diff --git a/src/hooks/useDrawMiniMap.ts b/src/hooks/useDrawMiniMap.ts
index 3496659..3bba297 100644
--- a/src/hooks/useDrawMiniMap.ts
+++ b/src/hooks/useDrawMiniMap.ts
@@ -134,7 +134,11 @@ export function useDrawMiniMap(chartDom: HTMLElement) {
   }
   function drawMinimapTree() {
     for (const n of Network.Nodes.value) {
-      if (n.type==NETWORK_TYPE.TSCH && (<TSCHNodeMeta>n).joined && (<TSCHNodeMeta>n).parent != 0) {
+      if (
+        n.type == NETWORK_TYPE.TSCH &&
+        (<TSCHNodeMeta>n).joined &&
+        (<TSCHNodeMeta>n).parent != 0
+      ) {
         if (treeNodes[n.id] == undefined) {
           treeNodes[n.id] = { name: n.id, children: [] }
           if (treeNodes[(<TSCHNodeMeta>n).parent] != undefined) {
diff --git a/src/networks/5G/network.ts b/src/networks/5G/network.ts
index d9b3cc9..d23279a 100644
--- a/src/networks/5G/network.ts
+++ b/src/networks/5G/network.ts
@@ -1,8 +1,7 @@
 import { ref } from 'vue'
-import { LINK_TYPE, NETWORK_TYPE, NODE_TYPE } from '../common'
+import { Network, LINK_TYPE, NETWORK_TYPE, NODE_TYPE } from '../common'
 import type { ScheduleConfig, FiveGNodeMeta } from './typedefs'
-import { KDNode } from '../kdtree'
-import { Network } from '../network'
+import { KDNode } from '../../utils/kdtree'
 
 export class FiveGNetwork extends Network {
   constructor() {
@@ -25,18 +24,18 @@ export class FiveGNetwork extends Network {
         }
       }
     }
-    this.Nodes.value = [
-      <FiveGNodeMeta>{
-        id: 0,
-        type: NODE_TYPE.FIVE_G_BS,
-        pos: [0, 0],
-        neighbors: [],
-        queueLen: 0,
-        tx_cnt: 0,
-        rx_cnt: 0,
-        w: undefined
-      }
-    ]
+    const bs = <FiveGNodeMeta>{
+      id: 0,
+      type: NODE_TYPE.FIVE_G_BS,
+      pos: [0, 0],
+      neighbors: [],
+      queueLen: 0,
+      tx_cnt: 0,
+      rx_cnt: 0,
+      w: undefined
+    }
+    this.NetworkDevices.value.push(bs)
+    this.Nodes.value.push(bs)
 
     for (let i = 1; i <= this.TopoConfig.value.num_nodes; i++) {
       const n = <FiveGNodeMeta>{
@@ -121,6 +120,7 @@ export class FiveGNetwork extends Network {
       //   }
       // }
       this.Nodes.value.push(n)
+      this.NetworkDevices.value.push(n)
     }
   }
 }
diff --git a/src/networks/TSCH/network.ts b/src/networks/TSCH/network.ts
index 26bd0e6..12e8017 100644
--- a/src/networks/TSCH/network.ts
+++ b/src/networks/TSCH/network.ts
@@ -7,10 +7,9 @@ import type {
   ASSOC_RSP_PKT_PAYLOAD
 } from './typedefs'
 import { TSCH_PKT_TYPE, CELL_TYPES } from './typedefs'
-import { ADDR, MSG_TYPE, LINK_TYPE, NETWORK_TYPE, NODE_TYPE } from '../common'
+import { Network, ADDR, MSG_TYPE, LINK_TYPE, NETWORK_TYPE, NODE_TYPE } from '../common'
 import type { Packet, Message, ASN_MSG_PAYLOAD, MsgHandler } from '../common'
-import { KDNode } from '../kdtree'
-import { Network } from '../network'
+import { KDNode } from '../../utils/kdtree'
 
 export class TSCHNetwork extends Network {
   doneCnt = 0
@@ -35,7 +34,6 @@ export class TSCHNetwork extends Network {
     this.registerMsgHandler(MSG_TYPE.ASSOC_REQ, this.assocReqMsgHandler)
 
