diff --git a/BUILD.bazel b/BUILD.bazel
index a5a75c7462..ba817ae8f8 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -133,6 +133,7 @@ pkg_tar(
     srcs = [
         "//control/cmd/control",
         "//daemon/cmd/daemon",
+        "//dispatcher/cmd/dispatcher",
         "//gateway/cmd/gateway",
         "//router/cmd/router",
         "//scion-pki/cmd/scion-pki",
diff --git a/acceptance/common/topogen.bzl b/acceptance/common/topogen.bzl
index 5e77e86e73..7a98f953ac 100644
--- a/acceptance/common/topogen.bzl
+++ b/acceptance/common/topogen.bzl
@@ -110,6 +110,7 @@ def container_loaders(tester, gateway):
     images = {
         "control:latest": "//docker:control",
         "daemon:latest": "//docker:daemon",
+        "dispatcher:latest": "//docker:disptacher",
         "tester:latest": tester,
         "posix-router:latest": "//docker:posix_router",
     }
diff --git a/acceptance/sig_short_exp_time/docker-compose.yml b/acceptance/sig_short_exp_time/docker-compose.yml
index fedda02b3d..338d4a8255 100644
--- a/acceptance/sig_short_exp_time/docker-compose.yml
+++ b/acceptance/sig_short_exp_time/docker-compose.yml
@@ -42,6 +42,22 @@ services:
         ipv4_address: 242.254.100.4
       bridge2:
         ipv4_address: 242.254.200.4
+  dispatcher1:
+    container_name: dispatcher1
+    image: bazel/acceptance/sig_short_exp_time:dispatcher1
+    networks:
+      bridge1:
+        ipv4_address: 242.254.100.2
+    volumes:
+    - vol_scion_disp_sig1-ff00_0_110:/run/shm/dispatcher:rw
+  dispatcher2:
+    container_name: dispatcher2
+    image: bazel/acceptance/sig_short_exp_time:dispatcher2
+    networks:
+      bridge2:
+        ipv4_address: 242.254.200.2
+    volumes:
+    - vol_scion_disp_sig1-ff00_0_111:/run/shm/dispatcher:rw
   sig1:
     cap_add:
     - NET_ADMIN
diff --git a/acceptance/sig_short_exp_time/test b/acceptance/sig_short_exp_time/test
index e2988720c0..b1606260a1 100755
--- a/acceptance/sig_short_exp_time/test
+++ b/acceptance/sig_short_exp_time/test
@@ -10,7 +10,6 @@
 # short lifetime expires, the first path is taken down and a ping sent out. If
 # the failover was correct, this ping should not be lost.
 
-# TODO(JordiSubira): Remove dispatcher from schema.
 # Docker topology:
 #
 # +---------------------------+     +---------------------------+
@@ -51,10 +50,12 @@
 run_test() {(set -e
     # Register with the docker daemon the docker images bazel created
     docker image load -i acceptance/sig_short_exp_time/udpproxy.tar
+    docker image load -i acceptance/sig_short_exp_time/dispatcher1.tar
+    docker image load -i acceptance/sig_short_exp_time/dispatcher2.tar
     docker image load -i acceptance/sig_short_exp_time/sig1.tar
     docker image load -i acceptance/sig_short_exp_time/sig2.tar
 
-    docker-compose -f acceptance/sig_short_exp_time/docker-compose.yml up -d sig1 sig2 patha pathb
+    docker-compose -f acceptance/sig_short_exp_time/docker-compose.yml up -d dispatcher1 dispatcher2 sig1 sig2 patha pathb
 
     # Set up forward route on network stack 1 and 2 through the sig tunnel
     # device. The route is a property of the network stack, and persists after
@@ -102,7 +103,7 @@ RC=$?
 OUTPUT_DIR=$TEST_UNDECLARED_OUTPUTS_DIR
 mkdir -p $OUTPUT_DIR/logs
 
