Anything else than IGP metric based SPT is considered TE. Looking holistically - topology virtualization (or similar) could have been a better name.
Cheers, Jeff On Dec 3, 2020, 4:25 PM -0800, Robert Raszuk <rob...@raszuk.net>, wrote: > Hi Tony, > > The moment I hit "Send" I knew that this response may be coming as it really > depends what is one's definition of TE. > > If indeed IGP TE is anything more then SPF - then sure we can call it a TE > feature. > > However, while a very useful and really cool proposal, my point is to make > sure this is not oversold - that's all. > > Best, > R. > > > > On Fri, Dec 4, 2020 at 1:13 AM Tony Li <tony1ath...@gmail.com> wrote: > > > > > > Hi Robert, > > > > > > > > > > However I really do not think that what Flexible Algorithm offers can > > > > be compared or even called as Traffic Engineering (MPLS or SR). > > > > > > > > Sure Flex Algo can accomplish in a very elegant way with little cost > > > > multi topology routing but this is not full TE. It can also direct > > > > traffic based on static or dynamic network preferences (link colors, > > > > rtt drops etc ... ), but again it is not taking into account load of > > > > the entire network and IMHO has no way of accomplish TE level traffic > > > > distribution. > > > > > > > > Just to make sure the message here is proper. > > > > > > > > > It’s absolutely true that FlexAlgo (IP or SR) has limitations. There’s no > > > bandwidth reservation. There’s no dynamic load balancing. No, it’s not a > > > drop in replacement for RSVP. No, it does not supplant SR-TE and a good > > > controller. Etc., etc., etc…. > > > > > > However I don’t feel that it’s fair to say that FlexAlgo can’t be called > > > Traffic Engineering. After all TE is a very broad topic. Everything that > > > we’ve done that’s more sophisticated than simple SPF falls in the area of > > > Traffic Engineering. Link coloring and SRLG alone clearly fall into that > > > bucket. > > > > > > I’ll grant you that it may not have the right TE features for your > > > application, but that doesn’t mean that it’s not sufficient for some. > > > Please don’t mislead people by saying that it’s not Traffic Engineering. > > > > > > Regards, > > > Tony > > > > > > > _______________________________________________ > Lsr mailing list > Lsr@ietf.org > https://www.ietf.org/mailman/listinfo/lsr
_______________________________________________ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