     this.createNodes()
-    super.createEndSystems()
     this.createSchedule()
 
     watch(this.ASN, () => {
@@ -117,8 +115,8 @@ export class TSCHNetwork extends Network {
   }
 
   createNodes = () => {
-    this.NetworkDevices = ref<TSCHNodeMeta[]>([])
-
+    this.NetworkDevices = ref<TSCHNodeMeta[]>([<TSCHNodeMeta>{}])
+    console.log(this.NetworkDevices.value[0].id == undefined)
     // clear old nodes
     if (this.NetworkDevices.value.length > 1) {
       for (const n of this.NetworkDevices.value) {
@@ -127,21 +125,6 @@ export class TSCHNetwork extends Network {
         }
       }
     }
-    this.NetworkDevices.value = [
-      <TSCHNodeMeta>{
-        id: 0,
-        type: NODE_TYPE.TSCH,
-        pos: [0, 0],
-        joined: false,
-        parent: 0,
-        neighbors: [],
-        queueLen: 0,
-        tx_cnt: 0,
-        rx_cnt: 0,
-        rank: 0,
-        w: undefined
-      }
-    ] // placeholder
 
     for (let i = 1; i <= this.TopoConfig.value.num_nodes; i++) {
       const n = <TSCHNodeMeta>{
@@ -164,6 +147,9 @@ export class TSCHNetwork extends Network {
       }
       this.KDTree.Insert(new KDNode(i, n.pos))
 
+      this.Nodes.value.push(n)
+      this.NetworkDevices.value.push(n)
+
       // send init msg
       n.w!.postMessage(<Message>{
         type: MSG_TYPE.INIT,
@@ -203,6 +189,7 @@ export class TSCHNetwork extends Network {
 
             if (pkt.mac_dst == ADDR.BROADCAST) {
               for (const nn of this.NetworkDevices.value) {
+                if (nn.id == undefined) continue
                 // check if in tx_range
                 const distance = Math.sqrt(
                   Math.pow(n.pos[0] - nn.pos[0], 2) + Math.pow(n.pos[1] - nn.pos[1], 2)
@@ -226,8 +213,6 @@ export class TSCHNetwork extends Network {
           }
         }
       }
-      this.Nodes.value.push(n)
-      this.NetworkDevices.value.push(n)
     }
   }
 
diff --git a/src/networks/es.ts b/src/networks/TSN/es.ts
similarity index 83%
rename from src/networks/es.ts
rename to src/networks/TSN/es.ts
index a8b358d..5690967 100644
--- a/src/networks/es.ts
+++ b/src/networks/TSN/es.ts
@@ -1,4 +1,5 @@
-import { MSG_TYPE, type Message, type MsgHandler, type Packet, type PktHandler } from './common'
+import { TSN_PKT_TYPE } from './typedefs'
+import { MSG_TYPE, type Message, type MsgHandler, type Packet, type PktHandler } from '../common'
 
 // end system, run as a webworker
 class EndSystem {
@@ -10,6 +11,9 @@ class EndSystem {
 
   constructor() {
     this.registerMsgHandler(MSG_TYPE.INIT, this.initMsgHandler)
+    this.registerMsgHandler(MSG_TYPE.FLOW, this.flowMsgHandler)
+
+    this.registerPktHandler(TSN_PKT_TYPE.DATA, this.dataPktHandler)
   }
 
   registerMsgHandler(type: number, handler: MsgHandler) {
@@ -46,7 +50,8 @@ class EndSystem {
     }
   }
   initMsgHandler = () => {}
-  dataMsgHandler = () => {}
+  flowMsgHandler = () => {}
+  dataPktHandler = () => {}
 }
 
 new EndSystem().run()
diff --git a/src/networks/TSN/network.ts b/src/networks/TSN/network.ts
index ce573c5..991f659 100644
--- a/src/networks/TSN/network.ts
+++ b/src/networks/TSN/network.ts
@@ -1,8 +1,17 @@
 import { ref, toRaw } from 'vue'
-import { NETWORK_TYPE, NODE_TYPE, type Message, LINK_TYPE, MSG_TYPE } from '../common'
+import {
+  Network,
+  NETWORK_TYPE,
+  NODE_TYPE,
+  type Message,
+  LINK_TYPE,
+  MSG_TYPE,
+  type NodeMeta,
+  type INIT_MSG_PAYLOAD,
+  type Packet
+} from '../common'
 import { type ScheduleConfig, type TSNNodeMeta, type TSN_INIT_MSG_PAYLOAD } from './typedefs'
-import { KDNode } from '../kdtree'
-import { Network } from '../network'
+import { KDNode } from '../../utils/kdtree'
 
