diff --git a/test/pc/e2e/network_quality_metrics_reporter.cc b/test/pc/e2e/network_quality_metrics_reporter.cc
index 56f0337037..6cd5efc678 100644
--- a/test/pc/e2e/network_quality_metrics_reporter.cc
+++ b/test/pc/e2e/network_quality_metrics_reporter.cc
@@ -28,15 +28,22 @@ constexpr int kStatsWaitTimeoutMs = 1000;
 constexpr char kUseStandardBytesStats[] = "WebRTC-UseStandardBytesStats";
 }
 
+NetworkQualityMetricsReporter::NetworkQualityMetricsReporter(
+    EmulatedNetworkManagerInterface* alice_network,
+    EmulatedNetworkManagerInterface* bob_network)
+    : networks_by_peer_({{"alice", alice_network}, {"bob", bob_network}}) {}
+
 void NetworkQualityMetricsReporter::Start(absl::string_view test_case_name) {
   test_case_name_ = std::string(test_case_name);
   // Check that network stats are clean before test execution.
-  EmulatedNetworkStats alice_stats = PopulateStats(alice_network_);
-  RTC_CHECK_EQ(alice_stats.packets_sent, 0);
-  RTC_CHECK_EQ(alice_stats.packets_received, 0);
-  EmulatedNetworkStats bob_stats = PopulateStats(bob_network_);
-  RTC_CHECK_EQ(bob_stats.packets_sent, 0);
-  RTC_CHECK_EQ(bob_stats.packets_received, 0);
+  for (const auto& entry : networks_by_peer_) {
+    EmulatedNetworkStats stats = PopulateStats(entry.second);
+    RTC_CHECK_EQ(stats.packets_sent, 0)
+        << "|packets_sent| for " << entry.first << " have to be 0 before test";
+    RTC_CHECK_EQ(stats.packets_received, 0)
+        << "|packets_received| for " << entry.first
+        << " have to be 0 before test";
+  }
 }
 
 void NetworkQualityMetricsReporter::OnStatsReports(
@@ -65,12 +72,11 @@ void NetworkQualityMetricsReporter::OnStatsReports(
 }
 
 void NetworkQualityMetricsReporter::StopAndReportResults() {
-  EmulatedNetworkStats alice_stats = PopulateStats(alice_network_);
-  EmulatedNetworkStats bob_stats = PopulateStats(bob_network_);
-  ReportStats("alice", alice_stats,
-              alice_stats.packets_sent - bob_stats.packets_received);
-  ReportStats("bob", bob_stats,
-              bob_stats.packets_sent - alice_stats.packets_received);
+  for (const auto& entry : networks_by_peer_) {
+    EmulatedNetworkStats stats = PopulateStats(entry.second);
+    ReportStats(entry.first, stats,
+                stats.packets_sent - stats.packets_received);
+  }
 
   if (!webrtc::field_trial::IsEnabled(kUseStandardBytesStats)) {
     RTC_LOG(LS_ERROR)
diff --git a/test/pc/e2e/network_quality_metrics_reporter.h b/test/pc/e2e/network_quality_metrics_reporter.h
index 6454f17526..abd89b9449 100644
--- a/test/pc/e2e/network_quality_metrics_reporter.h
+++ b/test/pc/e2e/network_quality_metrics_reporter.h
@@ -11,6 +11,7 @@
 #ifndef TEST_PC_E2E_NETWORK_QUALITY_METRICS_REPORTER_H_
 #define TEST_PC_E2E_NETWORK_QUALITY_METRICS_REPORTER_H_
 
+#include <map>
 #include <string>
 
 #include "api/test/network_emulation_manager.h"
@@ -23,9 +24,19 @@ namespace webrtc_pc_e2e {
 class NetworkQualityMetricsReporter
     : public PeerConnectionE2EQualityTestFixture::QualityMetricsReporter {
  public:
+  // Creates a network quality metrics reporter on specified
+  // EmulatedNetworkManagerInterface instances index by the labels. These labels
+  // will be used as prefix for the metric name.
+  // Instances of |EmulatedNetworkManagerInterface*| have to outlive
+  // NetworkQualityMetricsReporter.
+  explicit NetworkQualityMetricsReporter(
+      std::map<std::string, EmulatedNetworkManagerInterface*> networks_by_peer)
+      : networks_by_peer_(std::move(networks_by_peer)) {}
+  // Creates a network quality metrics reporter on specified for two network
+  // which will be labeled "alice" and "bob" respectively. Bot |alice_network|
+  // and |bob_network| have to outlive NetworkQualityMetricsReporter.
   NetworkQualityMetricsReporter(EmulatedNetworkManagerInterface* alice_network,
-                                EmulatedNetworkManagerInterface* bob_network)
-      : alice_network_(alice_network), bob_network_(bob_network) {}
+                                EmulatedNetworkManagerInterface* bob_network);
   ~NetworkQualityMetricsReporter() override = default;
 
   // Network stats must be empty when this method will be invoked.
@@ -56,8 +67,7 @@ class NetworkQualityMetricsReporter
 
   std::string test_case_name_;
 
-  EmulatedNetworkManagerInterface* alice_network_;
-  EmulatedNetworkManagerInterface* bob_network_;
+  std::map<std::string, EmulatedNetworkManagerInterface*> networks_by_peer_;
   rtc::CriticalSection lock_;
   std::map<std::string, PCStats> pc_stats_ RTC_GUARDED_BY(lock_);
 };