Babel: Do not maintain feasibility distance for our own routes (c6ed5a0f) · Commits · 戴 / Bird

We do not need to maintain feasibility distances for our own router ID (we ignore the updates anyway). Not doing so makes the routes be garbage collected sooner when export filters change. Signed-off-by:

Toke Høiland-Jørgensen <toke@toke.dk>

proto/babel/babel.c

+13 −8

Original line number	Diff line number	Diff line
		@@ -788,16 +788,21 @@ babel_send_update(struct babel_iface *ifa, bird_clock_t changed)
		msg.update.prefix = e->n.prefix;
		msg.update.router_id = r->router_id;

		/* Update feasibility distance */
		babel_enqueue(&msg, ifa);

		/* Update feasibility distance for redistributed routes */
		if (!OUR_ROUTE(r))
		{
		struct babel_source *s = babel_get_source(e, r->router_id);
		s->expires = now + BABEL_GARBAGE_INTERVAL;

		if ((msg.update.seqno > s->seqno) \|\|
		((msg.update.seqno == s->seqno) && (msg.update.metric < s->metric)))
		{
		s->seqno = msg.update.seqno;
		s->metric = msg.update.metric;
		}
		babel_enqueue(&msg, ifa);
		}
		}
		FIB_WALK_END;
		}

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