Flex-10 Components - Compaq BL10e - HP ProLiant - 512 MB RAM Introduction Manual

Figure 5. Double-tagged packets in VLAN mapping mode
OS TAG OS TAG OS TAG OS TAG OS TAG OS TAG
OS TAG
FlexNIC FlexNIC FlexNIC FlexNIC FlexNIC FlexNIC FlexNIC
Double
Tagged
VNET
VNET
Uplink Uplink
Data Center Switch
The mapping mode is more efficient and is preferred over tunneling. The primary reason to use
tunneling is that more VLANs can be used on a tunneling connection than on a mapped connection.
Thirty two VLANs is the current limit on a mapped connection. If more than thirty two VLANS are
required on a single link, the administrator must use tunneling.
Although the tunneling and mapping graphics in Figures 4 and 5 show only one 10Gb port for the
LOM or mezzanine card, all FlexNIC devices have two ports as shown in Figure 2.
NOTE:
Mapping is supported on current VC, non-Flex-10, 1G NICs as
well. Server VLAN mapping was introduced in the 1.31 version of
Virtual Connect Manager firmware and that support extends to the
individual FlexNICs in the Flex-10 environment.

Flex-10 Components

Flex-10 technology hardware consists of three components, the 10Gb Flex-10 LOM, the 10Gb Flex-
10 mezzanine card, and the HP Virtual Connect Flex-10 10Gb Ethernet Module.
BladeSystem
VM
OS TAG
server
Flex10 LOM/
Mezz Card
FlexNIC
port 01
VNET
VNET
Shared Uplink
1Gb server 1Gb server
VNET VNET VNET VNET
VNET VNET
VNET VNET
1Gb server 1Gb server
VNET VNET VNET VNET
Flex-10 Enet
VC Module
9