+ try:
+ with PapiSocketExecutor(node) as papi_exec:
+ reply = papi_exec.add(cmd).get_reply(err_msg)
+ except AssertionError:
+ # Perhaps VPP is an older version
+ old_cmd = u"nat_show_config"
+ with PapiSocketExecutor(node) as papi_exec:
+ reply = papi_exec.add(old_cmd).get_reply(err_msg)