Reusing a 4510R's SUP6-E as a redundant supervisor

[joshua]

Hi

I'm planning to upgrade a 4510R+E. It currently has a pair of Supervisor 6-E's and it'll be upgrade to use 7-Es.

This leaves me with, technically, a 6-E and a 6-E/2. I'd like to use both of them as redundant supervisors in some 4507Rs we've got.

The 6-E and 6-E/2 look identical. Will I be able to use both in this fashion? Or is there a technical or licensing constraint against using a Supervisor 6-E as a 6-E/2?

[joshua]

I should add that this 4510R is currently running enterprise services, 12.2(54)SG and that the motivation for upgrading to 7-E is to use E-series line cards in slots 8-10.