ripngd: allow to enable/disable the ECMP feature
Introduce a new command "[no] allow-ecmp" to enable/disable the
ECMP feature in RIPng. By default, ECMP is not allowed.
Once ECMP is disabled, only one route entry can exist in the list.
* ripng_zebra.c: adjust a debugging information, which shows the number
of nexthops according to whether ECMP is enabled.
* ripngd.c: ripng_ecmp_add() will reject the new route if ECMP is not
allowed and some entry already exists.
A new configurable command "allow-ecmp" is added to control
whether ECMP is allowed.
When ECMP is disabled, ripng_ecmp_disable() is called to
remove the multiple nexthops.
* ripngd.h: Add a new member "ecmp" to "struct ripng", indicating whether
ECMP is allowed or not.
Signed-off-by: Feng Lu <lu.feng@6wind.com>
Reviewed-by: Alain Ritoux <alain.ritoux@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Vincent Jardin <vincent.jardin@6wind.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/ripngd/ripngd.h b/ripngd/ripngd.h
index 75c5dfa..706ff54 100644
--- a/ripngd/ripngd.h
+++ b/ripngd/ripngd.h
@@ -129,6 +129,9 @@
struct thread *t_triggered_update;
struct thread *t_triggered_interval;
+ /* RIPng ECMP flag */
+ unsigned int ecmp;
+
/* For redistribute route map. */
struct
{