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@@ -1,748 +0,0 @@
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-/*
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- * OSPF flap dampening by Manav Bhatia
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- * Copyright (C) 2002
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- *
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- * This file is part of GNU Zebra.
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- *
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- * GNU Zebra is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the
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- * Free Software Foundation; either version 2, or (at your option) any
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- * later version.
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- *
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- * GNU Zebra is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- * General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with GNU Zebra; see the file COPYING. If not, write to the Free
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- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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- * 02111-1307, USA.
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- */
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-
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-#include <zebra.h>
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-#include <math.h>
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-
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-#include "log.h"
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-#include "prefix.h"
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-#include "thread.h"
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-#include "table.h"
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-#include "command.h"
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-#include "vty.h"
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-
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-extern struct thread_master *master;
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-
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-#include "ospf6_damp.h"
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-
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-#ifdef HAVE_OSPF6_DAMP
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-
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-#define DELTA_REUSE 10 /* Time granularity for reuse lists */
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-#define DELTA_T 5 /* Time granularity for decay arrays */
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-#define DEFAULT_HALF_LIFE 60 /* (sec) 1 min */
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-
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-#define DEFAULT_PENALTY 1000
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-#define DEFAULT_REUSE 750
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-#define DEFAULT_SUPPRESS 2000
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-
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-#define REUSE_LIST_SIZE 256
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-#define REUSE_ARRAY_SIZE 1024
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-
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-/* Global variable to access damping configuration */
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-struct ospf6_damp_config damp_config;
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-struct ospf6_damp_config *dc = &damp_config;
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-u_int reuse_array_offset = 0;
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-struct route_table *damp_info_table[OSPF6_DAMP_TYPE_MAX];
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-struct thread *ospf6_reuse_thread = NULL;
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-
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-int ospf6_damp_debug = 0;
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-#define IS_OSPF6_DEBUG_DAMP (ospf6_damp_debug)
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-
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-static struct ospf6_damp_info *
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-ospf6_damp_lookup (u_short type, struct prefix *name)
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-{
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- struct route_node *node;
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-
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- node = route_node_lookup (damp_info_table[type], name);
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- if (node && node->info)
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- return (struct ospf6_damp_info *) node->info;
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- return NULL;
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-}
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-
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-static struct ospf6_damp_info *
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-ospf6_damp_create (u_short type, struct prefix *name)
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-{
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- struct route_node *node;
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- struct ospf6_damp_info *di;
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- char namebuf[64];
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-
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- di = ospf6_damp_lookup (type, name);
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- if (di)
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- return di;
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-
