NF Runtime Errors

[sreyanalla]

Bug Report

Runtime errors pertaining to arp_response, load_generator, flow_table NFs.

Current Behavior The following errors are encountered:

• arp_response : NF exits due to "invalid command-line arguments" even if arguments are valid
• load_generator : NF exits because it "failed to obtain MAC address" with -m
• flow_table : hangs indefinitely after NF start up. NF need to be killed manually

Expected behavior/code

• arp_response: NF should only exit for this reason if arguments are invalid
• load_generator : MAC address should be properly obtained, allowing NF to run smoothly
• flow_table : NF should not hang -- if an error is identified, the NF should be killed automatically

Steps to reproduce To reproduce, run each NF example as described in their respective examples folder. Note: run load_generator using -m flag

Environment

• OS: Ubuntu 18.04
• onvm version: ONVM 20.05 (Current)

[catherinemeadows]

I can work on the fixes for the load_generator NF

[sreyanalla]

Looked into/ran arp_response and it seems like the "invalid arguments" issue no longer persists. If anyone else could validate this that would be great.

[catherinemeadows]

I was never able to replicate this issue, so I'm not sure what was happening. Maybe someone else can verify too