HP Virtual Connect Flex-10 10Gb Ethernet Module for c-Class BladeSystem - Manual (Page 76)

Network management 76
o Although 320 VLANs can be supported within each module, the overall number of VLANs within
the VC Domain is also restricted due to performance limitations of the VC Manager during
module restore or recovery. The limits are defined based on usage scenarios.
• You can either select to tunnel VLAN tags or map VLAN tags on a domain, but not both. The option
is grayed out if it is not supported by the configuration.
• The port VLAN ID must be selected from a specific shared uplink set.
• When the 'Tunnel VLAN Tags' option is selected on the Ethernet Settings (Advanced Settings) screen
(on page 72) or the 'Enable VLAN Tunneling' option is selected on the Define Ethernet Network
screen (on page 58), server VLAN tagging is supported only on networks with dedicated uplinks and
cannot be used with shared uplink sets.
• If the 'Tunnel VLAN Tags' option is selected and VLAN tunneling is enabled on any dedicated
network, the 'Map VLAN Tags' option cannot be selected. VLAN tunneling must be disabled on all
dedicated networks before the 'Map VLAN Tags' option can be selected. Before Virtual Connect
v1.31, all networks had tunneling enabled. If you upgrade from a previous version, you cannot
enable mapping of VLANs unless you disable tunneling on each network from the Edit Ethernet
Network screen (on page 61).
TIP: Use CLI scripting to automate the disabling of VLAN tunneling on multiple dedicated
vNets. For information on CLI scripting, see the HP BladeSystem Virtual Connect Command
Line Interface User Guide.
• If the 'Map VLAN Tags' option is selected and any server port is connected to multiple networks, the
'Tunnel VLAN Tags' option cannot be selected. All server profile connections assigned to multiple
networks must be assigned to a single network (or 'Unassigned') before the 'Tunnel VLAN Tags'
option can be selected.
• The 'Force server connections to use the same VLAN mappings as shared uplink sets' checkbox can
be selected under the following conditions:
o The 'Map VLAN Tags' option is selected.
o No server profile connections are assigned to multiple networks not linked to a Shared Uplink
Set.
This action forces all server connections mapped to multiple networks to be linked to a shared uplink
set. Server administrators cannot override this selection when creating or editing a profile.
Multiple Networks Link Speed Settings
When using mapped VLAN tags (multiple networks over a single link), these settings are used for the
overall link speed control. Select the checkbox next to each item to set the value.
These settings affect only newly created profiles. Changing these settings does not affect any assigned
profiles.
To set the speed, click the selection box, select a setting (100Mb to 10Gb), and then click OK.
• Set a Custom value for the Preferred Link Connection Speed.
This value is the default speed for server profile connections mapped to this network. The server
administrator can override this setting on an individual profile connection.
• Set a Custom value for the Maximum Link Connection Speed.
This value is the maximum speed for server profile connections mapped to this network. The server
administrator can override this setting on an individual profile connection.