Trunk support on Local Director

Anyone know if the trunk (802.1q or ISL) is supported on LD 417G? I have found the following description on the release note but I can't find any info about configuring it.
"One two-port 1000BASE-SX Gigabit Ethernet interface card with SC connectors that support load balancing, link aggregation, and trunking (LocalDirector 417G only)"

Thanks a lot for this info.
I'm not happy but better that not know anything...
Any idea on when will be witten? Only to know when we could show something official to the customer.
Regards,
Fabio Chiesa

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