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- if (IS_OSPF6_DEBUG_DAMP)
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- {
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- prefix2str (name, namebuf, sizeof (namebuf));
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- zlog_info ("DAMP: create: type: %d, name: %s", type, namebuf);
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- }
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-
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- di = (struct ospf6_damp_info *)
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- malloc (sizeof (struct ospf6_damp_info));
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- memset (di, 0, sizeof (struct ospf6_damp_info));
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- di->type = type;
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- prefix_copy (&di->name, name);
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-
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- node = route_node_get (damp_info_table[type], name);
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- node->info = di;
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-
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- return di;
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-}
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-
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-static void
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-ospf6_damp_delete (u_short type, struct prefix *name)
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-{
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- struct route_node *node;
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- struct ospf6_damp_info *di;
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- char namebuf[64];
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-
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- node = route_node_lookup (damp_info_table[type], name);
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- if (! node || ! node->info)
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- return;
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-
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- di = node->info;
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-
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- if (IS_OSPF6_DEBUG_DAMP)
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- {
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- prefix2str (&di->name, namebuf, sizeof (namebuf));
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- zlog_info ("DAMP: delete: type: %d, name: %s",
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- di->type, namebuf);
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- }
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-
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- node->info = NULL;
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- free (di);
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-}
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-
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-/* compute and fill the configuration parameter */
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-void
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-ospf6_damp_init_config (u_int half_life, u_int reuse,
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- u_int suppress, u_int t_hold)
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-{
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- int i;
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- double max_ratio, max_ratio1, max_ratio2;
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-
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- dc->half_life = half_life ? half_life : DEFAULT_HALF_LIFE;
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- dc->reuse = reuse ? reuse : DEFAULT_REUSE;
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- dc->suppress = suppress ? suppress : DEFAULT_SUPPRESS;
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- dc->t_hold = t_hold ? t_hold : 4 * dc->half_life;
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-
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- /* Initialize system-wide params */
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- dc->delta_t = DELTA_T;
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- dc->delta_reuse = DELTA_REUSE;
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- dc->default_penalty = DEFAULT_PENALTY;
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- dc->reuse_index_array_size = REUSE_ARRAY_SIZE;
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-
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- /* ceiling is the maximum penalty a route may attain */
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- /* ceiling = reuse * 2^(T-hold/half-life) */
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- dc->ceiling = (int)
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- (dc->reuse * (pow (2, (double) dc->t_hold / dc->half_life)));
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-
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- /* Decay-array computations */
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- /* decay_array_size = decay memory/time granularity */
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- dc->decay_array_size = ceil ((double) dc->t_hold / dc->delta_t);
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- dc->decay_array = malloc (sizeof (double) * (dc->decay_array_size));
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-
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- /* Each i-th element is per tick delay raised to the i-th power */
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- dc->decay_array[0] = 1.0;
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- dc->decay_array[1] = exp ((1.0 / (dc->half_life / dc->delta_t)) * log (0.5));
