bgpd: Remove AS Path limit/TTL functionality

* draft-ietf-idr-as-pathlimit doesn't seem to have gone anywhere, and its
  author does not think it will make progress in IDR. Remove all support
  introduced for it, but leave stubs for the commands to avoid breaking
  any configurations.

  Basically reverts cecab5e9725792e60a5e4b473e238a14cd85815d.
(cherry picked from commit c8f3fe3063cb9ff193b13011cfbda3e605395340)

Conflicts:

	bgpd/bgp_attr.c (caused by c8e7b895, resolved)

1 files changed, 183 insertions, 368 deletions

diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c
index 1cfc4511..75a59cb4 100644
--- a/bgpd/bgp_route.c
+++ b/bgpd/bgp_route.c
@@ -910,19 +910,6 @@ bgp_announce_check (struct bgp_info *ri, struct peer *peer, struct prefix *p,
 	}
     }
   
-  /* AS-Pathlimit check */
-  if (ri->attr->pathlimit.ttl && peer_sort (peer) == BGP_PEER_EBGP)
-    /* Our ASN has not yet been pre-pended, that's done in packet_attribute
-     * on output. Hence the test here is for >=.
-     */
-    if (aspath_count_hops (ri->attr->aspath) >= ri->attr->pathlimit.ttl)
-      {
-        if (BGP_DEBUG (filter, FILTER))
-          zlog_info ("%s [Update:SEND] suppressed, AS-Pathlimit TTL %u exceeded",
-                     peer->host, ri->attr->pathlimit.ttl);
-        return 0;
-      }
-  
   /* For modify attribute, copy it to temporary structure. */
   bgp_attr_dup (attr, ri->attr);
   
@@ -1027,39 +1014,6 @@ bgp_announce_check (struct bgp_info *ri, struct peer *peer, struct prefix *p,
     }
 #endif /* HAVE_IPV6 */
 
-  /* AS-Pathlimit: Check ASN for private/confed */
-  if (attr->pathlimit.ttl)
-    {
-      /* locally originated update */
-      if (!attr->pathlimit.as)
-        attr->pathlimit.as = peer->local_as;
-      
-      /* if the AS_PATHLIMIT attribute is attached to a prefix by a
-         member of a confederation, then when the prefix is advertised outside
-         of the confederation boundary, then the AS number of the
-         confederation member inside of the AS_PATHLIMIT attribute should be
-         replaced by the confederation's AS number. */
-      if (peer_sort (from) == BGP_PEER_CONFED 
-          && peer_sort (peer) != BGP_PEER_CONFED)
-        attr->pathlimit.as = peer->local_as;
-
-      /* Private ASN should be updated whenever announcement leaves
-       * private space. This is deliberately done after simple confed
-       * based update..
-       */
-      if (attr->pathlimit.as >= BGP_PRIVATE_AS_MIN
-          && attr->pathlimit.as <= BGP_PRIVATE_AS_MAX)
-        {
-          if (peer->local_as < BGP_PRIVATE_AS_MIN 
-              || peer->local_as > BGP_PRIVATE_AS_MAX)
-            attr->pathlimit.as = peer->local_as;
-          /* Ours is private, try using theirs.. */
-          else if (peer->as < BGP_PRIVATE_AS_MIN
-                   || peer->local_as > BGP_PRIVATE_AS_MAX)
-            attr->pathlimit.as = peer->as;
-        }
-    }
-  
   /* If this is EBGP peer and remove-private-AS is set.  */
   if (peer_sort (peer) == BGP_PEER_EBGP
       && peer_af_flag_check (peer, afi, safi, PEER_FLAG_REMOVE_PRIVATE_AS)
@@ -3239,14 +3193,6 @@ bgp_static_update_rsclient (struct peer *rsclient, struct prefix *p,
   attr.med = bgp_static->igpmetric;
   attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_MULTI_EXIT_DISC);
   
-  if (bgp_static->ttl)
-    {
-      attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_AS_PATHLIMIT);
-      attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE);
-      attr.pathlimit.as = 0;
-      attr.pathlimit.ttl = bgp_static->ttl;
-    }
-  
   if (bgp_static->atomic)
     attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE);
   
