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-rw-r--r--bgpd/ChangeLog5
-rw-r--r--bgpd/bgp_route.c44
-rw-r--r--bgpd/bgp_vty.c164
-rw-r--r--bgpd/bgpd.c52
-rw-r--r--bgpd/bgpd.h11
5 files changed, 228 insertions, 48 deletions
diff --git a/bgpd/ChangeLog b/bgpd/ChangeLog
index 269c5524..00072cca 100644
--- a/bgpd/ChangeLog
+++ b/bgpd/ChangeLog
@@ -1,5 +1,10 @@
2005-02-01 Akihiro Mizutani <mizutani@net-chef.net>
+ * bgpd.[ch], bgp_vty.c, bgp_route.c: "Restart session after
+ maximum-prefix limit" feature support.
+
+2005-02-01 Akihiro Mizutani <mizutani@net-chef.net>
+
* bgp_nexthop.c: Improve debug.
* bgpd.[ch], bgp_nexthop.c, bgp_snmp.c: Remove useless bgp_get_master()
function.
diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c
index 40a61b61..2e7f7b31 100644
--- a/bgpd/bgp_route.c
+++ b/bgpd/bgp_route.c
@@ -52,6 +52,7 @@ Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
#include "bgpd/bgp_damp.h"
#include "bgpd/bgp_advertise.h"
#include "bgpd/bgp_zebra.h"
+#include "bgpd/bgp_vty.h"
/* Extern from bgp_dump.c */
extern char *bgp_origin_str[];
@@ -1267,7 +1268,24 @@ bgp_process (struct bgp *bgp, struct bgp_node *rn, afi_t afi, safi_t safi)
}
return 0;
}
-
+
+int
+bgp_maximum_prefix_restart_timer (struct thread *thread)
+{
+ struct peer *peer;
+
+ peer = THREAD_ARG (thread);
+ peer->t_pmax_restart = NULL;
+
+ if (BGP_DEBUG (events, EVENTS))
+ zlog_debug ("%s Maximum-prefix restart timer expired, restore peering",
+ peer->host);
+
+ peer_clear (peer);
+
+ return 0;
+}
+
int
bgp_maximum_prefix_overflow (struct peer *peer, afi_t afi,
safi_t safi, int always)
@@ -1282,8 +1300,9 @@ bgp_maximum_prefix_overflow (struct peer *peer, afi_t afi,
return 0;
zlog (peer->log, LOG_INFO,
- "%%MAXPFXEXCEED: No. of prefix received from %s (afi %d): %ld exceed limit %ld",
- peer->host, afi, peer->pcount[afi][safi], peer->pmax[afi][safi]);
+ "%%MAXPFXEXCEED: No. of %s prefix received from %s %ld exceed, "
+ "limit %ld", afi_safi_print (afi, safi), peer->host,
+ peer->pcount[afi][safi], peer->pmax[afi][safi]);
SET_FLAG (peer->af_sflags[afi][safi], PEER_STATUS_PREFIX_LIMIT);
if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING))
@@ -1307,6 +1326,20 @@ bgp_maximum_prefix_overflow (struct peer *peer, afi_t afi,
bgp_notify_send_with_data (peer, BGP_NOTIFY_CEASE,
BGP_NOTIFY_CEASE_MAX_PREFIX, ndata, 7);
}
+
+ /* restart timer start */
+ if (peer->pmax_restart[afi][safi])
+ {
+ peer->v_pmax_restart = peer->pmax_restart[afi][safi] * 60;
+
+ if (BGP_DEBUG (events, EVENTS))
+ zlog_debug ("%s Maximum-prefix restart timer started for %d secs",
+ peer->host, peer->v_pmax_restart);
+
+ BGP_TIMER_ON (peer->t_pmax_restart, bgp_maximum_prefix_restart_timer,
+ peer->v_pmax_restart);
+ }
+
return 1;
}
else
@@ -1319,8 +1352,9 @@ bgp_maximum_prefix_overflow (struct peer *peer, afi_t afi,
return 0;
zlog (peer->log, LOG_INFO,
- "%%MAXPFX: No. of prefix received from %s (afi %d) reaches %ld, max %ld",
- peer->host, afi, peer->pcount[afi][safi], peer->pmax[afi][safi]);
+ "%%MAXPFX: No. of %s prefix received from %s reaches %ld, max %ld",
+ afi_safi_print (afi, safi), peer->host, peer->pcount[afi][safi],
+ peer->pmax[afi][safi]);
SET_FLAG (peer->af_sflags[afi][safi], PEER_STATUS_PREFIX_THRESHOLD);
}
else
diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c
index b94e66b0..02f8e4cf 100644
--- a/bgpd/bgp_vty.c
+++ b/bgpd/bgp_vty.c
@@ -3569,12 +3569,14 @@ DEFUN (no_neighbor_unsuppress_map,
int
peer_maximum_prefix_set_vty (struct vty *vty, const char *ip_str, afi_t afi,
safi_t safi, const char *num_str,
- const char *threshold_str, int warning)
+ const char *threshold_str, int warning,
+ const char *restart_str)
{
int ret;
struct peer *peer;
u_int32_t max;
u_char threshold;
