Information About Multitenant WAN Edge Devices
As a service provider managing a multitenant Cisco Catalyst SD-WAN deployment, you may wish to deploy a multitenant WAN edge device in the overlay network to serve as a shared gateway for traffic belonging to multiple tenants. For example, you can deploy such a shared gateway in each regional point of presence (PoP). You can carry inter-region traffic belonging to multiple tenants through these shared gateways and the transport backbone linking the PoPs.
Multitenant WAN edge devices isolate traffic belonging to different tenants by mapping a tenant service VPN (referred to as tenant VPN) to a device VPN (also referred to as the device VRF). Cisco SD-WAN Manager performs the mapping between the tenant and device VPNs when you onboard a tenant on a multitenant WAN edge device.
Multitenant WAN edge devices establish control connections with the Cisco SD-WAN Validator nodes specified in the bootstrap configuration, and then connect to nodes in the Cisco SD-WAN Manager cluster. When you onboard a tenant to a multitenant WAN edge device, the device establishes control connections to the Cisco SD-WAN Controller assigned to the tenant.
The service provider must deploy, configure, and manage multitenant WAN edge devices. The devices and their states are displayed only in the Cisco SD-WAN Manager provider view. The provider, acting on behalf of the tenant, must deploy, configure, and manage single-tenant WAN edge devices owned by a tenant. The devices and their states are displayed in the tenant view or the provider-as-tenant view. When a tenant is onboarded to a multitenant WAN edge device, the multitenant WAN edge device can interoperate with single-tenant WAN edge devices owned by the tenant and other multitenant WAN edge devices to which the tenant is onboarded.
Resource Profiles (Tiers)
When you onboard many tenants on a multitenant WAN edge device, you may need to distribute the limited device resources among the tenants to ensure fair usage of resources or to implement different service-level agreements (SLAs). A tier lets you define and limit how much of each device resource a tenant assigned to the tier can consume. After creating a tier, when you onboard a tenant, you assign a tenant to a particular tier to apply the resource-usage limits to the tenant.
Usage Notes
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After you create a tier, you cannot modify the device-resource-usage limits specified in the tier. To apply a different set of limits to tenants, you must create a new tier and assign the relevant tenants to the new tier.
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You can delete a tier only when no tenants are assigned to it.
Resource Usage Limits in Resource Profiles (Tiers)
Resource Usage Limit |
Description |
Available From |
---|---|---|
Number of VPNs |
Maximum number of tenant VPNs that can be created for a tenant belonging to the tier. Cisco SD-WAN Manager enforces the limit when you create a new tenant VPN for a tenant.
|
Cisco IOS XE Release 17.8.1 and Cisco vManage Release 20.8.1 |
Route-limit |
The number of IPv4 unicast and IPv6 unicast routes that can be created for a tenant belonging to the tier. Route limit on a tenant is the sum of routes from all VRFs. |
Cisco IOS XE Catalyst SD-WAN Release 17.10.1a Cisco vManage Release 20.10.1 |
TLOC |
TLOC allows you to map transport interfaces to tenants. At least one TLOC needs to be selected per tier and you can include up to 16 TLOCs in a tier. |
Cisco IOS XE Catalyst SD-WAN Release 17.10.1a Cisco vManage Release 20.10.1 |
NAT limit |
The maximum limit on the number of NAT translations per tenant. Once the maximum limit has reached for a tenant, the packets are dropped and further translations are not allowed. |
Cisco IOS XE Catalyst SD-WAN Release 17.12.1a Cisco Catalyst SD-WAN Manager Release 20.12.1 |
Benefits of Multitenant WAN Edge Devices
As a managed service provider, by deploying multitenant WAN edge devices, you can
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reuse the edge devices and the interconnecting transport backbone to serve multiple tenants
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lower capital and operational expenditure
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provide faster access to tenants to shared resources, SaaS, and IaaS through the shared transport backbone
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manage tenant association with the devices, tenant-specific policies, and QoS requirements with Cisco SD-WAN Manager as the unified management interface