@@ -3395,14 +3341,6 @@ bgp_static_update_main (struct bgp *bgp, struct prefix *p,
   attr.med = bgp_static->igpmetric;
   attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_MULTI_EXIT_DISC);
 
-  if (bgp_static->ttl)
-    {
-      attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_AS_PATHLIMIT);
-      attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE);
-      attr.pathlimit.as = 0;
-      attr.pathlimit.ttl = bgp_static->ttl;
-    }
-
   if (bgp_static->atomic)
     attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE);
 
@@ -3626,44 +3564,17 @@ bgp_static_withdraw_vpnv4 (struct bgp *bgp, struct prefix *p, afi_t afi,
   bgp_unlock_node (rn);
 }
 
-static void
-bgp_pathlimit_update_parents (struct bgp *bgp, struct bgp_node *rn,
-                              int ttl_edge)
-{
-  struct bgp_node *parent = rn;
-  struct bgp_static *sp;
-  
-  /* Existing static changed TTL, search parents and adjust their atomic */
-  while ((parent = parent->parent))
-    if ((sp = parent->info))
-      {
-        int sp_level = (sp->atomic ? 1 : 0);
-        ttl_edge ? sp->atomic++ : sp->atomic--;
-        
-        /* did we change state of parent whether atomic is set or not? */
-        if (sp_level != (sp->atomic ? 1 : 0))
-          {
-            bgp_static_update (bgp, &parent->p, sp,
-                               rn->table->afi, rn->table->safi);
-          }
-      }
-}
-
 /* Configure static BGP network.  When user don't run zebra, static
    route should be installed as valid.  */
 static int
 bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str, 
-                afi_t afi, safi_t safi, const char *rmap, int backdoor,
-                u_char ttl)
+                afi_t afi, safi_t safi, const char *rmap, int backdoor)
 {
   int ret;
   struct prefix p;
   struct bgp_static *bgp_static;
   struct bgp_node *rn;
   u_char need_update = 0;
-  u_char ttl_change = 0;
-  u_char ttl_edge = (ttl ? 1 : 0);
-  u_char new = 0;
 
   /* Convert IP prefix string to struct prefix. */
   ret = str2prefix (ip_str, &p);
@@ -3692,21 +3603,10 @@ bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str,
       bgp_static = rn->info;
 
       /* Check previous routes are installed into BGP.  */
-      if (bgp_static->valid)
-        {
-          if (bgp_static->backdoor != backdoor
-              || bgp_static->ttl != ttl)
-            need_update = 1;
-        }
+      if (bgp_static->valid && bgp_static->backdoor != backdoor)
+        need_update = 1;
       
-      /* need to catch TTL set/unset transitions for handling of
-       * ATOMIC_AGGREGATE 
-       */ 
-      if ((bgp_static->ttl ? 1 : 0) != ttl_edge)
-        ttl_change = 1;
-          
       bgp_static->backdoor = backdoor;
-      bgp_static->ttl = ttl;
       
       if (rmap)
 	{
@@ -3733,9 +3633,6 @@ bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str,
       bgp_static->valid = 0;
       bgp_static->igpmetric = 0;
       bgp_static->igpnexthop.s_addr = 0;
-      bgp_static->ttl = ttl;
-      ttl_change = ttl_edge;
-      new = 1;
       
       if (rmap)
 	{
@@ -3747,39 +3644,6 @@ bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str,
       rn->info = bgp_static;
     }
 
-  /* ".. sites that choose to advertise the
-   *  AS_PATHLIMIT path attribute SHOULD advertise the ATOMIC_AGGREGATE on
-   *  all less specific covering prefixes as well as the more specific
-   *  prefixes."
-   *
-   * So:
-   * Prefix that has just had pathlimit set/unset:
-   * - Must bump ATOMIC refcount on all parents.
-   *
-   * To catch less specific prefixes:
-   * - Must search children for ones with TTL, bump atomic refcount
-   *   (we dont care if we're deleting a less specific prefix..)
-   */
-  if (ttl_change)
-    {
-      /* Existing static changed TTL, search parents and adjust their atomic */
-      bgp_pathlimit_update_parents (bgp, rn, ttl_edge);
-    }
-  
-  if (new)
-    {
-      struct bgp_node *child;
-      struct bgp_static *sc;
-      
-      /* New static, search children and bump this statics atomic.. */
-      child = bgp_lock_node (rn); /* route_next_until unlocks it.. */
-      while ((child = bgp_route_next_until (child, rn)))
-        {
-          if ((sc = child->info) && sc->ttl)
-            bgp_static->atomic++;
-        }
-    }
-  
   /* If BGP scan is not enabled, we should install this route here.  */
   if (! bgp_flag_check (bgp, BGP_FLAG_IMPORT_CHECK))
     {
@@ -3833,9 +3697,6 @@ bgp_static_unset (struct vty *vty, struct bgp *bgp, const char *ip_str,
 
