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-rw-r--r--src/vnet/fib/fib_entry_src.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vnet/fib/fib_entry_src.c b/src/vnet/fib/fib_entry_src.c
index 060fac941d2..1fb040608b4 100644
--- a/src/vnet/fib/fib_entry_src.c
+++ b/src/vnet/fib/fib_entry_src.c
@@ -382,6 +382,14 @@ fib_entry_src_mk_lb (fib_entry_t *fib_entry,
.fct = fct,
};
+ /*
+ * As an optimisation we allocate the vector of next-hops to be sized
+ * equal to the maximum nuber of paths we will need, which is also the
+ * most likely number we will need, since in most cases the paths are 'up'.
+ */
+ vec_validate(ctx.next_hops, fib_path_list_get_n_paths(esrc->fes_pl));
+ vec_reset_length(ctx.next_hops);
+
lb_proto = fib_proto_to_dpo(fib_entry->fe_prefix.fp_proto);
fib_path_list_walk(esrc->fes_pl,