Hardware requirements and performance [Документация VAS Experts]
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    •   Stingray Service Gateway by VAS ExpertsGetting startedHardware requirements and performance

    This is an old revision of the document!

    Hardware requirements and performance

    Minimum Requirements

    SSG software runs on general purpose computers. However, due to deep code optimization and integration with the hardware, the hardware configuration has to meet some specific requirements:

    The CPU and RAM parameters are determined according to the required bandwidth. We advise you to look through the Recommended Requirements and agree on the choice of software server with VAS EXPERTS's representatives or our partners to install the software.
    CPU One CPU supporting SSE 4.2 staring from Intel Nehalem and AMD EPYC Zen2 with 4 or more processor cores, 2.5 Ghz clockspeed and above.
    !SSG only works with one processor!
    RAM Not less than 8Gb, it is necessary to install memory modules in all processor channels on the motherboard
    SSD Disks To host the OS and SSG software, it is necessary to use 2 disks with a capacity of 256GB or more, combined in RAID 1 (mirror). It is necessary to use a hardware RAID controller. NVMe SSD disks (in M.2, U.2 form factor or PCI Express expansion cards) are a priority. If the platform does not support this type of media, we recommend using SATA/SAS SSD (DWPD>=1) instead of HDDs
    Number of network portsAt least 3 ports are required: one for the remote management using SSH (any kind of chipset), the two other to process network traffic (network cards with DPDK support)
    Supported network cardsIt is recommended to use only tested cards on Intel chipsets 1) with 2, 4 or 6 ports2):

    1GbE interfaces
    - e1000 (82540, 82545, 82546)
    - e1000e (82571, 82572, 82573, 82574, 82583, ICH8, ICH9, ICH10, PCH, PCH2, I217, I218, I219)
    - igb (82573, 82576, 82580, I210, I211, I350, I354, DH89xx)
    - igc (I225)

    10GbE interfaces
    - ixgbe (82598, 82599, X520, X540, X550)
    - mlx5

    25GbE interfaces
    - i40e (XXV710)
    - mlx5

    10GbE and 40GbE interfaces, 40GbE port can handle no more than 30G, it is recommended to use only one port on a dual-port card.
    - i40e (X710, XL710, X722, XXV710)

    100GbE interfaces, 100GbE port can handle no more than 50G, it is recommended to use only one port on a dual-port card, a motherboard with PCIe 4.0 x16 slots is required
    - mlx5 (Mellanox ConnectX-4, ConnectX-5, ConnectX-6)
    - ice (Intel E810) - we do not recommend it, there are problems in intel firmware on the card: it does not pass GRE tunnels

    For BRAS PPPoE, only Intel E810 100G cards must be used (Mellanox cards do not have RSS support for PPPoE traffic)
    Bypass support Bypass is supported for Silicom cards 100GbE, 40GbE, 10GbE and 1GbE
    SSG platform operates only under control of the VEOS (VAS Experts Operating System)

    Server performance is determined based on peak traffic volume value on the channel. When choosing a CPU, RAM, it is necessary to take into account that the calculation is presented for asymmetric traffic. This means that when installing "in-line" for peak incoming traffic of 12 Gbps (Max IN traffic), you need to purchase a SSG-20 license and a platform with parameters: 1 CPU 16 cores and more, RAM 64GB and more.

