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authorPaul Jakma <paul@quagga.net>2010-01-24 23:36:20 +0000
committerPaul Jakma <paul@quagga.net>2010-12-08 17:13:19 +0000
commit02d942c9d4afabf04bd781f0e1e5e8aa36945df2 (patch)
tree1874fc70a20b6b0407e808c926c362aa03415662 /doc/kernel.texi
parentc363d3861b5384a31465a72ddc3b0f6ff007a95a (diff)
ospfd: Fix maxage/flush to not try flood twice, remember maxages for longer
2006-05-30 Paul Jakma <paul.jakma@sun.com> * (general) Fix confusion around MaxAge-ing and problem with high-latency networks. Analysis and suggested fixes by Phillip Spagnolo, in [quagga-dev 4132], on which this commit expands slightly. * ospf_flood.{c,h}: (ospf_lsa_flush) new function. Scope-general form of existing flush functions, essentially the dormant ospf_maxage_flood() but without the ambiguity of whether it is responsible for flooding. * ospf_lsa.c: (ospf_lsa_maxage) Role minimised to simply setup LSA on the Maxage list and schedule removal - no more. ospf_lsa_flush* being the primary way to kick-off flushes of LSAs. Don't hardcode the remover-timer value, which was too short for very high-latency networks. (ospf_maxage_lsa_remover) Just do what needs to be done to remove maxage LSAs from the maxage list, remove the call to ospf_flood_through(). Don't hardcode remove-timer value. (ospf_lsa_{install,flush_schedule}) ospf_lsa_flush is the correct entrypoint to flushing maxaged LSAs. (lsa_header_set) Use a define for the initial age, useful for testing. * ospf_opaque.c: (ospf_opaque_lsa_refresh) ditto. (ospf_opaque_lsa_flush_schedule) ditto. * ospfd.h: ({struct ospf,ospf_new}) Add maxage_delay parameter, interval to wait before running the maxage_remover. Supply a suitable default. Add a define for OSPF_LSA_INITIAL_AGE, see lsa_header_set().
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