isisd: API: timers (LSP, SPF)

See previous commits...

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

4 files changed, 585 insertions, 651 deletions

diff --git a/isisd/isis_circuit.c b/isisd/isis_circuit.c
index f53c08cfc..cac1065d4 100644
--- a/isisd/isis_circuit.c
+++ b/isisd/isis_circuit.c
@@ -196,30 +196,6 @@ circuit_scan_by_ifp (struct interface *ifp)
   return circuit_lookup_by_ifp (ifp, isis->init_circ_list);
 }
 
-static struct isis_circuit *
-isis_circuit_lookup (struct vty *vty)
-{
-  struct interface *ifp;
-  struct isis_circuit *circuit;
-
-  ifp = (struct interface *) vty->index;
-  if (!ifp)
-    {
-      vty_out (vty, "Invalid interface %s", VTY_NEWLINE);
-      return NULL;
-    }
-
-  circuit = circuit_scan_by_ifp (ifp);
-  if (!circuit)
-    {
-      vty_out (vty, "ISIS is not enabled on circuit %s%s",
-               ifp->name, VTY_NEWLINE);
-      return NULL;
-    }
-
-  return circuit;
-}
-
 void
 isis_circuit_add_addr (struct isis_circuit *circuit,
 		       struct connected *connected)
diff --git a/isisd/isis_vty.c b/isisd/isis_vty.c
index ef910df9f..be4150430 100644
--- a/isisd/isis_vty.c
+++ b/isisd/isis_vty.c
@@ -1640,6 +1640,531 @@ DEFUN (no_is_type,
   return CMD_SUCCESS;
 }
 
