diff --git a/tests/gb/bssgp_fc_tests.err b/tests/gb/bssgp_fc_tests.err
new file mode 100644
index 0000000..0a074f1
--- /dev/null
+++ b/tests/gb/bssgp_fc_tests.err
@@ -0,0 +1,51 @@
+<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:697 Single PDU (size=1000) is larger than maximum bucket size (100)!
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m<0000> gprs_bssgp.c:554 BSSGP-FC: fc_timer_cb() but still not able to send PDU of 10 bytes
+[0;m
\ No newline at end of file
diff --git a/tests/gb/bssgp_fc_tests.ok b/tests/gb/bssgp_fc_tests.ok
new file mode 100644
index 0000000..fda96f3
--- /dev/null
+++ b/tests/gb/bssgp_fc_tests.ok
@@ -0,0 +1,150 @@
+===== BSSGP flow-control test START
+size-max=100 oct, leak-rate=100 oct/s, queue-len=5 msgs, pdu_len=10 oct, pdu_cnt=20
+
+0: FC IN Nr 1
+0: FC OUT Nr 1
+0: FC IN Nr 2
+0: FC OUT Nr 2
+0: FC IN Nr 3
+0: FC OUT Nr 3
+0: FC IN Nr 4
+0: FC OUT Nr 4
+0: FC IN Nr 5
+0: FC OUT Nr 5
+0: FC IN Nr 6
+0: FC OUT Nr 6
+0: FC IN Nr 7
+0: FC OUT Nr 7
+0: FC IN Nr 8
+0: FC OUT Nr 8
+0: FC IN Nr 9
+0: FC OUT Nr 9
+0: FC IN Nr 10
+0: FC OUT Nr 10
+0: FC IN Nr 11
+0: FC IN Nr 12
+0: FC IN Nr 13
+0: FC IN Nr 14
+0: FC IN Nr 15
+0: FC IN Nr 16
+0: FC IN Nr 17
+0: FC IN Nr 18
+0: FC IN Nr 19
+0: FC IN Nr 20
+10: FC OUT Nr 11
+20: FC OUT Nr 12
+30: FC OUT Nr 13
+40: FC OUT Nr 14
+50: FC OUT Nr 15
+===== BSSGP flow-control test END
+
+===== BSSGP flow-control test START
+size-max=100 oct, leak-rate=100 oct/s, queue-len=100 msgs, pdu_len=10 oct, pdu_cnt=20
+
+0: FC IN Nr 1
+0: FC OUT Nr 1
+0: FC IN Nr 2
+0: FC OUT Nr 2
+0: FC IN Nr 3
+0: FC OUT Nr 3
+0: FC IN Nr 4
+0: FC OUT Nr 4
+0: FC IN Nr 5
+0: FC OUT Nr 5
+0: FC IN Nr 6
+0: FC OUT Nr 6
+0: FC IN Nr 7
+0: FC OUT Nr 7
+0: FC IN Nr 8
+0: FC OUT Nr 8
+0: FC IN Nr 9
+0: FC OUT Nr 9
+0: FC IN Nr 10
+0: FC OUT Nr 10
+0: FC IN Nr 11
+0: FC IN Nr 12
+0: FC IN Nr 13
+0: FC IN Nr 14
+0: FC IN Nr 15
+0: FC IN Nr 16
+0: FC IN Nr 17
+0: FC IN Nr 18
+0: FC IN Nr 19
+0: FC IN Nr 20
+10: FC OUT Nr 11
+20: FC OUT Nr 12
+30: FC OUT Nr 13
+40: FC OUT Nr 14
+50: FC OUT Nr 15
+60: FC OUT Nr 16
+70: FC OUT Nr 17
+80: FC OUT Nr 18
+90: FC OUT Nr 19
+100: FC OUT Nr 20
+===== BSSGP flow-control test END
+
+===== BSSGP flow-control test START
+size-max=100 oct, leak-rate=100 oct/s, queue-len=5 msgs, pdu_len=1000 oct, pdu_cnt=20
+
+0: FC IN Nr 1
+0: FC IN Nr 2
+0: FC IN Nr 3
+0: FC IN Nr 4
+0: FC IN Nr 5
+0: FC IN Nr 6
+0: FC IN Nr 7
+0: FC IN Nr 8
+0: FC IN Nr 9
+0: FC IN Nr 10
+0: FC IN Nr 11
+0: FC IN Nr 12
+0: FC IN Nr 13
+0: FC IN Nr 14
+0: FC IN Nr 15
+0: FC IN Nr 16
+0: FC IN Nr 17
+0: FC IN Nr 18
+0: FC IN Nr 19
+0: FC IN Nr 20
+===== BSSGP flow-control test END
+
+===== BSSGP flow-control test START
+size-max=100 oct, leak-rate=100 oct/s, queue-len=5 msgs, pdu_len=10 oct, pdu_cnt=20
+
+0: FC IN Nr 1
+0: FC OUT Nr 1
+0: FC IN Nr 2
+0: FC OUT Nr 2
+0: FC IN Nr 3
+0: FC OUT Nr 3
+0: FC IN Nr 4
+0: FC OUT Nr 4
+0: FC IN Nr 5
+0: FC OUT Nr 5
+0: FC IN Nr 6
+0: FC OUT Nr 6
+0: FC IN Nr 7
+0: FC OUT Nr 7
+0: FC IN Nr 8
+0: FC OUT Nr 8
+0: FC IN Nr 9
+0: FC OUT Nr 9
+0: FC IN Nr 10
+0: FC OUT Nr 10
+0: FC IN Nr 11
+0: FC IN Nr 12
+0: FC IN Nr 13
+0: FC IN Nr 14
+0: FC IN Nr 15
+0: FC IN Nr 16
+0: FC IN Nr 17
+0: FC IN Nr 18
+0: FC IN Nr 19
+0: FC IN Nr 20
+10: FC OUT Nr 11
+20: FC OUT Nr 12
+30: FC OUT Nr 13
+40: FC OUT Nr 14
+50: FC OUT Nr 15
+===== BSSGP flow-control test END
+
diff --git a/tests/gb/bssgp_fc_tests.sh b/tests/gb/bssgp_fc_tests.sh
new file mode 100755
index 0000000..38659bb
--- /dev/null
+++ b/tests/gb/bssgp_fc_tests.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+T=$1/bssgp_fc_test
+
+# default test (1 second, insufficient queue depth)
+$T
+
+# default test (1 second, sufficient queue depth)
+$T -d 100
+
+# test with PDU too large for bucket max
+$T -l 1000
+
+# test with 100 byte PDUs (10 second)
+$T -s 100
+
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 2154269..dd22c32 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -9,6 +9,13 @@
 AT_CHECK([$abs_top_builddir/tests/a5/a5_test], [], [expout])
 AT_CLEANUP
 
+AT_SETUP([bssgp-fc])
+AT_KEYWORDS([bssgp-fc])
+cat $abs_srcdir/gb/bssgp_fc_tests.ok > expout
+cat $abs_srcdir/gb/bssgp_fc_tests.err > experr
+AT_CHECK([$abs_top_builddir/tests/gb/bssgp_fc_tests.sh $abs_top_builddir/tests/gb], [], [expout], [experr])
+AT_CLEANUP
+
 AT_SETUP([bits])
 AT_KEYWORDS([bits])
 cat $abs_srcdir/bits/bitrev_test.ok > expout