rhel6 下的 Ethernet Channel Bonding 技术

引言

Ethernet Channel Bonding 技术，我们常称为网卡绑定，我在wiki 找到一些定义！

通道捆合技术原文是英文的Channel bonding，在电脑网络中此技术是用来调整、排定一部电脑上的两个或两个以上的网络接口，好让网络传输量（throughput，有时也称：通量）增加，或使两个以上的网络接口能结合成备援（redundancy，有时也称：冗余）机制。

注意

rhel6 与 rhel5.4 不同，已经没有/etc/modprobe.conf文件了，需要自己建立比如下面使用的 bond0.conf

载入bonding模块

modprobe bonding

配置bonding

# cat /etc/modprobe.d/bond0.conf
alias bond0 bonding

cd /etc/sysconfig/network-scripts/
# grep -v "^#" ifcfg-bond0
DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
IPADDR=192.168.5.88
NETMASK=255.255.255.0
GATEWAY=192.168.5.1
USERCTL=no
# grep -v "^#" ifcfg-eth1
DEVICE=eth1
ONBOOT=yes
BOOTPROTO=none
MASTER=bond0
SLAVE=yes
USERCTL=no
# grep -v "^#" ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes
USERCTL=no

# echo 100 > /sys/class/net/bond0/bonding/miimon

# echo 6 > /sys/class/net/bond0/bonding/mode
Mode of operation : 0 for balance-rr, 1 for active-backup, 2 for  balance-xor；
3 for broadcast, 4 for 802.3ad, 5 for balance-tlb, 6 for  balance-alb (charp)

重启网络

# /etc/init.d/network restart

检查下

ifconfig
bond0     Link encap:Ethernet  HWaddr 00:18:8B:8D:D6:07
inet addr:192.168.5.88  Bcast:192.168.5.255  Mask:255.255.255.0
inet6 addr: fe80::218:8bff:fe8d:d607/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
RX packets:24448 errors:0 dropped:0 overruns:0 frame:0
TX packets:353 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1697415 (1.6 MiB)  TX bytes:51100 (49.9 KiB)

eth0      Link encap:Ethernet  HWaddr 00:18:8B:8D:D6:07
UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
RX packets:13320 errors:0 dropped:0 overruns:0 frame:0
TX packets:168 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:982133 (959.1 KiB)  TX bytes:24306 (23.7 KiB)
Interrupt:19

eth1      Link encap:Ethernet  HWaddr 00:18:8B:8D:D6:07
UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
RX packets:11128 errors:0 dropped:0 overruns:0 frame:0
TX packets:185 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:715282 (698.5 KiB)  TX bytes:26794 (26.1 KiB)
Interrupt:17

cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.5.0 (November 4, 2008)

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: eth1
MII Status: up
Link Failure Count: 0
Permanent HW addr: e0:05:c5:f2:43:85

Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:18:8b:8d:d6:07

测试 500MB 25.71MB/s 负载均衡 跑到了 200Mbit/s

忘了说明了我的两块网卡 都是 100Mbit/s

rsync -avz --progress test root@192.168.5.82:/root
Address 192.168.5.82 maps to localhost, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
root@192.168.5.82's password:
building file list ...
1 file to consider
test
512000000 100%   25.71MB/s    0:00:13 (xfer#1, to-check=0/1)

sent 97 bytes  received 158459 bytes  7046.93 bytes/sec
total size is 512000000  speedup is 3229.14

更详细请参考这里，或者这里

如有问题欢迎到此讨论：37275208