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Babel: Do not keep an infeasible route as selected

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When a route becomes infeasible it should not be kept as selected; this
is forbidden by section 3.6 of the RFC and prevents subsequent updates
from the same router ID from replacing it.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
This commit is contained in:
Ondrej Zajicek (work) 2016-07-19 14:28:53 +02:00
parent 5d6ca22085
commit 0f67366601
1 changed files with 5 additions and 0 deletions
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5
proto/babel/babel.c
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@ -565,6 +565,11 @@ babel_select_route(struct babel_entry *e)
babel_send_seqno_request(e); babel_send_seqno_request(e);
babel_announce_rte(p, e); babel_announce_rte(p, e);
/* Section 3.6 of the RFC forbids an infeasible from being selected. This
is cleared after announcing the route to the core to make sure an
unreachable route is propagated first. */
e->selected_in = NULL;
} }
else else
{ {