   bgp_static = rn->info;
   
-  /* decrement atomic in parents, see bgp_static_set */
-  bgp_pathlimit_update_parents (bgp, rn, 0);
-  
   /* Update BGP RIB. */
   if (! bgp_static->backdoor)
     bgp_static_withdraw (bgp, &p, afi, safi);
@@ -4032,23 +3893,10 @@ DEFUN (bgp_network,
        "Specify a network to announce via BGP\n"
        "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n")
 {
-  u_char ttl = 0;
-  
-  if (argc == 2)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255);
-  
   return bgp_static_set (vty, vty->index, argv[0],
-			 AFI_IP, bgp_node_safi (vty), NULL, 0, ttl);
+			 AFI_IP, bgp_node_safi (vty), NULL, 0);
 }
 
-ALIAS (bgp_network,
-       bgp_network_ttl_cmd,
-       "network A.B.C.D/M pathlimit <0-255>",
-       "Specify a network to announce via BGP\n"
-       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (bgp_network_route_map,
        bgp_network_route_map_cmd,
        "network A.B.C.D/M route-map WORD",
@@ -4058,7 +3906,7 @@ DEFUN (bgp_network_route_map,
        "Name of the route map\n")
 {
   return bgp_static_set (vty, vty->index, argv[0],
-			 AFI_IP, bgp_node_safi (vty), argv[1], 0, 0);
+			 AFI_IP, bgp_node_safi (vty), argv[1], 0);
 }
 
 DEFUN (bgp_network_backdoor,
@@ -4068,24 +3916,10 @@ DEFUN (bgp_network_backdoor,
        "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
        "Specify a BGP backdoor route\n")
 {
-  u_char ttl = 0;
-  
-  if (argc == 2)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255);
-  
   return bgp_static_set (vty, vty->index, argv[0], AFI_IP, SAFI_UNICAST,
-                         NULL, 1, ttl);
+                         NULL, 1);
 }
 
-ALIAS (bgp_network_backdoor,
-       bgp_network_backdoor_ttl_cmd,
-       "network A.B.C.D/M backdoor pathlimit <0-255>",
-       "Specify a network to announce via BGP\n"
-       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
-       "Specify a BGP backdoor route\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (bgp_network_mask,
        bgp_network_mask_cmd,
        "network A.B.C.D mask A.B.C.D",
@@ -4096,10 +3930,6 @@ DEFUN (bgp_network_mask,
 {
   int ret;
   char prefix_str[BUFSIZ];
-  u_char ttl = 0;
-  
-  if (argc == 3)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[2], 1, 255);
   
   ret = netmask_str2prefix_str (argv[0], argv[1], prefix_str);
   if (! ret)
@@ -4109,19 +3939,9 @@ DEFUN (bgp_network_mask,
     }
 
   return bgp_static_set (vty, vty->index, prefix_str,
-			 AFI_IP, bgp_node_safi (vty), NULL, 0, ttl);
+			 AFI_IP, bgp_node_safi (vty), NULL, 0);
 }
 
-ALIAS (bgp_network_mask,
-       bgp_network_mask_ttl_cmd,
-       "network A.B.C.D mask A.B.C.D pathlimit <0-255>",
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "Network mask\n"
-       "Network mask\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (bgp_network_mask_route_map,
        bgp_network_mask_route_map_cmd,
        "network A.B.C.D mask A.B.C.D route-map WORD",
@@ -4143,7 +3963,7 @@ DEFUN (bgp_network_mask_route_map,
     }
 
   return bgp_static_set (vty, vty->index, prefix_str,
-			 AFI_IP, bgp_node_safi (vty), argv[2], 0, 0);
+			 AFI_IP, bgp_node_safi (vty), argv[2], 0);
 }
 
