Techniques for scalable and foolproof virtual machine move handling with virtual port channels

摘要

Techniques are provided for managing movements of virtual machines in a network. At a first switch, a virtual machine (VM) is detected. The VM is hosted by a physical server coupled to the first switch. A message is sent to other switches and it indicates that the VM is hosted by the physical server. When the first switch is paired with a second switch as a virtual port channel (vPC) pair, the message includes a switch identifier that identifies the second switch. A receiving switch receives the message from a source switch in the network comprising a route update associated with the VM. A routing table of the receiving switch is evaluated to determine whether the host route is associated with a server facing the physical port. The message is examined to determine it contains the switch identifier.

主权项

1. A method comprising:
at a first switch device in a network, detecting a virtual machine hosted by a physical server that is coupled to the first switch device; and sending a message from the first switch device to a plurality of other switch devices in the network, wherein the message indicates that the virtual machine is hosted by the physical server that is coupled to the first switch device, and when the first switch device is paired with a second switch device as a virtual port channel pair in the network the message from the first switch device to the plurality of other switch devices includes a switch identifier that identifies the second switch device, wherein the plurality of other switch devices includes the second switch device and at least one additional switch device that is not associated with the virtual port channel pair.