Re: [ovs-discuss] OVS megaflows

I took a look at the datapath code - saw only single table, which its entries are microflows and megaflows the megaflows are indicated by non-zero mask fields Sara On Wed, Aug 16, 2017 at 9:59 AM, Sara Gittlin wrote: > Thank you Joe > Few questions: > 1. Are there 2

Re: [ovs-discuss] OVS megaflows

Thank you Joe Few questions: 1. Are there 2 separate flow tables in the kernel data-path ? for microflows and megaflows ? 2. If the answer is yes : - When pkt arrives, is it first checked against the microflows table and if there is no match, then it checked against the megaflows table ?

Re: [ovs-discuss] OVS megaflows

On the first point - it's a little more subtle than that. A traffic flow (eg, a connection) must arrive at OVS, the first packet is sent through userspace, which causes userspace to install a megaflow into the datapath. Subsequently, if any traffic which matches that megaflow arrives, it will

Re: [ovs-discuss] OVS megaflows

Can i summarize: 1. Once N microflows are installed in the kernel cache: we can install a megaflow/s in kernel datapath, if it possible to generate a megaflow/s for them 2. These megaflow/s remain in the kernel megaflow cache as long as the associated flows are in userspace openflow tables,

Re: [ovs-discuss] OVS megaflows

The FAQ is referring to megaflows as well, the reasons are the same. Neither microflows nor megaflows can be pre-populated. On 14 August 2017 at 00:35, Sara Gittlin wrote: > I understand that this citation refers to the kernel microflows tables. > the kernel megaflows

Re: [ovs-discuss] OVS megaflows

I understand that this citation refers to the kernel microflows tables. the kernel megaflows table *can be* pre-populated. Correct ? Sara On Mon, Aug 14, 2017 at 9:31 AM, Sara Gittlin wrote: > Thanks you Joe > the following citation is in a contradiction to the idea of

[ovs-discuss] OVS megaflows

Hello, I understand that there is a support for megaflows in the kernel and netlink. I also understand that there is no megaflow implementation in ofproto. i.e. there is no implementation of compressing (if possible) all flows in ofproto table to megaflows and installing it in the datapath. is