tree f8672df8a1ecfa1b4816dc8fe73ea2d4baf7423f
parent 0a5779c775359fa921ce916dadb9c65476645eba
author Miguel Borges de Freitas <miguel-r-freitas@alticelabs.com> 1633802899 +0100
committer Pier Luigi Ventre <pier@opennetworking.org> 1634224269 +0000

[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