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- for (i = 2; i < dc->decay_array_size; i++)
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- dc->decay_array[i] = dc->decay_array[i - 1] * dc->decay_array[1];
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-
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- /* Reuse-list computations (reuse queue head array ?) */
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- dc->reuse_list_size = ceil ((double) dc->t_hold / dc->delta_reuse) + 1;
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- if (dc->reuse_list_size == 0 || dc->reuse_list_size > REUSE_LIST_SIZE)
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- dc->reuse_list_size = REUSE_LIST_SIZE;
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- dc->reuse_list_array = (struct ospf6_damp_info **)
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- malloc (dc->reuse_list_size * sizeof (struct ospf6_reuse_list *));
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- memset (dc->reuse_list_array, 0x00,
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- dc->reuse_list_size * sizeof (struct ospf6_reuse_list *));
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-
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- /* Reuse-array computations */
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- dc->reuse_index_array = malloc (sizeof (int) * dc->reuse_index_array_size);
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-
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- /*
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- * This is the maximum ratio between the current value of the penalty and
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- * the reuse value which can be indexed by the reuse array. It will be
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- * limited by the ceiling or by the amount of time that the reuse list
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- * covers
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- */
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- max_ratio1 = (double) dc->ceiling / dc->reuse;
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- max_ratio2 = exp ((double) dc->t_hold / dc->half_life) * log10 (2.0);
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- max_ratio = (max_ratio2 != 0 && max_ratio2 < max_ratio1 ?
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- max_ratio2 : max_ratio1);
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-
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- /*
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- * reuse array is just an estimator and we need something
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- * to use the full array
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- */
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- dc->scale_factor = (double) dc->reuse_index_array_size / (max_ratio - 1);
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-
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- for (i = 0; i < dc->reuse_index_array_size; i++)
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- {
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- dc->reuse_index_array[i] = (int)
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- (((double) dc->half_life / dc->delta_reuse) *
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- log10 (1.0 / (dc->reuse * (1.0 + ((double) i / dc->scale_factor))))
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- / log10 (0.5));
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- }
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-
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- dc->enabled = ON;
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-}
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-
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-static double
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-ospf6_damp_decay (time_t tdiff)
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-{
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- int index = tdiff / dc->delta_t;
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-
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- if (index >= dc->decay_array_size)
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- return 0;
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-
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- return dc->decay_array[index];
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-}
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-
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-static int
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-ospf6_damp_reuse_index (int penalty)
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-{
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- int index;
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-
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- index = (int) (((double) penalty / dc->reuse - 1.0) * dc->scale_factor);
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-
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- if (index >= dc->reuse_index_array_size)
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- index = dc->reuse_index_array_size - 1;
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-
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- return (dc->reuse_index_array[index] - dc->reuse_index_array[0]);
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-}
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-
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-static int
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-ospf6_reuse_list_lookup (struct ospf6_damp_info *di)
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-{
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- struct ospf6_damp_info *info;
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-
