Why link is showing 100MBPS for Xen DomU although Xen Dom0 have 1000MBPS NIC

Solution Verified - Updated -

Issue

  • Xen Dom0 have 1000Mbps NIC  and the ethtool negotiates the 1000Mbps link, but Windows 2003 HVM DomU shows only 100Mbps speed.

Environment

  • Red Hat Enterprise Linux
  • Xen Hypervisor
  • Fully / Para Virtualised Guest

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