tree 5616a08da31184bf17d6b3135c96732028232448
parent 5c7fe3acf43bf1304038a7be55a5fd45e5805396
author Miguel Borges de Freitas <miguel-r-freitas@alticelabs.com> 1633802899 +0100
committer Miguel Borges de Freitas <miguel-r-freitas@alticelabs.com> 1634313334 +0100

[OpenFlow] Save dp_desc as a device annotation

dp_desc represents the human readable description of a given datapath
and is provided by an OpenFlow switch when it connects to the controller
in the response to the OFPMP_DESC request. ONOS already has access to
this information when the OpenFlowSwitch object is constructed (accessed
via sw.datapathDescription()) but it does not save it or propagate it in
any way. dp_desc, unlike the dp_id which is "random", works like a switch
label. Accessing this information from the controller app layer is
important so that different business logic can be applied according to
the provided "marking". Thus, save the value into the Device Annotations
if available.

Change-Id: Ifaa715a0440e99ce31fdd8d4753c2e892385e33b