 DEFUN (bgp_network_mask_backdoor,
@@ -4157,11 +3977,7 @@ DEFUN (bgp_network_mask_backdoor,
 {
   int ret;
   char prefix_str[BUFSIZ];
-  u_char ttl = 0;
   
-  if (argc == 3)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[2], 1, 255);
-
   ret = netmask_str2prefix_str (argv[0], argv[1], prefix_str);
   if (! ret)
     {
@@ -4170,20 +3986,9 @@ DEFUN (bgp_network_mask_backdoor,
     }
 
   return bgp_static_set (vty, vty->index, prefix_str, AFI_IP, SAFI_UNICAST,
-                         NULL, 1, ttl);
+                         NULL, 1);
 }
 
-ALIAS (bgp_network_mask_backdoor,
-       bgp_network_mask_backdoor_ttl_cmd,
-       "network A.B.C.D mask A.B.C.D backdoor pathlimit <0-255>",
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "Network mask\n"
-       "Network mask\n"
-       "Specify a BGP backdoor route\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (bgp_network_mask_natural,
        bgp_network_mask_natural_cmd,
        "network A.B.C.D",
@@ -4192,10 +3997,6 @@ DEFUN (bgp_network_mask_natural,
 {
   int ret;
   char prefix_str[BUFSIZ];
-  u_char ttl = 0;
-  
-  if (argc == 2)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255);
 
   ret = netmask_str2prefix_str (argv[0], NULL, prefix_str);
   if (! ret)
@@ -4205,17 +4006,9 @@ DEFUN (bgp_network_mask_natural,
     }
 
   return bgp_static_set (vty, vty->index, prefix_str,
-			 AFI_IP, bgp_node_safi (vty), NULL, 0, ttl);
+			 AFI_IP, bgp_node_safi (vty), NULL, 0);
 }
 
-ALIAS (bgp_network_mask_natural,
-       bgp_network_mask_natural_ttl_cmd,
-       "network A.B.C.D pathlimit <0-255>",
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (bgp_network_mask_natural_route_map,
        bgp_network_mask_natural_route_map_cmd,
        "network A.B.C.D route-map WORD",
@@ -4235,7 +4028,7 @@ DEFUN (bgp_network_mask_natural_route_map,
     }
 
   return bgp_static_set (vty, vty->index, prefix_str,
-			 AFI_IP, bgp_node_safi (vty), argv[1], 0, 0);
+			 AFI_IP, bgp_node_safi (vty), argv[1], 0);
 }
 
 DEFUN (bgp_network_mask_natural_backdoor,
@@ -4247,10 +4040,6 @@ DEFUN (bgp_network_mask_natural_backdoor,
 {
   int ret;
   char prefix_str[BUFSIZ];
-  u_char ttl = 0;
-  
-  if (argc == 2)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255);
 
   ret = netmask_str2prefix_str (argv[0], NULL, prefix_str);
   if (! ret)
@@ -4260,18 +4049,9 @@ DEFUN (bgp_network_mask_natural_backdoor,
     }
 
   return bgp_static_set (vty, vty->index, prefix_str, AFI_IP, SAFI_UNICAST,
-                         NULL, 1, ttl);
+                         NULL, 1);
 }
 
-ALIAS (bgp_network_mask_natural_backdoor,
-       bgp_network_mask_natural_backdoor_ttl_cmd,
-       "network A.B.C.D backdoor pathlimit (1-255>",
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "Specify a BGP backdoor route\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (no_bgp_network,
        no_bgp_network_cmd,
        "no network A.B.C.D/M",
@@ -4284,15 +4064,6 @@ DEFUN (no_bgp_network,
 }
 
 ALIAS (no_bgp_network,
-       no_bgp_network_ttl_cmd,
-       "no network A.B.C.D/M pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
-ALIAS (no_bgp_network,
        no_bgp_network_route_map_cmd,
        "no network A.B.C.D/M route-map WORD",
        NO_STR
@@ -4309,16 +4080,6 @@ ALIAS (no_bgp_network,
        "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
        "Specify a BGP backdoor route\n")
 