+static int
+set_lsp_gen_interval (struct vty *vty, struct isis_area *area,
+                      uint16_t interval, int level)
+{
+  int lvl;
+
+  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
+    {
+      if (!(lvl & level))
+        continue;
+
+      if (interval >= area->lsp_refresh[lvl-1])
+        {
+          vty_out (vty, "LSP gen interval %us must be less than "
+                   "the LSP refresh interval %us%s",
+                   interval, area->lsp_refresh[lvl-1], VTY_NEWLINE);
+          return CMD_ERR_AMBIGUOUS;
+        }
+    }
+
+  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
+    {
+      if (!(lvl & level))
+        continue;
+      area->lsp_gen_interval[lvl-1] = interval;
+    }
+
+  return CMD_SUCCESS;
+}
+
+DEFUN (lsp_gen_interval,
+       lsp_gen_interval_cmd,
+       "lsp-gen-interval <1-120>",
+       "Minimum interval between regenerating same LSP\n"
+       "Minimum interval in seconds\n")
+{
+  struct isis_area *area;
+  uint16_t interval;
+  int level;
+
+  area = vty->index;
+  interval = atoi (argv[0]);
+  level = IS_LEVEL_1 | IS_LEVEL_2;
+  return set_lsp_gen_interval (vty, area, interval, level);
+}
+
+DEFUN (no_lsp_gen_interval,
+       no_lsp_gen_interval_cmd,
+       "no lsp-gen-interval",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n")
+{
+  struct isis_area *area;
+  uint16_t interval;
+  int level;
+
+  area = vty->index;
+  interval = DEFAULT_MIN_LSP_GEN_INTERVAL;
+  level = IS_LEVEL_1 | IS_LEVEL_2;
+  return set_lsp_gen_interval (vty, area, interval, level);
+}
+
+ALIAS (no_lsp_gen_interval,
+       no_lsp_gen_interval_arg_cmd,
+       "no lsp-gen-interval <1-120>",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n"
+       "Minimum interval in seconds\n")
+
+DEFUN (lsp_gen_interval_l1,
+       lsp_gen_interval_l1_cmd,
+       "lsp-gen-interval level-1 <1-120>",
+       "Minimum interval between regenerating same LSP\n"
+       "Set interval for level 1 only\n"
+       "Minimum interval in seconds\n")
+{
+  struct isis_area *area;
+  uint16_t interval;
+  int level;
+
+  area = vty->index;
+  interval = atoi (argv[0]);
+  level = IS_LEVEL_1;
+  return set_lsp_gen_interval (vty, area, interval, level);
+}
+
+DEFUN (no_lsp_gen_interval_l1,
+       no_lsp_gen_interval_l1_cmd,
+       "no lsp-gen-interval level-1",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n"
+       "Set interval for level 1 only\n")
+{
+  struct isis_area *area;
+  uint16_t interval;
+  int level;
+
+  area = vty->index;
+  interval = DEFAULT_MIN_LSP_GEN_INTERVAL;
+  level = IS_LEVEL_1;
+  return set_lsp_gen_interval (vty, area, interval, level);
+}
+
+ALIAS (no_lsp_gen_interval_l1,
+       no_lsp_gen_interval_l1_arg_cmd,
+       "no lsp-gen-interval level-1 <1-120>",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n"
+       "Set interval for level 1 only\n"
+       "Minimum interval in seconds\n")
+
+DEFUN (lsp_gen_interval_l2,
+       lsp_gen_interval_l2_cmd,
+       "lsp-gen-interval level-2 <1-120>",
+       "Minimum interval between regenerating same LSP\n"
+       "Set interval for level 2 only\n"
+       "Minimum interval in seconds\n")
+{
+  struct isis_area *area;
+  uint16_t interval;
+  int level;
+
+  area = vty->index;
+  interval = atoi (argv[0]);
+  level = IS_LEVEL_2;
+  return set_lsp_gen_interval (vty, area, interval, level);
+}
+
+DEFUN (no_lsp_gen_interval_l2,
+       no_lsp_gen_interval_l2_cmd,
+       "no lsp-gen-interval level-2",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n"
+       "Set interval for level 2 only\n")
+{
+  struct isis_area *area;
+  uint16_t interval;
+  int level;
+
+  area = vty->index;
+  interval = DEFAULT_MIN_LSP_GEN_INTERVAL;
+  level = IS_LEVEL_2;
+  return set_lsp_gen_interval (vty, area, interval, level);
+}
+
+ALIAS (no_lsp_gen_interval_l2,
+       no_lsp_gen_interval_l2_arg_cmd,
+       "no lsp-gen-interval level-2 <1-120>",
+       NO_STR
+       "Minimum interval between regenerating same LSP\n"
+       "Set interval for level 2 only\n"
+       "Minimum interval in seconds\n")
+
+DEFUN (spf_interval,
+       spf_interval_cmd,
+       "spf-interval <1-120>",
+       "Minimum interval between SPF calculations\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+{
+  struct isis_area *area;
+  u_int16_t interval;
+
+  area = vty->index;
+  interval = atoi (argv[0]);
+  area->min_spf_interval[0] = interval;
+  area->min_spf_interval[1] = interval;
+
+  return CMD_SUCCESS;
+}
+
+DEFUN (no_spf_interval,
+       no_spf_interval_cmd,
+       "no spf-interval",
+       NO_STR
+       "Minimum interval between SPF calculations\n")
+{
+  struct isis_area *area;
+
+  area = vty->index;
+
+  area->min_spf_interval[0] = MINIMUM_SPF_INTERVAL;
+  area->min_spf_interval[1] = MINIMUM_SPF_INTERVAL;
+
+  return CMD_SUCCESS;
+}
+
+ALIAS (no_spf_interval,
+       no_spf_interval_arg_cmd,
+       "no spf-interval <1-120>",
+       NO_STR
+       "Minimum interval between SPF calculations\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+
+DEFUN (spf_interval_l1,
+       spf_interval_l1_cmd,
+       "spf-interval level-1 <1-120>",
+       "Minimum interval between SPF calculations\n"
+       "Set interval for level 1 only\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+{
+  struct isis_area *area;
+  u_int16_t interval;
+
+  area = vty->index;
+  interval = atoi (argv[0]);
+  area->min_spf_interval[0] = interval;
+
+  return CMD_SUCCESS;
+}
+
+DEFUN (no_spf_interval_l1,
+       no_spf_interval_l1_cmd,
+       "no spf-interval level-1",
+       NO_STR
+       "Minimum interval between SPF calculations\n"
+       "Set interval for level 1 only\n")
+{
+  struct isis_area *area;
+
+  area = vty->index;
+
+  area->min_spf_interval[0] = MINIMUM_SPF_INTERVAL;
+
+  return CMD_SUCCESS;
+}
+
+ALIAS (no_spf_interval,
+       no_spf_interval_l1_arg_cmd,
+       "no spf-interval level-1 <1-120>",
+       NO_STR
+       "Minimum interval between SPF calculations\n"
+       "Set interval for level 1 only\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+
+DEFUN (spf_interval_l2,
+       spf_interval_l2_cmd,
+       "spf-interval level-2 <1-120>",
+       "Minimum interval between SPF calculations\n"
+       "Set interval for level 2 only\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+{
+  struct isis_area *area;
+  u_int16_t interval;
+
+  area = vty->index;
+  interval = atoi (argv[0]);
+  area->min_spf_interval[1] = interval;
+
+  return CMD_SUCCESS;
+}
+
+DEFUN (no_spf_interval_l2,
+       no_spf_interval_l2_cmd,
+       "no spf-interval level-2",
+       NO_STR
+       "Minimum interval between SPF calculations\n"
+       "Set interval for level 2 only\n")
+{
+  struct isis_area *area;
+
+  area = vty->index;
+
+  area->min_spf_interval[1] = MINIMUM_SPF_INTERVAL;
+
+  return CMD_SUCCESS;
+}
+
+ALIAS (no_spf_interval,
+       no_spf_interval_l2_arg_cmd,
+       "no spf-interval level-2 <1-120>",
+       NO_STR
+       "Minimum interval between SPF calculations\n"
+       "Set interval for level 2 only\n"
+       "Minimum interval between consecutive SPFs in seconds\n")
+
+static int
+area_max_lsp_lifetime_set(struct vty *vty, int level,
+			  uint16_t interval)
+{
+  struct isis_area *area = vty->index;
+  int lvl;
+  uint16_t refresh_interval = interval - 300;
+  int set_refresh_interval[ISIS_LEVELS] = {0, 0};
+
+  if (!area)
+    {
+      vty_out (vty, "Can't find ISIS instance %s", VTY_NEWLINE);
+      return CMD_ERR_NO_MATCH;
+    }
+
