Terms

Affinity

The assignment of a specified process, Firewall instance, VSX Virtual System, interface or IRQ with one or more CPU cores.

CoreXL

A performance-enhancing technology for Security Gateways on multi-core processing platforms.

Firewall Instance

On a Security Gateway with CoreXL enabled, the Firewall kernel is replicated multiple times. Each replicated copy, or firewall instance, runs on one processing core. These instances handle traffic concurrently, and each instance is a complete and independent inspection kernel.

IPv4

Internet Protocol Version 4 IP address. A 32-bit number - 4 sets of numbers, each set can be from 0 - 255.

IPv6

Internet Protocol Version 6 IP address. 128-bit number - 8 sets of hexadecimal numbers, each set can be from 0 - ffff.

IRQ Affinity

A state of binding an IRQ to one or more CPUs.

Multi-queue

An acceleration feature that lets you assign more than one packet queue and CPU to an interface.

Rx Queue

Receive packet queue

SND

Secure Network Distributor. A CPU that runs SecureXL and CoreXL.

Traffic

The flow of data between network resources.

Tx queue

Transmit packet queue