From: David Ahern <d...@cumulusnetworks.com> Date: Fri, 3 Jun 2016 12:36:54 -0700
> Currently, VRFs require 1 oif and 1 iif rule per address family per > VRF. As the number of VRF devices increases it brings scalability > issues with the increasing rule list. All of the VRF rules have the > same format with the exception of the specific table id to direct the > lookup. Since the table id is available from the oif or iif in the > loopup, the VRF rules can be consolidated to a single rule that pulls > the table from the VRF device. > > This solution still allows a user to insert their own rules for VRFs, > including rules with additional attributes. Accordingly, it is backwards > compatible with existing setups and allows other policy routing as > desired. I hate module parameters. And you don't even need one in this situation, just use a default preference of 1000 and add a newlink netlink attribute that can change it. Thanks.