 export class TSNNetwork extends Network {
   InPorts: any
@@ -16,7 +25,7 @@ export class TSNNetwork extends Network {
       num_slots: 40
     })
     this.createNodes()
-    super.createEndSystems()
+    this.createEndSystems()
   }
   createNodes = () => {
     this.NetworkDevices = ref<TSNNodeMeta[]>([])
@@ -84,4 +93,58 @@ export class TSNNetwork extends Network {
       })
     }
   }
+  createEndSystems = () => {
+    // initialize ref array if it does not already exist
+    this.EndSystems = ref<NodeMeta[]>([])
+
+    for (
+      let i = 1 + this.TopoConfig.value.num_nodes;
+      i <= this.TopoConfig.value.num_es + this.TopoConfig.value.num_nodes;
+      i++
+    ) {
+      const es = <NodeMeta>{
+        id: i,
+        type: Math.floor(4 + this.Rand.next() * 3),
+        pos: [
+          Math.floor(this.Rand.next() * this.TopoConfig.value.grid_size) -
+            this.TopoConfig.value.grid_size / 2,
+          Math.floor(this.Rand.next() * this.TopoConfig.value.grid_size) -
+            this.TopoConfig.value.grid_size / 2
+        ],
+        tx_cnt: 0,
+        rx_cnt: 0,
+        neighbors: [],
+        w: new Worker(new URL('@/networks/es.ts', import.meta.url), { type: 'module' })
+      }
+      console.log(i)
+      es.neighbors = this.KDTree.FindKNearest(es.pos, 1, this.TopoConfig.value.grid_size)
+      if (es.neighbors.length > 0) {
+        this.addLink(es.id, es.neighbors[0], LINK_TYPE.WIRED)
+      }
+
+      es.w!.postMessage(<Message>{
+        type: MSG_TYPE.INIT,
+        payload: <INIT_MSG_PAYLOAD>{
+          id: es.id,
+          pos: toRaw(es.pos)
+        }
+      })
+      // handle msg/pkt from end systems
+      es.w!.onmessage = (e: any) => {
+        if ('uid' in e.data == false) {
+          const msg: Message = e.data
+          console.log(msg)
+        } else {
+          const pkt: Packet = e.data
+          this.Nodes.value[pkt.mac_dst].w!.postMessage(pkt)
+          this.Packets.value.push(pkt)
+          this.PacketsCurrent.value.push(pkt)
+          this.SlotDone.value = true
+        }
+      }
+
+      this.EndSystems.value.push(es)
+      this.Nodes.value.push(es)
+    }
+  }
 }
diff --git a/src/networks/TSN/typedefs.ts b/src/networks/TSN/typedefs.ts
index 62631c9..6758360 100644
--- a/src/networks/TSN/typedefs.ts
+++ b/src/networks/TSN/typedefs.ts
@@ -11,5 +11,6 @@ export enum TSN_PKT_TYPE {
 }
 
 export interface TSN_INIT_MSG_PAYLOAD extends INIT_MSG_PAYLOAD {
+  neighbors: number[]
   sch_config: ScheduleConfig
 }
diff --git a/src/networks/common.ts b/src/networks/common.ts
index e202f30..fda9212 100644
--- a/src/networks/common.ts
+++ b/src/networks/common.ts
@@ -1,3 +1,7 @@
+import { ref, type Ref } from 'vue'
+import { SeededRandom } from '@/utils/rand'
+import { KDTree } from '@/utils/kdtree'
+
 export enum NETWORK_TYPE {
   TSCH,
   TSN,
@@ -39,8 +43,11 @@ export enum LINK_TYPE {
 
 export interface FlowMeta {
   id: number
-  src: number
-  dst: number
+  e2e_src: number
+  e2e_dst: number
+  deadline: number
+  period: number
+  workload: number
 }
 
