CentOS7实现网卡bond

#创建bond设备[root@liyong: network-scripts]# nmcli con add con-name bond0 ipv4.method static ipv4.addresses 176.30.30.30/16 type bond mode active-backup Connection 'bond0' (2d586dd8-1153-425b-9fd6-a4a8eb4722aa) successfully added.[root@liyong: network-scripts]# nmcli con showNAME                UUID                                  TYPE            DEVICE  System ens37        4a5516a4-dfa4-24af-b1c4-e843e312e2fd  802-3-ethernet  ens37   Wired connection 1  9a1b7a19-2e8d-330b-a2ed-b6f3923a8e1e  802-3-ethernet  ens33   bond0               2d586dd8-1153-425b-9fd6-a4a8eb4722aa  bond            nm-bond virbr0              37df32ab-0188-4a57-ad31-b5701f027fc4  bridge          virbr0 #添加网关[root@liyong: network-scripts]# nmcli connection modify bond0 ipv4.gateway 176.30.7.1cat ifcfg-bond0 DEVICE=nm-bondTYPE=BondBONDING_MASTER=yesBOOTPROTO=noneDEFROUTE=yesIPV4_FAILURE_FATAL=noIPV6INIT=yesIPV6_AUTOCONF=yesIPV6_DEFROUTE=yesIPV6_FAILURE_FATAL=noIPV6_ADDR_GEN_MODE=stable-privacyNAME=bond0UUID=2d586dd8-1153-425b-9fd6-a4a8eb4722aaONBOOT=yesBONDING_OPTS=mode=active-backupIPADDR=176.30.30.30#添加slavenmcli connection add type bond-slave master bond0 ifname ens33Connection 'bond-slave-ens33' (fbf9a891-e8d5-4ef2-a8d7-fbeb6e2fe4bb) successfully added.[772][root@liyong: network-scripts]# nmcli connection add type bond-slave master bond0 ifname ens37Connection 'bond-slave-ens37' (443d40ad-bb42-4609-b4cd-7904abfbd2c6) successfully added.#先启动slavenmcli connection up bond-slave-ens33nmcli connection up bond-slave-ens37#再启动slavenmcli connection up bond0cat /proc/net/bonding/nm-bond Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)Bonding Mode: fault-tolerance (active-backup)Primary Slave: NoneCurrently Active Slave: ens33MII Status: upMII Polling Interval (ms): 100Up Delay (ms): 0Down Delay (ms): 0Slave Interface: ens33MII Status: upSpeed: 1000 MbpsDuplex: fullLink Failure Count: 0Permanent HW addr: 00:0c:29:21:a9:b3Slave queue ID: 0Slave Interface: ens37MII Status: upSpeed: 1000 MbpsDuplex: fullLink Failure Count: 2Permanent HW addr: 00:0c:29:21:a9:bdSlave queue ID: 0#当断开enss33 时ens37自动启用cat /proc/net/bonding/nm-bond Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)Bonding Mode: fault-tolerance (active-backup)Primary Slave: NoneCurrently Active Slave: ens37MII Status: upMII Polling Interval (ms): 100Up Delay (ms): 0Down Delay (ms): 0Slave Interface: ens33MII Status: downSpeed: UnknownDuplex: UnknownLink Failure Count: 1Permanent HW addr: 00:0c:29:21:a9:b3Slave queue ID: 0Slave Interface: ens37MII Status: upSpeed: 1000 MbpsDuplex: fullLink Failure Count: 3Permanent HW addr: 00:0c:29:21:a9:bdSlave queue ID: 0至此bond功能实现

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