設定 Red hat Enterprise Linux bonding 介面.

 

設定Red hat Enterprise Linux bonding 介面流程如下:

1. 確認主機上至少有兩張網卡.
2. 編輯或新增4個檔案:
   1. 編輯 /etc/sysconfig/network-scripts/ifcfg-eth0
   2. 編輯 /etc/sysconfig/network-scripts/ifcfg-eth1
   3. 新增 /etc/sysconfig/network-scripts/ifcfg-bond0
   4. 新增 /etc/mdoprobe.d/bonding.conf
3. 重新啟動網路服務.
4. 確認 bond0 介面，是否啟用.
5. 查看目前 bond0，使用之實體網路埠.
6. 手動切換 bond0，使用之實體網路埠.
   

我們接著看每個步驟較詳細的設定/檢查方法.

1. 確認主機至少有兩張網卡.
   [root@XXOOXp ~]# dmesg | egrep 'eth.:'
   e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
   e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
   
   
2. 編輯或新增4個檔案:
   1. 編輯 /etc/sysconfig/network-scripts/ifcfg-eth0 的內容.
      [root@XXOOXp network-scripts]# cat ifcfg-eth0
      DEVICE=eth0
      BOOTPROTO=static
      MASTER=bond0
      SLAVE=yes
      ONBOOT=yes
      
      
   2. 編輯 /etc/sysconfig/network-scripts/ifcfg-eth1 的內容.
      [root@XXOOXp network-scripts]# cat ifcfg-eth1
      DEVICE=eth1
      MASTER=bond0
      SLAVE=yes
      ONBOOT=yes
      
      
   3. 新增 /etc/sysconfig/network-scripts/ifcfg-bond0
      [root@XXOOXp network-scripts]# cat ifcfg-bond0
      DEVICE=bond0
      IPADDR=192.168.75.55
      NETMASK=255.255.255.0
      ONBOOT=yes
      BOOTPROTO=static
      BONDING_OPTS="mode=1 miimon=50"
      
      
   4. 新增 /etc/mdoprobe.d/bonding.conf
      [root@XXOOXp modprobe.d]# cat bonding.conf
      alias bond0 bonding
      
      
3. 重新啟動網路服務:
   [root@XXOOXp ~]# service network restart
   
   
4. 確認 bond0 介面，是否啟用.
   [root@XXOOXp ~]# ip addr show bond0
   5: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue
       link/ether 00:0c:29:0f:d7:c6 brd ff:ff:ff:ff:ff:ff
       inet 192.168.75.55/24 brd 192.168.75.255 scope global bond0
       inet6 fe80::20c:29ff:fe0f:d7c6/64 scope link
          valid_lft forever preferred_lft forever
   
   
5. 查看目前 bond0，使用之實體網路埠.
   [root@XXOOXp ~]# cat /proc/net/bonding/bond0
   Ethernet Channel Bonding Driver: v3.4.0 (October 7, 2008)

   Bonding Mode: fault-tolerance (active-backup)
   Primary Slave: None
   Currently Active Slave: eth0
   MII Status: up
   MII Polling Interval (ms): 50
   Up Delay (ms): 0
   Down Delay (ms): 0

   Slave Interface: eth0
   MII Status: up
   Link Failure Count: 0
   Permanent HW addr: 00:0c:29:0f:d7:c6

   Slave Interface: eth1
   MII Status: up
   Link Failure Count: 0
   Permanent HW addr: 00:0c:29:0f:d7:d0
   [root@XXOOXp ~]#

6. 手動切換 bond0，使用之實體網路埠.
   [root@XXOOXp ~]# ifenslave --change-active bond0 eth1
   [root@XXOOXp ~]# cat /proc/net/bonding/bond0 | egrep 'Currently'
   Currently Active Slave: eth1
   

參考資料:

Network Card Bonding On CentOS (bonding 不同 mode 的說明)

8.2.2. Channel Bonding Interfaces

23.7.2. Using Channel Bonding

Bonding on Debian

[root@XXOOXp ~]# modinfo bonding

[root@XXOOXp ~]# man modprobe.conf