笛里谁知壮士心，沙头空照征人骨。这篇文章主要讲述使用bmp的方式监控BGP状态相关的知识，希望能为你提供帮助。
【说明】
bmp(bgp monitor protocol)服务器使用基于python开源的yabmp
因为是在模拟环境下做的实验，h3c的模拟器不支持bmp，所以通过使用gobgp来做bmp的客户端
一、实验拓扑
文章图片
二、配置
# sw-1#
[h3c01]disp cur conbgp
#
bgp 65001
router-id 192.168.31.103
peer 192.168.31.104 as-number 65002
peer 192.168.31.110 as-number 64512
#
address-family ipv4 unicast
network 33.33.33.33 255.255.255.255
network 192.168.31.0 255.255.255.0
peer 192.168.31.104 enable
peer 192.168.31.110 enable
#
return# sw-2 #
<
h3c02>
disp cur con bgp
#
bgp 65002
router-id 192.168.31.104
peer 192.168.31.103 as-number 65001
peer 192.168.31.110 as-number 64512
#
address-family ipv4 unicast
network 192.168.31.0 255.255.255.0
peer 192.168.31.103 enable
peer 192.168.31.110 enable
#
return
# gobgp #
[root@C7 gobgp]# cat gobgpd.conf
[global.config]
as = 64512
router-id = "192.168.31.110"[[neighbors]]
[neighbors.config]
neighbor-address = "192.168.31.103"
peer-as = 65001[[neighbors]]
[neighbors.config]
neighbor-address = "192.168.31.104"
peer-as = 65002[[bmp-servers]]
[bmp-servers.config]
address = "192.168.31.247"
port=20000
yabmp 使用默认的配置选项，可以通过python bin/yabmpd -h查看具体有哪些选项
三、运行gobgpd和yabmpd
软件的具体安装过程请查看文章开头的GitHub引用链接；
1.gobgpd -f gobgpd.conf
[root@C7-slave-72 gobgp]# gobgpd -f gobgpd.conf
{"level":"info","msg":"gobgpd started","time":"2021-08-06T21:19:46+08:00"}
{"Topic":"Config","level":"info","msg":"Finished reading the config file","time":"2021-08-06T21:19:46+08:00"}
{"level":"info","msg":"Peer 192.168.31.103 is added","time":"2021-08-06T21:19:46+08:00"}
{"Topic":"Peer","level":"info","msg":"Add a peer configuration for:192.168.31.103","time":"2021-08-06T21:19:46+08:00"}
{"level":"info","msg":"Peer 192.168.31.104 is added","time":"2021-08-06T21:19:46+08:00"}
{"Topic":"Peer","level":"info","msg":"Add a peer configuration for:192.168.31.104","time":"2021-08-06T21:19:46+08:00"}
{"Topic":"bmp","level":"info","msg":"BMP server is connected:192.168.31.247:20000","time":"2021-08-06T21:19:46+08:00"}
{"Key":"192.168.31.103","State":"BGP_FSM_OPENCONFIRM","Topic":"Peer","level":"info","msg":"Peer Up","time":"2021-08-06T21:19:47+08:00"}
{"Key":"192.168.31.104","State":"BGP_FSM_OPENCONFIRM","Topic":"Peer","level":"info","msg":"Peer Up","time":"2021-08-06T21:19:48+08:00"}【使用bmp的方式监控BGP状态】2.启动yabmpd
(yabmp)yabmp-master % python bin/yabmpd
2021-08-06 13:21:05,250.250 2317 INFO yabmp.service [-] Log (Re)opened.
2021-08-06 13:21:05,250.250 2317 INFO yabmp.service [-] Configuration:
2021-08-06 13:21:05,250.250 2317 INFO yabmp.service [-] ********************************************************************************
2021-08-06 13:21:05,250.250 2317 INFO yabmp.service [-] Configuration options gathered from:
2021-08-06 13:21:05,250.250 2317 INFO yabmp.service [-] command line args: []
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] config files: []
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] ================================================================================
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] bind_host= 0.0.0.0
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] bind_port= 20000
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] config_dir= None
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] config_file= []
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] log_backup_count= 5
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] log_config_file= None
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] log_dir= None
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] log_file= /Users/**data/bmp/local/log/yabmp.log
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] log_file_mode= 0644
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] use_stderr= True
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] verbose= False
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] message.write_dir= /Users/**/data/bmp/local/msg
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] message.write_msg_max_size= 500
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] ********************************************************************************
2021-08-06 13:21:05,251.251 2317 INFO root [-] Initial BMP Factory!
