绘制拓扑
前提检查
1、时间必须同步
进行各个节点的时间是否同步。如果不同步，进行配置时间同步服务器进行时间同步。
2、确保iptables及selinux不会成为阻碍
进行相应iptables和selinux检查，避免各个节点之间无法进行正常通信和交互。
3、各节点之间可通过主机名互相通信（对KA并非必须）
-
节点 1
[root@Neo_Neo ~]# hostname Neo_Neo [root@Neo_Neo ~]# cat /etc/hosts | grep "192" 192.168.1.12 Neo_Tang [root@Neo_Neo ~]# ping Neo_Tang PING Neo_Tang (192.168.1.12) 56(84) bytes of data. 64 bytes from Neo_Tang (192.168.1.12): icmp_seq=1 ttl=64 time=0.553 ms 64 bytes from Neo_Tang (192.168.1.12): icmp_seq=2 ttl=64 time=0.581 ms 64 bytes from Neo_Tang (192.168.1.12): icmp_seq=3 ttl=64 time=0.618 ms 64 bytes from Neo_Tang (192.168.1.12): icmp_seq=4 ttl=64 time=0.449 ms ^C --- Neo_Tang ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3003ms rtt min/avg/max/mdev = 0.449/0.550/0.618/0.064 ms -
节点 2
[root@Neo_Tang ~]# hostname Neo_Tang [root@Neo_Tang ~]# cat /etc/hosts | grep "192" 192.168.1.11 Neo_Neo [root@Neo_Tang ~]# ping Neo_Neo PING Neo_Neo (192.168.1.11) 56(84) bytes of data. 64 bytes from Neo_Neo (192.168.1.11): icmp_seq=1 ttl=64 time=0.521 ms 64 bytes from Neo_Neo (192.168.1.11): icmp_seq=2 ttl=64 time=0.472 ms 64 bytes from Neo_Neo (192.168.1.11): icmp_seq=3 ttl=64 time=1.40 ms 64 bytes from Neo_Neo (192.168.1.11): icmp_seq=4 ttl=64 time=0.897 ms ^C --- Neo_Neo ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3004ms rtt min/avg/max/mdev = 0.472/0.824/1.407/0.375 ms
4、确保各节点的用于集群服务的接口支持MULTICAST通信
-
节点 1
[root@Neo_Neo ~]# ifconfig ens33 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.11 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe47:2ddd prefixlen 64 scopeid 0x20<link> ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet) RX packets 902 bytes 76346 (74.5 KiB) RX errors 0 dropped 132 overruns 0 frame 0 TX packets 538 bytes 75874 (74.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 -
节点 2
[root@Neo_Tang ~]# ifconfig ens33 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.12 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe85:7535 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet) RX packets 204 bytes 18942 (18.4 KiB) RX errors 0 dropped 31 overruns 0 frame 0 TX packets 147 bytes 17222 (16.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
4.1 接口 MULTICAST 设置方式
[root@Neo_Neo ~]# ifconfig ens33 | grep "ens33"
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
[root@Neo_Neo ~]# ip link set multicast off dev ens33
[root@Neo_Neo ~]# ifconfig ens33 | grep "ens33"
ens33: flags=67<UP,BROADCAST,RUNNING> mtu 1500
[root@Neo_Neo ~]# ip link set multicast on dev ens33
[root@Neo_Neo ~]# ifconfig ens33 | grep "ens33"
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
虚拟路由器配置
1、keepalived 安装及启动、停止
~]# yum install keepalived -y
~]# rpm -ql keepalived
~]# systemctl start keepalived.service
~]# systemctl stop keepalived.service
2、虚拟路由器配置
2.1 节点 1 配置
[root@Neo_Neo ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
root@localhost
}
notification_email_from keepalived@localhost
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Neo_Tang
vrrp_mcast_group4 224.0.0.58
}
vrrp_instance VI_1 {
state BACKUP
interface ens33
virtual_router_id 33
priority 96
advert_int 1
authentication {
auth_type PASS
auth_pass JIAOTANG
}
virtual_ipaddress {
192.168.1.99/24 dev ens33 label ens33:0
}
}
vrrp_instance VI_2 {
state MASTER
interface ens33
virtual_router_id 34
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass JIAOtANG
}
virtual_ipaddress {
192.168.1.98/24 dev ens33 label ens33:1
}
}
2.2 节点 2 配置
[root@Neo_Tang ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
root@localhost
}
notification_email_from keepalived@localhost
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id neo-neo
vrrp_mcast_group4 224.0.0.58
}
vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 33
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass JIAOTANG
}
virtual_ipaddress {
192.168.1.99/24 dev ens33 label ens33:0
}
}
vrrp_instance VI_2 {
state BACKUP
interface ens33
virtual_router_id 34
priority 95
advert_int 1
authentication {
auth_type PASS
auth_pass JIAOtANG
}
virtual_ipaddress {
192.168.1.98/24 dev ens33 label ens33:1
}
}
3、状态查看
3.1 节点 1 开启 keepalived 程序，节点 2 不开启
-
节点 1