+ u_int16_t restart;
peer = peer_and_group_lookup_vty (vty, ip_str);
if (! peer)
@@ -3586,7 +3588,12 @@ peer_maximum_prefix_set_vty (struct vty *vty, const char *ip_str, afi_t afi,
else
threshold = MAXIMUM_PREFIX_THRESHOLD_DEFAULT;
- ret = peer_maximum_prefix_set (peer, afi, safi, max, threshold, warning);
+ if (restart_str)
+ restart = atoi (restart_str);
+ else
+ restart = 0;
+
+ ret = peer_maximum_prefix_set (peer, afi, safi, max, threshold, warning, restart);
return bgp_vty_return (vty, ret);
}
@@ -3619,7 +3626,8 @@ DEFUN (neighbor_maximum_prefix,
"maximum no. of prefix limit\n")
{
return peer_maximum_prefix_set_vty (vty, argv[0], bgp_node_afi (vty),
- bgp_node_safi (vty), argv[1], NULL, 0);
+ bgp_node_safi (vty), argv[1], NULL, 0,
+ NULL);
}
DEFUN (neighbor_maximum_prefix_threshold,
@@ -3632,8 +3640,9 @@ DEFUN (neighbor_maximum_prefix_threshold,
"Threshold value (%) at which to generate a warning msg\n")
{
return peer_maximum_prefix_set_vty (vty, argv[0], bgp_node_afi (vty),
- bgp_node_safi (vty), argv[1], argv[2], 0);
- }
+ bgp_node_safi (vty), argv[1], argv[2], 0,
+ NULL);
+}
DEFUN (neighbor_maximum_prefix_warning,
neighbor_maximum_prefix_warning_cmd,
@@ -3645,7 +3654,8 @@ DEFUN (neighbor_maximum_prefix_warning,
"Only give warning message when limit is exceeded\n")
{
return peer_maximum_prefix_set_vty (vty, argv[0], bgp_node_afi (vty),
- bgp_node_safi (vty), argv[1], NULL, 1);
+ bgp_node_safi (vty), argv[1], NULL, 1,
+ NULL);
}
DEFUN (neighbor_maximum_prefix_threshold_warning,
@@ -3659,8 +3669,37 @@ DEFUN (neighbor_maximum_prefix_threshold_warning,
"Only give warning message when limit is exceeded\n")
{
return peer_maximum_prefix_set_vty (vty, argv[0], bgp_node_afi (vty),
- bgp_node_safi (vty), argv[1], argv[2], 1);
- }
+ bgp_node_safi (vty), argv[1], argv[2], 1, NULL);
+}
+
+DEFUN (neighbor_maximum_prefix_restart,
+ neighbor_maximum_prefix_restart_cmd,
+ NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> restart <1-65535>",
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefix accept from this peer\n"
+ "maximum no. of prefix limit\n"
+ "Restart bgp connection after limit is exceeded\n"
+ "Restart interval in minutes")
+{
+ return peer_maximum_prefix_set_vty (vty, argv[0], bgp_node_afi (vty),
+ bgp_node_safi (vty), argv[1], NULL, 0, argv[2]);
+}
+
+DEFUN (neighbor_maximum_prefix_threshold_restart,
+ neighbor_maximum_prefix_threshold_restart_cmd,
+ NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> <1-100> restart <1-65535>",
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefix accept from this peer\n"
+ "maximum no. of prefix limit\n"
+ "Threshold value (%) at which to generate a warning msg\n"
+ "Restart bgp connection after limit is exceeded\n"
+ "Restart interval in minutes")
+{
+ return peer_maximum_prefix_set_vty (vty, argv[0], bgp_node_afi (vty),
+ bgp_node_safi (vty), argv[1], argv[2], 0, argv[3]);
+}
DEFUN (no_neighbor_maximum_prefix,
no_neighbor_maximum_prefix_cmd,
@@ -3684,7 +3723,27 @@ ALIAS (no_neighbor_maximum_prefix,
"maximum no. of prefix limit\n")
ALIAS (no_neighbor_maximum_prefix,
- no_neighbor_maximum_prefix_val2_cmd,
+ no_neighbor_maximum_prefix_threshold_cmd,
+ NO_NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> warning-only",
+ NO_STR
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefix accept from this peer\n"
+ "maximum no. of prefix limit\n"
+ "Threshold value (%) at which to generate a warning msg\n")
+
+ALIAS (no_neighbor_maximum_prefix,
+ no_neighbor_maximum_prefix_warning_cmd,
+ NO_NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> warning-only",
+ NO_STR
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefix accept from this peer\n"
+ "maximum no. of prefix limit\n"
