Fix typo

services/web/apps/pm/ddash/dashboards/link.py

@@ -30,7 +30,7 @@ class LinkDashboard(JinjaDashboard):
             "device_a": mos.interfaces[0].managed_object.name.replace('"', ""),
             "device_b": mos.interfaces[1].managed_object.name.replace('"', ""),
             "bi_id_a": mos.interfaces[0].managed_object.bi_id,
-            "bi_id_b": mos.interfaces[0].managed_object.bi_id,
+            "bi_id_b": mos.interfaces[1].managed_object.bi_id,
             "interface_a": {
                 "name": mos.interfaces[0].name,
                 "descr": mos.interfaces[0].description or mos.interfaces[0].name,