2021-08-06 13:21:05,251.251 2317 INFO yabmp.service [-] Starting bmpd server listen to port = 20000 and ip = 0.0.0.0四、查看bgp变动的消息
消息目录：message.write_dir= /Users/**/data/bmp/local/msg
cat msg/192.168.31.110/192.168.31.103/1628218920.608693.msg
[1628218920.609, 1, 1, {\'version\': 4, \'asn\': 65001, \'hold_time\': 180, \'bgp_id\': \'192.168.31.103\', \'capabilities\': {\'afi_safi\': [(1, 1)], \'route_refresh\': True, \'four_bytes_as\': True}}, (0, 0)]
[1628218920.611258, 2, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'192.168.31.0/24\'], \'withdraw\': []}), (1, 1)]
[1628219330.2266371, 3, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'33.33.33.33/32\'], \'withdraw\': []}), (1, 1)]
[1628223979.388705, 4, 1, {\'version\': 4, \'asn\': 65001, \'hold_time\': 180, \'bgp_id\': \'192.168.31.103\', \'capabilities\': {\'afi_safi\': [(1, 1)], \'route_refresh\': True, \'four_bytes_as\': True}}, (0, 0)]
[1628223979.38894, 5, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'33.33.33.33/32\'], \'withdraw\': []}), (1, 1)]
[1628223979.389089, 6, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'192.168.31.0/24\'], \'withdraw\': []}), (1, 1)]
[1628225080.627847, 7, 1, {\'version\': 4, \'asn\': 65001, \'hold_time\': 180, \'bgp_id\': \'192.168.31.103\', \'capabilities\': {\'afi_safi\': [(1, 1)], \'route_refresh\': True, \'four_bytes_as\': True}}, (0, 0)]
#
# 从这里开始 多个datetime格式的时间戳，是我修改了代码，后面会说
#
[\'2021--08--06 12:44:40\', 1628225080.6284769, 8, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'33.33.33.33/32\'], \'withdraw\': []}), (1, 1)]
[\'2021--08--06 12:44:40\', 1628225080.628723, 9, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'192.168.31.0/24\'], \'withdraw\': []}), (1, 1)]
[1628227188.515646, 10, 1, {\'version\': 4, \'asn\': 65001, \'hold_time\': 180, \'bgp_id\': \'192.168.31.103\', \'capabilities\': {\'afi_safi\': [(1, 1)], \'route_refresh\': True, \'four_bytes_as\': True}}, (0, 0)]
[\'2021--08--06 13:19:48\', 1628227188.5204768, 11, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'33.33.33.33/32\'], \'withdraw\': []}), (1, 1)]
[\'2021--08--06 13:19:48\', 1628227188.520828, 12, 130, (2, {\'attr\': {1: 0, 2: [(2, [65001])], 3: \'192.168.31.103\', 4: 0}, \'nlri\': [\'192.168.31.0/24\'], \'withdraw\': []}), (1, 1)]五、二次修改代码
1.修改msg时间戳
yabmp-master/yabmp/handler/default.py -> def on_message_received中
文章图片
2.丰富输出方式(不只是写入文件，还可以发到syslog服务器上)
可以在如下图的路径代码中丰富输出方式
文章图片
logging支持向syslog发送消息：
# 示例，没有具体测试！！import logging
import logging.handlers# handlers要单独importlogger = logging.getLogger()
fh = logging.handlers.SysLogHandler((\'23.106.133.164\', 514), logging.handlers.SysLogHandler.LOG_AUTH)
formatter = logging.Formatter(\'%(asctime)s - %(name)s - %(levelname)s - %(message)s\')
fh.setFormatter(formatter)
logger.addHandler(fh)
logger.warning("msg")
logger.error("msg")好了，这次实验到此，大家在公司都有用哪些方式监控BGP呢？欢迎交流学习。
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