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- for (info = dc->reuse_list_array[di->index]; info; info = info->next)
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- {
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- if (info == di)
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- return 1;
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- }
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- return 0;
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-}
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-
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-static void
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-ospf6_reuse_list_remove (struct ospf6_damp_info *di)
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-{
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- if (di->prev)
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- di->prev->next = di->next;
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- else
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- dc->reuse_list_array[di->index] = di->next;
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- if (di->next)
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- di->next->prev = di->prev;
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-
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- di->index = -1;
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- di->prev = NULL;
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- di->next = NULL;
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-}
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-
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-static void
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-ospf6_reuse_list_add (struct ospf6_damp_info *di)
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-{
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- /* set the index of reuse-array */
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- di->index = (reuse_array_offset + (ospf6_damp_reuse_index (di->penalty)))
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- % dc->reuse_list_size;
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-
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- /* insert to the head of the reuse list */
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- di->next = dc->reuse_list_array[di->index];
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- if (di->next)
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- di->next->prev = di;
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- di->prev = NULL;
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- dc->reuse_list_array[di->index] = di;
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-}
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-
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-/* When we quit damping for a target, we should execute proper event
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- which have been postponed during damping */
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-static void
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-ospf6_damp_stop (struct ospf6_damp_info *di)
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-{
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- time_t t_now;
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- char namebuf[64];
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- struct timeval now;
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-
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- if (IS_OSPF6_DEBUG_DAMP)
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- {
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- t_now = time (NULL);
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- prefix2str (&di->name, namebuf, sizeof (namebuf));
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- gettimeofday (&now, NULL);
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- zlog_info ("DAMP: %lu.%06lu stop damping: %ld: type: %d, name: %s",
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- now.tv_sec, now.tv_usec,
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- (long)t_now, di->type, namebuf);
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- }
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-
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- /* set flag indicates that we're damping this target */
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- di->damping = OFF;
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-
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- /* if the target's current status differ from that it should be,
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- execute the proper event to repair his status */
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- if (di->target_status != di->event_type)
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- {
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- (*(di->event)) (di->target);
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- di->target_status = di->event_type;
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-
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- di->event = NULL;
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- di->event_type = event_none;
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- }
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-}
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-
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-/* ospf6_reuse_timer is called every DELTA_REUSE seconds.
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- Each route in the current reuse-list is evaluated
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- and is used or requeued */
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-int
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-ospf6_damp_reuse_timer (struct thread *t)
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-{
