topotest: enable MPLS processing on all interfaces by default

This is necessary to make some tests work correctly. Only topologies
created using the topogen framework benefit from this change.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

diff --git a/tests/topotests/lib/topogen.py b/tests/topotests/lib/topogen.py
index d7145c3be0ffb25c4a60943c08847f5d2e9f3953..6859f5a076820869c2005179040ba4ada08c9688 100644 (file)
--- a/tests/topotests/lib/topogen.py
+++ b/tests/topotests/lib/topogen.py
@@ -61,6 +61,7 @@ from mininet.cli import CLI
 
 from lib import topotest
 from lib.topolog import logger, logger_config
+from lib.topotest import set_sysctl
 
 CWD = os.path.dirname(os.path.realpath(__file__))
 
@@ -676,6 +677,10 @@ class TopoRouter(TopoGear):
 
         if result != '':
             self.tgen.set_error(result)
+        else:
+            # Enable MPLS processing on all interfaces.
+            for interface in self.links.keys():
+                set_sysctl(nrouter, 'net.mpls.conf.{}.input'.format(interface), 1)
 
         return result