contiki-sky-main.c
+++ b/drivers/platform/sky/contiki-sky-main.c
@@ -302,10 +302,8 @@ main(int argc, char **argv)
   NETSTACK_MAC.init();
   NETSTACK_NETWORK.init();
 
-  PRINTF("%s %s, channel check rate %lu Hz, radio channel %u, CCA threshold %i\n",
+  PRINTF("%s %s, radio channel %u, CCA threshold %i\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1:
-                         NETSTACK_RDC.channel_check_interval()),
          CC2420_CONF_CHANNEL,
          CC2420_CONF_CCA_THRESH);
 
@@ -345,10 +343,8 @@ main(int argc, char **argv)
   NETSTACK_MAC.init();
   NETSTACK_NETWORK.init();
 
-  PRINTF("%s %s, channel check rate %lu Hz, radio channel %u\n",
+  PRINTF("%s %s, radio channel %u\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0? 1:
-                         NETSTACK_RDC.channel_check_interval()),
          CC2420_CONF_CHANNEL);
 #endif /* NETSTACK_CONF_WITH_IPV6 */
 
diff --git a/drivers/platform/srf06-cc26xx/contiki-main.c b/drivers/platform/srf06-cc26xx/contiki-main.c
index bb9e50518..ee972db74 100644
--- a/drivers/platform/srf06-cc26xx/contiki-main.c
+++ b/drivers/platform/srf06-cc26xx/contiki-main.c
@@ -213,11 +213,6 @@ main(void)
   printf("%s\n", NETSTACK_MAC.name);
   printf(" RDC: ");
   printf("%s", NETSTACK_RDC.name);
-
-  if(NETSTACK_RDC.channel_check_interval() != 0) {
-    printf(", Channel Check Interval: %u ticks",
-           NETSTACK_RDC.channel_check_interval());
-  }
   printf("\n");
 
   netstack_init();
diff --git a/drivers/platform/wismote/contiki-wismote-main.c b/drivers/platform/wismote/contiki-wismote-main.c
index e8ef46617..254b23630 100644
--- a/drivers/platform/wismote/contiki-wismote-main.c
+++ b/drivers/platform/wismote/contiki-wismote-main.c
@@ -300,10 +300,8 @@ main(int argc, char **argv)
   NETSTACK_MAC.init();
   NETSTACK_NETWORK.init();
 
-  printf("%s %s, channel check rate %lu Hz, radio channel %u\n",
+  printf("%s %s, radio channel %u\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1:
-                         NETSTACK_RDC.channel_check_interval()),
          RF_CHANNEL);
 
   process_start(&tcpip_process, NULL);
@@ -341,10 +339,8 @@ main(int argc, char **argv)
   NETSTACK_MAC.init();
   NETSTACK_NETWORK.init();
 
-  printf("%s %s, channel check rate %lu Hz, radio channel %u\n",
+  printf("%s %s, radio channel %u\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0? 1:
-                         NETSTACK_RDC.channel_check_interval()),
          RF_CHANNEL);
 #endif /* NETSTACK_CONF_WITH_IPV6 */
 
diff --git a/drivers/platform/z1/contiki-z1-main.c b/drivers/platform/z1/contiki-z1-main.c
index 83e6a31b8..adbc99fad 100644
--- a/drivers/platform/z1/contiki-z1-main.c
+++ b/drivers/platform/z1/contiki-z1-main.c
@@ -319,10 +319,8 @@ main(int argc, char **argv)
   NETSTACK_MAC.init();
   NETSTACK_NETWORK.init();
 
-  printf("%s %s, channel check rate %lu Hz, radio channel %u\n",
+  printf("%s %s, radio channel %u\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1 :
-                         NETSTACK_RDC.channel_check_interval()),
          CC2420_CONF_CHANNEL);
 
   process_start(&tcpip_process, NULL);
@@ -360,10 +358,8 @@ main(int argc, char **argv)
   NETSTACK_MAC.init
   NETSTACK_NETWORK.init();
 
-  printf("%s %s, channel check rate %lu Hz, radio channel %u\n",
+  printf("%s %s, radio channel %u\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
-         CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1 :
-                         NETSTACK_RDC.channel_check_interval()),
          CC2420_CONF_CHANNEL);
 #endif /* NETSTACK_CONF_WITH_IPV6 */
 
diff --git a/examples/ipv6/native-border-router/border-router-rdc.c b/examples/ipv6/native-border-router/border-router-rdc.c
index 4aae30e5e..56301c7b1 100644
--- a/examples/ipv6/native-border-router/border-router-rdc.c
+++ b/examples/ipv6/native-border-router/border-router-rdc.c
@@ -170,12 +170,6 @@ off(int keep_radio_on)
   return 1;
 }
 /*---------------------------------------------------------------------------*/
-static unsigned short
-channel_check_interval(void)
-{
-  return 0;
-}
-/*---------------------------------------------------------------------------*/
 static void
 init(void)
 {
@@ -189,7 +183,6 @@ const struct rdc_driver border_router_rdc_driver = {
   send_list,
   packet_input,
   on,
-  off,
-  channel_check_interval,
+  off
 };
 /*---------------------------------------------------------------------------*/