Multi-Queue Requirements and Limitations

• Multi-Queue An acceleration feature on Security Gateway that configures more than one traffic queue for each network interface. Multi-Queue assigns more than one receive packet queue (RX Queue) and more than one transmit packet queue (TX Queue) to an interface. Multi-Queue is applicable only if SecureXL is enabled (this is the default). Acronym: MQ. only supports Security Gateways with two or more CPU cores.

• Multi-Queue only supports interfaces that use these drivers:

  Driver	Max Speed	Description
  igb	1 Gbps	Intel® Network Adapter Driver for PCIe 1 Gigabit Ethernet Network
  ixgbe	10 Gbps	Intel® Network Adapter Driver for PCIe 10 Gigabit Ethernet Network
  i40e	40 Gbps	Intel® Network Adapter Driver for PCIe 40 Gigabit Ethernet Network
  i40evf	40 Gbps	Intel® i40e driver for Virtual Function Network Devices
  mlx5_core	40 Gbps	Mellanox® ConnectX® mlx5 core driver
  ena	20 Gbps	Elastic Network Adapter in Amazon® EC2
  virtio_net	10 Gbps	VirtIO paravirtualized device driver from KVM®
  vmxnet3	10 Gbps	VMXNET Generation 3 driver from VMware®

• Multi-Queue does not use network interfaces that are currently in the down state.

• The number of traffic queues is limited by the number of CPU cores and the type of interface driver:

  Interface Driver	Maximal Number of RX Queues
  igb	2-16 (depends on the interface)
  ixgbe	16
  i40e	64
  i40evf	4
  mlx5_core	60
  ena	Configured automatically
  virtio_net	Configured automatically
  vmxnet3	Configured automatically

• In a Cluster Two or more Security Gateways that work together in a redundant configuration - High Availability, or Load Sharing., you must configure all the Cluster Members in the same way.