Hi Yakov, On Apr 4, 2014, at 10:53 PM, Yakov Rekhter wrote: > Stefano, > >> All, >> >> this is the new version of the problem-statement draft incorporating >> the latest comments. > > Section 5.1.1.2 is clearly an improvement over what was in the > previous version, although some text is still problematic. > Specifically, "C only installs the path via AS2 in its RIB." If it > is the Adj-RIB-Out, then C wouldn't be able to advertise the path > via AS3 inside AS1 (as this path is not in the Adj-RIB-Out). And > if it is the Loc-RIB, then the Adj-RIB-Out would have only the path > via AS2 (as the Adj-RIB-Out is populated from the Loc-RIB), and C > would not be able to advertise the path via AS3 inside AS1. Either > way, this would contradict the assumption that "C propagates all > the paths to Z within AS1 (add-path)."
I'll address your BGP concerns on a separate thread. > You addressed one part of my comments on section 3. it's already good to hear/read that ;-) > However, > the other part of my comments on section 3 is still not addressed. > Specifically, section 3 of draft-previdi-spring-problem-statement-02 > still contains the following: > > The source-based routing model, applied to the MPLS dataplane, offers > the ability to tunnel services (VPN, VPLS, VPWS) from an ingress PE > to an egress PE, with or without the expression of an explicit path > and without requiring forwarding plane or control plane state in > intermediate nodes. > > The above claim about the ability to tunnel services is misleading, > as VPN and VPLS services may use p2mp or (in the case of VPN) mp2mp > LSPs, and providing any capability for setting up such LSPs is not > in the SPRING charter. > > With this in mind I propose to replace the above with the following: > > The source-based routing model, applied to the MPLS dataplane, offers > the ability to tunnel services (VPN, VPLS, VPWS) from an ingress PE > to an egress PE, with or without the expression of an explicit path > and without requiring forwarding plane or control plane state in > intermediate nodes, but only if such tunnels are neither p2mp > nor mp2mp tunnels. fine by me, I'll incorporate your comments. Thanks. s. > > Yakov. > _______________________________________________ spring mailing list [email protected] https://www.ietf.org/mailman/listinfo/spring
