NFVBENCH-103 Add --hypervisor cli options and fix vm placement for multi-chain

[nfvbench.git] / nfvbench / traffic_gen / trex.py

diff --git a/nfvbench/traffic_gen/trex.py b/nfvbench/traffic_gen/trex.py
index 71b81c0..2f271aa 100644 (file)
--- a/nfvbench/traffic_gen/trex.py
+++ b/nfvbench/traffic_gen/trex.py
@@ -72,7 +72,7 @@ class TRex(AbstractTrafficGenerator):
 
     def get_version(self):
         """Get the Trex version."""
-        return self.client.get_server_version()
+        return self.client.get_server_version() if self.client else ''
 
     def get_pg_id(self, port, chain_id):
         """Calculate the packet group IDs to use for a given port/stream type/chain_id.