Scott Brim escribió:
Excerpts from marcelo bagnulo braun on Thu, Jan 15, 2009 10:19:28PM +0100:
Scott Brim escribió:
Excerpts from Pekka Nikander on Thu, Jan 15, 2009 10:37:16PM +0200:
It's clear that pure endpoint-based multipathing, a la Shim6 REAP,
cannot scale.
Would you please be more specific. It is not at all clear to me.
AFAIK, SCTP is doing essentially the same thing. (I can see the
signalling load there, causing potential packet storms; is that the
"scalability" problem you are referring to?)
I should have done the math first but ... Let's assume,
conservatively, on the order of ten billion communicating endpoint
pairs and 2 locators per endpoint. How often do you test locator
pairs that you are not using?
what do you mean by a "locator pairs that you are not using"?
You mean a locator pair that is not the one that is the current locator
pair, or do you mean the current locator pair, but that you don't have
data packets to send in this moment?
regards, marcelo
If one end has locators A and B, and the other end has C and D ...
then unless you are multipathing you will use a single pair, e.g. A-C,
while A-D and B-C are not being used, just checked for liveness in
case a need arises.
That's not how REAP works
REAP does not probes for liveness of unused paths AFAICT
Regards, marcelo
_______________________________________________
rrg mailing list
[email protected]
http://www.irtf.org/mailman/listinfo/rrg
