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pimd: Allow igmp query to go out immediately on startup

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When starting up allow the 1st query to go out immediately,
well ok 1 second, and then the next queries to go out in
query_interval/4 seconds until startup mode is finished.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-09-20 20:34:31 -04:00
parent 7ef6604658
commit 8971ccb29d
1 changed files with 14 additions and 8 deletions
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22
pimd/pim_igmp.c
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@ -826,9 +826,6 @@ void pim_igmp_general_query_on(struct igmp_sock *igmp)
int startup_mode;
int query_interval;
zassert(igmp);
zassert(igmp->interface);
/*
Since this socket is starting as querier,
there should not exist a timer for other-querier-present.
@ -842,13 +839,24 @@ void pim_igmp_general_query_on(struct igmp_sock *igmp)
The Startup Query Interval is the interval between General Queries
sent by a Querier on startup. Default: 1/4 the Query Interval.
The first one should be sent out immediately instead of 125/4
seconds from now.
*/
startup_mode = igmp->startup_query_count > 0;
if (startup_mode) {
--igmp->startup_query_count;
/*
* If this is the first time we are sending a query on a
* newly configured igmp interface send it out in 1 second
* just to give the entire world a tiny bit of time to settle
* else the query interval is:
* query_interval = pim_ifp->igmp_default_query_interval >> 2;
*/
if (igmp->startup_query_count == igmp->querier_robustness_variable)
query_interval = 1;
else
query_interval = PIM_IGMP_SQI(pim_ifp->igmp_default_query_interval);
/* query_interval = pim_ifp->igmp_default_query_interval >> 2; */
query_interval = PIM_IGMP_SQI(pim_ifp->igmp_default_query_interval);
--igmp->startup_query_count;
}
else {
query_interval = igmp->querier_query_interval;
@ -864,7 +872,6 @@ void pim_igmp_general_query_on(struct igmp_sock *igmp)
igmp->fd);
}
igmp->t_igmp_query_timer = NULL;
zassert(!igmp->t_igmp_query_timer);
THREAD_TIMER_ON(master, igmp->t_igmp_query_timer,
pim_igmp_general_query,
igmp, query_interval);
@ -883,7 +890,6 @@ void pim_igmp_general_query_off(struct igmp_sock *igmp)
}
}
THREAD_OFF(igmp->t_igmp_query_timer);
zassert(!igmp->t_igmp_query_timer);
}
/* Issue IGMP general query */