+  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; lvl++)
+    {
+      if (!(lvl & level))
+        continue;
+
+      if (refresh_interval < area->lsp_refresh[lvl-1])
+        {
+          vty_out (vty, "Level %d Max LSP lifetime %us must be 300s greater than "
+                   "the configured LSP refresh interval %us%s",
+                   lvl, interval, area->lsp_refresh[lvl-1], VTY_NEWLINE);
+          vty_out (vty, "Automatically reducing level %d LSP refresh interval "
+                   "to %us%s", lvl, refresh_interval, VTY_NEWLINE);
+          set_refresh_interval[lvl-1] = 1;
+
+          if (refresh_interval <= area->lsp_gen_interval[lvl-1])
+            {
+              vty_out (vty, "LSP refresh interval %us must be greater than "
+                       "the configured LSP gen interval %us%s",
+                       refresh_interval, area->lsp_gen_interval[lvl-1],
+                       VTY_NEWLINE);
+              return CMD_ERR_AMBIGUOUS;
+            }
+        }
+    }
+
+  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; lvl++)
+    {
+      if (!(lvl & level))
+        continue;
+      isis_area_max_lsp_lifetime_set(area, lvl, interval);
+      if (set_refresh_interval[lvl-1])
+        isis_area_lsp_refresh_set(area, lvl, refresh_interval);
+    }
+
+  return CMD_SUCCESS;
+}
+
+DEFUN (max_lsp_lifetime,
+       max_lsp_lifetime_cmd,
+       "max-lsp-lifetime <350-65535>",
+       "Maximum LSP lifetime\n"
+       "LSP lifetime in seconds\n")
+{
+  return area_max_lsp_lifetime_set(vty, IS_LEVEL_1_AND_2, atoi(argv[0]));
+}
+
+DEFUN (no_max_lsp_lifetime,
+       no_max_lsp_lifetime_cmd,
+       "no max-lsp-lifetime",
+       NO_STR
+       "LSP lifetime in seconds\n")
+{
+  return area_max_lsp_lifetime_set(vty, IS_LEVEL_1_AND_2,
+				   DEFAULT_LSP_LIFETIME);
+}
+
+ALIAS (no_max_lsp_lifetime,
+       no_max_lsp_lifetime_arg_cmd,
+       "no max-lsp-lifetime <350-65535>",
+       NO_STR
+       "Maximum LSP lifetime\n"
+       "LSP lifetime in seconds\n")
+
+DEFUN (max_lsp_lifetime_l1,
+       max_lsp_lifetime_l1_cmd,
+       "max-lsp-lifetime level-1 <350-65535>",
+       "Maximum LSP lifetime for Level 1 only\n"
+       "LSP lifetime for Level 1 only in seconds\n")
+{
+  return area_max_lsp_lifetime_set(vty, IS_LEVEL_1, atoi(argv[0]));
+}
+
+DEFUN (no_max_lsp_lifetime_l1,
+       no_max_lsp_lifetime_l1_cmd,
+       "no max-lsp-lifetime level-1",
+       NO_STR
+       "LSP lifetime for Level 1 only in seconds\n")
+{
+  return area_max_lsp_lifetime_set(vty, IS_LEVEL_1, DEFAULT_LSP_LIFETIME);
+}
+
+ALIAS (no_max_lsp_lifetime_l1,
+       no_max_lsp_lifetime_l1_arg_cmd,
+       "no max-lsp-lifetime level-1 <350-65535>",
+       NO_STR
+       "Maximum LSP lifetime for Level 1 only\n"
+       "LSP lifetime for Level 1 only in seconds\n")
+
+DEFUN (max_lsp_lifetime_l2,
+       max_lsp_lifetime_l2_cmd,
+       "max-lsp-lifetime level-2 <350-65535>",
+       "Maximum LSP lifetime for Level 2 only\n"
+       "LSP lifetime for Level 2 only in seconds\n")
+{
+  return area_max_lsp_lifetime_set(vty, IS_LEVEL_2, atoi(argv[0]));
+}
+
+DEFUN (no_max_lsp_lifetime_l2,
+       no_max_lsp_lifetime_l2_cmd,
+       "no max-lsp-lifetime level-2",
+       NO_STR
+       "LSP lifetime for Level 2 only in seconds\n")
+{
+  return area_max_lsp_lifetime_set(vty, IS_LEVEL_2, DEFAULT_LSP_LIFETIME);
+}
+
+ALIAS (no_max_lsp_lifetime_l2,
+       no_max_lsp_lifetime_l2_arg_cmd,
+       "no max-lsp-lifetime level-2 <350-65535>",
+       NO_STR
+       "Maximum LSP lifetime for Level 2 only\n"
+       "LSP lifetime for Level 2 only in seconds\n")
+
+static int
+area_lsp_refresh_interval_set(struct vty *vty, int level, uint16_t interval)
+{
+  struct isis_area *area = vty->index;
+  int lvl;
+
+  if (!area)
+    {
+      vty_out (vty, "Can't find ISIS instance %s", VTY_NEWLINE);
+      return CMD_ERR_NO_MATCH;
+    }
+
+  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
+    {
+      if (!(lvl & level))
+        continue;
+      if (interval <= area->lsp_gen_interval[lvl-1])
+        {
+          vty_out (vty, "LSP refresh interval %us must be greater than "
+                   "the configured LSP gen interval %us%s",
+                   interval, area->lsp_gen_interval[lvl-1],
+                   VTY_NEWLINE);
+          return CMD_ERR_AMBIGUOUS;
+        }
+      if (interval > (area->max_lsp_lifetime[lvl-1] - 300))
+        {
+          vty_out (vty, "LSP refresh interval %us must be less than "
+                   "the configured LSP lifetime %us less 300%s",
+                   interval, area->max_lsp_lifetime[lvl-1],
+                   VTY_NEWLINE);
+          return CMD_ERR_AMBIGUOUS;
+        }
+    }
+
+  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
+    {
+      if (!(lvl & level))
+        continue;
+      isis_area_lsp_refresh_set(area, lvl, interval);
+    }
+
+  return CMD_SUCCESS;
+}
+
+DEFUN (lsp_refresh_interval,
+       lsp_refresh_interval_cmd,
+       "lsp-refresh-interval <1-65235>",
+       "LSP refresh interval\n"
+       "LSP refresh interval in seconds\n")
+{
+  return area_lsp_refresh_interval_set(vty, IS_LEVEL_1_AND_2, atoi(argv[0]));
+}
+
+DEFUN (no_lsp_refresh_interval,
+       no_lsp_refresh_interval_cmd,
+       "no lsp-refresh-interval",
+       NO_STR
+       "LSP refresh interval in seconds\n")
+{
+  return area_lsp_refresh_interval_set(vty, IS_LEVEL_1_AND_2,
+				       DEFAULT_MAX_LSP_GEN_INTERVAL);
+}
+
+ALIAS (no_lsp_refresh_interval,
+       no_lsp_refresh_interval_arg_cmd,
+       "no lsp-refresh-interval <1-65235>",
+       NO_STR
+       "LSP refresh interval\n"
+       "LSP refresh interval in seconds\n")
+
+DEFUN (lsp_refresh_interval_l1,
+       lsp_refresh_interval_l1_cmd,
+       "lsp-refresh-interval level-1 <1-65235>",
+       "LSP refresh interval for Level 1 only\n"
+       "LSP refresh interval for Level 1 only in seconds\n")
+{
+  return area_lsp_refresh_interval_set(vty, IS_LEVEL_1, atoi(argv[0]));
+}
+
+DEFUN (no_lsp_refresh_interval_l1,
+       no_lsp_refresh_interval_l1_cmd,
+       "no lsp-refresh-interval level-1",
+       NO_STR
+       "LSP refresh interval for Level 1 only in seconds\n")
+{
+  return area_lsp_refresh_interval_set(vty, IS_LEVEL_1,
+				       DEFAULT_MAX_LSP_GEN_INTERVAL);
+}
+
+ALIAS (no_lsp_refresh_interval_l1,
+       no_lsp_refresh_interval_l1_arg_cmd,
+       "no lsp-refresh-interval level-1 <1-65235>",
+       NO_STR
+       "LSP refresh interval for Level 1 only\n"
+       "LSP refresh interval for Level 1 only in seconds\n")
+
+DEFUN (lsp_refresh_interval_l2,
+       lsp_refresh_interval_l2_cmd,
+       "lsp-refresh-interval level-2 <1-65235>",
+       "LSP refresh interval for Level 2 only\n"
+       "LSP refresh interval for Level 2 only in seconds\n")
+{
+  return area_lsp_refresh_interval_set(vty, IS_LEVEL_2, atoi(argv[0]));
+}
+
+DEFUN (no_lsp_refresh_interval_l2,
+       no_lsp_refresh_interval_l2_cmd,
+       "no lsp-refresh-interval level-2",
+       NO_STR
+       "LSP refresh interval for Level 2 only in seconds\n")
+{
+  return area_lsp_refresh_interval_set(vty, IS_LEVEL_2,
+				       DEFAULT_MAX_LSP_GEN_INTERVAL);
+}
+
+ALIAS (no_lsp_refresh_interval_l2,
+       no_lsp_refresh_interval_l2_arg_cmd,
+       "no lsp-refresh-interval level-2 <1-65235>",
+       NO_STR
+       "LSP refresh interval for Level 2 only\n"
+       "LSP refresh interval for Level 2 only in seconds\n")
+
 void
 isis_vty_init (void)
 {
@@ -1740,4 +2265,44 @@ isis_vty_init (void)
 
