diff --git a/configs/grafana/weathermap-dashboard.json b/configs/grafana/weathermap-dashboard.json
index a154780..b57fa99 100644
--- a/configs/grafana/weathermap-dashboard.json
+++ b/configs/grafana/weathermap-dashboard.json
@@ -4222,7 +4222,7 @@
               "type": "prometheus",
               "uid": "cfrlusac89se8a"
             },
-            "expr": "sum by (site) (rate(interfaces_interface_state_counters_in_octets{site=~\"$site\"}[5m]) * 8)",
+            "expr": "sum by (site) (rate(interfaces_interface_state_counters_in_octets{site=~\"$site\", interface!~\"Management.*\"}[5m]) * 8)",
             "legendFormat": "{{site}} in"
           },
           {
@@ -4231,7 +4231,7 @@
               "type": "prometheus",
               "uid": "cfrlusac89se8a"
             },
-            "expr": "-sum by (site) (rate(interfaces_interface_state_counters_out_octets{site=~\"$site\"}[5m]) * 8)",
+            "expr": "-sum by (site) (rate(interfaces_interface_state_counters_out_octets{site=~\"$site\", interface!~\"Management.*\"}[5m]) * 8)",
             "legendFormat": "{{site}} out"
           }
         ]
diff --git a/scripts/generate_weathermap.py b/scripts/generate_weathermap.py
index e470730..5fa6ed3 100644
--- a/scripts/generate_weathermap.py
+++ b/scripts/generate_weathermap.py
@@ -571,14 +571,17 @@ def build_throughput_panel(panel_id, datasource_uid, grid_y):
             {
                 "refId": "A",
                 "datasource": ds,
-                "expr": 'sum by (site) (rate(interfaces_interface_state_counters_in_octets{site=~"$site"}[5m]) * 8)',
+                # Management0 excluded -- gNMI telemetry traffic on the OOB
+                # port otherwise swamps fabric traffic and skews in/out
+                # wildly asymmetric, see #51.
+                "expr": 'sum by (site) (rate(interfaces_interface_state_counters_in_octets{site=~"$site", interface!~"Management.*"}[5m]) * 8)',
                 "legendFormat": "{{site}} in",
             },
             {
                 "refId": "B",
                 "datasource": ds,
                 # negated so in/out render as a signed graph (in above zero, out below)
-                "expr": '-sum by (site) (rate(interfaces_interface_state_counters_out_octets{site=~"$site"}[5m]) * 8)',
+                "expr": '-sum by (site) (rate(interfaces_interface_state_counters_out_octets{site=~"$site", interface!~"Management.*"}[5m]) * 8)',
                 "legendFormat": "{{site}} out",
             },
         ],