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authorJoakim Tjernlund <Joakim.Tjernlund@transmode.se>2012-07-07 17:06:11 +0200
committerDavid Lamparter <equinox@opensourcerouting.org>2012-07-25 18:07:30 +0200
commitc81ee5c94f5b34375f3ef276fdb9bde9098e7ecb (patch)
treedad1ab0d81b72a7c7a869bc7dc051b703deec9be /guile/Makefile.am
parent7b92589c225ae46417fc3fa0714a1b6f53f19c51 (diff)
ospfd: Optimize and improve SPF nexthop calculation
Maintain router LSA positions in OSPF interface. Find the OSPF interface in nexthop_calculation using the position in the router LSA. This is possible because the only time nexthop_calculation needs to look up interfaces is when dealing with its own Router LSA. This has the following advantages: - Multiple PtP interfaces with the same IP address between two routers. - Use Unnumbered PtP on just one end of the link. - Faster OI lookup for the OSPF interface and only done once for PtoP links. *ospf_interface.h: (struct ospf_interface) Add storage for storing router LSA position. *ospf_interface.c: (ospf_if_lookup_by_lsa_pos) lookup OSPF I/F in an area using LSA position. *ospf_lsa.c: (router_lsa_link_set) record Router LSA position. *ospf_spf.c: (ospf_spf_next) Count and pass along lsa position. (ospf_nexthop_calculation) Add lsa position argument. call ospf_if_lookup_by_lsa_pos() for OSFP interface handle. Clean up and remove all calls ospf_if_is_configured() the rest. Adjust a few debug logs. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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