   install_element (ISIS_NODE, &is_type_cmd);
   install_element (ISIS_NODE, &no_is_type_cmd);
+
+  install_element (ISIS_NODE, &lsp_gen_interval_cmd);
+  install_element (ISIS_NODE, &no_lsp_gen_interval_cmd);
+  install_element (ISIS_NODE, &no_lsp_gen_interval_arg_cmd);
+  install_element (ISIS_NODE, &lsp_gen_interval_l1_cmd);
+  install_element (ISIS_NODE, &no_lsp_gen_interval_l1_cmd);
+  install_element (ISIS_NODE, &no_lsp_gen_interval_l1_arg_cmd);
+  install_element (ISIS_NODE, &lsp_gen_interval_l2_cmd);
+  install_element (ISIS_NODE, &no_lsp_gen_interval_l2_cmd);
+  install_element (ISIS_NODE, &no_lsp_gen_interval_l2_arg_cmd);
+
+  install_element (ISIS_NODE, &spf_interval_cmd);
+  install_element (ISIS_NODE, &no_spf_interval_cmd);
+  install_element (ISIS_NODE, &no_spf_interval_arg_cmd);
+  install_element (ISIS_NODE, &spf_interval_l1_cmd);
+  install_element (ISIS_NODE, &no_spf_interval_l1_cmd);
+  install_element (ISIS_NODE, &no_spf_interval_l1_arg_cmd);
+  install_element (ISIS_NODE, &spf_interval_l2_cmd);
+  install_element (ISIS_NODE, &no_spf_interval_l2_cmd);
+  install_element (ISIS_NODE, &no_spf_interval_l2_arg_cmd);
+
+  install_element (ISIS_NODE, &max_lsp_lifetime_cmd);
+  install_element (ISIS_NODE, &no_max_lsp_lifetime_cmd);
+  install_element (ISIS_NODE, &no_max_lsp_lifetime_arg_cmd);
+  install_element (ISIS_NODE, &max_lsp_lifetime_l1_cmd);
+  install_element (ISIS_NODE, &no_max_lsp_lifetime_l1_cmd);
+  install_element (ISIS_NODE, &no_max_lsp_lifetime_l1_arg_cmd);
+  install_element (ISIS_NODE, &max_lsp_lifetime_l2_cmd);
+  install_element (ISIS_NODE, &no_max_lsp_lifetime_l2_cmd);
+  install_element (ISIS_NODE, &no_max_lsp_lifetime_l2_arg_cmd);
+
+  install_element (ISIS_NODE, &lsp_refresh_interval_cmd);
+  install_element (ISIS_NODE, &no_lsp_refresh_interval_cmd);
+  install_element (ISIS_NODE, &no_lsp_refresh_interval_arg_cmd);
+  install_element (ISIS_NODE, &lsp_refresh_interval_l1_cmd);
+  install_element (ISIS_NODE, &no_lsp_refresh_interval_l1_cmd);
+  install_element (ISIS_NODE, &no_lsp_refresh_interval_l1_arg_cmd);
+  install_element (ISIS_NODE, &lsp_refresh_interval_l2_cmd);
+  install_element (ISIS_NODE, &no_lsp_refresh_interval_l2_cmd);
+  install_element (ISIS_NODE, &no_lsp_refresh_interval_l2_arg_cmd);
 }
diff --git a/isisd/isisd.c b/isisd/isisd.c
index bcb16b8e6..4df38082a 100644
--- a/isisd/isisd.c
+++ b/isisd/isisd.c
@@ -2007,159 +2007,6 @@ isis_area_is_type_set(struct isis_area *area, int is_type)
   return;
 }
 
