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ISL Trunking delivers high performance enhanced trunking capabilities by aggregating up to four ISLs into a single logical 8 Gb Fibre Channel link. This license logically groups up to four e-ports to provide a high bandwidth Trunk between two switches. The switch operating system views the Trunk as a single, high bandwidth resource (up to 8 Gb) when routing connections between switches. Connections are load-balanced across the individual links, which comprise the logical trunk group. Each 16-port switch can have four separate 4-port Trunk groups. The result is improved performance, increased high availability, and simplified network design and management.