-ALIAS (no_bgp_network,
-       no_bgp_network_backdoor_ttl_cmd,
-       "no network A.B.C.D/M backdoor pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
-       "Specify a BGP backdoor route\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (no_bgp_network_mask,
        no_bgp_network_mask_cmd,
        "no network A.B.C.D mask A.B.C.D",
@@ -4342,17 +4103,6 @@ DEFUN (no_bgp_network_mask,
 			   bgp_node_safi (vty));
 }
 
-ALIAS (no_bgp_network,
-       no_bgp_network_mask_ttl_cmd,
-       "no network A.B.C.D mask A.B.C.D pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "Network mask\n"
-       "Network mask\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 ALIAS (no_bgp_network_mask,
        no_bgp_network_mask_route_map_cmd,
        "no network A.B.C.D mask A.B.C.D route-map WORD",
@@ -4374,18 +4124,6 @@ ALIAS (no_bgp_network_mask,
        "Network mask\n"
        "Specify a BGP backdoor route\n")
 
-ALIAS (no_bgp_network_mask,
-       no_bgp_network_mask_backdoor_ttl_cmd,
-       "no network A.B.C.D mask A.B.C.D  backdoor pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "Network mask\n"
-       "Network mask\n"
-       "Specify a BGP backdoor route\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (no_bgp_network_mask_natural,
        no_bgp_network_mask_natural_cmd,
        "no network A.B.C.D",
@@ -4424,25 +4162,6 @@ ALIAS (no_bgp_network_mask_natural,
        "Network number\n"
        "Specify a BGP backdoor route\n")
 
-ALIAS (no_bgp_network_mask_natural,
-       no_bgp_network_mask_natural_ttl_cmd,
-       "no network A.B.C.D pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
-ALIAS (no_bgp_network_mask_natural,
-       no_bgp_network_mask_natural_backdoor_ttl_cmd,
-       "no network A.B.C.D backdoor pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "Network number\n"
-       "Specify a BGP backdoor route\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 #ifdef HAVE_IPV6
 DEFUN (ipv6_bgp_network,
        ipv6_bgp_network_cmd,
@@ -4450,23 +4169,10 @@ DEFUN (ipv6_bgp_network,
        "Specify a network to announce via BGP\n"
        "IPv6 prefix <network>/<length>\n")
 {
-  u_char ttl = 0;
-  
-  if (argc == 2)
-    VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255);
-
   return bgp_static_set (vty, vty->index, argv[0], AFI_IP6, SAFI_UNICAST,
-                         NULL, 0, ttl);
+                         NULL, 0);
 }
 
-ALIAS (ipv6_bgp_network,
-       ipv6_bgp_network_ttl_cmd,
-       "network X:X::X:X/M pathlimit <0-255>",
-       "Specify a network to announce via BGP\n"
-       "IPv6 prefix <network>/<length>\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 DEFUN (ipv6_bgp_network_route_map,
        ipv6_bgp_network_route_map_cmd,
        "network X:X::X:X/M route-map WORD",
@@ -4476,7 +4182,7 @@ DEFUN (ipv6_bgp_network_route_map,
        "Name of the route map\n")
 {
   return bgp_static_set (vty, vty->index, argv[0], AFI_IP6,
-			 bgp_node_safi (vty), argv[1], 0, 0);
+			 bgp_node_safi (vty), argv[1], 0);
 }
 
 DEFUN (no_ipv6_bgp_network,
@@ -4498,15 +4204,6 @@ ALIAS (no_ipv6_bgp_network,
        "Route-map to modify the attributes\n"
        "Name of the route map\n")
 