-static int
-set_lsp_gen_interval (struct vty *vty, struct isis_area *area,
-                      uint16_t interval, int level)
-{
-  int lvl;
-
-  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
-    {
-      if (!(lvl & level))
-        continue;
-
-      if (interval >= area->lsp_refresh[lvl-1])
-        {
-          vty_out (vty, "LSP gen interval %us must be less than "
-                   "the LSP refresh interval %us%s",
-                   interval, area->lsp_refresh[lvl-1], VTY_NEWLINE);
-          return CMD_ERR_AMBIGUOUS;
-        }
-    }
-
-  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
-    {
-      if (!(lvl & level))
-        continue;
-      area->lsp_gen_interval[lvl-1] = interval;
-    }
-
-  return CMD_SUCCESS;
-}
-
-DEFUN (lsp_gen_interval,
-       lsp_gen_interval_cmd,
-       "lsp-gen-interval <1-120>",
-       "Minimum interval between regenerating same LSP\n"
-       "Minimum interval in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_1 | IS_LEVEL_2;
-  return set_lsp_gen_interval (vty, area, interval, level);
-}
-
-DEFUN (no_lsp_gen_interval,
-       no_lsp_gen_interval_cmd,
-       "no lsp-gen-interval",
-       NO_STR
-       "Minimum interval between regenerating same LSP\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_MIN_LSP_GEN_INTERVAL;
-  level = IS_LEVEL_1 | IS_LEVEL_2;
-  return set_lsp_gen_interval (vty, area, interval, level);
-}
-
-ALIAS (no_lsp_gen_interval,
-       no_lsp_gen_interval_arg_cmd,
-       "no lsp-gen-interval <1-120>",
-       NO_STR
-       "Minimum interval between regenerating same LSP\n"
-       "Minimum interval in seconds\n")
-
-DEFUN (lsp_gen_interval_l1,
-       lsp_gen_interval_l1_cmd,
-       "lsp-gen-interval level-1 <1-120>",
-       "Minimum interval between regenerating same LSP\n"
-       "Set interval for level 1 only\n"
-       "Minimum interval in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_1;
-  return set_lsp_gen_interval (vty, area, interval, level);
-}
-
-DEFUN (no_lsp_gen_interval_l1,
-       no_lsp_gen_interval_l1_cmd,
-       "no lsp-gen-interval level-1",
-       NO_STR
-       "Minimum interval between regenerating same LSP\n"
-       "Set interval for level 1 only\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_MIN_LSP_GEN_INTERVAL;
-  level = IS_LEVEL_1;
-  return set_lsp_gen_interval (vty, area, interval, level);
-}
-
-ALIAS (no_lsp_gen_interval_l1,
-       no_lsp_gen_interval_l1_arg_cmd,
-       "no lsp-gen-interval level-1 <1-120>",
-       NO_STR
-       "Minimum interval between regenerating same LSP\n"
-       "Set interval for level 1 only\n"
-       "Minimum interval in seconds\n")
-
-DEFUN (lsp_gen_interval_l2,
-       lsp_gen_interval_l2_cmd,
-       "lsp-gen-interval level-2 <1-120>",
-       "Minimum interval between regenerating same LSP\n"
-       "Set interval for level 2 only\n"
-       "Minimum interval in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_2;
-  return set_lsp_gen_interval (vty, area, interval, level);
-}
-
-DEFUN (no_lsp_gen_interval_l2,
-       no_lsp_gen_interval_l2_cmd,
-       "no lsp-gen-interval level-2",
-       NO_STR
-       "Minimum interval between regenerating same LSP\n"
-       "Set interval for level 2 only\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_MIN_LSP_GEN_INTERVAL;
-  level = IS_LEVEL_2;
-  return set_lsp_gen_interval (vty, area, interval, level);
-}
-
-ALIAS (no_lsp_gen_interval_l2,
-       no_lsp_gen_interval_l2_arg_cmd,
-       "no lsp-gen-interval level-2 <1-120>",
-       NO_STR
-       "Minimum interval between regenerating same LSP\n"
-       "Set interval for level 2 only\n"
-       "Minimum interval in seconds\n")
-
 void isis_area_metricstyle_set(struct isis_area *area, bool old_metric,
 			       bool new_metric)
 {
@@ -2203,450 +2050,32 @@ void isis_area_dynhostname_set(struct isis_area *area, bool dynhostname)
     }
 }
 
