[P4-dev] bmv2: "Error when requesting config md5 sum from switch"
dhancock at cs.utah.edu
Sat Sep 15 21:23:18 EDT 2018
I get "Error when requesting config md5 sum from switch" when executing:
object>, <JSON path>)
in my python-based controller that connects to a bmv2 simple_switch. I
did not get this error in mininet experiments; I'm only getting it now
that I'm trying to experiment on a physical cluster.
Is there a common reason for that error?
Here is some of the code preceding the statement that results in the error:
ip = 'localhost'
port = 9090
std_client, mc_client, sswitch_client =
runtime_CLI.thrift_connect(ip, port, services)
return "Error - create_device(" + dev_name + "): " +
json = <path to JSON>
I can break right before the load_json_config call and everything looks
in order - in particular, get_thrift_services and thrift_connect
Thank you for any ideas you may have,
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