Appendix: Fabric intent parameters
This appendix describes the fabric intent parameters in the Fabric Services System. When creating a new fabric intent, you can modify these parameters to fine-tune the fabric intent design. You must initially enter some required parameters, then you can modify optional parameters to further customize the fabric intent.
Required parameters
Required parameters (fabric intent) 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.
|
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 |
|
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
on the Regions icon ( |
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:
|
|
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 |
|
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. |
7220 IXR-D2 7220 IXR-D2L 7220 IXR-D3 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 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. |
) 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.Optional parameters
After choosing the required parameters, you can modify optional parameters to further customize the fabric intent.Optional parameters (fabric intent) defines the optional fabric intent parameters and the values that can be modified.
Parameter |
Description |
Values/Range |
|---|---|---|
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 |
Mgmt Traffic QoS Profile parameters |
||
Dscp All Mgmt |
QoS priority set to all DSCP management packets. |
BESTEFFORT, LOPRIORITY, MIPRIORITY, HIPRIORITY This field is currently read-only. |
Tos All Mgmt |
QoS priority set to all ToS management packets. |
BESTEFFORT, PRIORITY This field is currently read-only. |
Dscp gNMI |
QoS priority set to all DSCP gNMI packets. |
BESTEFFORT, LOPRIORITY, MIPRIORITY, HIPRIORITY This field is currently read-only. |
Dscp Img Download |
QoS priority set to DSCP image downloads either FTP or HTTP-based. |
BESTEFFORT, LOPRIORITY, MIPRIORITY, HIPRIORITY This field is currently read-only. |
Dscp S Flow |
QoS priority set to DSCP sFlow packets. |
BEST_EFFORT, LOPRIORITY, MIPRIORITY, HIPRIORITY This field is currently read-only. |
Dscp IP Fix |
QoS priority set to DSCP IP fix packets. |
BESTEFFORT, LOPRIORITY, MIPRIORITY, HIPRIORITY This field is currently read-only. |
Uplink parameters |
||
Uplink Speed |
The uplink speed for a leaf-spine fabric. |
1G, 10G, 25G, 40G, 50G, 100G, 200G, 400G |
Unicast Cp |
The type of unicast routing protocol used in the network topology. |
BGP, OSPF, ISIS This field is currently read-only. |
Multicast Cp |
The type of multicast routing protocol used in the network topology. |
None, PIMSM, PIMSSM, PIMBDIR This field is currently read-only. |
Global Configuration parameters |
||
Enable FTP |
Enables the File Transfer Protocol on the nodes in this fabric. |
Enabled, Disabled |
NTP |
Specifies one or more Network Time Protocol (NTP) servers. Adding one or more NTP server IP addresses enables the system NTP client on the node, and is used for system clock synchronization. |
IP address of one or more NTP servers |