Index: src/transport/gnunet-service-transport_neighbours.c
===================================================================
--- src/transport/gnunet-service-transport_neighbours.c	(revision 27335)
+++ src/transport/gnunet-service-transport_neighbours.c	(working copy)
@@ -65,7 +65,7 @@
  * send 3 keepalives in each interval, so 3 messages would need to be
  * lost in a row for a disconnect).
  */
-#define KEEPALIVE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 100)
+#define KEEPALIVE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 100)
 
 /**
  * How long are we willing to wait for a response from ATS before timing out?
Index: src/transport/gnunet-service-transport_validation.c
===================================================================
--- src/transport/gnunet-service-transport_validation.c	(revision 27335)
+++ src/transport/gnunet-service-transport_validation.c	(working copy)
@@ -42,7 +42,7 @@
  * OTOH, we don't want to spend too much time generating PONG signatures,
  * so they must have some lifetime to reduce our CPU usage.
  */
-#define PONG_SIGNATURE_LIFETIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 1)
+#define PONG_SIGNATURE_LIFETIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 12)
 
 /**
  * After how long do we expire an address in a HELLO that we just
@@ -57,24 +57,24 @@
  * we cannot validate (because after this time we can destroy the
  * validation record).
  */
-#define UNVALIDATED_PING_KEEPALIVE GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
+#define UNVALIDATED_PING_KEEPALIVE GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4)
 
 /**
  * How often do we PING an address that we have successfully validated
  * in the past but are not actively using?  Should be (significantly)
  * smaller than HELLO_ADDRESS_EXPIRATION.
  */
-#define VALIDATED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 15)
+#define VALIDATED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
 
 /**
  * How often do we PING an address that we are currently using?
  */
-#define CONNECTED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 2)
+#define CONNECTED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 2)
 
 /**
  * How much delay is acceptable for sending the PING or PONG?
  */
-#define ACCEPTABLE_PING_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
+#define ACCEPTABLE_PING_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 1)
 
 /**
  * Size of the validation map hashmap.
Index: src/include/gnunet_constants.h
===================================================================
--- src/include/gnunet_constants.h	(revision 27335)
+++ src/include/gnunet_constants.h	(working copy)
@@ -49,7 +49,7 @@
  * After how long do we consider a connection to a peer dead
  * if we don't receive messages from the peer?
  */
-#define GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
+#define GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 5)
 
 /**
  * How long do we delay reading more from a peer after a quota violation?
@@ -61,7 +61,7 @@
  * even if we assume that the service commonly does not
  * respond instantly (DNS, Database, etc.).
  */
-#define GNUNET_CONSTANTS_SERVICE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 10)
+#define GNUNET_CONSTANTS_SERVICE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 10)
 
 /**
  * How long do we delay messages to get larger packet sizes (CORKing)?