1. Overview

Thank you for choosing 6WIND Turbo CG-NAT.

Turbo CG-NAT is a ready-to-use high performance software routing appliance.

Turbo CG-NAT provides Service Providers, Cloud and Content Providers, and Enterprises the best price/performance ratio when transitioning from hardware to software based appliances.

Turbo CG-NAT can be quickly installed on x86 servers in bare metal or virtual machine environments.

This document will help you get started with your new product. It provides an overview as well as detailed installation and startup instructions.

1.1. Features

Turbo CG-NAT offers:

  • Linear performance scalability with the number of cores deployed
  • Full-featured data plane networking with fast path protocols
  • High performance control plane
  • CLI management
  • NETCONF management
  • High performance input/output (I/O) leveraging DPDK with multi-vendor NIC support
  • Bare metal and virtual environment support, including KVM, VMware and AWS

1.1.1. CG-NAT

  • NAT44
  • Port Assignment
    • Random or parity
    • Port Block Allocation (PBA)
    • Per user/per CPE session limiter
  • IP Pool Management
    • Paired pooling
    • IP pool resize
  • Logging
    • Port batching
    • Syslog
  • ALG support
  • Hairpinning
  • Endpoint-Independent Mapping and Filtering
  • Address and Port Dependent Mapping and Filtering

1.1.2. Routing

  • BGP, BGP4+
  • OSPFv2, OSPFv3
  • RIP, RIPng
  • Cross-VRF
  • Static Routes
  • ECMP
  • PBR
  • MPLS LDP (beta)
  • BGP L3VPN (beta)
  • BGP Flowspec

1.1.3. Layer 2 and Encapsulations

  • GRE
  • VLAN (802.1Q, QinQ)
  • LAG (802.3ad, LACP)
  • Ethernet Bridge

1.1.4. IP Networking

  • IPv4 and IPv6
  • VRF
  • IPv4 and IPv6 Tunneling
  • NAT

1.1.5. Security

  • Access Control Lists
  • Unicast Reverse Path Forwarding

1.1.6. QoS

  • Rate limiting per interface, per VRF

1.1.7. IP Services

  • DHCP v4 client
  • DHCP v4 server
  • DHCP v4 relay
  • DNS client
  • DNS proxy
  • NTP

1.1.8. Management/Monitoring

  • SSHv2
  • CLI
  • SNMP
  • LLDP
  • Role-Based Access Control with AAA (TACACS)
  • Syslog
  • sFlow
  • KPIs

1.1.9. System

  • Control Plane Protection

1.1.10. High Availability

  • VRRP

1.2. System Requirements

  • Bare metal or VM (KVM, VMware, AWS)
  • Virtio vNIC, VMXNET3, PCI passthrough and SR-IOV
  • Supported processors
    • Intel Xeon E5-1600/2600/4600 v2 family (Ivy Bridge EP)
    • Intel Xeon E5-1600/2600/4600 v3 family (Haswell EP)
    • Intel Xeon E5-1600/2600/4600 v4 family (Broadwell EP)
    • Intel Xeon E7-2800/4800 v2 family (Ivy Bridge EX)
    • Intel Xeon E7-2800/4800 v3 family (Haswell EX)
    • Intel Xeon E7-4800/8800 v4 family (Broadwell)
    • Intel Xeon Platinum/Gold/Silver/Bronze family (Skylake)
    • Intel Atom C3000 family (Denverton)
    • Intel Xeon D family
  • Supported Ethernet NICs
    • Intel 1G 82575, 82576, 82580, I210, I211, I350, I354 (igb)
    • Intel 10G 82598, 82599, X520, X540 (ixgbe)
    • Intel 10G/40G X710, XL710, XXV710 (i40e)
    • Mellanox 10G/25G/40G/50G/100G Connect-X 4/5 (mlx5)
    • Broadcom NetExtreme E-Series (bnxt)
  • Memory footprint (RAM): Turbo CG-NAT requires at least 2GB of RAM. Default capabilities are automatically adjusted to the amount of RAM available.

    The maximum numbers for NAT entries, CPEs (users), conntracks (sessions), blocks and block sizes are defined in the configuration. These capabilities can be adjusted to adapt to the amount of memory available in the system.

    The following table shows a list of different capability combinations and the corresponding memory requirement. This is empirical and may have to be tuned according to your use case.

    Max conntracks Max nat entries Max cpe Max blocks Required memory
    1M 1M 10K 80K 5 GB
    2M 2M 20K 80K 6 GB
    4M 4M 20K 80K 8 GB
    8M 8M 20K 80K 12 GB
    16M 16M 20K 80K 24 GB
    30M 30M 20K 80K 32 GB

    See also

    Fast path limits configuration to tune these capabilities.

  • CPU: Turbo CG-NAT requires at least 2 CPU cores.

  • Storage: Turbo CG-NAT requires at least 1GB of storage space; 8GB are recommended to manage several images and store configuration and log files.