http://marc.theaimsgroup.com/?l=zebra&m=114058002007887&w=2
it makes ospfd use priority
queue (using heap sort) for its spf calculation.
It should change spf execution time of ospfd from N^2 to N log (N).
PR: ports/94216
Submitted by: dikshie <dikshie@lapi.itb.ac.id>
Approved by: maintainer timeout
