def send_desc_request(controller, switch):
"""Request vendor-specific switch description.
Args:
controller(:class:`~kytos.core.controller.Controller`):
the controller being used.
switch(:class:`~kytos.core.switch.Switch`):
target to send a stats request.
"""
multipart_request = MultipartRequest()
multipart_request.multipart_type = MultipartType.OFPMP_DESC
emit_message_out(controller, switch.connection, multipart_request)
def send_desc_request(controller, switch):
"""Method responsible for request stats of flow to switches.
Args:
controller(:class:`~kytos.core.controller.Controller`):
the controller being used.
switch(:class:`~kytos.core.switch.Switch`):
target to send a stats request.
"""
multipart_request = MultipartRequest()
multipart_request.multipart_type = MultipartType.OFPMP_DESC
emit_message_out(controller, switch.connection, multipart_request)
def _get_versioned_request(of_version):
if of_version == 0x01:
return StatsRequest(body_type=StatsType.OFPST_PORT,
body=v0x01.PortStatsRequest(
Port.OFPP_NONE)) # All ports
return MultipartRequest(multipart_type=MultipartType.OFPMP_PORT_STATS,
body=v0x04.PortStatsRequest())
def _get_versioned_request(of_version):
if of_version == 0x01:
return StatsRequest(
body_type=StatsType.OFPST_FLOW,
body=v0x01.FlowStatsRequest())
return MultipartRequest(
multipart_type=MultipartType.OFPMP_FLOW,
body=v0x04.FlowStatsRequest())
def update_flow_list(controller, switch):
"""Request flow stats from switches.
Args:
controller(:class:`~kytos.core.controller.Controller`):
the controller being used.
switch(:class:`~kytos.core.switch.Switch`):
target to send a stats request.
Returns:
int: multipart request xid
"""
multipart_request = MultipartRequest()
multipart_request.multipart_type = MultipartType.OFPMP_FLOW
multipart_request.body = FlowStatsRequest()
emit_message_out(controller, switch.connection, multipart_request)
return multipart_request.header.xid
def request_port_stats(controller, switch):
"""Request port stats from switches.
Args:
controller(:class:`~kytos.core.controller.Controller`):
the controller being used.
switch(:class:`~kytos.core.switch.Switch`):
target to send a stats request.
Returns:
int: multipart request xid
"""
multipart_request = MultipartRequest()
multipart_request.multipart_type = MultipartType.OFPMP_PORT_STATS
multipart_request.body = PortStatsRequest()
emit_message_out(controller, switch.connection, multipart_request)
return multipart_request.header.xid
def send_port_request(controller, connection):
"""Send a Port Description Request after the Features Reply."""
port_request = MultipartRequest()
port_request.multipart_type = MultipartType.OFPMP_PORT_DESC
emit_message_out(controller, connection, port_request)