+ "Only give warning message when limit is exceeded\n");
+
+ALIAS (no_neighbor_maximum_prefix,
+ no_neighbor_maximum_prefix_threshold_warning_cmd,
NO_NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> <1-100> warning-only",
NO_STR
NEIGHBOR_STR
@@ -3692,17 +3751,30 @@ ALIAS (no_neighbor_maximum_prefix,
"Maximum number of prefix accept from this peer\n"
"maximum no. of prefix limit\n"
"Threshold value (%) at which to generate a warning msg\n"
- "Only give warning message when limit is exceeded\n")
+ "Only give warning message when limit is exceeded\n");
ALIAS (no_neighbor_maximum_prefix,
- no_neighbor_maximum_prefix_val3_cmd,
- NO_NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> warning-only",
+ no_neighbor_maximum_prefix_restart_cmd,
+ NO_NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> restart <1-65535>",
NO_STR
NEIGHBOR_STR
NEIGHBOR_ADDR_STR2
"Maximum number of prefix accept from this peer\n"
"maximum no. of prefix limit\n"
- "Only give warning message when limit is exceeded\n")
+ "Restart bgp connection after limit is exceeded\n"
+ "Restart interval in minutes")
+
+ALIAS (no_neighbor_maximum_prefix,
+ no_neighbor_maximum_prefix_threshold_restart_cmd,
+ NO_NEIGHBOR_CMD2 "maximum-prefix <1-4294967295> <1-100> restart <1-65535>",
+ NO_STR
+ NEIGHBOR_STR
+ NEIGHBOR_ADDR_STR2
+ "Maximum number of prefix accept from this peer\n"
+ "maximum no. of prefix limit\n"
+ "Threshold value (%) at which to generate a warning msg\n"
+ "Restart bgp connection after limit is exceeded\n"
+ "Restart interval in minutes")
/* "neighbor allowas-in" */
DEFUN (neighbor_allowas_in,
@@ -6860,11 +6932,14 @@ bgp_show_peer_afi (struct vty *vty, struct peer *p, afi_t afi, safi_t safi)
/* Maximum prefix */
if (CHECK_FLAG (p->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX))
{
- vty_out (vty, " maximum limit %ld%s%s", p->pmax[afi][safi],
+ vty_out (vty, " Maximum prefixes allowed %ld%s%s", p->pmax[afi][safi],
CHECK_FLAG (p->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING)
- ? " (warning-only)" : "", VTY_NEWLINE);
- vty_out (vty, " Threshold for warning message %d%%%s", p->pmax_threshold [afi][safi],
- VTY_NEWLINE);
+ ? " (warning-only)" : "", VTY_NEWLINE);
+ vty_out (vty, " Threshold for warning message %d%%",
+ p->pmax_threshold[afi][safi]);
+ if (p->pmax_restart[afi][safi])
+ vty_out (vty, ", restart interval %d min", p->pmax_restart[afi][safi]);
+ vty_out (vty, "%s", VTY_NEWLINE);
}
vty_out (vty, "%s", VTY_NEWLINE);
@@ -7092,8 +7167,14 @@ bgp_show_peer (struct vty *vty, struct peer *p)
if (CHECK_FLAG (p->sflags, PEER_STATUS_PREFIX_OVERFLOW))
{
vty_out (vty, " Peer had exceeded the max. no. of prefixes configured.%s", VTY_NEWLINE);
- vty_out (vty, " Reduce the no. of prefix and clear ip bgp %s to restore peering%s",
- p->host, VTY_NEWLINE);
+
+ if (p->t_pmax_restart)
+ vty_out (vty, " Reduce the no. of prefix from %s, will restart in %ld seconds%s",
+ p->host, thread_timer_remain_second (p->t_pmax_restart),
+ VTY_NEWLINE);
+ else
+ vty_out (vty, " Reduce the no. of prefix and clear ip bgp %s to restore peering%s",
+ p->host, VTY_NEWLINE);
}
/* EBGP Multihop */
@@ -8923,42 +9004,67 @@ bgp_vty_init ()
install_element (BGP_NODE, &neighbor_maximum_prefix_threshold_cmd);
install_element (BGP_NODE, &neighbor_maximum_prefix_warning_cmd);
install_element (BGP_NODE, &neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_NODE, &neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_NODE, &neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_NODE, &no_neighbor_maximum_prefix_cmd);
install_element (BGP_NODE, &no_neighbor_maximum_prefix_val_cmd);
- install_element (BGP_NODE, &no_neighbor_maximum_prefix_val2_cmd);
- install_element (BGP_NODE, &no_neighbor_maximum_prefix_val3_cmd);
