diff options
| -rw-r--r-- | ospf6d/ospf6_interface.c | 58 | ||||
| -rw-r--r-- | ospf6d/ospf6_interface.h | 3 | ||||
| -rw-r--r-- | ospf6d/ospf6_message.c | 2 |
3 files changed, 62 insertions, 1 deletions
diff --git a/ospf6d/ospf6_interface.c b/ospf6d/ospf6_interface.c index cb347451..236baf17 100644 --- a/ospf6d/ospf6_interface.c +++ b/ospf6d/ospf6_interface.c @@ -118,6 +118,7 @@ ospf6_interface_create (struct interface *ifp) oi->cost = 1; oi->state = OSPF6_INTERFACE_DOWN; oi->flag = 0; + oi->mtu_ignore = 0; /* Try to adjust I/O buffer size with IfMtu */ oi->ifmtu = ifp->mtu6; @@ -784,6 +785,8 @@ ospf6_interface_show (struct vty *vty, struct interface *ifp) { vty_out (vty, " Instance ID %d, Interface MTU %d (autodetect: %d)%s", oi->instance_id, oi->ifmtu, ifp->mtu6, VNL); + vty_out (vty, " MTU mismatch detection: %s%s", oi->mtu_ignore ? + "disabled" : "enabled", VNL); inet_ntop (AF_INET, &oi->area->area_id, strbuf, sizeof (strbuf)); vty_out (vty, " Area ID %s, Cost %hu%s", strbuf, oi->cost, @@ -1368,6 +1371,55 @@ DEFUN (no_ipv6_ospf6_passive, return CMD_SUCCESS; } +DEFUN (ipv6_ospf6_mtu_ignore, + ipv6_ospf6_mtu_ignore_cmd, + "ipv6 ospf6 mtu-ignore", + IP6_STR + OSPF6_STR + "Ignore MTU mismatch on this interface\n" + ) +{ + struct ospf6_interface *oi; + struct interface *ifp; + + ifp = (struct interface *) vty->index; + assert (ifp); + + oi = (struct ospf6_interface *) ifp->info; + if (oi == NULL) + oi = ospf6_interface_create (ifp); + assert (oi); + + oi->mtu_ignore = 1; + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_mtu_ignore, + no_ipv6_ospf6_mtu_ignore_cmd, + "no ipv6 ospf6 mtu-ignore", + NO_STR + IP6_STR + OSPF6_STR + "Ignore MTU mismatch on this interface\n" + ) +{ + struct ospf6_interface *oi; + struct interface *ifp; + + ifp = (struct interface *) vty->index; + assert (ifp); + + oi = (struct ospf6_interface *) ifp->info; + if (oi == NULL) + oi = ospf6_interface_create (ifp); + assert (oi); + + oi->mtu_ignore = 0; + + return CMD_SUCCESS; +} + DEFUN (ipv6_ospf6_advertise_prefix_list, ipv6_ospf6_advertise_prefix_list_cmd, "ipv6 ospf6 advertise prefix-list WORD", @@ -1495,6 +1547,9 @@ config_write_ospf6_interface (struct vty *vty) if (CHECK_FLAG (oi->flag, OSPF6_INTERFACE_PASSIVE)) vty_out (vty, " ipv6 ospf6 passive%s", VNL); + if (oi->mtu_ignore) + vty_out (vty, " ipv6 ospf6 mtu-ignore%s", VNL); + vty_out (vty, "!%s", VNL); } return 0; @@ -1547,6 +1602,9 @@ ospf6_interface_init (void) install_element (INTERFACE_NODE, &ipv6_ospf6_passive_cmd); install_element (INTERFACE_NODE, &no_ipv6_ospf6_passive_cmd); + install_element (INTERFACE_NODE, &ipv6_ospf6_mtu_ignore_cmd); + install_element (INTERFACE_NODE, &no_ipv6_ospf6_mtu_ignore_cmd); + install_element (INTERFACE_NODE, &ipv6_ospf6_advertise_prefix_list_cmd); install_element (INTERFACE_NODE, &no_ipv6_ospf6_advertise_prefix_list_cmd); } diff --git a/ospf6d/ospf6_interface.h b/ospf6d/ospf6_interface.h index 878c29e2..cf758c07 100644 --- a/ospf6d/ospf6_interface.h +++ b/ospf6d/ospf6_interface.h @@ -76,6 +76,9 @@ struct ospf6_interface /* OSPF6 Interface flag */ char flag; + /* MTU mismatch check */ + u_char mtu_ignore; + /* Decision of DR Election */ u_int32_t drouter; u_int32_t bdrouter; diff --git a/ospf6d/ospf6_message.c b/ospf6d/ospf6_message.c index d06eba26..51933b76 100644 --- a/ospf6d/ospf6_message.c +++ b/ospf6d/ospf6_message.c @@ -832,7 +832,7 @@ ospf6_dbdesc_recv (struct in6_addr *src, struct in6_addr *dst, ((caddr_t) oh + sizeof (struct ospf6_header)); /* Interface MTU check */ - if (ntohs (dbdesc->ifmtu) != oi->ifmtu) + if (!oi->mtu_ignore && ntohs (dbdesc->ifmtu) != oi->ifmtu) { if (IS_OSPF6_DEBUG_MESSAGE (oh->type, RECV)) zlog_debug ("I/F MTU mismatch"); |