HP StorageWorks Fabric OS 6.x administrator guide (5697-0015, May 2009)

380 Administering ISL Trunking
Trunking over extended fabrics
In addition to the criteria listed in ”Standard trunking criteria” on page 374, observe the following criteria
for trunking over extended fabrics:
• ISL Trunking over extended fabrics is supported on switches running Fabric OS 4.4.0 and later.
• Extended Fabrics and ISL Trunking licenses are required on all participating switches.
• The vc_translation_link_init parameter must be set the same on all ports in an extended
trunk.