 // Packet is transfered among nodes, at data-link layer
@@ -103,3 +110,76 @@ export interface TopologyConfig {
   grid_size: number
   tx_range: number
 }
+
+export class Network {
+  ID: number
+  Type: number
+  Nodes = ref<NodeMeta[]>([]) // nodes and endsystems, for visualization
+  NetworkDevices: any // tsn bridges, tsch relay or 5g ue/bs
+  EndSystems = ref<NodeMeta[]>([])
+  Links = ref<{ [uid: number]: LinkMeta }>([])
+  Flows = ref<FlowMeta[]>([])
+  TopoConfig: Ref<TopologyConfig>
+  KDTree: KDTree
+  SchConfig: any
+  Schedule: any
+  Packets = ref<Packet[]>([])
+  ASN = ref(0)
+  asnTimer: any
+  PacketsCurrent = ref<Packet[]>([])
+
+  SignalReset = ref(0)
+  SlotDone = ref(false)
+  Running = ref(false)
+  SlotDuration = ref(750)
+
+  Rand: SeededRandom
+
+  constructor() {
+    this.ID = 1
+    this.Type = -1
+    this.TopoConfig = ref<TopologyConfig>({
+      seed: 1,
+      num_nodes: 10,
+      num_es: 1,
+      grid_size: 80,
+      tx_range: 25
+    })
+    this.Rand = new SeededRandom(this.TopoConfig.value.seed)
+    this.Nodes.value.push(<NodeMeta>{}) // placeholder
+    this.KDTree = new KDTree()
+  }
+
+  addLink(v1: number, v2: number, type: number) {
+    if (v1 > v2) {
+      ;[v1, v2] = [v2, v1]
+    }
+    // Cantor pairing
+    const uid = 0.5 * (v1 + v2) * (v1 + v2 + 1) + v2
+    if (this.Links.value[uid] == undefined) {
+      this.Links.value[uid] = <LinkMeta>{ uid, v1, v2, type }
+    }
+  }
+
+  Run = () => {
+    this.Step()
+    this.Running.value = true
+    this.asnTimer = setInterval(() => {
+      this.ASN.value++
+      this.SlotDone.value = false
+    }, this.SlotDuration.value)
+  }
+  Step = () => {
+    this.ASN.value++
+    this.SlotDone.value = false
+  }
+  Pause = () => {
+    this.Running.value = false
+    clearInterval(this.asnTimer)
+  }
+  Reset = () => {
+    this.Running.value = false
+    clearInterval(this.asnTimer)
+    this.SignalReset.value++
+  }
+}
diff --git a/src/networks/network.ts b/src/networks/network.ts
deleted file mode 100644
index 2950316..0000000
--- a/src/networks/network.ts
+++ /dev/null
@@ -1,141 +0,0 @@
-import { ref, toRaw, type Ref } from 'vue'
-import { SeededRandom } from '@/hooks/useSeed'
-import { KDTree } from './kdtree'
-import {
-  LINK_TYPE,
-  MSG_TYPE,
-  type LinkMeta,
-  type Message,
-  type NodeMeta,
-  type Packet,
-  type TopologyConfig,
-  type INIT_MSG_PAYLOAD,
-  type FlowMeta
-} from './common'
-
-export class Network {
-  ID: number
-  Type: number
-  Nodes = ref<NodeMeta[]>([]) // nodes and endsystems, for visualization
-  NetworkDevices: any // tsn bridges, tsch relay or 5g ue/bs
-  EndSystems = ref<NodeMeta[]>([])
-  Links = ref<{ [uid: number]: LinkMeta }>([])
-  Flows = ref<FlowMeta[]>([])
-  TopoConfig: Ref<TopologyConfig>
-  KDTree: KDTree
-  SchConfig: any
-  Schedule: any
-  Packets = ref<Packet[]>([])
-  ASN = ref(0)
-  asnTimer: any
-  PacketsCurrent = ref<Packet[]>([])
-
-  SignalReset = ref(0)
-  SlotDone = ref(false)
-  Running = ref(false)
-  SlotDuration = ref(750)
-
-  Rand: SeededRandom
-
-  constructor() {
-    this.ID = 1
-    this.Type = -1
-    this.TopoConfig = ref<TopologyConfig>({
-      seed: 1,
-      num_nodes: 10,
-      num_es: 1,
-      grid_size: 80,
