User's Manual

Virtual Connect networks 98
ID mappings can be manually edited. However, administrators must ensure that no server connection VLAN
ID conflict exists.
The 'Force server connections to use the same VLAN mappings as shared uplink sets' check box can be
selected if no server profile connections are assigned to multiple networks that are not linked to a shared
uplink set.
VLAN Capacity
When the domain is configured with the Expanded VLAN capacity mode, observe the following:
• 1,000 networks can be in-use at any time.
An In-use network is defined as either:
o An Ethernet network that is assigned to a profile or an sFlow configuration
o An FCoE network that is associated with a shared uplink set
VCEM enforces consistent in-use definitions across all domains in each domain group. If a domain
is in maintenance mode and changes are made which would increase the number of in-use
networks beyond 1000 for any domain in the domain group, the complete maintenance operation
fails, and the domain stays in maintenance mode.
HP recommends limiting the total number of FCoE VLANs on any individual VC ENET module to 32.
• 8,192 Ethernet and FCoE VLANs can be defined per domain.
• 4,094 Ethernet and FCoE VLANs can be defined per shared uplink set.
Shared uplink sets support a maximum of 32 FCoE networks.
• 162 VLANs can be defined per physical server port.
For example, if you configure 150 VLAN mappings to FlexNIC-a, then only 12 VLANs can be
configured for the remaining FlexNICs (FlexNIC-b, FlexNIC-c, and FlexNIC-d).
o Duplicate VLANs cannot be configured on the same physical port.
o Do not map more than 162 VLANs to one physical server port. If you exceed the 162 VLAN limit,
the physical server port is disabled and the four server connections are marked as failed.
When the domain is configured with the Legacy VLAN Capacity mode, observe the following:
• The option to select Legacy VLAN Capacity mode is disabled when creating new domains with VC
firmware 3.70 or higher. Reverting from Expanded VLAN Capacity mode back to Legacy VLAN
Capacity mode is not allowed.
• To maintain compatibility for VC domains configured with Legacy VLAN Capacity mode and
upgrading firmware from VC 3.30 to VC3.70 or higher, the VCM CLI maintains the functionality of the
Legacy VLAN capacity setting. This allows the use of existing scripts that configure the VLAN capacity
mode.
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.
Versions of VC prior to v4.01 used the "preferred speed" to control bandwidth allocation. When existing
profiles are upgraded to VC v4.01 or later, the "maximum speed" from the network is set automatically on
the connection. If no maximum speed was configured prior to the upgrade, then the maximum speed is 20