diff --git a/mixnet/v2/sim/config.py b/mixnet/v2/sim/config.py
index 15af39e..f1314c5 100644
--- a/mixnet/v2/sim/config.py
+++ b/mixnet/v2/sim/config.py
@@ -10,7 +10,7 @@ import yaml
 class Config:
     simulation: SimulationConfig
     mixnet: MixnetConfig
-    p2p: P2pConfig
+    p2p: P2PConfig
     measurement: MeasurementConfig
     adversary: AdversaryConfig
 
@@ -95,15 +95,22 @@ class MixnetConfig:
 
 
 @dataclass
-class P2pConfig:
+class P2PConfig:
+    # Broadcasting type: naive | gossip
+    type: str
     # A maximum network latency between nodes directly connected with each other
     max_network_latency: float
 
+    TYPE_NAIVE = "naive"
+    TYPE_GOSSIP = "gossip"
+
     def validate(self):
+        assert self.type in [self.TYPE_NAIVE, self.TYPE_GOSSIP]
         assert self.max_network_latency >= 0
 
     def description(self):
         return (
+            f"p2p_type: {self.type}\n"
             f"max_net_latency: {self.max_network_latency:.2f}"
         )
 
diff --git a/mixnet/v2/sim/config.yaml b/mixnet/v2/sim/config.yaml
index 065e2f0..cf444c6 100644
--- a/mixnet/v2/sim/config.yaml
+++ b/mixnet/v2/sim/config.yaml
@@ -26,6 +26,8 @@ mixnet:
   max_mix_delay: 3
 
 p2p:
+  # Broadcasting type: naive | gossip
+  type: "naive"
   # A maximum network latency between nodes directly connected with each other
   max_network_latency: 0.5
 
diff --git a/mixnet/v2/sim/simulation.py b/mixnet/v2/sim/simulation.py
index b236807..437851d 100644
--- a/mixnet/v2/sim/simulation.py
+++ b/mixnet/v2/sim/simulation.py
@@ -2,9 +2,9 @@ import random
 
 import simpy
 
-from config import Config
+from config import Config, P2PConfig
 from node import Node
-from p2p import NaiveBroadcastP2P
+from p2p import NaiveBroadcastP2P, GossipP2P
 
 
 class Simulation:
@@ -18,3 +18,13 @@ class Simulation:
 
     def run(self):
         self.env.run(until=self.config.simulation.running_time)
+
+    @classmethod
+    def init_p2p(cls, env: simpy.Environment, config: Config):
+        match config.p2p.type:
+            case P2PConfig.TYPE_NAIVE:
+                return NaiveBroadcastP2P(env, config)
+            case P2PConfig.TYPE_GOSSIP:
+                return GossipP2P(env, config)
+            case _:
+                raise ValueError("Unknown P2P type")
\ No newline at end of file