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-rw-r--r--resources/libraries/python/InterfaceUtil.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index 0447ba5b15..2980afa349 100644
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -225,6 +225,9 @@ class InterfaceUtil(object):
"""
if_data = InterfaceUtil.vpp_get_interface_data(node, interface)
+ 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'])
mac_data = [str(hex(item))[2:] for item in if_data['l2_address'][:6]]
mac_data_nice = []
for item in mac_data: