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Introduction
Get Started
play_arrow Apstra GUI
- Log in to Apstra GUI
- Reset Apstra GUI Admin Password
play_arrow Blueprints and Dashboard
- Create Datacenter Blueprint
- Blueprint Summaries and Dashboard
- Delete Datacenter Blueprint
play_arrow Analytics (Blueprints)
- Analytics Introduction
- play_arrow Dashboards
- play_arrow Anomalies
  - Anomalies (Analytics)
- play_arrow Widgets
- play_arrow Probes
- play_arrow Predefined Reports (Tech Preview)
- play_arrow Root Causes
  - Root Causes
play_arrow Staged (Datacenter Blueprints)
- Blueprint-Wide Search
- play_arrow Physical
- play_arrow Virtual
  - play_arrow Virtual Networks
  - play_arrow Routing Zones
  - Static Routes (Virtual)
  - Protocol Sessions (Virtual)
  - play_arrow Virtual Infrastructure
  - play_arrow Statistics
- play_arrow Policies
  - play_arrow Endpoints
  - Security Policies
  - Interface Policies
  - Routing Policies
  - Routing Zone (VRF) Constraints
  - play_arrow Routing Zone Policy (4.2.0)
    - Optimize Routing Zone Resource Usage (4.2.0)
- play_arrow Data Center Interconnect (DCI)
- play_arrow Catalog
  - play_arrow Logical Devices
    - Export Logical Device
  - play_arrow Interface Maps
    - Import Interface Map
    - Delete Interface Map (Blueprint)
  - play_arrow Property Sets
  - play_arrow Configlets
  - play_arrow AAA Servers
    - AAA Servers (Datacenter Blueprint)
  - play_arrow Tags
- play_arrow Tasks
  - Tasks (Datacenter) Staged
- play_arrow Connectivity Templates
- play_arrow Fabric Settings (4.2.1)
  - play_arrow Fabric Policy (4.2.1)
    - Update Fabric MTU (4.2.1)
    - Optimize Routing Zone Resource Usage (4.2.1)
  - play_arrow Severity Preferences (4.2.1)
    - Update Severity Preferences
- play_arrow Fabric Settings (4.2.0)
  - play_arrow Fabric Policy (4.2.0)
    - Enable IPv6 Applications
    - Update Fabric MTU (4.2.0)
  - play_arrow Virtual Network Policy (4.2.0)
    - Virtual Network Policy Introduction
    - Update Virtual Network Policy
  - play_arrow Anti-Affinity Policy (4.2.0)
    - Anti-Affinity Policy
  - play_arrow Validation Policy (4.2.0)
    - Update Validation Policy (Severity Preference)
- BGP Route Tagging
play_arrow Staged (Freeform Blueprints)
- Freeform Introduction
- play_arrow Blueprints
- play_arrow Physical
- play_arrow Resource Management
  - Resource Management Introduction (Freeform)
  - play_arrow Blueprint Resources
  - play_arrow Allocation Groups
    - Create Allocation Group (Freeform)
  - play_arrow Local Pools
    - Create Local Pool (Freeform)
    - Create Local Pool Generator (Freeform)
- play_arrow Catalog
  - play_arrow Config Templates
  - play_arrow Device Profiles
    - Import Device Profile (Freeform)
    - Delete Device Profile (Freeform Blueprint)
  - play_arrow Property Sets
  - play_arrow Tags
- play_arrow Tasks
  - Tasks - Staged (Freeform)
play_arrow Uncommitted (Blueprints)
- Uncommitted Introduction
- Commit / Revert Changes to Blueprint
play_arrow Active (Datacenter Blueprints)
- Active (Datacenter Blueprint)
- play_arrow Topology (Active)
- Nodes (Active)
- Links (Active)
- Racks (Active)
- Pods (Active)
- Query
- Anomalies (Service)
play_arrow Time Voyager (Blueprints)
- Time Voyager Introduction
- Roll Back Blueprint Revision
- Keep Blueprint Revision
- Change Number of Saved Blueprint Revisions
- Update Blueprint Revision Description
- Delete Blueprint Revision
play_arrow Devices
- Device Configuration Lifecycle
- play_arrow Managed Devices
- play_arrow System Agents
- play_arrow Pristine Config
  - Edit Pristine Config
  - Update Pristine Config from Device
- play_arrow Telemetry
  - Device Telemetry Services
  - All Telemetry Services
  - play_arrow Telemetry Service Registry
    - Service Registry
  - Telemetry Streaming
  - Route Anomalies for a Host - Example
  - Juniper Telemetry Commands
  - Cisco Telemetry Commands
  - Arista Telemetry Commands
  - Linux Server Telemetry Command
  - Debugging Telemetry
  - Extensible Telemetry Guide
- play_arrow Apstra ZTP
- play_arrow Device Profiles
play_arrow Design
- play_arrow Logical Devices
- play_arrow Interface Maps
- play_arrow Rack Types
- play_arrow Templates
- play_arrow Config Templates
  - Config Templates (Freeform Design)
- play_arrow Configlets (Datacenter)
- play_arrow Property Sets (Datacenter)
- play_arrow TCP/UDP Ports
- play_arrow Tags
play_arrow Resources
- Resources Introduction
- ASNs
- VNIs
- Integers
- IPv4 Addresses
- IPv6 Addresses
play_arrow Analytics
- play_arrow Apstra Flow
  - Apstra Flow Introduction
  - System Requirements
  - play_arrow Dashboards
    - Apstra Flow Dashboards
  - play_arrow Supported Flow Records
  - play_arrow Flow Enrichment
  - play_arrow Monitor Flow Data
    - Metrics
  - play_arrow Configuration Reference
  - play_arrow API
    - API Endpoints Options
  - play_arrow Additional Documentation
  - play_arrow Knowledge Base
play_arrow External Systems (RBAC Providers)
- play_arrow Providers
- play_arrow Provider Role Mapping
play_arrow Platform
- play_arrow User / Role Management
  - User / Role Management Introduction
  - play_arrow Users
  - play_arrow Roles
- play_arrow Security
- Syslog Configuration (Platform)
- Receivers (Platform)
- Global Statistics (Platform)
- Event Log (Audit Log)
- play_arrow Apstra VM Clusters
- play_arrow Developers
- play_arrow Technical Support
- Check Apstra Versions and Patent Numbers
Favorites & User
play_arrow Apstra Server Management
- Apstra Server Introduction
- Monitor Apstra Server via CLI
- Restart Apstra Server
- Reset Apstra Server VM Password
- Reinstall Apstra Server
- Apstra Database Overview
- Back up Apstra Database
- Restore Apstra Database
- Reset Apstra Database
- Migrate Apstra Database
- Replace SSL Certificate on Apstra Server with Signed One
- Replace SSL Certificate on Apstra Server with Self-Signed One
- Change Apstra Server Hostname
Apstra CLI Utility
play_arrow Guides
- 5-Stage Clos Architecture
- Juniper EVPN Support
- Intent-Based Analytics with apstra-cli Utility
- AOSOM-Streaming Guide
play_arrow References
- play_arrow Feature Matrix
  - Apstra 4.2.1 Feature Matrix
  - Apstra 4.2.0 Feature Matrix
- play_arrow Devices
- play_arrow Analytics
- Configlet Examples (Design)
- play_arrow Apstra CLI Commands
  - Apstra CLI Commands
- Apstra EVPN Support Addendum
- Apstra Server Configuration File
- Graph
- Juniper Apstra Technology Preview

