I am debating with a colleague about a potential configuration. We are implementing a new blade solution that has a built in 10 Gb switch and two blade servers, each having 4 10 Gb NICs.
However, the rest of our environment is still 1 Gb.
The blade switch has four external 10GBASE-T ports which will auto-sense down to 1 Gb. We plan on LAGing these.
Essentially, we will have 80 Gb of NIC bandwidth on a 10 Gb switch connected with a 4 Gb inter-switch link.
I think we should manually set the internal ports to 1 Gb, but he doesn't think there will be any noticeable performance problems from the above design.
Please let me know if you have had any experience with a similar setup, or if you know of any problems we may anticipate.