Concepts — Private Backbone
The Private Backbone is built on two complementary pillars: regional private networks (VPLS technology) and Internet connectivity (public addressing, BGP, Anti-DDoS).
1. Private Networks (VPLS)
Extended L2 Architecture
Cloud Temple offers private networks based on VPLS (Virtual Private LAN Service) technology. This technology creates a transparent, extended Layer 2 (Ethernet) network between all availability zones in a region.
The underlying MPLS network provides:
- Inter-service connectivity up to 100 Gbps
- Transparent point-to-multipoint L2 extension for clients
- Diversified paths for high availability
Regional Private VLANs
Each virtual network is an isolated private VLAN, propagated across clusters in the region:
- Customizable naming, free IP addressing (client chooses their addressing plan)
- 802.1q (VLAN tagging) and QinQ / 802.1ad (double tagging) support
- Trunk mode option: aggregate multiple VLANs over a single physical link
- Selective propagation: choose target clusters (limit of 20 networks per action)
Inter-Tenant Sharing
A private network can be shared between multiple tenants within the same organization:
- Activation via the Cloud Temple console
- Tenant list filtered by organization and permissions
- Graphical view of propagation across clusters and hypervisors
External Connectivity
Physical 1 Gbps / 10 Gbps ports (fibre or copper) allow connection of:
- Network equipment housed in the common zone (firewalls, routers)
- IPSEC, MPLS or fibre links to on-premise sites
- Third-party operators
These ports are subject to a service request and are delivered on quote.
Dedicated Circuits
For high-bandwidth requirements with guaranteed throughput:
| Type | Throughput | Commitment |
|---|---|---|
| Ethernet 1G | 1 Gbps | 36 months |
| Ethernet 10G | 10 Gbps | 36 months |
| Fiber Channel 8G | 8 Gbps | 36 months |
| Fiber Channel 16G | 16 Gbps | 36 months |
All dedicated circuits are automatically delivered on two diversified optical paths.
2. Internet Access & Public Addressing
Public IP Address Blocks
Cloud Temple provides blocks of public IP addresses registered with RIPE:
- IPv4: blocks from 1 address
- IPv6: blocks from /64 (64 addresses)
These addresses allow you to expose your services on the Internet from Cloud Temple's infrastructure.
Reverse DNS Management (PTR)
For each public IP address, you can configure a custom PTR record via the Cloud Temple console, enabling reverse DNS resolution for your services.
Native Anti-DDoS
Anti-DDoS protection is natively included on Cloud Temple Internet access. It protects your exposed services against volumetric attacks without any additional configuration.
BGP & Advanced Routing
For organizations requiring fine-grained routing control:
- eBGP peering available to announce your own IP prefixes
- Configuration of route servers and BGP neighbors
- IPv4 and IPv6 prefix support
- Compatible with your firewall of choice (FortiGate, pfSense, etc.)
Internet Use Cases
- Exposing web, API, or application services on the Internet
- Internet access for housed equipment
- Architectures with a dedicated firewall managing inbound/outbound flows
- BGP peering for organizations with their own AS
3. Private Backbone vs VPC Comparison
| Criterion | Private Backbone | VPC |
|---|---|---|
| Network level | L2 (VPLS) | L3 (routing) |
| Management | Manual (expert) | Automated (cloud-native) |
| Topology control | Total | Guided |
| Use case | Complex hybrid architectures | Cloud-native applications |
| Flexibility | Maximum | Cloud standard |
For a simplified and automated network experience, choose the VPC offering.
Private Backbone is recommended if you need L2 extension or fine-grained network topology control.