From 5d26c996a9c0680b5de652955b92759fbed4703f Mon Sep 17 00:00:00 2001
From: pmikus <pmikus@cisco.com>
Date: Tue, 28 Sep 2021 07:46:41 +0000
Subject: [PATCH] fix(Core): Interface not recognized

+ Make better error message.

Signed-off-by: pmikus <pmikus@cisco.com>
Change-Id: I2dbb9a50215bd6665c5c278653edd9324314e6b8
---
 resources/libraries/python/InterfaceUtil.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index ebbd4f25fa..7e474abf8d 100644
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -212,6 +212,10 @@ class InterfaceUtil:
             raise ValueError(f"Unknown if_type: {if_type}")
 
         if node[u"type"] == NodeType.DUT:
+            if sw_if_index is None:
+                raise ValueError(
+                    f"Interface index for {interface} not assigned by VPP."
+                )
             if state == u"up":
                 flags = InterfaceStatusFlags.IF_STATUS_API_FLAG_ADMIN_UP.value
             elif state == u"down":
-- 
2.16.6