-DEFUN (spf_interval,
-       spf_interval_cmd,
-       "spf-interval <1-120>",
-       "Minimum interval between SPF calculations\n"
-       "Minimum interval between consecutive SPFs in seconds\n")
-{
-  struct isis_area *area;
-  u_int16_t interval;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  area->min_spf_interval[0] = interval;
-  area->min_spf_interval[1] = interval;
-
-  return CMD_SUCCESS;
-}
-
-DEFUN (no_spf_interval,
-       no_spf_interval_cmd,
-       "no spf-interval",
-       NO_STR
-       "Minimum interval between SPF calculations\n")
-{
-  struct isis_area *area;
-
-  area = vty->index;
-
-  area->min_spf_interval[0] = MINIMUM_SPF_INTERVAL;
-  area->min_spf_interval[1] = MINIMUM_SPF_INTERVAL;
-
-  return CMD_SUCCESS;
-}
-
-ALIAS (no_spf_interval,
-       no_spf_interval_arg_cmd,
-       "no spf-interval <1-120>",
-       NO_STR
-       "Minimum interval between SPF calculations\n"
-       "Minimum interval between consecutive SPFs in seconds\n")
-
-DEFUN (spf_interval_l1,
-       spf_interval_l1_cmd,
-       "spf-interval level-1 <1-120>",
-       "Minimum interval between SPF calculations\n"
-       "Set interval for level 1 only\n"
-       "Minimum interval between consecutive SPFs in seconds\n")
-{
-  struct isis_area *area;
-  u_int16_t interval;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  area->min_spf_interval[0] = interval;
-
-  return CMD_SUCCESS;
-}
-
-DEFUN (no_spf_interval_l1,
-       no_spf_interval_l1_cmd,
-       "no spf-interval level-1",
-       NO_STR
-       "Minimum interval between SPF calculations\n"
-       "Set interval for level 1 only\n")
-{
-  struct isis_area *area;
-
-  area = vty->index;
-
-  area->min_spf_interval[0] = MINIMUM_SPF_INTERVAL;
-
-  return CMD_SUCCESS;
-}
-
-ALIAS (no_spf_interval,
-       no_spf_interval_l1_arg_cmd,
-       "no spf-interval level-1 <1-120>",
-       NO_STR
-       "Minimum interval between SPF calculations\n"
-       "Set interval for level 1 only\n"
-       "Minimum interval between consecutive SPFs in seconds\n")
-
-DEFUN (spf_interval_l2,
-       spf_interval_l2_cmd,
-       "spf-interval level-2 <1-120>",
-       "Minimum interval between SPF calculations\n"
-       "Set interval for level 2 only\n"
-       "Minimum interval between consecutive SPFs in seconds\n")
-{
-  struct isis_area *area;
-  u_int16_t interval;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  area->min_spf_interval[1] = interval;
-
-  return CMD_SUCCESS;
-}
-
-DEFUN (no_spf_interval_l2,
-       no_spf_interval_l2_cmd,
-       "no spf-interval level-2",
-       NO_STR
-       "Minimum interval between SPF calculations\n"
-       "Set interval for level 2 only\n")
-{
-  struct isis_area *area;
-
-  area = vty->index;
-
-  area->min_spf_interval[1] = MINIMUM_SPF_INTERVAL;
-
-  return CMD_SUCCESS;
-}
-
-ALIAS (no_spf_interval,
-       no_spf_interval_l2_arg_cmd,
-       "no spf-interval level-2 <1-120>",
-       NO_STR
-       "Minimum interval between SPF calculations\n"
-       "Set interval for level 2 only\n"
-       "Minimum interval between consecutive SPFs in seconds\n")
-
-static int
-set_lsp_max_lifetime (struct vty *vty, struct isis_area *area,
-                      uint16_t interval, int level)
-{
-  int lvl;
-  int set_refresh_interval[ISIS_LEVELS] = {0, 0};
-  uint16_t refresh_interval;
-
-  refresh_interval = interval - 300;
-
-  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; lvl++)
-    {
-      if (!(lvl & level))
-        continue;
-      if (refresh_interval < area->lsp_refresh[lvl-1])
-        {
-          vty_out (vty, "Level %d Max LSP lifetime %us must be 300s greater than "
-                   "the configured LSP refresh interval %us%s",
-                   lvl, interval, area->lsp_refresh[lvl-1], VTY_NEWLINE);
-          vty_out (vty, "Automatically reducing level %d LSP refresh interval "
-                   "to %us%s", lvl, refresh_interval, VTY_NEWLINE);
-          set_refresh_interval[lvl-1] = 1;
-
-          if (refresh_interval <= area->lsp_gen_interval[lvl-1])
-            {
-              vty_out (vty, "LSP refresh interval %us must be greater than "
-                       "the configured LSP gen interval %us%s",
-                       refresh_interval, area->lsp_gen_interval[lvl-1],
-                       VTY_NEWLINE);
-              return CMD_ERR_AMBIGUOUS;
-            }
-        }
-    }
-
-  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; lvl++)
-    {
-      if (!(lvl & level))
-        continue;
-      area->max_lsp_lifetime[lvl-1] = interval;
-      /* Automatically reducing lsp_refresh_interval to interval - 300 */
-      if (set_refresh_interval[lvl-1])
-        area->lsp_refresh[lvl-1] = refresh_interval;
-    }
-
-  lsp_regenerate_schedule (area, level, 1);
-
-  return CMD_SUCCESS;
-}
-
-DEFUN (max_lsp_lifetime,
-       max_lsp_lifetime_cmd,
-       "max-lsp-lifetime <350-65535>",
-       "Maximum LSP lifetime\n"
-       "LSP lifetime in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_1 | IS_LEVEL_2;
-  return set_lsp_max_lifetime (vty, area, interval, level);
-}
-
-DEFUN (no_max_lsp_lifetime,
-       no_max_lsp_lifetime_cmd,
-       "no max-lsp-lifetime",
-       NO_STR
-       "LSP lifetime in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_LSP_LIFETIME;
-  level = IS_LEVEL_1 | IS_LEVEL_2;
-  return set_lsp_max_lifetime (vty, area, interval, level);
-}
-
-ALIAS (no_max_lsp_lifetime,
-       no_max_lsp_lifetime_arg_cmd,
-       "no max-lsp-lifetime <350-65535>",
-       NO_STR
-       "Maximum LSP lifetime\n"
-       "LSP lifetime in seconds\n")
-
-DEFUN (max_lsp_lifetime_l1,
-       max_lsp_lifetime_l1_cmd,
-       "max-lsp-lifetime level-1 <350-65535>",
-       "Maximum LSP lifetime for Level 1 only\n"
-       "LSP lifetime for Level 1 only in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_1;
-  return set_lsp_max_lifetime (vty, area, interval, level);
-}
-
-DEFUN (no_max_lsp_lifetime_l1,
-       no_max_lsp_lifetime_l1_cmd,
-       "no max-lsp-lifetime level-1",
-       NO_STR
-       "LSP lifetime for Level 1 only in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_LSP_LIFETIME;
-  level = IS_LEVEL_1;
-  return set_lsp_max_lifetime (vty, area, interval, level);
-}
-
-ALIAS (no_max_lsp_lifetime_l1,
-       no_max_lsp_lifetime_l1_arg_cmd,
-       "no max-lsp-lifetime level-1 <350-65535>",
-       NO_STR
-       "Maximum LSP lifetime for Level 1 only\n"
-       "LSP lifetime for Level 1 only in seconds\n")
-
-DEFUN (max_lsp_lifetime_l2,
-       max_lsp_lifetime_l2_cmd,
-       "max-lsp-lifetime level-2 <350-65535>",
-       "Maximum LSP lifetime for Level 2 only\n"
-       "LSP lifetime for Level 2 only in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_2;
-  return set_lsp_max_lifetime (vty, area, interval, level);
-}
-
-DEFUN (no_max_lsp_lifetime_l2,
-       no_max_lsp_lifetime_l2_cmd,
-       "no max-lsp-lifetime level-2",
-       NO_STR
-       "LSP lifetime for Level 2 only in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_LSP_LIFETIME;
-  level = IS_LEVEL_2;
-  return set_lsp_max_lifetime (vty, area, interval, level);
-}
-
-ALIAS (no_max_lsp_lifetime_l2,
-       no_max_lsp_lifetime_l2_arg_cmd,
-       "no max-lsp-lifetime level-2 <350-65535>",
-       NO_STR
-       "Maximum LSP lifetime for Level 2 only\n"
-       "LSP lifetime for Level 2 only in seconds\n")
-
-static int
-set_lsp_refresh_interval (struct vty *vty, struct isis_area *area,
-                          uint16_t interval, int level)
-{
-  int lvl;
-
-  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
-    {
-      if (!(lvl & level))
-        continue;
-      if (interval <= area->lsp_gen_interval[lvl-1])
-        {
-          vty_out (vty, "LSP refresh interval %us must be greater than "
-                   "the configured LSP gen interval %us%s",
-                   interval, area->lsp_gen_interval[lvl-1],
-                   VTY_NEWLINE);
-          return CMD_ERR_AMBIGUOUS;
-        }
-      if (interval > (area->max_lsp_lifetime[lvl-1] - 300))
-        {
-          vty_out (vty, "LSP refresh interval %us must be less than "
-                   "the configured LSP lifetime %us less 300%s",
-                   interval, area->max_lsp_lifetime[lvl-1],
-                   VTY_NEWLINE);
-          return CMD_ERR_AMBIGUOUS;
-        }
-    }
-
-  for (lvl = IS_LEVEL_1; lvl <= IS_LEVEL_2; ++lvl)
-    {
-      if (!(lvl & level))
-        continue;
-      area->lsp_refresh[lvl-1] = interval;
-    }
-  lsp_regenerate_schedule (area, level, 1);
-
-  return CMD_SUCCESS;
-}
-
-DEFUN (lsp_refresh_interval,
-       lsp_refresh_interval_cmd,
-       "lsp-refresh-interval <1-65235>",
-       "LSP refresh interval\n"
-       "LSP refresh interval in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_1 | IS_LEVEL_2;
-  return set_lsp_refresh_interval (vty, area, interval, level);
-}
-
-DEFUN (no_lsp_refresh_interval,
-       no_lsp_refresh_interval_cmd,
-       "no lsp-refresh-interval",
-       NO_STR
-       "LSP refresh interval in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = DEFAULT_MAX_LSP_GEN_INTERVAL;
-  level = IS_LEVEL_1 | IS_LEVEL_2;
-  return set_lsp_refresh_interval (vty, area, interval, level);
-}
-
-ALIAS (no_lsp_refresh_interval,
-       no_lsp_refresh_interval_arg_cmd,
-       "no lsp-refresh-interval <1-65235>",
-       NO_STR
-       "LSP refresh interval\n"
-       "LSP refresh interval in seconds\n")
-
-DEFUN (lsp_refresh_interval_l1,
-       lsp_refresh_interval_l1_cmd,
-       "lsp-refresh-interval level-1 <1-65235>",
-       "LSP refresh interval for Level 1 only\n"
-       "LSP refresh interval for Level 1 only in seconds\n")
+void
+isis_area_max_lsp_lifetime_set(struct isis_area *area, int level,
+			       uint16_t max_lsp_lifetime)
 {
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
+  assert((level == IS_LEVEL_1) || (level == IS_LEVEL_2));
 
