原文：http://blog.chinaunix.net/uid-24540106-id-1643137.html
1、工作在模式0時
通過查看bond0的工作狀態查詢能詳細的掌握bonding的工作情況，正常狀態下的/proc/net/bonding/bond0文件：
[root@support ~]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)
Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 00:30:48:56:da:72
Slave Interface: eth1
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 00:30:48:56:da:73
從win7 ping，通過拔插網線查看結果，不存在丟包
通過日誌查看網卡工作情況
[root@support ~]# tail -f /var/log/messages
May 29 08:01:41 support kernel: e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
May 29 08:01:41 support kernel: bonding: bond0: link status definitely up for interface eth0.
May 29 08:01:48 support kernel: e1000: eth1 NIC Link is Down
May 29 08:01:48 support kernel: bonding: bond0: link status definitely down for interface eth1, disabling it
May 29 08:02:18 support kernel: e1000: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
May 29 08:02:18 support kernel: bonding: bond0: link status definitely up for interface eth1.
May 29 08:08:49 support kernel: e1000: eth0 NIC Link is Down
May 29 08:08:49 support kernel: bonding: bond0: link status definitely down for interface eth0, disabling it
May 29 08:08:56 support kernel: e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
May 29 08:08:56 support kernel: bonding: bond0: link status definitely up for interface eth0.
2、工作在模式1時
正常狀態下的/proc/net/bonding/bond0文件：
[root@support ~]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:30:48:56:da:72
Slave Interface: eth1
MII Status: up
Speed: 100 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:30:48:56:da:73
從win7 ping，通過拔插網線查看結果，發現在拔網線時，偶爾會存在丟掉一個包的情況。
通過日誌查看網卡工作情況
[root@support ~]# tail -f /var/log/messages
May 29 08:25:24 support kernel: e1000: eth0 NIC Link is Down
May 29 08:25:24 support kernel: bonding: bond0: link status definitely down for interface eth0, disabling it
May 29 08:25:24 support kernel: bonding: bond0: making interface eth1 the new active one.
May 29 08:25:32 support kernel: e1000: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
May 29 08:25:32 support kernel: bonding: bond0: link status definitely up for interface eth0.
May 29 08:27:02 support kernel: e1000: eth1 NIC Link is Down
May 29 08:27:02 support kernel: bonding: bond0: link status definitely down for interface eth1, disabling it
May 29 08:27:02 support kernel: bonding: bond0: making interface eth0 the new active one.
May 29 08:27:48 support kernel: e1000: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
May 29 08:27:48 support kernel: bonding: bond0: link status definitely up for interface eth1.
小結
在 測試過程中，發現丟包情況與設備有關，老式的網新易得服務器上做測試時，兩個網卡無論是接到同一個二層交換機，還是分別接到兩個二層交換機，在拔插網線， 偶爾會出現丟掉一個包的情況。但是在戴爾R710上，當使用模式1時，丟包比較多，甚至在被其他計算機ping時，會出現ping不同的情況。
另外，模式0只是實現了簡單的負載均衡及冗餘備份。如果要實現高效的負載均衡，提高網絡流量，需設置成模式4，而這需要交換機的支持，牽涉到交換機的鏈路聚合(LACP)功能。有待日後再研究。