    Equipment calculation depending on traffic and functionality
    Total traffic (in+out)
    Gbps     		Max incoming traffic
    Gbps     		Stingray SG Version Number of cores per CPU
    with a frequency of 2.5 GHz     		RAM, GB
    necessary to install memory modules in all processor channels on the motherboard     		Minimal number
    of physical ports     		Number of Public IPs
    in a NAT pool     		Packet per second in Million
    base CPU frequency from 2,5GHz
    2 1,5 SSG-2 4 12 4x1G, 2x10G 100 1M pps
    4 3 SSG-4 4 16 6x1G, 2x10G 500 1,5M pps
    6 5 SSG-6 6 32 2x10G 1000 3-4M pps
    10 8 SSG-10 12 48 2x10G 2000 6M pps
    20 15 SSG-20 16 64 4x10G 3000 9M pps
    40 30 SSG-40 18 Intel 6242R 96 6x10G, 4x25G, 4x40G, 2x100G 4000 12M pps
    60 45 SSG-60 28 Intel 6258R, Intel 5320,
    32 AMD 7502P     		128 10x10G, 4x25G, 4x40G, 2x100G 5000 15M pps
    80 60 SSG-80 64 AMD 7702P 160 12x10G, 6x25G, 6x40G, 4x100G 6000 18M pps
    100 75 SSG-100 64 AMD 7702P 192 20x10G, 8x25G, 8x40G, 4x100G 7000 20M pps
    120 90 SSG-120 64 AMD 9534 256 20x10G, 8x25G, 8x40G, 4x100G 10000 22M pps
    160 120 SSG-160 96 AMD 9654 384 24x10G, 16x25G, 10x40G, 6x100G 12000 30M pps
    240 180 SSG-240 128 AMD 9654 512 16x25G, 10x40G, 8x100G 15000 45M pps
    Important when selecting a server:
    1.The Stingray SG uses only one processor because of the impact on performance of NUMA for dual-processor configurations.
    2.When choosing a CPU, it is necessary to take into account the base frequency , the higher the frequency, the greater the performance.
    3.When using Stingray SG as L2 BRAS (DHCP/ARP/PPPoE authorization) it is necessary to take into account the additional load associated with the analysis of each packet by additional parameters. This leads to an increase in CPU power consumption. In such cases it is recommended to increase the number of CPU cores by 30%. For a SSG-40 license implement the SSG-60 platform.
    4.The use of 100G interfaces is possible only when the platform is delivered through a partner in order to control the server specification.
    5.Using the option Common and Virtual Channels Policing involves additional internal locks, which reduces system performance to 40G of total traffic, regardless of the number of cores.
    6.Every 256 public IP addresses in NAT Pool (/24 subnet) consume 5GB of RAM. /22 = 10GB, /21 = 20GB, /20 = 80GB, /19 = 160GB.

    Requirements for Installation on a Virtual Machine

    SSG software can be installed on a Virtual Machine (VM).
    VM has the following requirements:

    • Hypervisor: VMware, KVM
    • CPU of at least 4 cores with a frequency of 2.5 GHz
    • RAM of 8 Gb and more
    • Storage space of 20 Gb and more

    Check VM preparation for test:

    OS CentOS: cat /etc/redhat-release 

    CentOS Linux release 8.5.2111 (Core)

    OS VEOS: cat /etc/*releas* or cat /etc/system-release 

    VEOS release 8.7 (Sakhalin)



    RAM: cat /proc/meminfo 

    MemTotal:       16254744 kB

    Checking whether all cores belong to one CPU: grep "physical id" /proc/cpuinfo |sort -u 

    physical id     : 0

    Number of cores: grep "cores" /proc/cpuinfo |sort -u 

    cpu cores       : 4

    There must be at least three interfaces (two for traffic and one for administration): lspci | grep Ethernet 

    0b:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01)
13:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01)
1b:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01)
    For SSG to work in a virtual environment, in the Security settings of virtual networks in which in_dev and out_dev are composed, you need to enable:
    • Promiscuous mode Accept
    • MAC address changes Accept
    • Forged transmits Accept

    System requirements for Soft-Router

    Depending on the amount of routing information, an additional 4-8 GB of memory will be required.

    1)
    if your card is not included in the list of tested, then software adaptation, additional development and testing will be required
    2)
    We do not provide a specific list of models, as there is a wide choice of manufacturers of these cards: from Intel to Huawei, HP, Dell, Silicom, Advantech, Lanner, Supermicro, Silicom and dozens of others, as well as the motherboard built-in cards or SOC.