On Wed, 2005-04-20 at 13:59, Arne Bernin wrote: > On Wed, 2005-04-20 at 12:54 -0400, Calvin Webster wrote: > > Has anyone on the list successfully modeled a virtual WAN > > infrastructure, or at least built a functional LEAF router within UML or > > Xen? If so, I'd appreciate any suggestions you may have on the quickest > > way to setup this virtual WAN. > > you may tryout qemu (with kqemu kernel module for accelaration on host > system http://fabrice.bellard.free.fr/qemu/ ) and > vde (http://vde.sourceforge.net/) as "virtual" ethernet. I have a setup > to test but only use 2 machines with 2 nics (and 2 virtual > switches/hubs). With vde, you can also use "virtual cables" over ssh if > one machine isn't enough for testing...qemu seems to have a maximum > number of 8 network cards, so that should may be enough... > You don't need to change anything to run bering-uclibc (or another leaf) > inside qemu... besides the network card driver.
Thank you for the suggestions Arne. In my original post I was really looking for the fastest way to get 5 LEAF routers and 5 or 6 minimal client hosts virtualized. I don't really want to have to spend a lot of time building and learning the VM tool before I can use it. [QEMU] I took a look at the QEMU site. Some of the docs were a little hard to follow since they don't always say whether they're talking about host or guest OS. I like the cross-platform support, but it seems like it's still somewhat "beta". Their comparison of other "emulators" claim that UML requires "heavy kernel patches", while QEMU is nice to unpatched kernels, but it's slower. Is this true? [VDE] Is this required to connect QEMU machines? I don't see much about virtual networks in the docs. I don't see how this would help me create and test an _isolated_ virtual WAN. After reading the UML docs it seems that I can do this with the multicast and switch daemons, keeping the test traffic off my local LAN. [Summary] QEMU seems well suited for software development, but for my uses I think UML or Xen is the way to go. I'm leaning toward UML for now since it supposedly requires no modification to the guest OS. I don't want to have to recompile the LEAF distro to get started. Thank you for the info. I've bookmarked the sites for future reference. --Cal Webster ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728 ------------------------------------------------------------------------ leaf-user mailing list: [email protected] https://lists.sourceforge.net/lists/listinfo/leaf-user SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.html