+ install_element (BGP_NODE, &no_neighbor_maximum_prefix_threshold_cmd);
+ install_element (BGP_NODE, &no_neighbor_maximum_prefix_warning_cmd);
+ install_element (BGP_NODE, &no_neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_NODE, &no_neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_NODE, &no_neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_IPV4_NODE, &neighbor_maximum_prefix_cmd);
install_element (BGP_IPV4_NODE, &neighbor_maximum_prefix_threshold_cmd);
install_element (BGP_IPV4_NODE, &neighbor_maximum_prefix_warning_cmd);
install_element (BGP_IPV4_NODE, &neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_IPV4_NODE, &neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_IPV4_NODE, &neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_cmd);
install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_val_cmd);
- install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_val2_cmd);
- install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_val3_cmd);
+ install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_threshold_cmd);
+ install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_warning_cmd);
+ install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_IPV4_NODE, &no_neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_IPV4M_NODE, &neighbor_maximum_prefix_cmd);
install_element (BGP_IPV4M_NODE, &neighbor_maximum_prefix_threshold_cmd);
install_element (BGP_IPV4M_NODE, &neighbor_maximum_prefix_warning_cmd);
install_element (BGP_IPV4M_NODE, &neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_IPV4M_NODE, &neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_IPV4M_NODE, &neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_cmd);
install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_val_cmd);
- install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_val2_cmd);
- install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_val3_cmd);
+ install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_threshold_cmd);
+ install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_warning_cmd);
+ install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_IPV4M_NODE, &no_neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_IPV6_NODE, &neighbor_maximum_prefix_cmd);
install_element (BGP_IPV6_NODE, &neighbor_maximum_prefix_threshold_cmd);
install_element (BGP_IPV6_NODE, &neighbor_maximum_prefix_warning_cmd);
install_element (BGP_IPV6_NODE, &neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_IPV6_NODE, &neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_IPV6_NODE, &neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_cmd);
install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_val_cmd);
- install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_val2_cmd);
- install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_val3_cmd);
+ install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_threshold_cmd);
+ install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_warning_cmd);
+ install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_IPV6_NODE, &no_neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_VPNV4_NODE, &neighbor_maximum_prefix_cmd);
install_element (BGP_VPNV4_NODE, &neighbor_maximum_prefix_threshold_cmd);
install_element (BGP_VPNV4_NODE, &neighbor_maximum_prefix_warning_cmd);
install_element (BGP_VPNV4_NODE, &neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_VPNV4_NODE, &neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_VPNV4_NODE, &neighbor_maximum_prefix_threshold_restart_cmd);
install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_cmd);
install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_val_cmd);
