802.1Q Trunk Mode; Access Mode - Lenovo RackSwitch G8264 Application Manual

802.1Q Trunk Mode

Access Mode

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G8264 Application Guide for ENOS 8.4
Figure 38. Packet pass‐through in Tunnel Mode
Server
OS/Hypervisor
Regular
NIC attaches UFP
VLAN ID
Channel VLAN ID
Outbound
Packet
Outer tag sets vNIC;
NIC strips outer tag
Inbound
Packet
In trunk mode, a vPort can carry packets that have inner tags that belong to up to
1024 VLANs. A maximum of 4088 VLANs for all UFP vPorts can be configured on
the switch in stand‐alone mode. Each VLAN in the inner tag requires a VLAN
translation entry.
Note: Two vPorts operating in trunk mode on the same physical port cannot carry
the same set of VLANs in the inner tag.
Figure 39. Packet passing through in Trunk Mode
Server
OS/Hypervisor
Regular
NIC attaches UFP
VLAN IDs
Channel VLAN ID
Outbound
Packet
In access mode, a vPort carries packets with inner tags that belong to one VLAN.
The vPort is associated with the VLAN defined by the command:
RS G8264(config_ufp_vport)# network default­vlan <2‐4094>
Note: VLANs 4002‐4009 are reserved for outer tagging.
vNICs vPorts
NIC
Switching uses outer tag;
Ignores regular VLAN
Switching uses outer tag;
Ignores regular VLAN
vNIC vPort
NIC
VLAN
Translation
Lenovo Switch Ports without
Switch strips
outer tag
Switch adds outer
Channel VLAN ID
Lenovo Switch Ports without
VLAN
Switch strips
Classification
outer tag
vNICs
vNICs