【CAS】主机状态显示正常，连接主机失败，原因：主机不存在或者状态异常，虚拟交换机显示空白

root@cvknode:~# ip a 

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master ovs-system state UP group default qlen 1000 link/ether 14:02:ec:62:3f:2f brd ff:ff:ff:ff:ff:ff inet6 fe80::1602:ecff:fe62:3f2f/64 scope link valid_lft forever preferred_lft forever 

3: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master ovs-system state UP group default qlen 1000 link/ether 58:20:b1:e9:de:b8 brd ff:ff:ff:ff:ff:ff inet6 fe80::5a20:b1ff:fee9:deb8/64 scope link valid_lft forever preferred_lft forever 

4: eth1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc htb master ovs-system state DOWN group default qlen 1000 link/ether 14:02:ec:62:3f:30 brd ff:ff:ff:ff:ff:ff 

5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master ovs-system state UP group default qlen 1000 link/ether 58:20:b1:e9:de:bc brd ff:ff:ff:ff:ff:ff inet6 fe80::5a20:b1ff:fee9:debc/64 scope link valid_lft forever preferred_lft forever 

6: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 3e:e8:b2:f6:5d:86 brd ff:ff:ff:ff:ff:ff 

7: net2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether 14:02:ec:62:3f:30 brd ff:ff:ff:ff:ff:ff inet6 fe80::817:52ff:fe07:c136/64 scope link valid_lft forever preferred_lft forever 

8: net3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether 58:20:b1:e9:de:bc brd ff:ff:ff:ff:ff:ff inet 172.87.64.61/22 brd 172.87.67.255 scope global net3 valid_lft forever preferred_lft forever inet6 fe80::743f:c2ff:fe52:cc69/64 scope link valid_lft forever preferred_lft forever 

9: net1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether 58:20:b1:e9:de:b8 brd ff:ff:ff:ff:ff:ff inet 181.100.3.66/16 brd 181.100.255.255 scope global net1 valid_lft forever preferred_lft forever inet6 fe80::e066:fdff:feaf:da47/64 scope link valid_lft forever preferred_lft forever 

10: vswitch0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether 14:02:ec:62:3f:2f brd ff:ff:ff:ff:ff:ff inet 182.100.1.61/16 brd 182.100.255.255 scope global vswitch0 valid_lft forever preferred_lft forever inet6 fe80::241b:eff:fe57:60cd/64 scope link valid_lft forever preferred_lft forever 

11: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UNKNOWN group default qlen 1000 link/ether fe:da:41:1d:cd:c6 brd ff:ff:ff:ff:ff:ff inet6 fe80::fcda:41ff:fe1d:cdc6/64 scope link valid_lft forever preferred_lft forever root@cvknode:~#