由DHCP引起的Keepalived无法绑定VIP

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一 故障描述
我在台湾合作方给定的两台虚拟机上部署HAProxy+Keepalived负载均衡高可用方案。在配置完Keepalived后，重新启动Keepalived，Keepalived没有绑定VIP。


keepalived.conf的内容
LB1 Master

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! Configuration File for keepalived global_defs {    notification_email {      admin@example.com    }    notification_email_from lb1@example.com    smtp_server 127.0.0.1    smtp_connect_timeout 30    router_id LB1_MASTER } vrrp_script chk_haproxy {         script "killall -0 haproxy"         interval 2     weight 2     } vrrp_instance VI_1 {     state MASTER     interface eth1     virtual_router_id 51     priority 100     advert_int 1     authentication {         auth_type PASS         auth_pass 1111     }     virtual_ipaddress {      10.1.1.200/24      brd 10.1.1.255      dev eth1 label eth1:vip     }     track_script {         chk_haproxy                  } }

重新启动Keepalived查看日志

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Mar  3 18:09:00 cv00300005248-1 Keepalived[20138]: Stopping Keepalived v1.2.15 (02/28,2015) Mar  3 18:09:00 cv00300005248-1 Keepalived[20259]: Starting Keepalived v1.2.15 (02/28,2015) Mar  3 18:09:00 cv00300005248-1 Keepalived[20260]: Starting Healthcheck child process, pid=20261 Mar  3 18:09:00 cv00300005248-1 Keepalived[20260]: Starting VRRP child process, pid=20262 Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Registering Kernel netlink reflector Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Registering Kernel netlink command channel Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Registering gratuitous ARP shared channel Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Registering Kernel netlink reflector Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Registering Kernel netlink command channel Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Configuration is using : 3924 Bytes Mar  3 18:09:00 cv00300005248-1 Keepalived_healthcheckers[20261]: Using LinkWatch kernel netlink reflector... Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Configuration is using : 55712 Bytes Mar  3 18:09:00 cv00300005248-1 Keepalived_vrrp[20262]: Using LinkWatch kernel netlink reflector... Mar  3 18:09:18 cv00300005248-1 kernel: __ratelimit: 1964 callbacks suppressed Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow. Mar  3 18:09:18 cv00300005248-1 kernel: Neighbour table overflow.

查看VIP绑定情况

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$ ifconfig eth1:ha eth1:ha   Link encap:Ethernet  HWaddr 00:16:3E:F2:37:6B             UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           Interrupt:13

没有VIP绑定

二 排查过程

1）检查VIP的配置情况
向合作方确认提供的VIP的详细情况

IPADDR   10.1.1.200
NETMASK   255.255.255.0
GATEWAY   10.1.1.1
Brodcast  10.1.1.255