[root@Neo_Neo ~]# systemctl start keepalived.service [root@Neo_Neo ~]# systemctl status keepalived.service ● keepalived.service - LVS and VRRP High Availability Monitor Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-10-04 04:57:24 EDT; 5s ago Process: 6881 ExecStart=/usr/sbin/keepalived $KEEPALIVED_OPTIONS (code=exited, status=0/SUCCESS) Main PID: 6882 (keepalived) CGroup: /system.slice/keepalived.service ├─6882 /usr/sbin/keepalived -D ├─6883 /usr/sbin/keepalived -D └─6884 /usr/sbin/keepalived -D Oct 04 04:57:26 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.98 Oct 04 04:57:28 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Transition to MASTER STATE Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Entering MASTER STATE Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) setting protocol VIPs. Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Sending/queueing gratuitous ARPs on ens33 for 192.168.1.99 Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:29 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 [root@Neo_Neo ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.11 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe47:2ddd prefixlen 64 scopeid 0x20<link> ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet) RX packets 1553 bytes 127962 (124.9 KiB) RX errors 0 dropped 293 overruns 0 frame 0 TX packets 910 bytes 153296 (149.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.99 netmask 255.255.255.0 broadcast 0.0.0.0 ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet) ens33:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.98 netmask 255.255.255.0 broadcast 0.0.0.0 ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet) -
节点 2
[root@Neo_Tang ~]# systemctl status keepalived.service ● keepalived.service - LVS and VRRP High Availability Monitor Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled) Active: inactive (dead) Oct 04 04:51:42 Neo_Tang Keepalived[7089]: Stopping Oct 04 04:51:42 Neo_Tang systemd[1]: Stopping LVS and VRRP High Availability Monitor... Oct 04 04:51:42 Neo_Tang Keepalived_vrrp[7091]: VRRP_Instance(VI_1) sent 0 priority Oct 04 04:51:42 Neo_Tang Keepalived_vrrp[7091]: VRRP_Instance(VI_1) removing protocol VIPs. Oct 04 04:51:42 Neo_Tang Keepalived_vrrp[7091]: VRRP_Instance(VI_2) sent 0 priority Oct 04 04:51:42 Neo_Tang Keepalived_vrrp[7091]: VRRP_Instance(VI_2) removing protocol VIPs. Oct 04 04:51:42 Neo_Tang Keepalived_healthcheckers[7090]: Stopped Oct 04 04:51:43 Neo_Tang Keepalived_vrrp[7091]: Stopped Oct 04 04:51:43 Neo_Tang Keepalived[7089]: Stopped Keepalived v1.3.5 (03/19,2017), git commit v1.3.5-6-g6fa32f2 Oct 04 04:51:43 Neo_Tang systemd[1]: Stopped LVS and VRRP High Availability Monitor. [root@Neo_Tang ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.12 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe85:7535 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet) RX packets 1052 bytes 88500 (86.4 KiB) RX errors 0 dropped 206 overruns 0 frame 0 TX packets 640 bytes 120772 (117.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
3.2 节点 2 开启 keepalived 程序
-
节点 2
[root@Neo_Tang ~]# systemctl start keepalived.service [root@Neo_Tang ~]# systemctl status keepalived.service ● keepalived.service - LVS and VRRP High Availability Monitor Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-10-04 05:00:21 EDT; 2s ago Process: 7151 ExecStart=/usr/sbin/keepalived $KEEPALIVED_OPTIONS (code=exited, status=0/SUCCESS) Main PID: 7152 (keepalived) CGroup: /system.slice/keepalived.service ├─7152 /usr/sbin/keepalived -D ├─7153 /usr/sbin/keepalived -D └─7154 /usr/sbin/keepalived -D Oct 04 05:00:21 Neo_Tang Keepalived_vrrp[7154]: VRRP sockpool: [ifindex(2), proto(112), unicast(0), fd(10,11)] Oct 04 05:00:21 Neo_Tang Keepalived_vrrp[7154]: VRRP_Instance(VI_1) Transition to MASTER STATE Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: VRRP_Instance(VI_1) Entering MASTER STATE Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: VRRP_Instance(VI_1) setting protocol VIPs. Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: VRRP_Instance(VI_1) Sending/queueing gratuitous ARPs on ens33 for 192.168.1.99 Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 05:00:22 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.99 Hint: Some lines were ellipsized, use -l to show in full. [root@Neo_Tang ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.12 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe85:7535 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet) RX packets 1145 bytes 96996 (94.7 KiB) RX errors 0 dropped 221 overruns 0 frame 0 TX packets 717 bytes 132270 (129.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.99 netmask 255.255.255.0 broadcast 0.0.0.0 ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet) -
节点 1