-for CNTR in sig1 sig2; do
+for CNTR in sig1 sig2 dispatcher1 dispatcher2; do
     docker-compose -f acceptance/sig_short_exp_time/docker-compose.yml logs "$CNTR" > "$OUTPUT_DIR/logs/$CNTR.log"
 done
 
diff --git a/acceptance/sig_short_exp_time/testdata/1-ff00_0_110/dispatcher/disp.toml b/acceptance/sig_short_exp_time/testdata/1-ff00_0_110/dispatcher/disp.toml
new file mode 100644
index 0000000000..6c11642ad6
--- /dev/null
+++ b/acceptance/sig_short_exp_time/testdata/1-ff00_0_110/dispatcher/disp.toml
@@ -0,0 +1,5 @@
+[dispatcher]
+id = "disp_1-ff00_0_110"
+
+[log.console]
+level = "debug"
\ No newline at end of file
diff --git a/acceptance/sig_short_exp_time/testdata/1-ff00_0_111/dispatcher/disp.toml b/acceptance/sig_short_exp_time/testdata/1-ff00_0_111/dispatcher/disp.toml
new file mode 100644
index 0000000000..9984dfec2a
--- /dev/null
+++ b/acceptance/sig_short_exp_time/testdata/1-ff00_0_111/dispatcher/disp.toml
@@ -0,0 +1,5 @@
+[dispatcher]
+id = "disp_1-ff00_0_111"
+
+[log.console]
+level = "debug"
\ No newline at end of file
diff --git a/acceptance/topo_cs_reload/BUILD.bazel b/acceptance/topo_cs_reload/BUILD.bazel
index 0327bf788c..303b533e98 100644
--- a/acceptance/topo_cs_reload/BUILD.bazel
+++ b/acceptance/topo_cs_reload/BUILD.bazel
@@ -14,6 +14,7 @@ go_test(
         "docker-compose.yml",
         "testdata/topology_reload.json",
         ":control.tar",
+        ":dispatcher.tar",
         ":invalid_changed_ip",
         ":invalid_changed_port",
         ":testdata/gen_crypto.sh",
@@ -55,6 +56,17 @@ container_image(
     ],
 )
 
+container_image(
+    name = "dispatcher",
+    base = "//docker:dispatcher",
+    cmd = [
+        "--config",
+        "/disp.toml",
+    ],
+    entrypoint = ["/app/dispatcher"],
+    files = ["testdata/disp.toml"],
+)
+
 genrule(
     name = "invalid_changed_ip",
     srcs = ["//acceptance/topo_common:topology"],
diff --git a/acceptance/topo_cs_reload/docker-compose.yml b/acceptance/topo_cs_reload/docker-compose.yml
index d2d4fac7d5..73ebc94b50 100644
--- a/acceptance/topo_cs_reload/docker-compose.yml
+++ b/acceptance/topo_cs_reload/docker-compose.yml
@@ -7,14 +7,20 @@ networks:
       config:
       - subnet: 242.253.100.0/24
 services:
+  topo_cs_reload_dispatcher:
+    container_name: topo_cs_reload_dispatcher
+    image: bazel/acceptance/topo_cs_reload:dispatcher
+    networks:
+      bridge1:
+        ipv4_address: 242.253.100.2
   topo_cs_reload_control_srv:
     container_name: topo_cs_reload_control_srv
     image: bazel/acceptance/topo_cs_reload:control
+    depends_on:
+      - topo_cs_reload_dispatcher
     volumes:
     - "${TOPO_CS_RELOAD_CONFIG_DIR}/certs:/certs:ro"
     - "${TOPO_CS_RELOAD_CONFIG_DIR}/keys:/keys:ro"
     - "${TOPO_CS_RELOAD_CONFIG_DIR}/crypto:/crypto:ro"
-    networks:
-      bridge1:
-        ipv4_address: 242.253.100.2
-version: '2.4'
+    network_mode: service:topo_cs_reload_dispatcher
+version: '2.4'
\ No newline at end of file
diff --git a/acceptance/topo_cs_reload/reload_test.go b/acceptance/topo_cs_reload/reload_test.go
index 85453b04f0..790f4a0120 100644
--- a/acceptance/topo_cs_reload/reload_test.go
+++ b/acceptance/topo_cs_reload/reload_test.go
@@ -105,6 +105,7 @@ func setupTest(t *testing.T) testState {
 	s.mustExec(t, "tar", "-xf", "crypto.tar", "-C", tmpDir)
 	// first load the docker images from bazel into the docker deamon, the
 	// tars are in the same folder as this test runs in bazel.
+	s.mustExec(t, "docker", "image", "load", "-i", "dispatcher.tar")
 	s.mustExec(t, "docker", "image", "load", "-i", "control.tar")
 	// now start the docker containers
 	s.mustExec(t, "docker-compose", "-f", "docker-compose.yml", "up", "-d")
@@ -123,6 +124,7 @@ func (s testState) teardownTest(t *testing.T) {
 	require.NoError(t, os.MkdirAll(fmt.Sprintf("%s/logs", outdir), os.ModePerm|os.ModeDir))
 	// collect logs
 	for service, file := range map[string]string{
+		"topo_cs_reload_dispatcher":  "disp.log",
 		"topo_cs_reload_control_srv": "control.log",
 	} {
 		cmd := exec.Command("docker-compose", "-f", "docker-compose.yml", "logs", "--no-color",
diff --git a/acceptance/topo_cs_reload/testdata/disp.toml b/acceptance/topo_cs_reload/testdata/disp.toml
new file mode 100644
index 0000000000..6c11642ad6
--- /dev/null
+++ b/acceptance/topo_cs_reload/testdata/disp.toml
@@ -0,0 +1,5 @@
+[dispatcher]
+id = "disp_1-ff00_0_110"
+
+[log.console]
+level = "debug"
\ No newline at end of file
diff --git a/acceptance/topo_daemon_reload/BUILD.bazel b/acceptance/topo_daemon_reload/BUILD.bazel
index 516d79224c..b777f9d14b 100644
--- a/acceptance/topo_daemon_reload/BUILD.bazel
+++ b/acceptance/topo_daemon_reload/BUILD.bazel
@@ -22,6 +22,17 @@ go_test(
     ],
 )
 
