On Thu, Aug 5, 2010 at 9:22 PM, 陈文龙 <[email protected]> wrote:
> I thought I could take use of GRE to make VLAN across routers. > > Cisco ,VMware, EMC support Long Distance Live Migration, which make it > possible to migrate VM over Layer 3. > > I just want to see if OvS support it too. Or something like that. > Please keep discussions on the list. I have moved it back to disc...@. It is possible to create a GRE tunnel between two machines that are on different sides of a router. It is also possible to put vlans inside of the tunnel or have multiple tunnels. This would solve the problem you presented in your diagram. However, I wouldn't really characterize this as having a vlan cross a router boundary. This is an L3 tunnel with no router inside of it.
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