RAINlink

RAINlink is ZNYX Networks software that enables Ethernet adapters and other chassis devices with sophisticated High Availability applications for Carrier Grade and Service Provider environments. The underlying technology is called RAIN -- Redundant Array of Independent Netports. RAINlink creates High Availability services for connection availability of 99.999% or better. Services powered by RAINlink include:

Failover -- Eliminates downtime when a network connection fails. Enabled by configuring a server and subnet with 2-port connectivity. Transparent failover takes as little as 10 milliseconds. Automatic failback occurs when connection is reestablished, with no reconfiguration or change of IP address required. Failover may be used with Multi-Homing.
Multi-Homing -- Allows one server to communicate with two subnets. Provides system security with logical separation of network traffic; devices on one subnet are invisible to those on another subnet. Multi-Homing may be used with Failover.
Fault Tolerance -- Prevents single point of failure when using Failover and Multi-Homing by configuring server with two adapters, each communicating with both subnets. RAINlink allows simultaneous use of several ZNYX Networks adapters for complex network configurations.
Link Aggregation -- Combines two or more network links into a bonded trunk, which aggregates throughput from the separate connections for more bandwidth. In a CPU-to-CPU configuration, RAINlink Link Aggregation cuts transmission time in half -- with automatic failover and failback. Communications continue even if one channel fails in a multi-link trunk. Latter feature is called Load Balancing.
Load Balancing -- RAINlink load balances traffic across any trunk or groups of trunks to prevent interrupting network applications and services.

Operating System	RAINlink Embedded into driver	Maximum Links/Ports	Maximum Trunks/Failover Groups
Solaris		16	8
LynxOS		16	8
pSOS+		16	8
VxWorks		16	8
BSDI		16	8
FreeBSD		16	8
Linux		16	8