HP Virtual Connect Enterprise Manager Software - Manual (Page 75)

5. From the Filter list, select External.
6. Select the external addresses to be reclaimed.
7. Click Reclaim External. You are prompted to confirm your choices.
8. Click OK.
Adding custom MAC address ranges
Because the maximum range size is 131,072, a large range might take a few minutes to create. You can
create one custom range.
To add custom MAC address ranges:
1. From the VCEM home page, under the Administration heading, click the MAC addresses hyperlink.
2. From the Select ranges to configure list, select MAC.
3. Click Add custom. The Add Custom MAC Address Range information appears.
4. Enter custom MAC address range.
5. Click OK.
Editing custom MAC address ranges
Because the maximum range size is 131,072, a large range might take a few minutes to edit. If you are
reducing the size of a custom range, verify that any addresses or exclusion ranges already in use are not
outside the edited range.
To edit custom MAC address ranges:
1. From the VCEM home page, under the Administration heading, click the MAC addresses hyperlink
under the Administration heading.
2. From the Select ranges to configure list, select MAC.
3. Select the custom MAC address range.
4. Click Edit.
5. Edit the custom MAC address range as necessary.
6. Click OK.
Removing custom MAC address ranges
NOTE: Removing a custom MAC address range also removes its defined exclusion ranges.
You must verify there are no addresses already in use for this range. To remove custom MAC address ranges:
1. From the Virtual Connect Enterprise Manager home page, under the Administration heading, click the
MAC addresses
hyperlink.
2. From the Select ranges to configure list, select MAC.
3. Select the custom MAC address range.
4. Click Delete. You are prompted to confirm your choice.
5. Click OK.
WWN Addresses
NOTE: In VCEM 1.40 and later, a new “VCEM-defined” range has been reserved, from which VCEM
allocates WWN addresses. VCEM no longer uses the “HP Pre-defined” range for WWN address allocation.
However, profiles created before VCEM 1.40 will continue to use the HP Pre-defined addresses already
assigned to them.
The WWN range used by the VCEM domain must be unique within the environment. HP provides a set of
predefined addresses that is reserved for Virtual Connect and VCEM and does not conflict with server
factory-default WWNs.
Overall, WWN range management in VCEM is very similar to MAC ranges. VCEM allocates WWNs
automatically according to VC Domain Group configuration using HP-predefined, VCEM-defined, or
WWN Addresses 75