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_1;
-  return set_lsp_refresh_interval (vty, area, interval, level);
-}
-
-DEFUN (no_lsp_refresh_interval_l1,
-       no_lsp_refresh_interval_l1_cmd,
-       "no lsp-refresh-interval level-1",
-       NO_STR
-       "LSP refresh interval for Level 1 only in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
+  if (area->max_lsp_lifetime[level-1] == max_lsp_lifetime)
+    return;
 
-  area = vty->index;
-  interval = DEFAULT_MAX_LSP_GEN_INTERVAL;
-  level = IS_LEVEL_1;
-  return set_lsp_refresh_interval (vty, area, interval, level);
+  area->max_lsp_lifetime[level-1] = max_lsp_lifetime;
+  lsp_regenerate_schedule(area, level, 1);
 }
 
-ALIAS (no_lsp_refresh_interval_l1,
-       no_lsp_refresh_interval_l1_arg_cmd,
-       "no lsp-refresh-interval level-1 <1-65235>",
-       NO_STR
-       "LSP refresh interval for Level 1 only\n"
-       "LSP refresh interval for Level 1 only in seconds\n")
-
-DEFUN (lsp_refresh_interval_l2,
-       lsp_refresh_interval_l2_cmd,
-       "lsp-refresh-interval level-2 <1-65235>",
-       "LSP refresh interval for Level 2 only\n"
-       "LSP refresh interval for Level 2 only in seconds\n")
+void
+isis_area_lsp_refresh_set(struct isis_area *area, int level,
+			  uint16_t lsp_refresh)
 {
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
-
-  area = vty->index;
-  interval = atoi (argv[0]);
-  level = IS_LEVEL_2;
-  return set_lsp_refresh_interval (vty, area, interval, level);
-}
+  assert((level == IS_LEVEL_1) || (level == IS_LEVEL_2));
 