[root@Neo_Neo ~]# systemctl status keepalived.service ● keepalived.service - LVS and VRRP High Availability Monitor Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-10-04 04:57:24 EDT; 3min 23s ago Process: 6881 ExecStart=/usr/sbin/keepalived $KEEPALIVED_OPTIONS (code=exited, status=0/SUCCESS) Main PID: 6882 (keepalived) CGroup: /system.slice/keepalived.service ├─6882 /usr/sbin/keepalived -D ├─6883 /usr/sbin/keepalived -D └─6884 /usr/sbin/keepalived -D Oct 04 04:57:31 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.98 Oct 04 04:57:34 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:34 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Sending/queueing gratuitous ARPs on ens33 for 192.168.1.99 Oct 04 04:57:34 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:34 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:34 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 04:57:34 Neo_Neo Keepalived_vrrp[6884]: Sending gratuitous ARP on ens33 for 192.168.1.99 Oct 04 05:00:21 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Received advert with higher priority 100, ours 96 Oct 04 05:00:21 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Entering BACKUP STATE Oct 04 05:00:21 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) removing protocol VIPs. [root@Neo_Neo ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.11 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe47:2ddd prefixlen 64 scopeid 0x20<link> ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet) RX packets 1714 bytes 139274 (136.0 KiB) RX errors 0 dropped 332 overruns 0 frame 0 TX packets 1317 bytes 184530 (180.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.98 netmask 255.255.255.0 broadcast 0.0.0.0 ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet)
3.3 节点 1 关闭 keepalived 程序
-
节点 1
[root@Neo_Neo ~]# systemctl stop keepalived.service [root@Neo_Neo ~]# systemctl status keepalived.service ● keepalived.service - LVS and VRRP High Availability Monitor Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled) Active: inactive (dead) Oct 04 05:00:21 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) Entering BACKUP STATE Oct 04 05:00:21 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_1) removing protocol VIPs. Oct 04 05:05:57 Neo_Neo systemd[1]: Stopping LVS and VRRP High Availability Monitor... Oct 04 05:05:57 Neo_Neo Keepalived[6882]: Stopping Oct 04 05:05:57 Neo_Neo Keepalived_healthcheckers[6883]: Stopped Oct 04 05:05:57 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_2) sent 0 priority Oct 04 05:05:57 Neo_Neo Keepalived_vrrp[6884]: VRRP_Instance(VI_2) removing protocol VIPs. Oct 04 05:05:58 Neo_Neo Keepalived_vrrp[6884]: Stopped Oct 04 05:05:58 Neo_Neo Keepalived[6882]: Stopped Keepalived v1.3.5 (03/19,2017), git commit v1.3.5-6-g6fa32f2 Oct 04 05:05:58 Neo_Neo systemd[1]: Stopped LVS and VRRP High Availability Monitor. [root@Neo_Neo ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.11 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe47:2ddd prefixlen 64 scopeid 0x20<link> ether 00:0c:29:47:2d:dd txqueuelen 1000 (Ethernet) RX packets 2234 bytes 174932 (170.8 KiB) RX errors 0 dropped 394 overruns 0 frame 0 TX packets 1723 bytes 215516 (210.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 -
节点 2
[root@Neo_Tang ~]# systemctl status keepalived.service
● keepalived.service - LVS and VRRP High Availability Monitor
Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled)
Active: active (running) since Fri 2019-10-04 05:00:21 EDT; 6min ago
Process: 7151 ExecStart=/usr/sbin/keepalived $KEEPALIVED_OPTIONS (code=exited, status=0/SUCCESS)
Main PID: 7152 (keepalived)
CGroup: /system.slice/keepalived.service
├─7152 /usr/sbin/keepalived -D
├─7153 /usr/sbin/keepalived -D
└─7154 /usr/sbin/keepalived -D
Oct 04 05:05:59 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:05:59 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:05:59 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:05:59 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:06:04 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:06:04 Neo_Tang Keepalived_vrrp[7154]: VRRP_Instance(VI_2) Sending/queueing gratuitous ARPs on ens33 for 192.168.1.98
Oct 04 05:06:04 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:06:04 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:06:04 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Oct 04 05:06:04 Neo_Tang Keepalived_vrrp[7154]: Sending gratuitous ARP on ens33 for 192.168.1.98
Hint: Some lines were ellipsized, use -l to show in full.
