Vnic Uplink Modes - Lenovo RackSwitch G8264 Application Manual

vNIC Uplink Modes

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The switch supports two modes for configuring the vNIC uplinks: dedicated mode
and shared mode. The default is the dedicated mode. To enable the shared mode,
enter the following command:
RS G8264(config)# vnic uplink­share
In the dedicated mode, only one vNIC group is assigned to an uplink port. This
port can be a regular port or a LAG port. The NIC places an outer tag on the vNIC
group packets. This outer tag contains the vNIC group VLAN. The uplink NIC
strips off the outer tag before sending out the packet. For details, see "vNIC
Groups in Dedicated Mode" on page
In the shared mode, multiple vNIC groups can be assigned to an uplink port. This
port can be a regular port or a LAG port. The vNIC groups share the uplink. You
may assign a few vNIC groups to share an uplink and the other vNIC groups to
have a single uplink each. In either case, the switch still operates in shared mode.
As in the dedicated mode, the NIC places an outer tag on the vNIC group packets.
This outer tag contains the vNIC group VLAN. The uplink NIC does not strip off
the outer tag. The vNIC group tag defines the regular VLAN for the packet.This
behavior is particularly useful in cases where the downstream server does not set
any tag. Effectively, each vNIC group is a VLAN, which you can assign by
configuring the VLAN to the vNIC group. You must enable the tag configuration
on the uplink port. For details, see "vNIC Groups in Shared Mode" on page
329.
Chapter 19: Virtual NICs
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