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Operate and maintain
Documents in this section provide background concepts and procedures for planning, deploying, and maintaining fabrics using the Fabric Services System.
User Guide
This document describes concepts necessary to use the Fabric Services System. It also includes procedures for designing, deploying, and maintaining fabrics, and designating fabric resources for allocation to specific sources of demand.
Fabric intents
Fabric intent parameters

Operate and maintain
Documents in this section provide background concepts and procedures for planning, deploying, and maintaining fabrics using the Fabric Services System.
- User Guide
  This document describes concepts necessary to use the Fabric Services System. It also includes procedures for designing, deploying, and maintaining fabrics, and designating fabric resources for allocation to specific sources of demand.
- Digital Sandbox CLI Guide
  This document describes concepts and commands required to interact directly with the Digital Sandbox, a network simulator to which you can deploy fabric intents and workload intents from the Fabric Services System.
- API Integration Guide
  This document describes aspects of the Fabric Services System REST API.
- Connect Guide
  This document describes aspects of the Fabric Services System Connect, a collection of intermediary software that acts as a bridge between the Fabric Services System and different cloud environments.

Fabric intent parameters

Required parameters

Required parameters for fabric intents defines the required fabric intent parameters and the available values that can be selected.

Some parameters apply only to some fabric intent types:

L/S: "Y" indicates the parameter applies to flexible leaf/spine fabric intents.
BB: "Y" indicates the parameter applies to Backbone fabric intents.

Manual fabric intents are configured differently, and have their own list of parameters in the UI following the import of initial data. For details about the parameters for fabric intents with manual topology, see Manual fabric topology parameters.

Table 1. Required parameters for fabric intents
Parameter	L/S	BB	Description	Values/Range
Reference Template	Y	Y	Predefined Nokia certified templates to create a fabric intent.	Flexible Leaf Spine Backbone
Fabric Type	Y	Y	The type of networking switch fabric to be implemented.	Real Digital Sandbox The Digital Sandbox option is used to create a virtual fabric to test and validating prospective designs. This option is described in Digital Sandbox.
Fabric Intent Name	Y	Y	The name of the fabric.	A string value
Description	Y	Y	A description of the fabric intent.	A string value
Prefix Naming	Y	Y	A string to be added at the beginning of the name of every node in the fabric intent. The rest of the node name is automatically generated. For example, enter "A01" here to assign nodes names such as "A01-leaf-1" and "A01-spine-1". The Prefix Naming string must be unique to each fabric.	A string value
Region	Y	Y	Identifies the region that contains the new fabric intent. The Fabric Services System currently supports only a single region. To create or edit a region now, you can click the Regions icon ( ) to navigate to the Regions page. This exits the fabric intent creation procedure. You must begin fabric intent creation again after creating the new region.	N/A
Software Catalog / Image ID	Y	Y	The version of SR Linux software to load onto all of the nodes in the new fabric.	Only software that has been loaded into the catalog. Currently supported: SR Linux 22.6.2-xx SR Linux 22.11.1-xx
Is Border Leaf	-	Y	Enable if this backbone fabric is serving as a "border leaf", able to carry EVPN workloads as well as provide access to an eternal network. Disable if this is a standard backbone that is not capable of carrying an EVPN workload.	Enabled, Disabled If enabled, only the 7220 IXR-D3 is supported as a node type.
Spine Node Type	Y	-	Select a supported type of hardware to act as a spine node.	7220 IXR-D3 7220 IXR-D3L 7250 IXR-6 7250 IXR-10 7220 IXR-H2 7220 IXR-H3 7220 IXR-D5
Number of Spine Nodes	Y	-	Specify the number of devices of the specified type to act as spine nodes.	An integer
Add Pod	Y	-	Indicates whether you are configuring a Pod, which is a subset of the fabric that can use a different hardware type for leaf nodes than the non-Pod subset. For more information about Pods, see Adding a second type of hardware for leaf nodes.	Enabled, Disabled If Enabled, the configuration you create is applied to the Pod subset of your fabric. If Disabled, the configuration is applied to the non-Pod subset.
Leaf Node Type	Y	-	Select a supported type of hardware to act as a leaf node. Note: When initially creating a fabric intent, you can only choose one hardware type to be used for all leaf nodes in the fabric. To use a second hardware type for some leaf nodes, you must first deploy the initial fabric intent and then create a new version that includes a pod. The pod represent a second set of leaf nodes within the same fabric which can be of a different hardware type. For more information about configuring fabrics with multiple hardware types for its leaves, see Adding a second type of hardware for leaf nodes.	7220 IXR-D2 7220 IXR-D3 7220 IXR-D2L 7220 IXR-D3L
Number of Leaf Nodes	Y	-	Specify the number of devices of the specified type to act as leaf nodes.	An integer
Node Type	-	Y	Select a supported type of hardware to act as a backbone node. The available values vary based on the "Is Border Leaf" selection.	7220 IXR-D2 7220 IXR-D2L 7220 IXR-D3 7220 IXR-D3L 7220 IXR-D5 7250 IXR-6 7250 IXR-10 7220 IXR-H2 7220 IXR-H3
Number of Nodes	-	Y	Specify the number of devices of the specified type to act as backbone nodes.	An integer
Dual Homing	-	-	A topology is generated where devices can connect to the network through two independent access points, where one point is the primary connection and the other point is activated in event of a failure.	Enabled, Disabled
Servers per Rack	-	-	The number of servers per rack in the fabric intent.	1-40 servers per rack for all templates
Number of Racks	-	-	The number of racks in the fabric intent. The maximum number of racks depends on the reference template selected.	Leaf Spine: 1-8 racks Chassis Spine: 1-20 racks Backbone: 1-30 racks Super Backbone: 1-40 racks
Edge Link Speed	Y	-	The data transfer speed from the access point to data center or computers.	1G, 10G, 25G, 40G, 50G, 100G, 200G, 400G
T1 Layer Uplink Speed	Y	-	The data transfer speed from computers or data center to the access point.	1G, 10G, 25G, 40G, 50G, 100G, 200G, 400G
Deploy Trigger Percentage	Y	Y	The percentage of fabric deployment for a fabric design intent to create a topology.	Has a fixed, automatically assigned value of 0% or 100% based on fabric type (Real or Digital Sandbox). This parameter cannot be edited.

