[Irtf-rr] RE: AW: Differentiated Routing, not only plain rambo-SPF

[Naidu, Venkata]

Senthil,

-> > -> yes,it is similar;
-> > -> but here it is about state-less IP forwarding, i.e. about 
-> > -> forwarding the individual IP packets, without any
-> > -> RSVP path and without any MPLS path.
-> > 
-> >   Oh! Ok...you would like to do Crankback in
-> >   connection less IP environments?!?
-> > 
-> >   In such a case, you might find below paper interesting:
-> > http://www.ecse.rpi.edu/Homepages/shivkuma/research/papers/te-
-> > latest.pdf
->  I have studied this paper. Your are mis-interpreting here. The RPI
-> paper is an increment to OSPF or BGP for some traffic engineering
-> functionalties. It doesnt require signaling whereas, diffrout 
-> requires signaling. 

  Heinrich is talking about connection-less, no RSVP, no MPLS
  signaling. I just pointed a *relavent* paper. 
  
  You can find solution to any problem in multiple ways. 
 
  The problem in hand is:
  - Bypass congestion area *effectively* 
    using best of today's technologies
  - Effecient utilization of resources 
  - Fast forwarding
  - QoS (end-to-end perspective)
    etc etc

  IMO, after working for many years in MPLS & relavent technologies,
  I am convinced that MPLS will solve most of the problem we couldn't
  solve in the past *effectively*. Ofcourse, there are some issues
  with MPLS, still, I think, we can solve most of the above issues 
  very efficiently using MPLS than traditional IP routing.

  That is why I am arguing that, what ever problem in hand, can be
  solved by recent advancements in MPLS. Let us not go back to the
  past where we tried to achieve things in connection-less IP 
  environments.

  The work done by RPI guys is something similar to what Heinrich
  is discussing. Especially, section 3.1. Interested people can
  compare/contrast similar work done in the past (like above paper).

--
Venkata