mobile config on 6850

[mike18]

Hi,

In our network setup PC is attached to phone.
Need to understand the below config in red

vlan 10 enable name "voice-subnet 10.62.10.0"
vlan 10 mobile-tag enable ????????????? what we are doing with mobile tag here is phone sending trunk traffic to switch?

vlan port mobile 2/43
vlan port 2/43 default vlan restore disable????

Regards
Mike

[silvio]

Hi,

vlan port mobile 2/43

this means port 2/43 is mobile - the switch can change with rules or with authentication the vlan (also for untagged packets).
normaly at mobile ports 802.1q-tagging is forbidden.
But with

vlan 10 mobile-tag enable

at all mobile ports there are tagged frames in vlan 10 allowed.

In your post you you have asked about lldp-med. With this the phone sends 802.1q-tagged packets. At mobile ports than you need mobile-tag enable.

vlan port 2/43 default vlan restore disable

If f.e. the switch with vlan rules the incoming traffic forwards to a specific vlan than all is fine. But with silent devices like printers the vlan will ages out after 5 minutes and so the printer isn't reachable. With the command the switch didn't forgot the learned vlans at this port.

regards
Silvio