diff --git a/codes/model-net.h b/codes/model-net.h
index da36aa3ad24fe4d5da7a43341fe047964bdca975..5ad37b6f179953e10cd8ba320e0469644dd89e21 100644
--- a/codes/model-net.h
+++ b/codes/model-net.h
@@ -61,6 +61,7 @@ typedef struct mn_stats mn_stats;
     X(SIMPLEP2P, "modelnet_simplep2p", "simplep2p", &simplep2p_method)\
     X(TORUS,     "modelnet_torus",     "torus",     &torus_method)\
     X(SLIMFLY,   "modelnet_slimfly",   "slimfly",   &slimfly_method)\
+    X(FATTREE,   "modelnet_fattree",   "fattree",   &fattree_method)\
     X(DRAGONFLY, "modelnet_dragonfly", "dragonfly", &dragonfly_method)\
     X(DRAGONFLY_ROUTER, "modelnet_dragonfly_router", "dragonfly_router", &dragonfly_router_method)\
     X(LOGGP,     "modelnet_loggp",     "loggp",     &loggp_method)\
diff --git a/src/Makefile.subdir b/src/Makefile.subdir
index 4174681a66de634e77b4d48b11563b9c3ad8101d..818bdc811f2fe0829feb34ee619412d9e4ce4d43 100644
--- a/src/Makefile.subdir
+++ b/src/Makefile.subdir
@@ -25,6 +25,7 @@ EXTRA_DIST += src/iokernellang/codesparser.y.in \
 			  src/network-workloads/conf/allocation-random.conf \
 			  src/network-workloads/conf/modelnet-synthetic-dragonfly.conf \
 			  src/network-workloads/conf/modelnet-synthetic-slimfly-min.conf \
+			  src/network-workloads/conf/modelnet-synthetic-fattree.conf \
 			  src/networks/model-net/doc/README \
 			  src/networks/model-net/doc/README.dragonfly.txt \
 			  src/networks/model-net/doc/README.loggp.txt \
@@ -88,6 +89,7 @@ nobase_include_HEADERS = \
 	codes/model-net-inspect.h \
 	codes/net/dragonfly.h \
 	codes/net/slimfly.h \
+	codes/net/fattree.h \
 	codes/net/loggp.h \
 	codes/net/simplenet-upd.h \
 	codes/net/simplep2p.h \
@@ -148,6 +150,7 @@ src_libcodes_a_SOURCES =  \
 	src/networks/model-net/torus.c \
 	src/networks/model-net/dragonfly.c \
 	src/networks/model-net/slimfly.c \
+	src/networks/model-net/fattree.c \
 	src/networks/model-net/loggp.c \
 	src/networks/model-net/simplep2p.c \
 	src/networks/model-net/model-net-lp.c \
diff --git a/src/networks/model-net/model-net.c b/src/networks/model-net/model-net.c
index 472e9dc691d10a21c762aa58f3948c78a26c2de6..55d5e9c04a20327af433bb55d9f792802aae69bf 100644
--- a/src/networks/model-net/model-net.c
+++ b/src/networks/model-net/model-net.c
@@ -22,6 +22,7 @@ extern struct model_net_method simplep2p_method;
 extern struct model_net_method torus_method;
 extern struct model_net_method dragonfly_method;
 extern struct model_net_method slimfly_method;
+extern struct model_net_method fattree_method;
 extern struct model_net_method dragonfly_router_method;
 extern struct model_net_method loggp_method;