Linux 链路聚合
Posted 丁海龙
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链路聚合与双网卡绑定几乎相同，可以实现多网卡绑定主从荣誉，负载均衡，提高网络访问流量。但链路聚合与双网卡绑定技术（bond）不同点就在于，双网卡绑定只能使用两个网卡绑定，而链路聚合最多可将8个网卡汇聚同时做绑定，此聚合模式称之为team
team 四种模式
- 广播容错："broadcast"
- 平衡轮询："roundrobin"
- 主备："activebackup"
- 负载均衡："loadbalance"
team nmcli 界面窗口实现链路聚合
环境
- 已添加网卡1 ens33
- 已添加网卡2 ens34
- 已添加网卡3 ens35
[root@localhost ~]# ifconfig eno16777728: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.10.20 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::20c:29ff:fe1d:8469 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:1d:84:69 txqueuelen 1000 (Ethernet) RX packets 9 bytes 819 (819.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 31 bytes 4271 (4.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eno33554968: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:1d:84:73 txqueuelen 1000 (Ethernet) RX packets 11 bytes 939 (939.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eno50332192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:1d:84:7d txqueuelen 1000 (Ethernet) RX packets 11 bytes 939 (939.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 514 bytes 43660 (42.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 514 bytes 43660 (42.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@localhost ~]# nm-connection-editor
{"runner":{"name":"activebackup"}}
[root@localhost ~]# teamdctl team0 state setup: runner: activebackup ports: eno16777728 link watches: link summary: up instance[link_watch_0]: name: ethtool link: up eno33554968 link watches: link summary: up instance[link_watch_0]: name: ethtool link: up eno50332192 link watches: link summary: up instance[link_watch_0]: name: ethtool link: up runner: active port: eno16777728 [root@localhost ~]# ifconfig eno16777728: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:1d:84:69 txqueuelen 1000 (Ethernet) RX packets 134009 bytes 9775632 (9.3 MiB) RX errors 0 dropped 133408 overruns 0 frame 0 TX packets 137 bytes 15624 (15.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eno33554968: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:1d:84:69 txqueuelen 1000 (Ethernet) RX packets 334 bytes 26564 (25.9 KiB) RX errors 0 dropped 10 overruns 0 frame 0 TX packets 134607 bytes 9823318 (9.3 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eno50332192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:1d:84:69 txqueuelen 1000 (Ethernet) RX packets 134310 bytes 9801759 (9.3 MiB) RX errors 0 dropped 134247 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 806 bytes 69200 (67.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 806 bytes 69200 (67.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 team0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.10.10 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::20c:29ff:fe1d:8469 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:1d:84:69 txqueuelen 0 (Ethernet) RX packets 36 bytes 2132 (2.0 KiB) RX errors 0 dropped 14 overruns 0 frame 0 TX packets 71 bytes 6369 (6.2 KiB) TX errors 0 dropped 2 overruns 0 carrier 0 collisions 0 [root@localhost ~]# ping 192.168.10.10 PING 192.168.10.10 (192.168.10.10) 56(84) bytes of data. 64 bytes from 192.168.10.10: icmp_seq=1 ttl=64 time=0.119 ms 64 bytes from 192.168.10.10: icmp_seq=2 ttl=64 time=0.099 ms 64 bytes from 192.168.10.10: icmp_seq=3 ttl=64 time=0.100 ms 64 bytes from 192.168.10.10: icmp_seq=4 ttl=64 time=0.092 ms 64 bytes from 192.168.10.10: icmp_seq=5 ttl=64 time=0.092 ms 64 bytes from 192.168.10.10: icmp_seq=6 ttl=64 time=0.100 ms 64 bytes from 192.168.10.10: icmp_seq=7 ttl=64 time=0.095 ms 64 bytes from 192.168.10.10: icmp_seq=8 ttl=64 time=0.11
team nmcli 命令实现链路聚合
环境
- 已添加网卡1 eno16777728
- 已添加网卡2 eno33554968
- 已添加网卡3 eno50332192
1、新建 team master 配置文件，选择模式为主备，并添加地址。
# nmcli connection add con-name 配置文件名称 type 模式类型 ifname 设备名称 config \'{"runner":{"name":"模式"}}\' nmcli connection add con-name team0 type team ifname team0 config \'{"runner":{"name":"activebackup"}}\' # nmcli connection modify 设备名称 ipv4.addresses "IP地址/掩码" connection.autoconnect 开启 ipv4.method 手动 nmcli connection modify team0 ipv4.addresses "192.168.10.10/24" connection.autoconnect yes ipv4.method manual
2、新建 team-slave 配置文件，添加给 team master。
# nmcli connection add con-name 配置文件名称 ifname 设备名称 type 模式类型 master master设备名称 nmcli connection add con-name eth1 ifname eno16777728 type team-slave master team0
nmcli connection add con-name eth2 ifname eno33554968 type team-slave master team0
nmcli connection add con-name eth3 ifname eno50332192 type team-slave master team0
3、启动已创建的网络设备
nmcli connection up team0 nmcli connection up eno16777728
nmcli connection up eno33554968
nmcli connection up eno50332192
4、查看详情
teamdctl team0 state
5、测试
ifconfig eno33554968 down
注：去掉一块网卡，可以看到网络依旧连通着。
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