On Thu, Sep 02, 2010 at 04:24:58PM -0700, Martin Casado wrote:
> I think you have a basic misunderstanding of L2 learning. A
> typical switch pipeline operates as follows (ignoring bcast/mcast):
>
> - packet enters switch
> - lookup destination MAC in L2 table
> - if match, send it out of port a
I think you have a basic misunderstanding of L2 learning. A typical
switch pipeline operates as follows (ignoring bcast/mcast):
- packet enters switch
- lookup destination MAC in L2 table
- if match, send it out of port associated with MAC table
- If unknown, flood the packet (along the associ
>
>
> The switch will indeed start broadcasting all packets to an unlearned
> MAC. If the sender spews them out at an uncontrolled rate, then you
> will waste a lot of bandwidth across your entire subnet. But reasonable
> senders will not do that (and TCP/IP is reasonable in this sense).
>
Switc
On Thu, Sep 02, 2010 at 06:38:52PM -0300, Luiz Henrique Ozaki wrote:
> Some MAC into switch A is comunicating with a MAC in switch B, when MAC at
> switch B is shutdown, the switch will send that packets to all ports in
> switch B and if the switch C is connected to switch B, the packets will go
>
But the physical switch is sending those packets to all ports because of a *
problem*... Thats not a common behavior, it doesn't make much sense.
Look at this scenario:
Some MAC into switch A is comunicating with a MAC in switch B, when MAC at
switch B is shutdown, the switch will send that packe
On Thu, Sep 2, 2010 at 9:01 AM, Luiz Henrique Ozaki
wrote:
> Yeah, I don't know the difficult in changing this but this should be the
> perfect cenario:
> VM is poweroff -> physical switch still have that MAC in a port and sends to
> the host -> OVS should know when a VM poweroff and in the MAC ta
Yeah, I don't know the difficult in changing this but this should be the
perfect cenario:
VM is poweroff -> physical switch still have that MAC in a port and sends to
the host -> OVS should know when a VM poweroff and in the MAC table doesn't
have that MAC anymore, MAC become incomplete and maybe s
On Thu, Sep 2, 2010 at 8:19 AM, Luiz Henrique Ozaki
wrote:
> Unwanted packets received by the VMs seems not a good idea...
If you have a controller, it can prevent this from happening. We have thought
about adding a similar feature to Open vSwitch itself, but general-purpose
design seems difficu
Yes, thats what is happening.
Sorry for the long mail... I just figure what should be at the end of the
mail.
Unwanted packets received by the VMs seems not a good idea...
On Wed, Sep 1, 2010 at 2:59 PM, Ben Pfaff wrote:
> I only read your original message quickly, but if I understand it
> pro
