Hi,
the previous post is not entirely correct: in order to run redundand mgmt modules, you need indeed two J4857's. However, if you wish to a 10Gig module, you can run this with just one mgmt module unless you need the redundancy. The 10Gig module requires 07.6.04 code which is indeed on our website. To run this code (assuming you use older code right now) you will have to upgrade the Boot Code first and then the Firmware. The correct bootcode is included in the download package. It is imperative to use the new Boot Code since the older version cannot decompress the 07.6.04 firmware file and will not boot the router. My preffered way of preparing the box would be to ensure both managment modules have the same boot code, firmware and configuration and then, after making sure they both run independend, to join them in the chassis. Ideally they should use slot 1 and 2 (from left to right) and slot one should be taking over as the active management module. The Gbic ports can be used on both management modules. Hope that helps!
Andreas Koertel
ProCurve Technical Marketing
L3 Switches and Routers
Wireless Security