-ALIAS (no_ipv6_bgp_network,
-       no_ipv6_bgp_network_ttl_cmd,
-       "no network X:X::X:X/M pathlimit <0-255>",
-       NO_STR
-       "Specify a network to announce via BGP\n"
-       "IPv6 prefix <network>/<length>\n"
-       "AS-Path hopcount limit attribute\n"
-       "AS-Pathlimit TTL, in number of AS-Path hops\n")
-
 ALIAS (ipv6_bgp_network,
        old_ipv6_bgp_network_cmd,
        "ipv6 bgp network X:X::X:X/M",
@@ -4524,6 +4221,127 @@ ALIAS (no_ipv6_bgp_network,
        "Specify a network to announce via BGP\n"
        "IPv6 prefix <network>/<length>, e.g., 3ffe::/16\n")
 #endif /* HAVE_IPV6 */
+
+/* stubs for removed AS-Pathlimit commands, kept for config compatibility */
+ALIAS_DEPRECATED (bgp_network,
+       bgp_network_ttl_cmd,
+       "network A.B.C.D/M pathlimit <0-255>",
+       "Specify a network to announce via BGP\n"
+       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (bgp_network_backdoor,
+       bgp_network_backdoor_ttl_cmd,
+       "network A.B.C.D/M backdoor pathlimit <0-255>",
+       "Specify a network to announce via BGP\n"
+       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
+       "Specify a BGP backdoor route\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (bgp_network_mask,
+       bgp_network_mask_ttl_cmd,
+       "network A.B.C.D mask A.B.C.D pathlimit <0-255>",
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "Network mask\n"
+       "Network mask\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (bgp_network_mask_backdoor,
+       bgp_network_mask_backdoor_ttl_cmd,
+       "network A.B.C.D mask A.B.C.D backdoor pathlimit <0-255>",
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "Network mask\n"
+       "Network mask\n"
+       "Specify a BGP backdoor route\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (bgp_network_mask_natural,
+       bgp_network_mask_natural_ttl_cmd,
+       "network A.B.C.D pathlimit <0-255>",
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (bgp_network_mask_natural_backdoor,
+       bgp_network_mask_natural_backdoor_ttl_cmd,
+       "network A.B.C.D backdoor pathlimit (1-255>",
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "Specify a BGP backdoor route\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_bgp_network,
+       no_bgp_network_ttl_cmd,
+       "no network A.B.C.D/M pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_bgp_network,
+       no_bgp_network_backdoor_ttl_cmd,
+       "no network A.B.C.D/M backdoor pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
+       "Specify a BGP backdoor route\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_bgp_network,
+       no_bgp_network_mask_ttl_cmd,
+       "no network A.B.C.D mask A.B.C.D pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "Network mask\n"
+       "Network mask\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_bgp_network_mask,
+       no_bgp_network_mask_backdoor_ttl_cmd,
+       "no network A.B.C.D mask A.B.C.D  backdoor pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "Network mask\n"
+       "Network mask\n"
+       "Specify a BGP backdoor route\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_bgp_network_mask_natural,
+       no_bgp_network_mask_natural_ttl_cmd,
+       "no network A.B.C.D pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_bgp_network_mask_natural,
+       no_bgp_network_mask_natural_backdoor_ttl_cmd,
+       "no network A.B.C.D backdoor pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "Network number\n"
+       "Specify a BGP backdoor route\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (ipv6_bgp_network,
+       ipv6_bgp_network_ttl_cmd,
+       "network X:X::X:X/M pathlimit <0-255>",
+       "Specify a network to announce via BGP\n"
+       "IPv6 prefix <network>/<length>\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
+ALIAS_DEPRECATED (no_ipv6_bgp_network,
+       no_ipv6_bgp_network_ttl_cmd,
+       "no network X:X::X:X/M pathlimit <0-255>",
+       NO_STR
+       "Specify a network to announce via BGP\n"
+       "IPv6 prefix <network>/<length>\n"
+       "AS-Path hopcount limit attribute\n"
+       "AS-Pathlimit TTL, in number of AS-Path hops\n")
 
 /* Aggreagete address:
 
@@ -6130,17 +5948,6 @@ route_vty_out_detail (struct vty *vty, struct bgp *bgp, struct prefix *p,
 	  vty_out (vty, "%s", VTY_NEWLINE);
 	}
       
-      /* 7: AS Pathlimit */
-      if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_AS_PATHLIMIT))
-        {
-          
-          vty_out (vty, "      AS-Pathlimit: %u",
-                   attr->pathlimit.ttl);
-          if (attr->pathlimit.as)
-            vty_out (vty, " (%u)", attr->pathlimit.as);
-          vty_out (vty, "%s", VTY_NEWLINE);
-        }
-      
       if (binfo->extra && binfo->extra->damp_info)
 	bgp_damp_info_vty (vty, binfo);
 
