When low on cpu an early sign of trouble is starting to see late hellos.
---
neighbour.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/neighbour.c b/neighbour.c
index 6bba726..d562ff0 100644
--- a/neighbour.c
+++ b/neighbour.c
@@ -135,6 +135,11 @@ update_neighbour(struct neighbour *neigh, struct
hello_history *hist,
missed_hellos = 0;
rc = 1;
} else if(missed_hellos < 0) {
+ /* Late hello. Probably due to the link layer buffering
+ packets during a link outage, or a cpu overload. */
+ fprintf(stderr,
+ "Late hello: bufferbloated neighbor %s\n",
+ format_address(neigh->address));
hist->reach <<= -missed_hellos;
missed_hellos = 0;
rc = 1;
--
2.17.1
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