2015-11-22 3:23 GMT-02:00 Vipin Kumar <vi...@cumulusnetworks.com>: > Hello Quagga-dev, > > Objective of this email: > > To see if 'view' keyword can be replaced with 'vrf' > > Why: > > 1. Code and flow to implement VRFs in BGP is turning out to be quite > similar to how it is for views. VRF in BGP can be considered as a super-set > of the current views functionality. It should be possible to realize views > as a special type of VRF, and possibly enable it by a config option. > > This is to reduce the overhead on implementation (and also on usability) > to provide both view and vrf options at configuration/show/clear/debug > commands. > > 2. While views may be working for some use-cases, the support in 'show > commands' is not quite complete yet. > > More Details: > > In a way, this is a follow-up on the VRF discussion we had where we > suggested we could use the current BGP multi-instance implementation. > > Currently, BGP has some support for multiple views. These are implemented as > separate BGP instances, each with its own set of global configuration, > neighbors, RIB etc. This effectively makes the mapping of a VRF to a view > the most logical approach. > > bgp multiple-instance > > router bgp <asn> view <name1> > .. > router bgp <asn> view <name2> > > > For VRFs, one obvious choice is to use similar model with vrf keyword: > > router bgp <asn> vrf <name> > > If views are currently not being used for any real purpose, they could be > directly replaced with 'vrf' in the user-interface. A 'type' field for the > VRF could be introduced later to support other possibilities. If views are > being used/deployed now, we'd like to know more about how they are used. In > this case, we will think of a backward compatible change to introduce VRFs > with views. > > Thought to poll the community to see if thinking in this direction even > makes sense. > > Feel free to send unicast responses/or respond to the thread as is.
I think that it would be better to clean-up the current set of commands in bgpd before adding anything new. I'd be happy if someone resurrect my idea of a XML based CLI: https://lists.quagga.net/pipermail/quagga-dev/2012-June/009543.html As of now bgpd is a big mess, it's missing a lot of commands for BGP views and non-IPv4 address families. Adding more commands on top of that would only make everything worse. -- Renato Westphal _______________________________________________ Quagga-dev mailing list Quagga-dev@lists.quagga.net https://lists.quagga.net/mailman/listinfo/quagga-dev
