Hi Donald, Great, thank you for the clarification. I noticed that FRR using linked list in both BGP, and OSPF where a red black tree may be better in turn of Big-O. Two questions below: A. Is it worth to implement a redblack tree? B. Any effort is already in progress in implementing an embedded redblack tree and use it in some key places? If the answer to A is yes, B is no. I can volunteer to implement a light weight redblack tree (embedded usage), and patch it (I have done a couple of time for another two router companies). I just thought it might be better than search a long linked list. Thanks, Jay On 11/1/17, 6:15 AM, "Donald Sharp" <sharpd@cumulusnetworks.com> wrote: Jay - There is no hard limit. Having said that I am not aware of serious testing beyond like 64 vrf's. But that is allot of vrf's to have to maintain at one time.. donald On Tue, Oct 31, 2017 at 10:39 PM, Jay Chen <jchen1@paloaltonetworks.com> wrote: > Is there a limit that the # of vrf can support for a single switch or router > by using FRR? > > > > Thanks, > > Jay > > > > > _______________________________________________ > dev mailing list > dev@lists.frrouting.org > https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.frrouting.org_lis... >