Dmitry
There does seem to be conflicting information. The link you provide does say they are supported but looking at the config guide it says -
Restrictions for VLANs
The following are restrictions for VLANs:
- The switch supports per-VLAN spanning-tree plus (PVST+) or rapid PVST+ with a maximum of 128 spanning-tree instances. One spanning-tree instance is allowed per VLAN.
- The switch supports IEEE 802.1Q trunking methods for sending VLAN traffic over Ethernet ports.
- Configuring an interface VLAN router's MAC address is not supported. The interface VLAN already has an MAC address assigned by default.
- Private VLANs are not supported on the switch.
- You cannot have a switch stack containing a mix of Catalyst 3850 and Catalyst 3650 switches.
full link -
http://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3se/vlan/configuration_guide/b_vlan_3se_3850_cg_chapter_0100.html
So it looks like with this release at least, they are not available. I don't know whether they are scheduled to be included in a later release of the software.
Perhaps someone from Cisco can comment. The product page certainly needs updating as it seems the configuration guide is the correct one.
Edit - i have posted a link to this thread in the Technical Documentation forum to ask for clarification although a Cisco person is still not guaranteed to answer.
Jon