Flexible, software-defined networking that connects your cloud workloads — from simple tenant networks to complex multi-tier topologies with distributed routing and policy enforcement.Documentation Index
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Polystack Networking
User Guide
Create networks, subnets, routers, and security groups. Allocate floating IPs and
build tenant network topologies from the Dashboard or CLI.
Admin Guide
Configure provider networks, VLAN and VXLAN segmentation, SDN agents, QoS policies,
and advanced routing for your cluster.
CLI Reference
openstack network, openstack router, and openstack security group commands for
managing all networking resources from the command line.Related Services
Polystack Networking integrates tightly with Compute, Block Storage, and Load Balancer
to deliver end-to-end connectivity for your workloads.
Key Features
Software-Defined Networking
Fully programmable virtual network fabric. Provision isolated tenant networks,
shared provider networks, and routed topologies — all through a single API.
Distributed Routing
Distribute L3 routing across compute nodes to eliminate centralized bottlenecks
and deliver high-throughput east-west connectivity for modern application architectures.
Floating IPs
Map public IP addresses dynamically to private instances. Associate, disassociate,
and reassign without downtime — ideal for blue-green deployments and failover.
Security Groups
Stateful, per-port firewall rules enforced at the hypervisor level. Define ingress
and egress policies with protocol, port, and CIDR granularity.
QoS Policies
Apply bandwidth limits and burst controls to individual ports or networks. Enforce
service-level guarantees and prevent noisy-neighbour interference.
VLAN and VXLAN Segmentation
Segment workloads with hardware-backed VLAN isolation or scale-out VXLAN overlays
that support tens of thousands of isolated tenant networks.
VPN as a Service
IPsec site-to-site VPN tunnels for secure inter-site connectivity. Establish encrypted
tunnels between Polystack tenant networks and remote sites or on-premises data centers.
Available with Polystack.
Networking Components
| Component | Description |
|---|---|
| SDN API | RESTful endpoint for all network operations — networks, subnets, ports, routers, and policies |
| L2 Agent | Manages virtual switching on each compute node — programs virtual ports and enforces segmentation |
| L3 Agent | Handles routing between subnets, NAT for floating IPs, and external gateway connectivity |
| DHCP Agent | Provides IP address assignment and DNS configuration for tenant subnets |
| Metadata Agent | Delivers instance metadata over the network to instances at boot time |
| Security Service | Enforces stateful firewall rules and anti-spoofing policies per port |
Related Services
Polystack Compute
Virtual machine instances that connect to tenant networks and floating IPs
Polystack Block Storage
Persistent volumes that mount inside compute instances on your networks
Polystack Load Balancer
Distribute traffic across instances using networking infrastructure
Polystack Identity
Project-scoped authentication and RBAC for networking resources
Polystack High Availability
HA routers and redundant DHCP agents for network resilience
Web Console
Configure provider networks, VLAN ranges, and SDN agents during deployment
Getting Started
Authentication
Configure Dashboard access and CLI credentials before managing networking resources
Compute User Guide
Launch instances and connect them to networks using security groups and floating IPs