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- struct ospf6_damp_info *di, *next;
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- time_t t_now, t_diff;
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- char namebuf[64];
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- struct timeval now;
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-
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- /* Restart the reuse timer */
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- ospf6_reuse_thread =
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- thread_add_timer (master, ospf6_damp_reuse_timer, NULL, dc->delta_reuse);
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-
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- t_now = time (NULL);
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-
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- /* get the damp info list head */
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- di = dc->reuse_list_array[reuse_array_offset];
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- dc->reuse_list_array[reuse_array_offset] = NULL;
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-
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- /* rotate the circular reuse list head array */
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- reuse_array_offset = (reuse_array_offset + 1) % dc->reuse_list_size;
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-
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- /* for each damp info */
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- while (di)
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- {
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- next = di->next;
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- di->next = NULL;
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-
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- /* Update penalty */
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- t_diff = t_now - di->t_updated;
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- di->t_updated = t_now;
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- di->penalty = (int)
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- ((double) di->penalty * ospf6_damp_decay (t_diff));
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- /* configration of ceiling may be just changed */
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- if (di->penalty > dc->ceiling)
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- di->penalty = dc->ceiling;
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-
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- if (IS_OSPF6_DEBUG_DAMP)
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- {
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- prefix2str (&di->name, namebuf, sizeof (namebuf));
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- gettimeofday (&now, NULL);
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- zlog_info ("DAMP: %lu.%06lu update penalty: type: %d, name: %s, penalty: %d",
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- now.tv_sec, now.tv_usec,
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- di->type, namebuf, di->penalty);
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- }
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-
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- /* If the penalty becomes under reuse,
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- call real event that we have been postponed. */
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- if (di->penalty < dc->reuse && di->damping == ON)
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- ospf6_damp_stop (di);
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-
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- /* If the penalty becomes less than the half of the
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- reuse value, this damp info will be freed from reuse-list,
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- by assuming that it is considered to be stable enough already,
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- and there's no need to maintain flapping history for this. */
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- if (di->penalty <= dc->reuse / 2)
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- {
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- ospf6_damp_delete (di->type, &di->name);
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- di = next;
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- continue;
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- }
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-
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- /* re-insert to the reuse-list */
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- ospf6_reuse_list_add (di);
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-
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- di = next;
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- }
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-
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- return 0;
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-}
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-
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-static void
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-ospf6_damp_event (damp_event_t event_type,
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- u_short type, struct prefix *name,
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- int (*event) (void *), void *target)
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-{
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- time_t t_now, t_diff;
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- struct ospf6_damp_info *di;
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- char namebuf[64];
