X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=resources%2Flibraries%2Fpython%2FInterfaceUtil.py;h=a68b9211467bcb3bbfd1b51b312cd89247b92e02;hp=795bb52933994c45450c9ca126ed7da0fa7d29da;hb=2cc797fa23da02eefa19637521098ec41622189b;hpb=9a261ea61549fc6a5c23369d2e236b002dc35038

diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index 795bb52933..a68b921146 100644
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -220,6 +220,29 @@ class InterfaceUtil(object):
             return dict()
         return data
 
+    @staticmethod
+    def vpp_get_interface_name(node, sw_if_index):
+        """Get interface name for the given SW interface index from actual
+        interface dump.
+
+        :param node: VPP node to get interface data from.
+        :param sw_if_index: SW interface index of the specific interface.
+        :type node: dict
+        :type sw_if_index: int
+        :returns: Name of the given interface.
+        :rtype: str
+        """
+
+        if_data = InterfaceUtil.vpp_get_interface_data(node, sw_if_index)
+        if if_data['sup_sw_if_index'] != if_data['sw_if_index']:
+            if_data = InterfaceUtil.vpp_get_interface_data(
+                node, if_data['sup_sw_if_index'])
+        try:
+            if_name = if_data["interface_name"]
+        except KeyError:
+            if_name = None
+        return if_name
+
     @staticmethod
     def vpp_get_interface_mac(node, interface=None):
         """Get MAC address for the given interface from actual interface dump.