最佳答案
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。
图1-18 IRF典型配置组网图(BFD MAD检测方式)
· Device A处于局域网的汇聚层,为了将汇聚层的转发能力提高一倍,需要另外增加一台设备Device B。
· 鉴于IRF技术具有管理简便、网络扩展能力强、可靠性高等优点,所以本例使用IRF技术构建网络汇聚层(即在Device A和Device B上配置IRF功能),接入层设备通过聚合双链路上行。
· 为了防止万一IRF链路故障导致IRF分裂、网络中存在两个配置冲突的IRF,需要启用MAD检测功能。因为成员设备比较少,我们采用BFD MAD检测方式来监测IRF的状态。
# 设置Device A的成员编号为1,创建IRF端口2,并将它与物理端口Ten-GigabitEthernet3/0/1绑定。
[Sysname] irf member 1
[Sysname] irf-port 2
[Sysname-irf-port2] port group interface ten-gigabitethernet 3/0/1
[Sysname-irf-port2] quit
# 将当前配置保存到下次启动配置文件。
<Sysname> save
# 将设备的运行模式切换到IRF模式。
[Sysname] chassis convert mode irf
The device will switch to IRF mode and reboot.
You are recommended to save the current running configuration and specify the configuration file for the next startup. Continue? [Y/N]:y
Please input the file name(*.cfg)[flash:/startup.cfg]
(To leave the existing filename unchanged, press the enter key):
flash:/startup.cfg exists, overwrite? [Y/N]:y
Validating file. Please wait...
Saved the current configuration to mainboard device successfully.
Do you want to convert the content of the next startup configuration file flash:
/startup.cfg to make it available in IRF mode? [Y/N]:y
Now rebooting, please wait...
设备重启后Device A组成了只有一台成员设备的IRF。
# 配置Device B的成员编号为2,创建IRF端口1,并将它与物理端口Ten-GigabitEthernet3/0/1绑定。
[Sysname] irf member 2
[Sysname] irf-port 1
[Sysname-irf-port1] port group interface ten-gigabitethernet 3/0/1
[Sysname-irf-port1] quit
# 将当前配置保存到下次启动配置文件。
<Sysname> save
# 将设备的运行模式切换到IRF模式。
[Sysname] chassis convert mode irf
The device will switch to IRF mode and reboot.
You are recommended to save the current running configuration and specify the configuration file for the next startup. Continue? [Y/N]:y
Please input the file name(*.cfg)[flash:/startup.cfg]
(To leave the existing filename unchanged, press the enter key):
flash:/startup.cfg exists, overwrite? [Y/N]:y
Validating file. Please wait...
Saved the current configuration to mainboard device successfully.
Do you want to convert the content of the next startup configuration file flash:
/startup.cfg to make it available in IRF mode? [Y/N]:y
Now rebooting, please wait...
设备B重启后与设备A形成IRF。
# 修改IRF链路down延迟上报时间为0。
<Sysname> system-view
[Sysname] irf link-delay 0
# 创建VLAN 3,并将Device A(成员编号为1)上的端口1/4/0/1和Device B(成员编号为2)上的端口2/4/0/1加入VLAN中。
[Sysname-vlan3] port gigabitethernet 1/4/0/1 gigabitethernet 2/4/0/1
[Sysname-vlan3] quit
# 创建VLAN接口3,并配置MAD IP地址。
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] mad bfd enable
[Sysname-Vlan-interface3] mad ip address 192.168.2.1 24 member 1
[Sysname-Vlan-interface3] mad ip address 192.168.2.2 24 member 2
[Sysname-Vlan-interface3] quit
# 因为BFD MAD和生成树功能互斥,所以在GigabitEthernet1/4/0/1和GigabitEthernet2/4/0/1上关闭生成树协议。
[Sysname] interface gigabitethernet 1/4/0/1
[Sysname-gigabitethernet-1/4/0/1] undo stp enable
[Sysname-gigabitethernet-1/4/0/1] quit
[Sysname] interface gigabitethernet 2/4/0/1
[Sysname-gigabitethernet-2/4/0/1] undo stp enable
(0)
您好,请知:
1、1号设备关键配置如下:
[H3C]irf member 1 renumber 1 //将1号设备设定为成员1
Renumbering the member ID may result in configuration change or loss. Continue?[Y/N]:y
[H3C]int range Ten-GigabitEthernet 1/0/50 to Ten-GigabitEthernet 1/0/51
[H3C-if-range]shutdown
[H3C-if-range]quit
[H3C]irf-port 1/1 //将物理端口绑定到IRF端口
[H3C-irf-port1/1]port group interface Ten-GigabitEthernet 1/0/50
[H3C-irf-port1/1]port group interface Ten-GigabitEthernet 1/0/51
[H3C-irf-port1/1]quit
[H3C]int range Ten-GigabitEthernet 1/0/50 to Ten-GigabitEthernet 1/0/51
[H3C-if-range]undo shutdown
[H3C-if-range]quit
[H3C]irf-port-configuration active //激活IRF
[H3C]save
2、2号设备关键配置点如下:
[H3C]irf member 1 renumber 2 //将2号设备设定为成员2
[H3C]int range Ten-GigabitEthernet 1/0/50 to Ten-GigabitEthernet 1/0/51
[H3C-if-range]shutdown
[H3C-if-range]quit
[H3C]irf-port 1/2 //将物理端口绑定到IRF端口
[H3C-irf-port1/2]port group interface Ten-GigabitEthernet 1/0/50
[H3C-irf-port1/2]port group interface Ten-GigabitEthernet 1/0/51
[H3C-irf-port1/2]quit
[H3C]int range Ten-GigabitEthernet 1/0/50 to Ten-GigabitEthernet 1/0/51
[H3C-if-range]undo shutdown
[H3C-if-range]quit
[H3C]irf-port-configuration active //激活IRF
[H3C]save
3、分别将成员1设备、成员2设备重启
4、测试
<H3C>dis irf //查看IRF的信息,看到成员1和成员2的设备信息都在一起
MemberID Role Priority CPU-Mac Description
* 1 Master 1 30bd-490a-0104 ---
2 Standby 1 30bd-525e-0204 ---
--------------------------------------------------
* indicates the device is the master.
indicates the device through which the user logs in.
The bridge MAC of the IRF is: 30bd-490a-0100
Auto upgrade : yes
Mac persistent : 6 min
Domain ID : 0
<H3C>
<H3C>dis irf link //查看成员1、成员2 IRF链路的状态均为UP
Member 1
IRF Port Interface Status
1 Ten-GigabitEthernet1/0/50 UP
Ten-GigabitEthernet1/0/51 UP
2 disable --
Member 2
IRF Port Interface Status
1 disable --
2 Ten-GigabitEthernet2/0/50 UP
Ten-GigabitEthernet2/0/51 UP
<H3C>
<H3C>dis irf configuration //查看IRF的配置信息
MemberID NewID IRF-Port1 IRF-Port2
1 1 Ten-GigabitEthernet1/0/50 disable
Ten-GigabitEthernet1/0/51
2 2 disable Ten-GigabitEthernet2/0/50
Ten-GigabitEthernet2/0/51
<H3C>
<H3C>dis irf topology //查看IRF的拓扑信息
Topology Info
-------------------------------------------------------------------------
IRF-Port1 IRF-Port2
MemberID Link neighbor Link neighbor Belong To
2 DIS --- UP 1 30bd-490a-0104
1 UP 2 DIS --- 30bd-490a-0104
<H3C>
至此S5820交换机的IRF已配置完成!
(1)
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