Optional parameters

After choosing the required parameters, you can modify optional parameters to further customize the fabric intent.

Table 2. Optional parameters for fabric intents
Parameter	Description	Values/Range
Pool Configuration
ASN Pool Name	For manual fabric topologies only: can be set to any ASN pool that has been created as part of Network Resources.	By default this value is set to "Default", representing the default ASN pool created as part of the region.
Inter Switch Link Pool Name	For manual fabric topologies only: Identifies the pool of IP addresses that can be assigned to inter-switch links (ISLs) between devices in fabric intents throughout this region.	Can be set to any ISL pool that has been created as part of Network Resources. By default this value is set to "Default", representing the default ISL pool created as part of the region.
Management Pool Name	For manual fabric topologies only: Identifies the pool of IP addresses that will be assigned to the management interfaces of devices.	Can be set to any pool that has been created as part of Network Resources. By default this value is set to "Default", representing the default Out of Band Management pool created as part of the region.
DS Management network IP family	For a Digital Sandbox fabric intent only, allows you to specify whether the management network IP address pool should use IPv4 or IPv6 addresses.	IPv4 or IPv6
System Pool Name	For manual fabric topologies only: Identifies the pool of IP addresses that can be used to configure the router id of devices that are part of the fabric.	Can be set to any pool that has been created as part of Network Resources. By default this value is set to "Default", representing the default System pool created as part of the region.
Tier One Oversubscription parameters
Over Subscription Ratio	The ratio between the bandwidth of the downlink ports and the bandwidth of the uplink ports for the first layer of the fabric.	Ratio of numbers with a colon between the two numbers, for example 1:3
Tier Two Oversubscription parameters
Over Subscription Ratio	The ratio between the bandwidth of the downlink ports and the bandwidth of the uplink ports for the second layer of the fabric.	Ratio of numbers with a colon between the two numbers, for example 1:3

June 5, 2023