On Mon, Jun 24, 2013 at 11:15:11AM +0930, Glen Turner wrote:
Sun's tagline of "the network is the computer" was
true. But for servers
these days "the computer is the network" is also the case. It's nothing
for a server today to statically NAT or bridge IPv4 to VMs. Even in that
case it's best if the guest VM picks up its IPv4 addressing using DHCP.
But in the future we'll want to do better than that: to move network
routing onto the server itself. These new "data centre ethernet" protocols
are not entirely implemented in kernel space. Some run quite complex BGP
and MPLS control planes; others run IS-IS control planes.
So, the converse is that as actual workloads move to VMs (let alone cloud),
the host systems become a special case, and the "normal" case for a server
tends to become much more simple: either a single interface probably with
fixed-address DHCP, or in most complicated cases several interfaces on
specific networks known by convention.
--
Matthew Miller ☁☁☁ Fedora Cloud Architect ☁☁☁ <mattdm(a)fedoraproject.org>