centos7 Lacp+802.3ad配置

1.S5700交換機配置

1.1 創建Eth-Trunk

創建編號爲1的eth-trunk，配置他的工作模式爲靜態lacp模式:

<Quidway> system-view
[Quidway] sysname SwitchA
[SwitchA] interface eth-trunk 1
[SwitchA-Eth-Trunk1] bpdu enable
[SwitchA-Eth-Trunk1] mode lacp-static
[SwitchA-Eth-Trunk1] quit

1.2 將成員接口加入Eth-Trunk

[SwitchA] interface gigabitethernet 0/0/1
[SwitchA-GigabitEthernet0/0/1] eth-trunk 1
[SwitchA-GigabitEthernet0/0/1] quit
[SwitchA] interface gigabitethernet 0/0/2
[SwitchA-GigabitEthernet0/0/2] eth-trunk 1
[SwitchA-GigabitEthernet0/0/2] quit

1.3 驗證配置結果

查看各Switch設備的Eth-Trunk信息，查看鏈路是否協商成功；

[SwitchA] display eth-trunk 1
Eth-Trunk1's state information is:
Local:
LAG ID: 1                 WorkingMode: STATIC
Preempt Delay: Disabled        Hash arithmetic: According to SA-XOR-DA
System Priority: 100      System ID: 00e0-fca8-0417
Least Active-linknumber: 1     Max Active-linknumber: 2
Operate status: Up             Number Of Up Port In Trunk: 2
 ------------------------------------------------------------------------------
ActorPortName        Status    PortType  PortPri   PortNo PortKey   PortState Weight
GigabitEthernet0/0/1   Selected  1GE       100      6145    2865    11111100     1
GigabitEthernet0/0/2   Selected  1GE       100      6146    2865    11111100     1
Partner:
------------------------------------------------------------------------------
PartnerPortName        SysPri    SystemID    PortPri PortNo PortKey   PortState
GigabitEthernet0/0/1   32768  00e0-fca6-7f85  32768     6145   2609     11111100
GigabitEthernet0/0/2   32768  00e0-fca6-7f85  32768     6146   2609     11111100

通過以上顯示信息可以看到，SwitchA的系統優先級爲100，高於SwitchB的系統優先級。Eth-Trunk的成員接口中GigabitEthernet 0/0/1、GigabitEthernet 0/0/2成爲活動接口，處於 Selected 狀態，同時實現 M 條鏈路的負載分擔和 N 條鏈路的冗餘備份功能。

1.4 交換機配置文件

# sysname SwitchA
#lacp priority 100
#interface Eth-Trunk1
 mode lacp-static
 max active-linknumber 2
#interface GigabitEthernet0/0/1
 eth-trunk 1
 lacp priority  100
#interface GigabitEthernet0/0/2
 eth-trunk 1
 lacp priority  100
#interface GigabitEthernet0/0/3
 eth-trunk 1
#return

2 服務器端網卡配置

配置了 bond4 模式 ，交換機開啓 lacp, 配置聚合，mode 4: lacp，802.3ad模式是IEEE標準 。

2.1 網卡em1配置

# cat /etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
NAME=em1
TYPE=Ethernet
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes

2.2 網卡em2配置

# cat /etc/sysconfig/network-scripts/ifcfg-em2
DEVICE=em2
NAME=em2
TYPE=Ethernet
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes

2.3 虛bond0配置

# cat /etc/sysconfig/network-scripts/ifcfg-bond4 
DEVICE=bond0
NAME=bond0
TYPE=Bond
BONDING_MASTER=yes
IPADDR=172.16.32.51
GATEWAY=172.16.32.1
NETMASK=255.255.255.0
PEERDNS=yes
ONBOOT=yes
BOOTPROTO=static
BONDING_OPTS="resend_igmp=1 updelay=0 use_carrier=1 miimon=100 downdelay=0 xmit_hash_policy=layer3+4 primary_reselect=0 fail_over_mac=0 arp_validate=0 mode=802.3ad lacp_rate=1 arp_interval=0 ad_select=0"

2.4 bonding生效

重啓系統
[root@localhost ~]# reboot

2.5 檢查bonding狀態

# cat /proc/net/bonding/bond4     
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: fast
Min links: 0
Aggregator selection policy (ad_select): stable
Active Aggregator Info:
        Aggregator ID: 3
        Number of ports: 3
        Actor Key: 17
        Partner Key: 7985
        Partner Mac Address: e4:c2:d1:e5:29:40
Slave Interface: em1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 44:a8:42:21:87:ec
Aggregator ID: 3
Slave queue ID: 0


Slave Interface: em2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 44:a8:42:21:87:ed
Aggregator ID: 3
Slave queue ID: 0