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- struct timeval now;
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-
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- if (dc->enabled == OFF)
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- {
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- (*event) (target);
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- return;
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- }
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-
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- di = ospf6_damp_lookup (type, name);
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- if (! di)
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- di = ospf6_damp_create (type, name);
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-
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- t_now = time (NULL);
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-
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- di->event = event;
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- di->target = target;
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- di->event_type = event_type;
|
|
|
-
|
|
|
- if (! ospf6_reuse_list_lookup (di))
|
|
|
- di->t_start = t_now;
|
|
|
- else
|
|
|
- {
|
|
|
- ospf6_reuse_list_remove (di);
|
|
|
-
|
|
|
- t_diff = t_now - di->t_updated;
|
|
|
- di->penalty = (int) (di->penalty * ospf6_damp_decay (t_diff));
|
|
|
- }
|
|
|
-
|
|
|
- /* penalty only on down event */
|
|
|
- if (event_type == event_down)
|
|
|
- {
|
|
|
- di->flap++;
|
|
|
- di->penalty += dc->default_penalty;
|
|
|
- }
|
|
|
-
|
|
|
- /* limit penalty up to ceiling */
|
|
|
- if (di->penalty > dc->ceiling)
|
|
|
- di->penalty = dc->ceiling;
|
|
|
-
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- {
|
|
|
- prefix2str (&di->name, namebuf, sizeof (namebuf));
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- zlog_info ("DAMP: %lu.%06lu update penalty: type: %d, name: %s, penalty: %d",
|
|
|
- now.tv_sec, now.tv_usec,
|
|
|
- di->type, namebuf, di->penalty);
|
|
|
- }
|
|
|
-
|
|
|
- /* if penalty < reuse, stop damping here */
|
|
|
- if (di->penalty < dc->reuse && di->damping == ON)
|
|
|
- {
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- {
|
|
|
- prefix2str (&di->name, namebuf, sizeof (namebuf));
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- zlog_info ("DAMP: %lu.%06lu stop damping: %ld: type: %d, name: %s",
|
|
|
- now.tv_sec, now.tv_usec,
|
|
|
- (long)t_now, di->type, namebuf);
|
|
|
- }
|
|
|
- di->damping = OFF;
|
|
|
- }
|
|
|
-
|
|
|
- /* if event == up and if penalty >= suppress , start damping here */
|
|
|
- if (di->event_type == event_up && di->penalty >= dc->suppress &&
|
|
|
- di->damping == OFF)
|
|
|
- {
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- {
|
|
|
- prefix2str (&di->name, namebuf, sizeof (namebuf));
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- zlog_info ("DAMP: %lu.%06lu start damping: %ld: type: %d, name: %s",
|
|
|
- now.tv_sec, now.tv_usec,
|
|
|
- (long)t_now, type, namebuf);
|
|
|
- }
|
|
|
- di->damping = ON;
|
|
|
- }
|
|
|
-
|
|
|
- /* execute event if we're not damping */
|
|
|
- if (di->damping == OFF)
|
|
|
- {
|
|
|
- (*(di->event)) (di->target);
|
|
|
- di->target_status = di->event_type;
|
|
|
- }
|
|
|
-
|
|
|
- /* if the penalty goes beyond suppress value, start damping */
|
|
|
- if (di->penalty >= dc->suppress && di->damping == OFF)
|
|
|
- {
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- {
|
|
|
- prefix2str (name, namebuf, sizeof (namebuf));
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- zlog_info ("DAMP: %lu.%06lu start damping: %ld: type: %d, name: %s",
|
|
|
- now.tv_sec, now.tv_usec,
|
|
|
- (long) t_now, type, namebuf);
|
|
|
- }
|
|
|
- di->damping = ON;
|
|
|
- }
|
|
|
-
|
|
|
- /* update last-updated-time field */
|
|
|
- di->t_updated = t_now;
|
|
|
-
|
|
|
- /* Insert it into the reuse list */
|
|
|
- ospf6_reuse_list_add (di);
|
|
|
-}
|
|
|
-
|
|
|
-void
|
|
|
-ospf6_damp_event_up (u_short type, struct prefix *name,
|
|
|
- int (*event) (void *), void *target)
|
|
|
-{
|
|
|
- struct timeval now;
|
|
|
-
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- zlog_info ("DAMP: Up Event at %lu.%06lu", now.tv_sec, now.tv_usec);
|
|
|
-
|
|
|
- ospf6_damp_event (event_up, type, name, event, target);
|
|
|
-}
|
|
|
-
|
|
|
-void
|
|
|
-ospf6_damp_event_down (u_short type, struct prefix *name,
|
|
|
- int (*event) (void *), void *target)
|
|
|
-{
|
|
|
- struct timeval now;
|
|
|
-
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- zlog_info ("DAMP: Down Event at %lu.%06lu", now.tv_sec, now.tv_usec);
|
|
|
-
|
|
|
- ospf6_damp_event (event_down, type, name, event, target);
|
|
|
-}
|
|
|
-
|
|
|
-int
|
|
|
-ospf6_damp_debug_thread (struct thread *thread)
|
|
|
-{
|
|
|
- int i;
|
|
|
- struct ospf6_damp_info *di;
|
|
|
- char buf[256];
|
|
|
- time_t t_now;
|
|
|
- struct timeval now;
|
|
|
-
|
|
|
- for (i = 0; i < dc->reuse_list_size; i++)
|
|
|
- {
|
|
|
- for (di = dc->reuse_list_array[i]; di; di = di->next)
|
|
|
- {
|
|
|
- t_now = time (NULL);
|
|
|
- gettimeofday (&now, NULL);
|
|
|
- prefix2str (&di->name, buf, sizeof (buf));
|
|
|
- zlog_info ("DAMP: %lu.%06lu %c %-32s penalty %7u",
|
|
|
- now.tv_sec, now.tv_usec,
|
|
|
- (di->damping == ON ? 'D' : 'A'), buf,
|
|
|
- (u_int) (di->penalty *
|
|
|
- ospf6_damp_decay (t_now - di->t_updated)));
|
|
|
- }
|
|
|
- }
|
|
|
- thread_add_timer (master, ospf6_damp_debug_thread, NULL, 1);
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-DEFUN (show_ipv6_ospf6_route_flapping,
|
|
|
- show_ipv6_ospf6_route_flapping_cmd,
|
|
|
- "show ipv6 ospf6 route flapping",
|
|
|
- SHOW_STR
|
|
|
- IP6_STR
|
|
|
- OSPF6_STR)
|
|
|
-{
|
|
|
- int i;
|
|
|
- struct ospf6_damp_info *di;
|
|
|
- char buf[256];
|
|
|
- time_t t_now;
|
|
|
-
|
|
|
- t_now = time (NULL);
|
|
|
- vty_out (vty, "%c %-32s %7s%s", ' ', "Prefix", "penalty", VTY_NEWLINE);
|
|
|
-
|
|
|
- for (i = 0; i < dc->reuse_list_size; i++)
