Another couple of comments on this draft. The technique you use of selecting a single node and forming two trees rooted at that node should really be noted up front in the summary.
A consequence of this is that when you add a node or when the root node fails the trees and hence the FRR paths may change. To some extent this happens in LFA and RLFA, although the changes will tend to be confined to a local region, whereas with MTR I think that the node may move to a completely different region. If that is the case then that has an impact on the FRR traffic management. By way of comparison, NV is the least impacted by this approach and the SR approach is impacted as much as LFA, but has the option of correcting this will a little effort. I think that there really needs to be some text on the matter in the architecture spec. - Stewart _______________________________________________ rtgwg mailing list [email protected] https://www.ietf.org/mailman/listinfo/rtgwg