@@ -11548,8 +11355,6 @@ bgp_config_write_network (struct vty *vty, struct bgp *bgp,
 	  {
 	    if (bgp_static->backdoor)
 	      vty_out (vty, " backdoor");
-            if (bgp_static->ttl)
-              vty_out (vty, " pathlimit %u", bgp_static->ttl);
           }
 
 	vty_out (vty, "%s", VTY_NEWLINE);
@@ -11638,12 +11443,6 @@ bgp_route_init (void)
   install_element (BGP_NODE, &bgp_network_backdoor_cmd);
   install_element (BGP_NODE, &bgp_network_mask_backdoor_cmd);
   install_element (BGP_NODE, &bgp_network_mask_natural_backdoor_cmd);
-  install_element (BGP_NODE, &bgp_network_ttl_cmd);
-  install_element (BGP_NODE, &bgp_network_mask_ttl_cmd);
-  install_element (BGP_NODE, &bgp_network_mask_natural_ttl_cmd);
-  install_element (BGP_NODE, &bgp_network_backdoor_ttl_cmd);
-  install_element (BGP_NODE, &bgp_network_mask_backdoor_ttl_cmd);
-  install_element (BGP_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd);
   install_element (BGP_NODE, &no_bgp_network_cmd);
   install_element (BGP_NODE, &no_bgp_network_mask_cmd);
   install_element (BGP_NODE, &no_bgp_network_mask_natural_cmd);
@@ -11653,12 +11452,6 @@ bgp_route_init (void)
   install_element (BGP_NODE, &no_bgp_network_backdoor_cmd);
   install_element (BGP_NODE, &no_bgp_network_mask_backdoor_cmd);
   install_element (BGP_NODE, &no_bgp_network_mask_natural_backdoor_cmd);
-  install_element (BGP_NODE, &no_bgp_network_ttl_cmd);
-  install_element (BGP_NODE, &no_bgp_network_mask_ttl_cmd);
-  install_element (BGP_NODE, &no_bgp_network_mask_natural_ttl_cmd);
-  install_element (BGP_NODE, &no_bgp_network_backdoor_ttl_cmd);
-  install_element (BGP_NODE, &no_bgp_network_mask_backdoor_ttl_cmd);
-  install_element (BGP_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd);
 
