Xen users - Jun 2007 - domU with gigabit ethernet or recommendations?

Dear Xen Users,
I have a rhel5 dom0 machine with four nics, two public and two
private. My goal is to run two xen instances, a fully virtualized
rhel4(with a custom kernel, hence the fully virtualized) and a
paravirtualized rhel5. Each instance will need one public and one
private nic with gigabit connectivity. At the moment I''m simply
bridging two nics to each instance. Is this the recommended method?

My only problem with this configuration is that within the domU, the
nics are emulated as:
eth0: RTL-8139C+ at 0xffffff000000e000, 00:16:3e:1d:33:bf, IRQ 11
eth0: link up, 100Mbps, full-duplex, lpa 0x05E1
Module 8139cp

Which does gives 100Mbps performance. Is there any way to specify the
device type within the domU? The dom0 nics are Broadcom NetXtreme II
BCM5708 1000Base-T.

Thank You,
                     jeff

-- 
Jeff Blasius / jeff.blasius@yale.edu
Phone: (203)432-9940  51 Prospect Rm. 011
High Performance Computing (HPC)
UNIX Systems Administrator, WorkStation Support (WSS)
Yale University Information Technology Services (ITS)

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