I am currently involved in the NIC redundancy project for our Solaris servers. I understand that to achieve NIC redundancy for Solaris servers, we need to utilize Multipathing that was introduced to Solaris 8. After testing out this feature on one of our Solaris servers, I’ve came across some what of a ‘show stopping’ issue:
In order to properly set up Multipathing, for every Solaris server we have, we’ll need to allocate one additional IP address for each NIC on the server. These additional IP addresses are used by the server to detect the integrity of each NIC. The issue here is that these IP addresses need to be on the SAME VLAN segment as the host’s primary or public IP address.
Most of our Solaris servers reside in the .20 VLAN segment. After consulting with our network engineers, we simply do not have any spare IP addresses on the same VLAN for me to use.
At the moment, this puts my project at a halt. Any ideas or comments would be greatly appreciated!