Numerical Attributes

There a a variety of data plane and control plane protocol resources that need to be shared between the driver and any entity that configures backbone protocols. This pages gathers driver responsible resources and explains there generations.

Driver Responsible Ranges

Ranges

Config Object	Significance	Correpsonding OpenStack Resource	Managed Ranges
interface, eg. Ethernet1	switch	binding_host or metagroup	all interfaces appearing in the driver config
LAG, eg. Port-Channel101	switch	lag assignment in driver config	all interfaces appearing in the driver config, numbers will not be allocated by driver but by netbox/netbox-modeller, see LAG Ranges
VLAN id	switchgroup	segment or infra_network in driver config	driver allocates VLANs in the range of 2000-3750, a VLAN assigned to an infra_network in the driver config bound to a switchgroup [1] will be controlled on that switchgroup.
VXLAN VNI	region	network	driver allocates VNIs in the 10000 - 65535 a VNI assigned to an infra_network in the driver config bound to a switchgroup [1] will be controlled on that switchgroup, VNIs assigned through driver config must follow the L2 Networks VLAN to VNI mapping.
L2 EVPN RD	region	network	dependent on VNI allocation, using type 0 formatting: administrative subfield: f{switchgroup_id} assigned number subfield: f{vni_id} resulting in RD for VNI 12666 on switchgroup 1112 in AZ D: 1112:12666
L2 EVPN RT	region	network	dependent on VNI allocation, using type 0 formatting: administrative subfield: f{az_number} assigned number subfield: f{vni_id} resulting in RT for VNI 12666 in AZ D: 4:12666
L3 EVPN RD and RT	region	external network with subnet	not maintained by the driver, but preconfigured, dependent on VRF affinity, using type 2 formatting: administrative subfield: f'{switch_asn}' if the external network has an az_hint: assigned number subfield: f'{az_number}1{vrf_id:02d}' resulting in RD and RT an external az-hinted network in AZ D in VRF 76: 65130.4122:4176 else: assigned number subfield: f'1{vrf_id:02d}' resulting in RD and RT an external az-hinted network in AZ D in VRF 23: 65130.4122:176

[1] (1,2)

Attributes of an infra_network are transitively assigned to the switchgroup by the hostgroups reference to a switchgroup

Driver Managed Networks

There are 2 ways in which the driver manages Networks, either wholistically or just in the allowed VLAN list. Please see infra_networks and extra_vlans for details.

The following list will provide an overview for driver managed Infrastructure Networks or extra VLANs in our Infrastructure. It does not aim to be complete or up-to-date. Authoritative data is found in the driver config or in Netbox. See Infrastructure Networks and Extra VLANs for details

Driver Managed Networks

Name	Identified by	Pod Roles	Type of Management
vPOD Infra Networks	VID 101-107 in every vPOD	vPOD	Infrastructure Network
SWIFT Node MTU Replication Network	VID 101 in f’{region}-regional VLAN group	stPOD	extra VLAN
SWIFT Node Infra Networks	VID 754-756 in f’{region}-cp VLAN group	stPOD	extra VLAN
SWIFT Node K8S Peering Network	VID 901 in f’{region}-cp VLAN group	stPOD	extra VLAN
Manila Replication Network	global VID 981	stPOD	extra VLAN