On Thu, Sep 19, 2013 at 10:58 AM, Faisal Ali <justhu...@gmail.com> wrote: > Given how many Vms any hypervisor can respectably service, even if one > bridge is dedicated to VM (I know there not much use to this type of > connectivity); even a hundered or few more bridges is unrealistic. So I > guess we may not have to worry too much about the limit. Yes. In a typical hypervisor environment, you have one bridge for every physical interface but only one bridge connected to all VM interfaces. You can always bump up the limit on file descriptors with the ulimit command.
> > Thanks for a quick assist Shetty. > > > > On 9/19/13 12:41 PM, "Gurucharan Shetty" <shet...@nicira.com> wrote: > >>On Thu, Sep 19, 2013 at 10:28 AM, Faisal Ali <justhu...@gmail.com> wrote: >>> Hi, >>> >>> How many bridges can a openvswitch have. Is there a hard limit. >> > >From ovs-vswitchd man page: >> ovs-vswitchd started through ovs-ctl(8) provides a >>limit of 7500 file descriptors. The limits on the number of >> bridges and ports is decided by the availability of file >>descriptors. With the Linux kernel datapath, creation of >> a single bridge consumes 3 file descriptors and adding a >>port consumes 1 file descriptor. Performance will degrade >> beyond 1,024 ports per bridge due to fixed hash table >>sizing. Other platforms may have different limitations. >> >>> >>> Thanks >>> Faisal Ali >>> >>> _______________________________________________ >>> discuss mailing list >>> discuss@openvswitch.org >>> http://openvswitch.org/mailman/listinfo/discuss > > _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
