Ethernet Fabric (VDX, CNA)

ISL Trunking for Brocade VCS Fabrics

by on ‎04-10-2014 10:53 AM (1,731 Views)

The Brocade® VCS® fabrics utilize hardware-based ISL Trunking to provide high-performance, high-throughput Inter-Switch Links (ISLs), to simplify interconnect configuration, to provide automatic link failover with no interruption of traffic on unaffected links, and to provide plug-andplay fabric scalability. Instead of manually configuring Link Aggregation Groups (LAGs) on individual ports on multiple switches, Brocade VCS fabrics automatically form trunks when multiple ISL connections are added between switches.




  • Combines up to 16 Inter-Switch Links (ISLs) into a single logical trunk that provides up to 160 Gigabits per second (Gbps) data transfers (with 10 Gbps solutions)
  • ISL on each 10 GbE breakout of a 40 GbE port
  • Optimizes link usage by evenly distributing traffic across all ISLs at the frame level in hardware
  • Maintains in-order delivery to ensure data reliability
  • Helps ensure VCS fabric reliability and availability even if a link in the trunk fails
  • Simplifies VCS fabric management by reducing the number of ISLs required