Two VLANs on one facility port

[Michael Zink]

Hi,

we are trying to get the following scenario (see figure below) set up and are running into an issue on the FABRIC side.
So far we, have not been able to add both ports of the FPGA on two different facility ports that are within the VLAN range assigned to the OCT-MGHPCC facility port.

Below is the code from the Jupyter Notebook cell I’m using to allocate a slice.

[code=python] # Create Slice. Note that by default submit() call will poll for 360 seconds every 10-20 seconds
# waiting for slice to come up. Normal expected time is around 2 minutes.
slice = fablib.new_slice(name=slice_name)

# Add node with a 100G drive and a couple of CPU cores (default)
node = slice.add_node(name=node_name, site=site, disk=100,image=’default_ubuntu_22′)
fpga_comp=node.add_component(model=FPGA_CHOICE, name=’fpga1′)
fpga_p1 = fpga_comp.get_interfaces()[0]
fpga_p2 = fpga_comp.get_interfaces()[1]

# try to add a facility port to the MASS site
facility_port=’OCT-MGHPCC’
# facility_port2=’OCT-MGHPCC2′
facility_port_site=’MASS’
facility_port1_vlan=’3112′
facility_port2_vlan=’3113′

facility_port1 = slice.add_facility_port(name=facility_port, site=facility_port_site, vlan=facility_port1_vlan)
facility_port1_interface =facility_port1.get_interfaces()[0]
facility_port2 = slice.add_facility_port(name=facility_port, site=facility_port_site, vlan=facility_port2_vlan)
facility_port2_interface =facility_port2.get_interfaces()[0]
node.add_fabnet()

print(f”facility_port.get_site(): {facility_port1.get_site()}”)

net1 = slice.add_l2network(name=f’net_facility_port1′, interfaces=[fpga_p1,facility_port1_interface])
net2 = slice.add_l2network(name=f’net_facility_port2′, interfaces=[fpga_p2,facility_port2_interface])

#Submit Slice Request
slice.submit(); [/code]

When executing this code I get the following error message.

[code]

---------------------------------------------------------------------------
PropertyGraphQueryException               Traceback (most recent call last)
Cell In[23], line 20
     18 facility_port1 = slice.add_facility_port(name=facility_port, site=facility_port_site, vlan=facility_port1_vlan)
     19 facility_port1_interface =facility_port1.get_interfaces()[0]
---> 20 facility_port2 = slice.add_facility_port(name=facility_port, site=facility_port_site, vlan=facility_port2_vlan)
     21 facility_port2_interface =facility_port2.get_interfaces()[0]
     22 node.add_fabnet()

File ~/fabrictestbed-extensions/fabrictestbed_extensions/fablib/slice.py:1154, in Slice.add_facility_port(self, name, site, vlan, labels, peer_labels, bandwidth, mtu)
   1124 def add_facility_port(
   1125     self,
   1126     name: str = None,
   (...)
   1132     mtu: int = None,
   1133 ) -> FacilityPort:
   1134     """
   1135     Adds a new L2 facility port to this slice
   1136 
   (...)
   1152     :rtype: NetworkService
   1153     """
-> 1154     return FacilityPort.new_facility_port(
   1155         slice=self,
   1156         name=name,
   1157         site=site,
   1158         vlan=vlan,
   1159         labels=labels,
   1160         peer_labels=peer_labels,
   1161         bandwidth=bandwidth,
   1162         mtu=mtu,
   1163     )

File ~/fabrictestbed-extensions/fabrictestbed_extensions/fablib/facility_port.py:218, in FacilityPort.new_facility_port(slice, name, site, vlan, bandwidth, mtu, labels, peer_labels)
    211         iface_tuple = (
    212             f"iface-{index}",
    213             Labels(vlan=v),
    214             capacities,
    215         )
    216         interfaces.append(iface_tuple)
--> 218 fim_facility_port = slice.get_fim_topology().add_facility(
    219     name=name,
    220     site=site,
    221     capacities=capacities,
    222     labels=labels,
    223     peer_labels=peer_labels,
    224     interfaces=interfaces,
    225 )
    226 return FacilityPort(slice, fim_facility_port)

File /opt/conda/lib/python3.11/site-packages/fim/user/topology.py:255, in Topology.add_facility(self, name, node_id, site, nstype, nslabels, interfaces, **kwargs)
    241 """
    242 Add a facility node with VLAN service and FacilityPort interface as a single construct.
    243 Works for aggregate topologies and experiment topologies the same way.
   (...)
    252 :kwargs: parameters for the interface of the facility (bandwidth, mtu, LAN tags etc)
    253 """
    254 # should work with deep sliver reconstruction
--> 255 facn = self.add_node(name=name, node_id=node_id, site=site, ntype=NodeType.Facility)
    256 facs = facn.add_network_service(name=name + '-ns', node_id=node_id + '-ns' if node_id else None,
    257                                 nstype=nstype, labels=nslabels)
    258 if not interfaces:
    259     # if no interfaces are defined, use implicit definition and kwargs
    260     # this is how the code was defined originally

File /opt/conda/lib/python3.11/site-packages/fim/user/topology.py:210, in Topology.add_node(self, name, node_id, site, ntype, **kwargs)
    208     raise TopologyException('Node names must be unique within topology.')
    209 # add node to graph
--> 210 n = Node(name=name, node_id=node_id, topo=self, site=site,
    211          etype=ElementType.NEW, ntype=ntype, **kwargs)
    212 return n

File /opt/conda/lib/python3.11/site-packages/fim/user/node.py:103, in Node.__init__(self, name, node_id, topo, etype, ntype, site, ns_info, check_existing, **kwargs)
    101     sliver.network_service_info = ns_info
    102     sliver.set_properties(**kwargs)
--> 103     self.topo.graph_model.add_network_node_sliver(sliver=sliver)
    104 else:
    105     assert node_id is not None

File /opt/conda/lib/python3.11/site-packages/fim/graph/abc_property_graph.py:1211, in ABCPropertyGraph.add_network_node_sliver(self, sliver)
   1207 assert sliver.node_id is not None
   1209 if not self.check_node_unique(label=ABCPropertyGraph.CLASS_NetworkNode,
   1210                               name=sliver.resource_name):
-> 1211     raise PropertyGraphQueryException(msg=f'Node name {sliver.resource_name} must be unique.',
   1212                                       graph_id=self.graph_id, node_id=None)
   1214 props = self.node_sliver_to_graph_properties_dict(sliver)
   1215 self.add_node(node_id=sliver.node_id, label=ABCPropertyGraph.CLASS_NetworkNode, props=props)

PropertyGraphQueryException: [Node name OCT-MGHPCC must be unique.] in d2dcbe66-80ed-4577-b97d-deecaa9dab15

[/code]

A couple of questions:

• Am I making a conceptual error? (or, is this even possible?)
• If it’s possible, how can I reuse the same facility port (but with different VLANs) on two different interfaces that are located in the same host?
• I cannot think of a way how to resolve the error message since the facility port name (OCT-MGHPCC in this case) is given by default.

Thanks,

 

Mike

[Komal Thareja]

Hi Mike,

Could you try specifying multiple VLANs when adding the Facility port and then access the interfaces as shown below?

facility_port = slice.add_facility_port(name=facility_port, site=facility_port_site, vlan=['3300', '3301'])  
facility_port_interface_1 = facility_port.get_interfaces()[0]  
facility_port_interface_2 = facility_port.get_interfaces()[1]  

 

P.S: Please change the vlans accordingly in the example above.

Thanks,
Komal

• This reply was modified 3 weeks, 4 days ago by Komal Thareja.

[Author]

Posts