Periodic scan and probe of IP neighbors to maintain neighbor pools - vpp

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author	John Lo <loj@cisco.com>	2018-04-28 01:19:24 -0400
committer	Florin Coras <florin.coras@gmail.com>	2018-05-11 22:35:30 +0000
commit	7f358b30b04aabe9a35680997cc1eeefb080a869 (patch)
tree	25b82c278355adf4a49289b31e3e3ca008bbc743 /src/vnet/fib/fib_entry_cover.c
parent	84c6204969898453aacfa900876e7b7eecd8be0e (diff)

Periodic scan and probe of IP neighbors to maintain neighbor pools

Scan IPv4 and IPv6 neigbor pool entries once a minute to keep them up to date. The neighbor of an entry is probed if its time-stamp is older than 1 minute. If the neighbor respond, its time-stamp will be updated. If there is no response from a neighbor, its entry will be deleted when the time-stamp of the entry become more than 4 minutes old. Static neighbor entries are not probed nor deleted. Implemented CLI and API to enable and disable priodic scan of IPv4, IPv6 or both types of IP neighbors. CLI is "ip scan-neighbor" and API is "ip_scan_neighbor_enable_disable". Other IP neighbor scan parameters can also be changed from their defaults via the CLI/API. Change-Id: Id1a0a934ace15d03db845aa698bcbb9cdabebfcd Signed-off-by: John Lo <loj@cisco.com>

Diffstat (limited to 'src/vnet/fib/fib_entry_cover.c')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * vnet.h: general networking definitions * * Copyright (c) 2011 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef included_vnet_vnet_h #define included_vnet_vnet_h #include <vppinfra/types.h> #include <vppinfra/pcap.h> #include <vnet/buffer.h> #include <vnet/config.h> #include <vnet/interface.h> #include <vnet/api_errno.h> typedef struct vnet_main_t { u32 local_interface_hw_if_index; u32 local_interface_sw_if_index; vnet_interface_main_t interface_main; /* set up by constructors */ vnet_device_class_t *device_class_registrations; vnet_hw_interface_class_t *hw_interface_class_registrations; _vnet_interface_function_list_elt_t * hw_interface_add_del_functions[VNET_ITF_FUNC_N_PRIO]; _vnet_interface_function_list_elt_t * hw_interface_link_up_down_functions[VNET_ITF_FUNC_N_PRIO]; _vnet_interface_function_list_elt_t * sw_interface_add_del_functions[VNET_ITF_FUNC_N_PRIO]; _vnet_interface_function_list_elt_t * sw_interface_admin_up_down_functions[VNET_ITF_FUNC_N_PRIO]; _vnet_interface_function_list_elt_t * sw_interface_mtu_change_functions[VNET_ITF_FUNC_N_PRIO]; uword *interface_tag_by_sw_if_index; /* * Last "api" error, preserved so we can issue reasonable diagnostics * at or near the top of the food chain */ vnet_api_error_t api_errno; vlib_main_t *vlib_main; } vnet_main_t; extern vnet_main_t vnet_main; #include <vnet/interface_funcs.h> #include <vnet/global_funcs.h> #endif /* included_vnet_vnet_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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