HP Virtual Connect Enterprise Manager 7.2 Release Notes

the command line of the Virtual Connect Enterprise Manager server to the Virtual Connect Manager. 3. Verify if
Virtual Connect is in the process of updating firmware. If so, wait for a few minutes and try again. 4. Verify
if Virtual Connect is in the process of failover. If so, wait for a few minutes and try again. 5. Check if the
Virtual Connect Manager user-interface is reporting a status of “Loading, please wait”. If so, wait for a few
minutes and try again.
VCM 3.70 stops responding for a short time period after receiving a VC Domain configuration
with IGMP Snooping disabled and IGMP NoFlood enabled. The IGMP NoFlood feature is only
available in VC 3.70 and later, so VCEM does not set IGMP NoFlood when propagating a pre-3.70
VC Domain configuration to a VC 3.70 Domain running in compatibility mode.
The following scenarios reproduce this issue for a VC Domain running VC firmware version 3.70
with IGMP NoFlood enabled in a VC Domain Group running Domain Group firmware mode prior
to 3.7x:
Adding a 3.70 or later VC Domain to a VC Domain Group in compatibility mode (3.30 or 3.50)
If a VC 3.70 Domain with IGMP NoFlood enabled is added to a VC Domain Group running
Domain Group Firmware Mode prior to 3.70 with IGMP Snooping disabled and the administrator
selects the VCEM option to overwrite the VC Domain 3.70 configuration. This is an uncommon
scenario because this option is only available for VC Domains without any server profiles.
If this occurs, use the following workaround:
1. Wait until the VC Domain restores communication with VCEM. The communication is restored
when you are able to login to the VCM web interface.
2. Use the VCM CLI to remove the external manager account (if present) from the VC Domain
that failed to be added to the VC Domain group. To remove the external manager account:
a. Telnet to the Virtual Connect Manager using an SSH connection such as SSH
[e-mail], where xxx is the VC Domain IP address.
b. Determine the user name of the external manager account, from the VCM command
prompt and enter show external-manager. For this example, assume the user name
returned was xyz.
c. From the VCM command prompt, disable the account by entering set
external-manager Username=xyz Enabled=false.
d. If present, remove the external-manager account by entering the following at the VCM
command prompt:
remove external-manager Username=xyz mactype=Factory-Default
wwnType=Factory-Default serverIdType=Factory-Default
Issues and suggested actions 9