Users Guide

Broadcom NetXtreme-E-UG304-2CS
100
NetXtreme-E User Guide User Guide for Dell Platforms
Figure 38: Network Diagram
13.2 VEB and VEPA Modes
VEB (Virtual Ethernet Bridging) mode generates an internal bridge within the NIC for VM-to-VM communication. The
Ethernet frames are traverses through the internal bridge. VEPA (Virtual Ethernet Port Aggregator) mode transports the
frames to the external switch. The switch handles the frame transport between the ports. VEB and VEPA can be configured
through UEFI HII.
13.2.1 VLAN Configuration
A VLAN can be configured on the Linux VF using:
NOTE: In this example Port 1 VF 0 is configured to VLAN 2.
ip link set $PF1 vf 0 vlan 2
When the VLAN is configured at the VF level, the Ethernet switch is configured as a VLAN.
13.3 VLAN Double Tagging
A VLAN can be configured at the PF level and another VLAN can be configured at the VF level inside the VM. Once the VF
is exposed inside the VM, the Linux L2 driver can be installed to activate the interface. The following commands can be used
to enable the VLAN inside the VM:
modprobe 802.1q;
ip link add link <IntName> name <Vlan.2> type vlan id <vlan num>
ip link set <IntName> up;
ip addr add <IPAddr>/mask broadcast <Gateway Addr> dev <IntName>
Virtual
Machine
Linux
Tenanat 1
DEMO-VM1
Virtual
Machine
Linux
Tenanat 2
DEMO-VM3
Virtual
Machine
Linux
Tenanat 1
DEMO-VM2
SR-IOV-VF0
5F:02:0
SR-IOV-VF1
5F:02:1
SR-IOV-VF0
5F:03:0
5F:00:0
5F:00:1
PF0
SFP28
PF1
SFP28
Z9100-ON : 25 Gb/s QSFP28 Ethernet Switch
Server-DEM02
RHEL 7.5