V7防火墙 LB IRF典型配置举例（BFD MAD检测方式）

由于网络规模迅速扩大，当前中心交换机（Device A）转发能力已经不能满足需求，现需要在保护现有投资的基础上将网络转发能力提高一倍，并要求网络易管理、易维护。
典型配置组网图（BFD MAD检测方式）

(1)     配置Device A
# 配置IRF端口1/2，并将它与物理端口Ten-GigabitEthernet1/1/2绑定，并保存配置。
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/1/2
[Sysname-Ten-GigabitEthernet1/1/2] shutdown
[Sysname-Ten-GigabitEthernet1/1/2] quit
[Sysname] irf-port 1/2
[Sysname-irf-port1/2] port group interface ten-gigabitethernet 1/1/2
[Sysname-irf-port1/2] quit
[Sysname] interface ten-gigabitethernet 1/1/2
[Sysname-Ten-GigabitEthernet1/1/2] undo shutdown
[Sysname-Ten-GigabitEthernet1/1/2] quit
[Sysname] save
# 激活IRF端口下的配置。
[Sysname] irf-port-configuration active
(2)     配置Device B
# 将Device B的成员编号配置为2，并重启设备使新编号生效。
<Sysname> system-view
[Sysname] irf member 1 renumber 2
Warning: Renumbering the member ID may result in configuration change or loss. Continue? [Y/N]:y
[Sysname] quit
<Sysname> reboot
# 参照上图进行物理连线。
# 重新登录到设备，配置IRF端口2/1，并将它与物理端口Ten-GigabitEthernet2/1/1绑定，并保存配置。
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 2/1/1
[Sysname-Ten-GigabitEthernet2/1/1] shutdown
[Sysname-Ten-GigabitEthernet2/1/1] quit
[Sysname] irf-port 2/1
[Sysname-irf-port2/1] port group interface ten-gigabitethernet 2/1/1
[Sysname-irf-port2/1] quit
[Sysname] interface ten-gigabitethernet 2/1/1
[Sysname-Ten-GigabitEthernet2/1/1] undo shutdown
[Sysname-Ten-GigabitEthernet2/1/1] quit
[Sysname] save
# 激活IRF端口下的配置。
[Sysname] irf-port-configuration active
(3)     Device A和Device B间将会进行主设备竞选，竞选失败的一方将重启，重启完成后，IRF形成。
(4)     配置BFD MAD检测
# 创建三层聚合接口3。
<Sysname> system-view
[Sysname] interface route-aggregation 3
[Sysname-Route-Aggregation3] quit
# 分别将Device A（成员编号为1）上的端口1/0/1和Device B（成员编号为2）上的端口2/0/1加入聚合组3中。
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] port link-aggregation group 3
[Sysname-GigabitEthernet1/0/1] quit
[Sysname] interface gigabitethernet 2/0/1
[Sysname-GigabitEthernet2/0/1] port link-aggregation group 3
[Sysname-GigabitEthernet2/0/1] quit
# 配置三层聚合接口3的MAD IP地址。
[Sysname] interface route-aggregation 3
[Sysname-Route-Aggregation3] mad bfd enable
[Sysname-Route-Aggregation3] mad ip address 192.168.2.1 24 member 1
[Sysname-Route-Aggregation3] mad ip address 192.168.2.2 24 member 2
[Sysname-Route-Aggregation3] quit
# 向安全域Trust中添加三层聚合接口3。
<Sysname> system-view
[Sysname] security-zone name trust
[Sysname-security-zone-Trust] import interface route-aggregation 3
[Sysname-security-zone-Trust] quit
# 配置ACL 2000，定义规则：仅允许来自192.168.2.0网段的报文通过。
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 192.168.2.0 0.0.0.255
[Sysname-acl-basic-2000] quit
# 创建源安全域Trust到目的安全域Local的安全域间实例，并在该域间实例上应用包过滤策略
[Sysname] zone-pair security source trust destination loacl
[Sysname-zone-pair-security-Trust-Local] packet-filter 2000
[Sysname-zone-pair-security-Trust-Local] quit
# 创建源安全域Local到目的安全域Trust的安全域间实例，并在该域间实例上应用包过滤策略
[Sysname] zone-pair security source local destination trust
[Sysname-zone-pair-security-Local-Trust] packet-filter 2000
[Sysname-zone-pair-security-Local-Trust] quit