|
|
|
- {
|
|
|
- for (di = dc->reuse_list_array[i]; di; di = di->next)
|
|
|
- {
|
|
|
- prefix2str (&di->name, buf, sizeof (buf));
|
|
|
- vty_out (vty, "%c %-32s %7u%s",
|
|
|
- (di->damping == ON ? 'D' : ' '), buf,
|
|
|
- (u_int) (di->penalty *
|
|
|
- ospf6_damp_decay (t_now - di->t_updated)),
|
|
|
- VTY_NEWLINE);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return CMD_SUCCESS;
|
|
|
-}
|
|
|
-
|
|
|
-DEFUN (ospf6_flap_damping_route,
|
|
|
- ospf6_flap_damping_route_cmd,
|
|
|
- "flap-damping route <0-4294967295> <0-4294967295> "
|
|
|
- "<0-4294967295> <0-4294967295>",
|
|
|
- "enable flap dampening\n"
|
|
|
- "enable route flap dampening\n"
|
|
|
- "half-life in second\n"
|
|
|
- "reuse value\n"
|
|
|
- "suppress value\n"
|
|
|
- "t-hold in second (maximum time that the target can be damped)\n"
|
|
|
- )
|
|
|
-{
|
|
|
- u_int half_life, reuse, suppress, t_hold;
|
|
|
-
|
|
|
- if (argc)
|
|
|
- {
|
|
|
- half_life = (u_int) strtoul (argv[0], NULL, 10);
|
|
|
- reuse = (u_int) strtoul (argv[1], NULL, 10);
|
|
|
- suppress = (u_int) strtoul (argv[2], NULL, 10);
|
|
|
- t_hold = (u_int) strtoul (argv[3], NULL, 10);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- half_life = (u_int) DEFAULT_HALF_LIFE;
|
|
|
- reuse = (u_int) DEFAULT_REUSE;
|
|
|
- suppress = (u_int) DEFAULT_SUPPRESS;
|
|
|
- t_hold = (u_int) DEFAULT_HALF_LIFE * 4;
|
|
|
- }
|
|
|
-
|
|
|
- if (reuse && suppress && reuse >= suppress)
|
|
|
- {
|
|
|
- vty_out (vty, "reuse value exceeded suppress value, failed%s\n",
|
|
|
- VTY_NEWLINE);
|
|
|
- return CMD_SUCCESS;
|
|
|
- }
|
|
|
-
|
|
|
- if (half_life && t_hold && half_life >= t_hold)
|
|
|
- {
|
|
|
- vty_out (vty, "half-life exceeded t-hold, failed%s\n", VTY_NEWLINE);
|
|
|
- return CMD_SUCCESS;
|
|
|
- }
|
|
|
-
|
|
|
- ospf6_damp_init_config (half_life, reuse, suppress, t_hold);
|
|
|
-
|
|
|
- if (ospf6_reuse_thread == NULL)
|
|
|
- ospf6_reuse_thread =
|
|
|
- thread_add_timer (master, ospf6_damp_reuse_timer, NULL, dc->delta_reuse);
|
|
|
-
|
|
|
- return CMD_SUCCESS;
|
|
|
-}
|
|
|
-
|
|
|
-DEFUN (show_ipv6_ospf6_damp_config,
|
|
|
- show_ipv6_ospf6_camp_config_cmd,
|
|
|
- "show ipv6 ospf6 damp config",
|
|
|
- SHOW_STR
|
|
|
- IP6_STR
|
|
|
- OSPF6_STR
|
|
|
- "Flap-dampening information\n"
|
|
|
- "shows dampening configuration\n"
|
|
|
- )
|
|
|
-{
|
|
|
- int i;
|
|
|
-
|
|
|
- vty_out (vty, "%10s %10s %10s %10s%s",
|
|
|
- "Half life", "Suppress", "Reuse", "T-hold",
|
|
|
- VTY_NEWLINE);
|
|
|
- vty_out (vty, "%10u %10u %10u %10u%s",
|
|
|
- dc->half_life, dc->suppress, dc->reuse, dc->t_hold,
|
|
|
- VTY_NEWLINE);
|
|
|
- vty_out (vty, "%s", VTY_NEWLINE);
|
|
|
-
|
|
|
- vty_out (vty, "Delta-t = %u%s", dc->delta_t, VTY_NEWLINE);
|
|
|
- vty_out (vty, "Delta-Reuse = %u%s", dc->delta_reuse, VTY_NEWLINE);
|
|
|
- vty_out (vty, "Default-Penalty = %u%s", dc->default_penalty, VTY_NEWLINE);
|
|
|
- vty_out (vty, "Ceiling = %u%s", dc->ceiling, VTY_NEWLINE);
|
|
|
- vty_out (vty, "ScaleFactor = %f%s", dc->scale_factor, VTY_NEWLINE);
|
|
|
-
|
|
|
- vty_out (vty, "DecayArray(%d) =%s", dc->decay_array_size, VTY_NEWLINE);
|
|
|
- for (i = 0; i < dc->decay_array_size; i++)
|
|
|
- {
|
|
|
- if (i % 10 == 0)
|
|
|
- vty_out (vty, " ");
|
|
|
- vty_out (vty, " %f", dc->decay_array[i]);
|
|
|
- if (i % 10 == 0)
|
|
|
- vty_out (vty, "%s", VTY_NEWLINE);
|
|
|
- }
|
|
|
- vty_out (vty, "%s", VTY_NEWLINE);
|
|
|
-
|
|
|
- vty_out (vty, "ReuseIndexArray(%d) =%s",
|
|
|
- dc->reuse_index_array_size, VTY_NEWLINE);
|
|
|
- for (i = 0; i < dc->reuse_index_array_size; i++)
|
|
|
- {
|
|
|
- if (i % 10 == 0)
|
|
|
- vty_out (vty, " ");
|
|
|
- vty_out (vty, " %d", dc->reuse_index_array[i]);
|
|
|
- if (i % 10 == 0)
|
|
|
- vty_out (vty, "%s", VTY_NEWLINE);
|
|
|
- }
|
|
|
- vty_out (vty, "%s", VTY_NEWLINE);
|
|
|
-
|
|
|
- return CMD_SUCCESS;
|
|
|
-}
|
|
|
-
|
|
|
-void
|
|
|
-ospf6_damp_config_write (struct vty *vty)
|
|
|
-{
|
|
|
- if (dc->enabled == ON)
|
|
|
- {
|
|
|
- vty_out (vty, " flap-damping route %u %u %u %u%s",
|
|
|
- dc->half_life, dc->reuse, dc->suppress, dc->t_hold,
|
|
|
- VTY_NEWLINE);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-DEFUN (debug_ospf6_damp,
|
|
|
- debug_ospf6_damp_cmd,
|
|
|
- "debug ospf6 damp",
|
|
|
- DEBUG_STR
|
|
|
- OSPF6_STR
|
|
|
- "Flap-dampening information\n"
|
|
|
- )
|
|
|
-{
|
|
|
- ospf6_damp_debug = 1;
|
|
|
- return CMD_SUCCESS;
|
|
|
-}
|
|
|
-
|
|
|
-DEFUN (no_debug_ospf6_damp,
|
|
|
- no_debug_ospf6_damp_cmd,
|
|
|
- "no debug ospf6 damp",
|
|
|
- NO_STR
|
|
|
- DEBUG_STR
|
|
|
- OSPF6_STR
|
|
|
- "Flap-dampening information\n"
|
|
|
- )
|
|
|
-{
|
|
|
- ospf6_damp_debug = 0;
|
|
|
- return CMD_SUCCESS;
|
|
|
-}
|
|
|
-
|
|
|
-DEFUN (show_debug_ospf6_damp,
|
|
|
- show_debug_ospf6_damp_cmd,
|
|
|
- "show debugging ospf6 damp",
|
|
|
- SHOW_STR
|
|
|
- DEBUG_STR
|
|
|
- OSPF6_STR
|
|
|
- "Flap-dampening information\n"
|
|
|
- )
|
|
|
-{
|
|
|
- vty_out (vty, "debugging ospf6 damp is ");
|
|
|
- if (IS_OSPF6_DEBUG_DAMP)
|
|
|
- vty_out (vty, "enabled.");
|
|
|
- else
|
|
|
- vty_out (vty, "disabled.");
|
|
|
- vty_out (vty, "%s", VTY_NEWLINE);
|
|
|
- return CMD_SUCCESS;
|
|
|
-}
|
|
|
-
|
|
|
-void
|
|
|
-ospf6_damp_init ()
|
|
|
-{
|
|
|
- int i;
|
|
|
- for (i = 0; i < OSPF6_DAMP_TYPE_MAX; i++)
|
|
|
- damp_info_table[i] = route_table_init ();
|
|
|
-
|
|
|
- install_element (VIEW_NODE, &show_ipv6_ospf6_route_flapping_cmd);
|
|
|
- install_element (ENABLE_NODE, &show_ipv6_ospf6_route_flapping_cmd);
|
|
|
- install_element (ENABLE_NODE, &show_ipv6_ospf6_camp_config_cmd);
|
|
|
- install_element (OSPF6_NODE, &ospf6_flap_damping_route_cmd);
|
|
|
-
|
|
|
- install_element (ENABLE_NODE, &show_debug_ospf6_damp_cmd);
|
|
|
- install_element (CONFIG_NODE, &debug_ospf6_damp_cmd);
|
|
|
- install_element (CONFIG_NODE, &no_debug_ospf6_damp_cmd);
|
|
|
-
|
|
|
- thread_add_event (master, ospf6_damp_debug_thread, NULL, 0);
|
|
|
-}
|
|
|
-
|
|
|
-#endif /* HAVE_OSPF6_DAMP */
|
|
|
-
|
|
|
-
|
hasso