   install_element (BGP_NODE, &aggregate_address_cmd);
   install_element (BGP_NODE, &aggregate_address_mask_cmd);
@@ -11688,23 +11481,13 @@ bgp_route_init (void)
   install_element (BGP_IPV4_NODE, &bgp_network_route_map_cmd);
   install_element (BGP_IPV4_NODE, &bgp_network_mask_route_map_cmd);
   install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_route_map_cmd);
-  install_element (BGP_IPV4_NODE, &bgp_network_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &bgp_network_mask_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &bgp_network_backdoor_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &bgp_network_mask_backdoor_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd);  install_element (BGP_IPV4_NODE, &no_bgp_network_cmd);
+  install_element (BGP_IPV4_NODE, &no_bgp_network_cmd);
   install_element (BGP_IPV4_NODE, &no_bgp_network_mask_cmd);
   install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_cmd);
   install_element (BGP_IPV4_NODE, &no_bgp_network_route_map_cmd);
   install_element (BGP_IPV4_NODE, &no_bgp_network_mask_route_map_cmd);
   install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_route_map_cmd);
-  install_element (BGP_IPV4_NODE, &no_bgp_network_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &no_bgp_network_backdoor_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_backdoor_ttl_cmd);
-  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd);  install_element (BGP_IPV4_NODE, &no_bgp_network_cmd);
+  
   install_element (BGP_IPV4_NODE, &aggregate_address_cmd);
   install_element (BGP_IPV4_NODE, &aggregate_address_mask_cmd);
   install_element (BGP_IPV4_NODE, &aggregate_address_summary_only_cmd);
@@ -11733,24 +11516,12 @@ bgp_route_init (void)
   install_element (BGP_IPV4M_NODE, &bgp_network_route_map_cmd);
   install_element (BGP_IPV4M_NODE, &bgp_network_mask_route_map_cmd);
   install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_route_map_cmd);
-  install_element (BGP_IPV4M_NODE, &bgp_network_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &bgp_network_mask_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &bgp_network_backdoor_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &bgp_network_mask_backdoor_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd);  install_element (BGP_IPV4_NODE, &no_bgp_network_cmd);
   install_element (BGP_IPV4M_NODE, &no_bgp_network_cmd);
   install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_cmd);
   install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_cmd);
   install_element (BGP_IPV4M_NODE, &no_bgp_network_route_map_cmd);
   install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_route_map_cmd);
   install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_route_map_cmd);
-  install_element (BGP_IPV4M_NODE, &no_bgp_network_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &no_bgp_network_backdoor_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_backdoor_ttl_cmd);
-  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd);  install_element (BGP_IPV4_NODE, &no_bgp_network_cmd);
   install_element (BGP_IPV4M_NODE, &aggregate_address_cmd);
   install_element (BGP_IPV4M_NODE, &aggregate_address_mask_cmd);
   install_element (BGP_IPV4M_NODE, &aggregate_address_summary_only_cmd);
@@ -11971,10 +11742,8 @@ bgp_route_init (void)
   /* New config IPv6 BGP commands.  */
   install_element (BGP_IPV6_NODE, &ipv6_bgp_network_cmd);
   install_element (BGP_IPV6_NODE, &ipv6_bgp_network_route_map_cmd);
-  install_element (BGP_IPV6_NODE, &ipv6_bgp_network_ttl_cmd);
   install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_cmd);
   install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_route_map_cmd);
-  install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_ttl_cmd);
 
   install_element (BGP_IPV6_NODE, &ipv6_aggregate_address_cmd);
   install_element (BGP_IPV6_NODE, &ipv6_aggregate_address_summary_only_cmd);
@@ -12293,6 +12062,52 @@ bgp_route_init (void)
   install_element (BGP_IPV4_NODE, &bgp_damp_set3_cmd);
   install_element (BGP_IPV4_NODE, &bgp_damp_unset_cmd);
   install_element (BGP_IPV4_NODE, &bgp_damp_unset2_cmd);
+  
+  /* Deprecated AS-Pathlimit commands */
+  install_element (BGP_NODE, &bgp_network_ttl_cmd);
+  install_element (BGP_NODE, &bgp_network_mask_ttl_cmd);
+  install_element (BGP_NODE, &bgp_network_mask_natural_ttl_cmd);
+  install_element (BGP_NODE, &bgp_network_backdoor_ttl_cmd);
+  install_element (BGP_NODE, &bgp_network_mask_backdoor_ttl_cmd);
+  install_element (BGP_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd);
+  
+  install_element (BGP_NODE, &no_bgp_network_ttl_cmd);
+  install_element (BGP_NODE, &no_bgp_network_mask_ttl_cmd);
+  install_element (BGP_NODE, &no_bgp_network_mask_natural_ttl_cmd);
+  install_element (BGP_NODE, &no_bgp_network_backdoor_ttl_cmd);
+  install_element (BGP_NODE, &no_bgp_network_mask_backdoor_ttl_cmd);
+  install_element (BGP_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd);
+  
+  install_element (BGP_IPV4_NODE, &bgp_network_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &bgp_network_mask_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &bgp_network_backdoor_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &bgp_network_mask_backdoor_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd);
+  
+  install_element (BGP_IPV4_NODE, &no_bgp_network_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &no_bgp_network_backdoor_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_backdoor_ttl_cmd);
+  install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd);
+  
+  install_element (BGP_IPV4M_NODE, &bgp_network_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &bgp_network_mask_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &bgp_network_backdoor_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &bgp_network_mask_backdoor_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd);
+  
+  install_element (BGP_IPV4M_NODE, &no_bgp_network_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &no_bgp_network_backdoor_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_backdoor_ttl_cmd);
+  install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd);
+  
+  install_element (BGP_IPV6_NODE, &ipv6_bgp_network_ttl_cmd);
+  install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_ttl_cmd);
 }
 
 void