list Table of Contents

English

Templates Introduction

Release: Juniper Apstra 4.2

date_range 07-Feb-24

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Templates are used to create blueprints. They define a network's policy intent and structure. The global catalog (Design > Templates) includes predefined templates based on common designs.

From the left navigation menu, navigate to Design > Templates to go to the templates table view. Many predefined templates are provided for you. Click a template name to see its details. You can create, clone, edit, and delete templates.

See the sections below for details on each type of template.

Rack-based Template

Rack-based templates define the type and number of racks to connect as top-of-rack (ToR) switches (or pairs of ToR switches). Rack-based templates include the following details:

Table 1: Rack-based Template Policies
Policy	Options
ASN Allocation Scheme (spine)	Unique - applies to 3-stage designs. Each spine is assigned a different ASN. Single - applies to 5-stage designs. All spine devices in each pod are assigned the same ASN, and all superspine devices are assigned another ASN.
Overlay Control Protocol	Defines the inter-rack virtual network overlay protocol in the fabric. Overlay control protocol on deployed blueprints can't be changed. Static VXLAN (renamed to Pure IP Fabric in Apstra version 4.2.1) - uses static VXLAN routing the Head End Replication (HER) flooding to distribute Layer 2 virtual network traffic between racks. MP-EBGP EVPN - uses EVPN family eBGP sessions between device loopbacks to exchange EVPN routes for hosts (Type 2) and networks (Type 5). Only homogeneous, single-vendor EVPN fabrics are supported. EVPN-VXLAN capabilities for inter-rack virtual networks are dependent on the make and model of network devices used. See Virtual Networks for more information. External systems must be connected to racks (not spine devices).
Spine to Leaf Links Underlay Type	IPv4 - uses addresses from IPv4 resource pools. IPv6 RFC-5549 - uses addresses from IPv6 resource pools. Not supported when overlay control protocol is MP-EBGP EVPN. IPv6-IPv6 Dual Stack