-DEFUN (no_lsp_refresh_interval_l2,
-       no_lsp_refresh_interval_l2_cmd,
-       "no lsp-refresh-interval level-2",
-       NO_STR
-       "LSP refresh interval for Level 2 only in seconds\n")
-{
-  struct isis_area *area;
-  uint16_t interval;
-  int level;
+  if (area->lsp_refresh[level-1] == lsp_refresh)
+    return;
 
-  area = vty->index;
-  interval = DEFAULT_MAX_LSP_GEN_INTERVAL;
-  level = IS_LEVEL_2;
-  return set_lsp_refresh_interval (vty, area, interval, level);
+  area->lsp_refresh[level-1] = lsp_refresh;
+  lsp_regenerate_schedule(area, level, 1);
 }
 
-ALIAS (no_lsp_refresh_interval_l2,
-       no_lsp_refresh_interval_l2_arg_cmd,
-       "no lsp-refresh-interval level-2 <1-65235>",
-       NO_STR
-       "LSP refresh interval for Level 2 only\n"
-       "LSP refresh interval for Level 2 only in seconds\n")
-
 DEFUN (log_adj_changes,
        log_adj_changes_cmd,
        "log-adjacency-changes",
@@ -3207,46 +2636,6 @@ isis_init ()
   install_element (ISIS_NODE, &domain_passwd_clear_snpauth_cmd);
   install_element (ISIS_NODE, &no_domain_passwd_cmd);
 
-  install_element (ISIS_NODE, &lsp_gen_interval_cmd);
-  install_element (ISIS_NODE, &no_lsp_gen_interval_cmd);
-  install_element (ISIS_NODE, &no_lsp_gen_interval_arg_cmd);
-  install_element (ISIS_NODE, &lsp_gen_interval_l1_cmd);
-  install_element (ISIS_NODE, &no_lsp_gen_interval_l1_cmd);
-  install_element (ISIS_NODE, &no_lsp_gen_interval_l1_arg_cmd);
-  install_element (ISIS_NODE, &lsp_gen_interval_l2_cmd);
-  install_element (ISIS_NODE, &no_lsp_gen_interval_l2_cmd);
-  install_element (ISIS_NODE, &no_lsp_gen_interval_l2_arg_cmd);
-
-  install_element (ISIS_NODE, &spf_interval_cmd);
-  install_element (ISIS_NODE, &no_spf_interval_cmd);
-  install_element (ISIS_NODE, &no_spf_interval_arg_cmd);
-  install_element (ISIS_NODE, &spf_interval_l1_cmd);
-  install_element (ISIS_NODE, &no_spf_interval_l1_cmd);
-  install_element (ISIS_NODE, &no_spf_interval_l1_arg_cmd);
-  install_element (ISIS_NODE, &spf_interval_l2_cmd);
-  install_element (ISIS_NODE, &no_spf_interval_l2_cmd);
-  install_element (ISIS_NODE, &no_spf_interval_l2_arg_cmd);
-
-  install_element (ISIS_NODE, &max_lsp_lifetime_cmd);
-  install_element (ISIS_NODE, &no_max_lsp_lifetime_cmd);
-  install_element (ISIS_NODE, &no_max_lsp_lifetime_arg_cmd);
-  install_element (ISIS_NODE, &max_lsp_lifetime_l1_cmd);
-  install_element (ISIS_NODE, &no_max_lsp_lifetime_l1_cmd);
-  install_element (ISIS_NODE, &no_max_lsp_lifetime_l1_arg_cmd);
-  install_element (ISIS_NODE, &max_lsp_lifetime_l2_cmd);
-  install_element (ISIS_NODE, &no_max_lsp_lifetime_l2_cmd);
-  install_element (ISIS_NODE, &no_max_lsp_lifetime_l2_arg_cmd);
-
-  install_element (ISIS_NODE, &lsp_refresh_interval_cmd);
-  install_element (ISIS_NODE, &no_lsp_refresh_interval_cmd);
-  install_element (ISIS_NODE, &no_lsp_refresh_interval_arg_cmd);
-  install_element (ISIS_NODE, &lsp_refresh_interval_l1_cmd);
-  install_element (ISIS_NODE, &no_lsp_refresh_interval_l1_cmd);
-  install_element (ISIS_NODE, &no_lsp_refresh_interval_l1_arg_cmd);
-  install_element (ISIS_NODE, &lsp_refresh_interval_l2_cmd);
-  install_element (ISIS_NODE, &no_lsp_refresh_interval_l2_cmd);
-  install_element (ISIS_NODE, &no_lsp_refresh_interval_l2_arg_cmd);
-
   install_element (ISIS_NODE, &log_adj_changes_cmd);
   install_element (ISIS_NODE, &no_log_adj_changes_cmd);
 
diff --git a/isisd/isisd.h b/isisd/isisd.h
index 7a4575652..5f996970f 100644
--- a/isisd/isisd.h
+++ b/isisd/isisd.h
@@ -150,6 +150,10 @@ void isis_area_metricstyle_set(struct isis_area *area, bool old_metric,
 			       bool new_metric);
 void isis_area_lsp_mtu_set(struct isis_area *area, unsigned int lsp_mtu);
 void isis_area_is_type_set(struct isis_area *area, int is_type);
+void isis_area_max_lsp_lifetime_set(struct isis_area *area, int level,
+			            uint16_t max_lsp_lifetime);
+void isis_area_lsp_refresh_set(struct isis_area *area, int level,
+			       uint16_t lsp_refresh);
 
 void isis_vty_init (void);