- install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_val2_cmd);
- install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_val3_cmd);
+ install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_threshold_cmd);
+ install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_warning_cmd);
+ install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_threshold_warning_cmd);
+ install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_restart_cmd);
+ install_element (BGP_VPNV4_NODE, &no_neighbor_maximum_prefix_threshold_restart_cmd);
/* "neighbor allowas-in" */
install_element (BGP_NODE, &neighbor_allowas_in_cmd);
diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c
index cb760d90..097b235c 100644
--- a/bgpd/bgpd.c
+++ b/bgpd/bgpd.c
@@ -1075,6 +1075,7 @@ peer_delete (struct peer *peer)
BGP_TIMER_OFF (peer->t_keepalive);
BGP_TIMER_OFF (peer->t_asorig);
BGP_TIMER_OFF (peer->t_routeadv);
+ BGP_TIMER_OFF (peer->t_pmax_restart);
/* Delete from all peer list. */
if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP))
@@ -1296,6 +1297,7 @@ peer_group2peer_config_copy (struct peer_group *group, struct peer *peer,
/* maximum-prefix */
peer->pmax[afi][safi] = conf->pmax[afi][safi];
peer->pmax_threshold[afi][safi] = conf->pmax_threshold[afi][safi];
+ peer->pmax_restart[afi][safi] = conf->pmax_restart[afi][safi];
/* allowas-in */
peer->allowas_in[afi][safi] = conf->allowas_in[afi][safi];
@@ -2148,6 +2150,15 @@ peer_flag_modify_action (struct peer *peer, u_int32_t flag)
{
if (CHECK_FLAG (peer->flags, flag))
{
+ UNSET_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW);
+ if (peer->t_pmax_restart)
+ {
+ BGP_TIMER_OFF (peer->t_pmax_restart);
+ if (BGP_DEBUG (events, EVENTS))
+ zlog_debug ("%s Maximum-prefix restart timer canceled",
+ peer->host);
+ }
+
if (peer->status == Established)
bgp_notify_send (peer, BGP_NOTIFY_CEASE,
BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN);
@@ -3923,7 +3934,8 @@ peer_unsuppress_map_unset (struct peer *peer, afi_t afi, safi_t safi)
int
peer_maximum_prefix_set (struct peer *peer, afi_t afi, safi_t safi,
- u_int32_t max, u_char threshold, int warning)
+ u_int32_t max, u_char threshold,
+ int warning, u_int16_t restart)
{
struct peer_group *group;
struct listnode *nn;
@@ -3934,6 +3946,7 @@ peer_maximum_prefix_set (struct peer *peer, afi_t afi, safi_t safi,
SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX);
peer->pmax[afi][safi] = max;
peer->pmax_threshold[afi][safi] = threshold;
+ peer->pmax_restart[afi][safi] = restart;
if (warning)
SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING);
else
@@ -3951,6 +3964,7 @@ peer_maximum_prefix_set (struct peer *peer, afi_t afi, safi_t safi,
SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX);
peer->pmax[afi][safi] = max;
peer->pmax_threshold[afi][safi] = threshold;
+ peer->pmax_restart[afi][safi] = restart;
if (warning)
SET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING);
else
@@ -3985,13 +3999,15 @@ peer_maximum_prefix_unset (struct peer *peer, afi_t afi, safi_t safi)
peer->pmax[afi][safi] = peer->group->conf->pmax[afi][safi];
peer->pmax_threshold[afi][safi] = peer->group->conf->pmax_threshold[afi][safi];
+ peer->pmax_restart[afi][safi] = peer->group->conf->pmax_restart[afi][safi];
return 0;
}
UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX);
UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING);
peer->pmax[afi][safi] = 0;
- peer->pmax_threshold[afi][safi] = MAXIMUM_PREFIX_THRESHOLD_DEFAULT;
+ peer->pmax_threshold[afi][safi] = 0;
+ peer->pmax_restart[afi][safi] = 0;
if (! CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP))
return 0;
@@ -4005,7 +4021,8 @@ peer_maximum_prefix_unset (struct peer *peer, afi_t afi, safi_t safi)
UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX);
UNSET_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING);
peer->pmax[afi][safi] = 0;
- peer->pmax_threshold[afi][safi] = MAXIMUM_PREFIX_THRESHOLD_DEFAULT;
+ peer->pmax_threshold[afi][safi] = 0;
+ peer->pmax_restart[afi][safi] = 0;
}
return 0;
}
@@ -4015,7 +4032,20 @@ peer_clear (struct peer *peer)
{
if (! CHECK_FLAG (peer->flags, PEER_FLAG_SHUTDOWN))
{
- UNSET_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW);
+ if (CHECK_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW))
+ {
+ UNSET_FLAG (peer->sflags, PEER_STATUS_PREFIX_OVERFLOW);
+ if (peer->t_pmax_restart)
+ {
+ BGP_TIMER_OFF (peer->t_pmax_restart);
+ if (BGP_DEBUG (events, EVENTS))
+ zlog_debug ("%s Maximum-prefix restart timer canceled",
+ peer->host);
+ }
+ BGP_EVENT_ADD (peer, BGP_Start);
+ return 0;
+ }
+
peer->v_start = BGP_INIT_START_TIMER;
if (peer->status == Established)
bgp_notify_send (peer, BGP_NOTIFY_CEASE,
@@ -4499,12 +4529,14 @@ bgp_config_write_peer (struct vty *vty, struct bgp *bgp,
|| CHECK_FLAG (g_peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING)
!= CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING))
{
- vty_out (vty, " neighbor %s maximum-prefix %ld", addr, peer->pmax[afi][safi]);
- if (peer->pmax_threshold[afi][safi] != MAXIMUM_PREFIX_THRESHOLD_DEFAULT)
- vty_out (vty, " %d", peer->pmax_threshold[afi][safi]);
- if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING))
- vty_out (vty, " warning-only");
- vty_out (vty, "%s", VTY_NEWLINE);
+ vty_out (vty, " neighbor %s maximum-prefix %ld", addr, peer->pmax[afi][safi]);
+ if (peer->pmax_threshold[afi][safi] != MAXIMUM_PREFIX_THRESHOLD_DEFAULT)
+ vty_out (vty, " %d", peer->pmax_threshold[afi][safi]);
+ if (CHECK_FLAG (peer->af_flags[afi][safi], PEER_FLAG_MAX_PREFIX_WARNING))
+ vty_out (vty, " warning-only");
+ if (peer->pmax_restart[afi][safi])
+ vty_out (vty, " restart %d", peer->pmax_restart[afi][safi]);
+ vty_out (vty, "%s", VTY_NEWLINE);
}
/* Route server client. */
diff --git a/bgpd/bgpd.h b/bgpd/bgpd.h
index 42c3ceaa..7a0707c0 100644
--- a/bgpd/bgpd.h
+++ b/bgpd/bgpd.h
@@ -301,7 +301,7 @@ struct peer
u_char afc_adv[AFI_MAX][SAFI_MAX];
u_char afc_recv[AFI_MAX][SAFI_MAX];
- /* Capability Flags.*/
+ /* Capability flags (reset in bgp_stop) */
u_char cap;
#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
@@ -311,7 +311,7 @@ struct peer
#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
- /* Capability Flags.*/
+ /* Capability flags (reset in bgp_stop) */
u_int16_t af_cap[AFI_MAX][SAFI_MAX];
#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
@@ -371,7 +371,7 @@ struct peer
#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
- /* Peer status af flags. */
+ /* Peer status af flags (reset in bgp_stop) */
u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
@@ -399,6 +399,7 @@ struct peer
u_int32_t v_keepalive;
u_int32_t v_asorig;
u_int32_t v_routeadv;
+ u_int32_t v_pmax_restart;
/* Threads. */
struct thread *t_read;
@@ -409,6 +410,7 @@ struct peer
struct thread *t_keepalive;
struct thread *t_asorig;
struct thread *t_routeadv;
+ struct thread *t_pmax_restart;
/* Statistics field */
u_int32_t open_in; /* Open message input count */
@@ -457,6 +459,7 @@ struct peer
/* Max prefix count. */
unsigned long pmax[AFI_MAX][SAFI_MAX];
u_char pmax_threshold[AFI_MAX][SAFI_MAX];
+ u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
/* allowas-in. */
@@ -891,7 +894,7 @@ int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
-int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int);
+int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
int peer_clear (struct peer *);
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-28 02:53:24 +0000