[root@Neo_Tang ~]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.12 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::20c:29ff:fe85:7535 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet)
RX packets 1630 bytes 127582 (124.5 KiB)
RX errors 0 dropped 293 overruns 0 frame 0
TX packets 1170 bytes 165040 (161.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens33:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.99 netmask 255.255.255.0 broadcast 0.0.0.0
ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet)
ens33:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.98 netmask 255.255.255.0 broadcast 0.0.0.0
ether 00:0c:29:85:75:35 txqueuelen 1000 (Ethernet)
4、组播报文查看
4.1 节点 1 开启 keepalived 程序，节点 2 不开启
-
节点 1
[root@Neo_Neo ~]# tcpdump -i ens33 -nn host 224.0.0.58 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes 05:08:25.165382 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:26.167760 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:27.169136 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:27.790222 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:28.170171 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:28.791860 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:29.171213 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:29.793338 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:30.172254 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:30.794338 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:31.173325 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:31.796199 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:32.174182 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:32.797325 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:33.175310 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 ^C 15 packets captured 15 packets received by filter 0 packets dropped by kernel -
节点 2
[root@Neo_Tang ~]# tcpdump -i ens33 -nn host 224.0.0.58 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes 05:08:25.361480 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:26.364966 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:27.365184 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:27.986328 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:28.366438 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:28.987871 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:29.367347 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:29.989470 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:30.368538 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:30.990453 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:31.369417 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:31.992391 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:32.370463 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:32.993595 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:33.371513 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:33.994526 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:34.372621 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:08:34.995714 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:08:35.373757 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 ^C 19 packets captured 20 packets received by filter 0 packets dropped by kernel
4.2 节点 2 开启 keepalived 程序
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节点 2
[root@Neo_Tang ~]# tcpdump -i ens33 -nn host 224.0.0.58 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes 05:10:21.120094 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:21.483724 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:22.121715 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:22.484762 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:23.123623 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:23.123725 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:23.485640 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:24.124991 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:24.486841 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:25.126400 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:25.487686 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:26.127516 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:26.488797 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:27.128302 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:27.489766 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:28.128693 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:28.490823 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:29.129310 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:29.491843 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:30.129664 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 ^C 20 packets captured 21 packets received by filter 0 packets dropped by kernel -
节点 1
[root@Neo_Neo ~]# tcpdump -i ens33 -nn host 224.0.0.58 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes 05:10:19.920106 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:20.284092 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:20.921727 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:21.285234 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:21.923240 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:22.286253 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:22.925006 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 96, authtype simple, intvl 1s, length 20 05:10:22.925554 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:23.287147 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:23.926935 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:24.288193 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:24.928262 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:25.289145 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:25.929420 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:26.290194 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:26.930122 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:27.291180 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:10:27.930636 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:10:28.292177 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 ^C 19 packets captured 19 packets received by filter 0 packets dropped by kernel
4.3 节点 1 关闭 keepalived 程序
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节点 1
[root@Neo_Neo ~]# tcpdump -i ens33 -nn host 224.0.0.58 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes 05:11:51.035490 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:51.404333 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:11:52.036377 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:52.405181 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:11:53.037237 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:53.406324 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:11:54.038293 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:54.407372 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:11:55.039426 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:55.298373 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 0, authtype simple, intvl 1s, length 20 05:11:55.928522 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:56.040520 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:56.930752 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:57.041508 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:57.932053 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:58.042482 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:58.932303 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:59.043402 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:59.933508 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:00.044475 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:00.934160 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:01.045472 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:01.935263 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:02.046318 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 ^C 24 packets captured 24 packets received by filter 0 packets dropped by kernel -
节点 2
[root@Neo_Tang ~]# tcpdump -i ens33 -nn host 224.0.0.58 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ens33, link-type EN10MB (Ethernet), capture size 262144 bytes 05:11:53.606695 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:11:54.238398 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:54.607842 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 100, authtype simple, intvl 1s, length 20 05:11:55.239428 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:55.498679 IP 192.168.1.11 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 0, authtype simple, intvl 1s, length 20 05:11:56.128485 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:56.240530 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:57.130977 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:57.241553 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:58.131517 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:58.242522 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:11:59.132408 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:11:59.243437 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:00.133521 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:00.244555 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:01.134338 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:01.245586 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:02.135473 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:02.246429 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:03.136161 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:03.247580 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 05:12:04.137600 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 34, prio 95, authtype simple, intvl 1s, length 20 05:12:04.248394 IP 192.168.1.12 > 224.0.0.58: VRRPv2, Advertisement, vrid 33, prio 100, authtype simple, intvl 1s, length 20 ^C 23 packets captured 24 packets received by filter 0 packets dropped by kernel
转载：https://blog.csdn.net/weixin_44983653/article/details/102079161
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