Thanks, Hiroki and Bob!
Thanks Changbin On Tue, Apr 1, 2014 at 1:34 AM, Hiroki Aramaki <[email protected]>wrote: > GRE and VXLAN packet use 24bit id range. Max number of ID is 1,677,000 > > and per host max number of subnet is 4094 that is inner VLAN limitation. > > > > Hiroki Aramaki > > > > *From:* Robert Kukura [mailto:[email protected]] > *Sent:* Tuesday, April 01, 2014 11:17 AM > *To:* [email protected] > *Subject:* Re: [Openstack] Limit of tunnel_id_ranges in Neutron > > > > > > On 3/31/14, 1:31 PM, Changbin Liu wrote: > > I notice that there are flow_mod flows on OVS which handle 1-to-1 > translations between VLAN IDs and GRE/VXLAN tunnel IDs. Does it mean the > range of tunnel_ids is limited by VLAN tags? > > These local VLAN IDs on br-int are assigned separately on each compute or > network node by neutron's openvswitch-agent, so you should be able to use > any number of networks simultaneously in your deployment as long as no more > than 4094 networks are active at once on any one node. > > -Bob > > > > > Thanks > > > > Changbin > > > > On Sun, Mar 30, 2014 at 5:31 PM, Kyle Mestery <[email protected]> > wrote: > > On Fri, Mar 28, 2014 at 11:39 PM, Changbin Liu <[email protected]> > wrote: > > Hi All, > > > > Maybe this is a simple question: is there any limit on "tunnel_id_ranges" > in Neutron configuration? Say, can I configured it to e.g., "1:10000" if I > have 10000 tenants in the cloud. I know VLAN is limited to 4094 tags. > > > > I googled around this issue but found that most commonly it is configured > to default "1:1000". > > > > There should not be a limit here, although the code will verify the tunnel > ID falls within an allowed range for your tunnel protocol (currently GRE or > VXLAN). > > > > Thanks, > > Kyle > > > > Thanks > > > > Changbin > > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : [email protected] > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > > > > > > _______________________________________________ > > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > Post to : [email protected] > > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : [email protected] > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > >
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