[ovs-discuss] Ethernet over GRE tunneling?

陈文龙 qzchenwl at gmail.com
Thu Aug 12 02:21:55 UTC 2010


I want to set up the network topology like:

+---------+ 1.1.1.1           2.2.2.2 +---------+
| Router  |----- Public network ----  | Router  |
+---------+                           +---------+
    |                                      |
+---------+                           +----------+
| Switch  |                           | Switch   |
+---------+                           +----------+
  |                                     |
+-------+                             +----------+
| Host1 |                             | Host2    |
|-------|                             |----------|
|OVS    |                             |OVS       |
|VM1 VMx|                             |VM2 .. VMy|
+-------+                             +----------+
192.168.1.10                          192.168.1.20

I want to build GRE tunnel between 1.1.1.1 and 2.2.2.2,
so that, a packet 192.168.1.10 broadcasts can be broadcast to 192.168.1.20.
And VM1 regards VM2 as a LAN member.

If the tunnel takes the dot1Q tag, that's better.

How to configure OVS to implement that?


2010/8/12 Jesse Gross <jesse at nicira.com>

> On Wed, Aug 11, 2010 at 2:13 AM, 陈文龙 <qzchenwl at gmail.com> wrote:
>
>> What is the different with Implement GRE Protocol ?
>> Does OVS have any advanced features than GRE?
>> Is OVS able to take a broadcast packet and go through GRE tunnel and
>> broadcast in another subnet?
>
>
> GRE is a standardized protocol so there aren't really "advanced features"
> per se.  However, the Open vSwitch implementation supports a large number
> tunnels and has significantly higher performance when compared to other
> implementations.
>
> GRE is just tunneling Ethernet frames between switches so a broadcast
> packet will be broadcast by a remote switch, regardless of where it is.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20100812/5c59e05b/attachment-0001.html>


More information about the discuss mailing list