Centos7 Job for network.service failed

centos7 Job for network.service failed

[root@localhost ~]# /etc/init.d/network start 
Starting network (via systemctl):  Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.
                                                           [失败]
[root@localhost ~]# journalctl -xe
7月 10 11:23:12 localhost.localdomain polkitd[553]: Registered Authentication Agent for unix-process:4868:348274 (system b
7月 10 11:23:12 localhost.localdomain systemd[1]: Starting LSB: Bring up/down networking...
-- Subject: Unit network.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit network.service has begun starting up.
7月 10 11:23:13 localhost.localdomain network[4873]: Bringing up loopback interface:  Could not load file '/etc/sysconfig/
7月 10 11:23:13 localhost.localdomain network[4873]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
7月 10 11:23:13 localhost.localdomain network[4873]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
7月 10 11:23:13 localhost.localdomain network[4873]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
7月 10 11:23:13 localhost.localdomain network[4873]: [  OK  ]
7月 10 11:23:13 localhost.localdomain network[4873]: Bringing up interface enp1s0:  [  OK  ]
7月 10 11:23:13 localhost.localdomain network[4873]: Bringing up interface enp3s0:  Error: Connection activation failed: N

原因  思科交换机那边小伙伴搞错了