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author | Josh Bailey <joshb@google.com> | 2011-07-20 20:49:11 -0700 |
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committer | Josh Bailey <joshb@google.com> | 2011-07-20 20:49:11 -0700 |
commit | 0b597ef00ec7c7eebd836e2b1d5a266efcd60005 (patch) | |
tree | 818852fc775358cadb0178c15226af63cfb06759 /lib/linklist.c | |
parent | 6918e74b97fd40f947ebd2eded9ab24b8569d3b8 (diff) |
bgpd: When advertising a multipath route, the attribute set to be
advertised is based on the bestpath attribute set, but the
following attributes are aggregated from the attribute sets
of the multipath constituents:
- AS_PATH
- ORIGIN
- COMMUNITIES
- EXTENDED COMMUNITIES
In addition the route is advertised with the NEXT_HOP set
to the router's interface IP address, instead of the NEXT_HOP
of the best path. This is to ensure that traffic will go to this
router so it can be fanned out via the multipath route.
* bgpd/ecommunity.c
* ecommunity_uniq_sort(): Make this function externally accessible
* bgpd/ecommunity.h
* Add external declaration for ecommunity_uniq_sort()
* bgpd/bgp_mpath.c
* bgp_info_nexthop_cmp(): Replace calls to bgp_attr_extra_get()
to avoid unwanted memory allocation
* bgp_info_mpath_free(): Free aggregate attribute for multipath
* bgp_info_mpath_attr(): Lookup aggregate attribute of a multipath route
* bgp_info_mpath_attr_set(): Set aggregate attribute of a multipath route
* bgp_info_mpath_aggregate_update(): Update the aggregate attribute
of a multipath route
* bgpd/bgp_mpath.h
* bgp_info_mpath: Add pointer to hold aggregate attribute of a multipath
* Add external declarations for new functions
* bgpd/bgp_route.c
* bgp_announce_check(): Use aggregate attribute when announcing multipath
route
* bgp_announce_check_rsclient(): Use aggregate attribute when announcing
multipath route
* bgp_best_selection(): After updating multipath set, update the
multipath aggregate attribute
Diffstat (limited to 'lib/linklist.c')
0 files changed, 0 insertions, 0 deletions