-      tx_range: 25
-    })
-    this.Rand = new SeededRandom(this.TopoConfig.value.seed)
-    this.Nodes.value.push(<NodeMeta>{})
-    this.KDTree = new KDTree()
-  }
-  // call after createNodes
-  createEndSystems() {
-    // initialize ref array if it does not already exist
-    this.EndSystems = ref<NodeMeta[]>([])
-
-    for (
-      let i = 1 + this.TopoConfig.value.num_nodes;
-      i <= this.TopoConfig.value.num_es + this.TopoConfig.value.num_nodes;
-      i++
-    ) {
-      const es = <NodeMeta>{
-        id: i,
-        type: Math.floor(4 + this.Rand.next() * 3),
-        pos: [
-          Math.floor(this.Rand.next() * this.TopoConfig.value.grid_size) -
-            this.TopoConfig.value.grid_size / 2,
-          Math.floor(this.Rand.next() * this.TopoConfig.value.grid_size) -
-            this.TopoConfig.value.grid_size / 2
-        ],
-        tx_cnt: 0,
-        rx_cnt: 0,
-        neighbors: [],
-        w: new Worker(new URL('@/networks/es.ts', import.meta.url), { type: 'module' })
-      }
-      console.log(i)
-      es.neighbors = this.KDTree.FindKNearest(es.pos, 1, this.TopoConfig.value.grid_size)
-      if (es.neighbors.length > 0) {
-        this.addLink(es.id, es.neighbors[0], LINK_TYPE.WIRED)
-      }
-
-      es.w!.postMessage(<Message>{
-        type: MSG_TYPE.INIT,
-        payload: <INIT_MSG_PAYLOAD>{
-          id: es.id,
-          pos: toRaw(es.pos)
-        }
-      })
-      // handle msg/pkt from end systems
-      es.w!.onmessage = (e: any) => {
-        if ('uid' in e.data == false) {
-          const msg: Message = e.data
-          console.log(msg)
-        } else {
-          const pkt: Packet = e.data
-          this.Nodes.value[pkt.mac_dst].w!.postMessage(pkt)
-          this.Packets.value.push(pkt)
-          this.PacketsCurrent.value.push(pkt)
-          this.SlotDone.value = true
-        }
-      }
-
-      this.EndSystems.value.push(es)
-      this.Nodes.value.push(es)
-    }
-  }
-  addLink(v1: number, v2: number, type: number) {
-    if (v1 > v2) {
-      ;[v1, v2] = [v2, v1]
-    }
-    // Cantor pairing
-    const uid = 0.5 * (v1 + v2) * (v1 + v2 + 1) + v2
-    if (this.Links.value[uid] == undefined) {
-      this.Links.value[uid] = <LinkMeta>{ uid, v1, v2, type }
-    }
-  }
-
-  Run = () => {
-    this.Step()
-    this.Running.value = true
-    this.asnTimer = setInterval(() => {
-      this.ASN.value++
-      this.SlotDone.value = false
-    }, this.SlotDuration.value)
-  }
-  Step = () => {
-    this.ASN.value++
-    this.SlotDone.value = false
-  }
-  Pause = () => {
-    this.Running.value = false
-    clearInterval(this.asnTimer)
-  }
-  Reset = () => {
-    this.Running.value = false
-    clearInterval(this.asnTimer)
-    this.SignalReset.value++
-  }
-}
diff --git a/src/networks/kdtree.ts b/src/utils/kdtree.ts
similarity index 100%
rename from src/networks/kdtree.ts
rename to src/utils/kdtree.ts
diff --git a/src/hooks/useSeed.ts b/src/utils/rand.ts
similarity index 95%
rename from src/hooks/useSeed.ts
rename to src/utils/rand.ts
index 09ef2bb..84fe149 100644
--- a/src/hooks/useSeed.ts
+++ b/src/utils/rand.ts
@@ -1,4 +1,3 @@
-// ai generated code :)
 export class SeededRandom {
   private m_w: number
   private m_z: number