This NApp is responsible for tracking the network topology and supplying network topology information to any NApp that requires it.
This NApp intends to be protocol agnostic. Therefore, if you want to provide network topology data from any network protocol, check the listened events section and generate them from your NApp.
To install this NApp, first, make sure to have the same venv activated as you have kytos
installed on:
$ git clone https://github.com/kytos-ng/topology.git
$ cd topology
$ python setup.py develop
.*.switch.(new|reconnected)
.*.connection.lost
.*.switch.interface.created
.*.switch.interface.deleted
.*.switch.interface.link_up
.*.switch.interface.link_down
.*.switch.port.created
.*.switch.port.modified
.*.switch.port.deleted
.*.interface.is.nni
.*.network_status.updated
kytos/.*.link_available_tags
kytos/maintenance.start_link
kytos/maintenance.end_link
kytos/maintenance.start_switch
kytos/maintenance.end_switch
kytos/.*.liveness.(up|down)
kytos/.*.liveness.disabled
kytos/topology.get
kytos/topology.notify_link_up_if_status
Event reporting that the topology was loaded from the database. It contains the most updated topology.
Content:
{
'topology': <Topology object>,
'failed_switches': {<description of failed switches>},
'failed_links': {<description of failed links>}
}
Event reporting that the topology was updated. It contains the most updated topology.
Content:
{
'topology': <Topology object>
}
Event reporting the current topology, this is meant as a broadcast response when a subscriber needs it for reconciliation.
Content:
{
'topology': <Topology object>
}
Event reporting that the switch was enabled. It contains the switch id.
Content:
{
'dpid': <switch.id>
}
Event reporting that the switch was disabled. It contains the switch id.
Content:
{
'dpid': <switch.id>
}
Event reporting that the link was changed to 'up'. It contains the link instance.
Content:
{
'link': <Link object>
}
Event reporting that the link was changed to 'down'. It contains the link instance.
Content:
{
'link': <Link object>
}
Event reporting metadata changes.
Content:
{
'switch|interface|link': <object>,
'metadata': object's metadata dict
}
Event reporting that the link was changed to 'down'. It contains the link instance.
Content:
{
'reason': 'link_enabled'
'link': <Link object>
}