Recently I had an issue where we recently built up new blade servers in a very new enclosure. The problem was that I was unable to ping among any server available in the same enclosure.
After a long struggle I found that the issue was due to the enclosure configuration and settings.
This was because the “Private Network” option was enabled. Private Network option provides an extra networking security.
Once I unchecked the Private Network I was able ping all the server from each other.
To enable Private Network,
1. Login to the HP Virtual Connect Manager.
2. Choose Ethernet networks” and choose the network.
3. You will now find an option “Private Network”.
4. Uncheck the option to resolve the issue.