Is a RHEV migration network required to be a Layer 3 network?

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Virtualization 3.3
  • Red Hat Enterprise Virtualization 3.4

Issue

  • Setting up a dedicated network for VM migrations in RHEV and want to know if this network needs to be a Layer 3 network

  • Can I use a Layer 2 network for a dedicated VM migration network?

Resolution

  • The migration network must be a Layer 3 network
    • Additionally, the bridge device created for the logical network must have an IP address, though the physical device the bridge is attached to does not.

Root Cause

  • The RHEV engine uses IP for all communications, including VM migrations between hypervisors

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