+container_image(
+    name = "dispatcher",
+    base = "//docker:dispatcher",
+    cmd = [
+        "--config",
+        "/disp.toml",
+    ],
+    entrypoint = ["/app/dispatcher"],
+    files = ["testdata/disp.toml"],
+)
+
 container_image(
     name = "daemon",
     base = "//docker:daemon",
diff --git a/acceptance/topo_daemon_reload/docker-compose.yml b/acceptance/topo_daemon_reload/docker-compose.yml
index 14074f14c3..5eb96b5034 100644
--- a/acceptance/topo_daemon_reload/docker-compose.yml
+++ b/acceptance/topo_daemon_reload/docker-compose.yml
@@ -7,14 +7,18 @@ networks:
       config:
       - subnet: 242.254.100.0/24
 services:
-  topo_daemon_reload_daemon:
-    container_name: topo_daemon_reload_daemon
-    image: bazel/acceptance/topo_daemon_reload:daemon
+  topo_daemon_reload_dispatcher:
+    container_name: topo_daemon_reload_dispatcher
+    image: bazel/acceptance/topo_daemon_reload:dispatcher
     networks:
       bridge1:
         ipv4_address: 242.254.100.2
+  topo_daemon_reload_daemon:
+    container_name: topo_daemon_reload_daemon
+    image: bazel/acceptance/topo_daemon_reload:daemon
     volumes:
     - vol_topo_daemon_reload_certs:/certs:ro
+    network_mode: service:topo_daemon_reload_dispatcher
 version: '2.4'
 volumes:
-  vol_topo_daemon_reload_certs: null
+  vol_topo_daemon_reload_certs: null
\ No newline at end of file
diff --git a/acceptance/topo_daemon_reload/reload_test.go b/acceptance/topo_daemon_reload/reload_test.go
index 9ee971b892..243cb133aa 100644
--- a/acceptance/topo_daemon_reload/reload_test.go
+++ b/acceptance/topo_daemon_reload/reload_test.go
@@ -68,10 +68,11 @@ func TestSDTopoReload(t *testing.T) {
 func setupTest(t *testing.T) {
 	// first load the docker images from bazel into the docker deamon, the
 	// tars are in the same folder as this test runs in bazel.
+	mustExec(t, "docker", "image", "load", "-i", "dispatcher.tar")
 	mustExec(t, "docker", "image", "load", "-i", "daemon.tar")
 	// now start the docker containers
 	mustExec(t, "docker-compose", "-f", "docker-compose.yml", "up",
-		"-d", "topo_daemon_reload_daemon")
+		"-d", "topo_daemon_reload_dispatcher", "topo_daemon_reload_daemon")
 	// wait a bit to make sure the containers are ready.
 	time.Sleep(time.Second / 2)
 	t.Log("Test setup done")
@@ -86,7 +87,8 @@ func teardownTest(t *testing.T) {
 	require.NoError(t, os.MkdirAll(fmt.Sprintf("%s/logs", outdir), os.ModePerm|os.ModeDir))
 	// collect logs
 	for service, file := range map[string]string{
-		"topo_daemon_reload_daemon": "daemon.log",
+		"topo_daemon_reload_dispatcher": "disp.log",
+		"topo_daemon_reload_daemon":     "daemon.log",
 	} {
 		cmd := exec.Command("docker-compose", "-f", "docker-compose.yml", "logs", "--no-color",
 			service)
diff --git a/acceptance/topo_daemon_reload/testdata/disp.toml b/acceptance/topo_daemon_reload/testdata/disp.toml
new file mode 100644
index 0000000000..6c11642ad6
--- /dev/null
+++ b/acceptance/topo_daemon_reload/testdata/disp.toml
@@ -0,0 +1,5 @@
+[dispatcher]
+id = "disp_1-ff00_0_110"
+
+[log.console]
+level = "debug"
\ No newline at end of file
diff --git a/dispatcher/dispatcher.go b/dispatcher/dispatcher.go
index c3c07a98ef..80a0578506 100644
--- a/dispatcher/dispatcher.go
+++ b/dispatcher/dispatcher.go
@@ -39,7 +39,6 @@ const (
 	ReceiveBufferSize = 1 << 20
 	// SendBufferSize is the size of the send buffers used by the dispatcher.
 	SendBufferSize = 1 << 20
-	mtu            = 1920 - 20 - 8
 )
 