Table 2: Rack-based Template Structure
Structure	Options
Rack Types	Type of rack and number of each selected rack type. ESI-based rack types in rack-based templates without EVPN are invalid.
Spines	Spine Logical Device and Count - Type and number of spine logical devices Links per Superspine Count and Speed - Number and speed of links to any superspine devices Tags - User-specified. Select tags from drop-down list generated from global catalog or create tags on-the-fly (which then become part of the global catalog). Useful for specifying external routers. Tags used in templates are embedded, so any subsequent changes to tags in the global catalog do not affect templates.

Pod-based Template

Pod-based templates are used to create large, 5-stage Clos networks, essentially combining multiple rack-based templates using an additional layer of superspine devices. The following images show examples of 5-stage Clos architectures built using pod-based templates (Superspine links are not shown for readability purposes). See 5-Stage Clos Architecture for more information.

Single plane, dual superspine4 x plane, 4 x superspine

Pod-based templates include the following details:

Table 3: Pod-based Template Policies
Policy	Option
Spine to Superspine Links	IPv4 - uses addresses from IPv4 resource pools. IPv6 RFC-5549 - uses addresses from IPv6 resource pools. Not supported when overlay control protocol is MP-EBGP EVPN. IPv4-IPv6 Dual Stack
Overlay Control Protocol	Defines inter-rack virtual network overlay protocol used in the fabric. Overlay control protocol on deployed blueprints can't be changed. Static VXLAN (renamed to Pure IP Fabric in Apstra version 4.2.1) - uses static VXLAN routing the Head End Replication (HER) flooding to distribute Layer 2 virtual network traffic between racks. MP-EBGP EVPN - uses EVPN family eBGP sessions between device loopbacks to exchange EVPN routes for hosts (Type 2) and networks (Type 5). Only homogeneous, single-vendor EVPN fabrics are supported. EVPN-VXLAN capabilities for inter-rack virtual networks are dependent on the make and model of network devices used. See Virtual Networks for more information. External systems must be connected to racks (not spine devices).

Table 4: Pod-based Template Structure
Structure	Options
Pods	Type of rack-based template and number of each selected template
Superspines	Superspine Logical Device and Count Plane Count and Per Plane Count - Number of planes and number of superspine devices per plane Tags - User-specified. Select tags from drop-down list generated from global catalog or create tags on-the-fly (which then become part of the global catalog). Useful for specif.ying external routers. Tags used in templates are embedded, so any subsequent changes to tags in the global catalog do not affect templates.

Collapsed Template

Collapsed templates allow you to consolidate leaf, border leaf and spine functions into a single pair of devices. A full mesh topology is created at the leaf level instead of at leaf-spine connections. This spineless template uses L3 collapsed rack types. Collapsed templates have the following limitations:

No support for upgrading collapsed L3 templates to L3 templates with spine devices (To achieve the same result you could move devices from the collapsed L3 blueprint to an L3 Clos blueprint.)
Collapsed L3 templates can't be used as pods in 5-stage templates.
You can't mix vendors inside redundant leaf devices - the two leaf devices must be from the same vendor and model.
Leaf-to-leaf links can't be added, edited or deleted.
Inter-leaf connections are limited to full-mesh.
IPv6 is not supported.

Collapsed templates include the following details:

Table 5: Collapsed Template Policies
Policy	Options
Overlay Control Protocol	Defines the inter-rack virtual network overlay protocol used in the fabric. Overlay control protocol on deployed blueprints can't be changed. Static VXLAN (renamed to Pure IP Fabric in Apstra version 4.2.1) - uses static VXLAN routing the Head End Replication (HER) flooding to distribute Layer 2 virtual network traffic between racks. MP-EBGP EVPN - uses EVPN family eBGP sessions between device loopbacks to exchange EVPN routes for hosts (Type 2) and networks (Type 5). Only homogeneous, single-vendor EVPN fabrics are supported. EVPN-VXLAN capabilities for inter-rack virtual networks are dependent on make and model of network devices used. See Virtual Networks for more information. External systems must be connected to racks (not spine devices).

Table 6: Collapse Template Structure
Structure	Options
Rack Types	Type of L3 collapsed rack and number of each selected rack type.
Mesh Links Count and Speed	Defines the link set created between every pair of physical devices, including devices in redundancy groups (MLAG / ESI). These links are always physical L3. No logical links are needed at the mesh level.

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