Hi,
  when we try to scale the number of sessions we seem to be hitting the FD limit
and get the below error. Is there a way to increase the FD limit, currently it seems to
be set at 1024. This is with 6.0 release - frr-6.0-001.el7.centos.x86_64.rpm

2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)
2019/04/08 05:14:38 BGP: [Error] BGP socket accept failed (Too many open files)

thanks,
Venky