 // Server is the main object allowing to create new SCION connections.
@@ -66,7 +65,7 @@ func NewServer(topo *topology.Loader, conn *net.UDPConn) *Server {
 	server := Server{
 		topo:      topo,
 		conn:      conn,
-		buf:       make([]byte, mtu),
+		buf:       make([]byte, common.SupportedMTU),
 		decoded:   make([]gopacket.LayerType, 4),
 		outBuffer: gopacket.NewSerializeBuffer(),
 		options: gopacket.SerializeOptions{
diff --git a/docker/BUILD.bazel b/docker/BUILD.bazel
index 3f01c7ef89..9744290598 100644
--- a/docker/BUILD.bazel
+++ b/docker/BUILD.bazel
@@ -7,6 +7,7 @@ container_bundle(
     images = {
         "control:latest": ":control",
         "daemon:latest": ":daemon",
+        "dispatcher:latest": ":dispatcher",
         "posix-gateway:latest": ":posix_gateway",
         "posix-router:latest": "posix_router",
     },
@@ -45,6 +46,16 @@ scion_app_images(
     entrypoint = ["/app/control"],
 )
 
+scion_app_images(
+    name = "dispatcher",
+    src = "//dispatcher/cmd/dispatcher",
+    cmd = [
+        "--config",
+        "/share/conf/disp.toml",
+    ],
+    entrypoint = ["/app/dispatcher"],
+)
+
 scion_app_images(
     name = "daemon",
     src = "//daemon/cmd/daemon",
diff --git a/spec/BUILD.bazel b/spec/BUILD.bazel
index 84016cd14d..49b6a8e3bf 100644
--- a/spec/BUILD.bazel
+++ b/spec/BUILD.bazel
@@ -27,6 +27,16 @@ openapi_bundle(
     visibility = ["//visibility:public"],
 )
 
+openapi_bundle(
+    name = "dispatcher",
+    srcs = [
+        "//spec/common:base.yml",
+        "//spec/common:process.yml",
+    ],
+    entrypoint = "//spec/dispatcher:spec.yml",
+    visibility = ["//visibility:public"],
+)
+
 openapi_bundle(
     name = "daemon",
     srcs = [