[ovs-dev] Modification in ovs-ofctl commands for implementation of Importance parameter.

[Shashwat Srivastava]

Hi Team,

We are working on the implementation on eviction mechanism on basis of 
importance as per openflow specs-1.4. We have added importance parameter 
in the flow entry. And are going through various commands (replace-flows, 
diff-flows) for enhancement.

We wanted to confirm about the "ovs-ofctl diff-flows br0 <Filename>" 
command gives the output with both signs (plus + & minus -) for flows 
which are on bridge and for flows on the file as per the case.
When we are mentioning openflow13 in the command as in "ovs-ofctl -O 
openflow13 diff-flows br0 <Filename>", then the output received contain 
only the flows written in the file with a plus or minus sign i.e. it is 
dumping only the flows of the file and not compairing with the flows on 
the switch which it should ideally do.

Query 1: What is the significance by mentioning openflow13 in the 
ovs-ofctl -O openflow13 diff-flows br0 <Filename>.

Query 2: When we are adding a flow using default standard (that is not 
including importance in the flow) and adding the flow in the file having 
importance, then using "ovs-ofclt diff-flows br0 <filename>" we are 
getting difference in each flow as the file contains importance and the 
flow in switch does not. This is because we are not adding importance 
field in the structure ofp10_flow_mod, as discussed with you earlier. 
So the question is after implementing these changes how to make the test 
case for the same, meaning as the output is having difference so shall 
compare the output with the ones we are receiving after doing changes of 
importance.

Regards
Shashwat Srivastava
Mailto: shashwat.srivastava at tcs.com
Website: http://www.tcs.com
=====-----=====-----=====
Notice: The information contained in this e-mail
message and/or attachments to it may contain 
confidential or privileged information. If you are 
not the intended recipient, any dissemination, use, 
review, distribution, printing or copying of the 
information contained in this e-mail message 
and/or attachments to it are strictly prohibited. If 
you have received this communication in error, 
please notify us by reply e-mail or telephone and 
immediately and permanently delete the message 
and any attachments. Thank you