组网需求：
1、H3C ER6300 作出口路由、防火墙及Qos限速等功能（ER6300 配置LAN口 192.168.30.254默认网关）
2、H3C S5120 两台配置相同VLAN10 VLAN 20 VLAN 30并分配IP地址
VLAN 10 192.168.10.1/24 分配端口 Gi 1/0/1 - Gi 1/0/5
VLAN 20 192.168.20.1/24 分配端口 Gi 1/0/6 - Gi 1/0/10
VLAN 30 192.168.30.1/24 只在第一台交换机分配端口 Gi 1/0/30 用于与H3C ER6300 LAN口相连(第二台交换机不用分配端口)
3、H3C S5120 两台配置 Gi 1/0/47 - Gi 1/0/48端口为二层动态聚合接口1
4、H3C S5120两台配置静态默认路由指向H3C ER6300路由器默认网关 0.0.0.0 0.0.0.0 192.168.30.254
5、配置一台DHCP服务器192.168.20.20(windows server 2008 R2操作系统)连接到第一台H3C S5120交换机VLAN 20并配置DHCP中继代理
6、H3C ER6300路由器静态路由列表配置VLAN 10和VLAN 20回程路由
组网示意图：
组网端口接法
第一台H3C S5120-52P-WiNet
##配置VLAN 10和VLAN 20
<H3CSW01>system-view
[H3CSW01]undo info enable #关闭信息提示
[H3CSW01]vlan 10
[H3CSW01-vlan10]port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/5
[H3CSW01-vlan10]quit
[H3CSW01-Vlan-interface10]ip address 192.168.10.1 255.255.255.0
[H3CSW01]vlan 20
[H3CSW01-vlan20]port GigabitEthernet 1/0/6 to GigabitEthernet 1/0/10
[H3CSW01-vlan20]quit
[H3CSW01]interface Vlan-interface 20
[H3CSW01-Vlan-interface20]ip address 192.168.20.1 255.255.255.0
[H3CSW01-Vlan-interface20]quit
#创建VLAN 30(用于连接H3C ER6300接口LAN口)
[H3CSW01]vlan 30
[H3CSW01-vlan30]port GigabitEthernet 1/0/40
[H3CSW01]interface Vlan-interface 30
[H3CSW01-Vlan-interface30]ip address 192.168.30.1 255.255.255.0
[H3CSW01-Vlan-interface30]quit
##创建二层聚合接口1并配置该接口为动态聚合模式[H3CSW01]interface [H3CSW01]interface Bridge-Aggregation 1
[H3CSW01-Bridge-Aggregation1]link-aggregation mode dynamic
[H3CSW01-Bridge-Aggregation1]quit
##分别将端口GigabitEthernet 1/0/47至GigabitEthernet 1/0/48加入到聚合组1中
[H3CSW01]interface GigabitEthernet 1/0/47
[H3CSW01-GigabitEthernet1/0/47]port link-aggregation group 1
[H3CSW01-GigabitEthernet1/0/47]quit
[H3CSW01]interface GigabitEthernet 1/0/48
[H3CSW01-GigabitEthernet1/0/48]port link-aggregation group 1
[H3CSW01-GigabitEthernet1/0/48]quit
[H3CSW01]interface Bridge-Aggregation 1
[H3CSW01-Bridge-Aggregation1]port link-type trunk
[H3CSW01-Bridge-Aggregation1]port trunk permit vlan all
[H3CSW01-Bridge-Aggregation1]quit
##显示与维护
[H3CSW01]display link-aggregation member-port
[H3CSW01]display link-aggregation summary
[H3CSW01]display link-aggregation verbose
##配置默认路由出口路由
[H3CSW01]ip route-static 0.0.0.0 0.0.0.0 192.168.30.254
[H3CSW01]display ip routing-table #查看路由表
##配置DHCP中继代理
<H3C>system-view
[H3C]dhcp enable
##创建DHCP中继组 2 并配置DHCP服务器 192.168.20.20（windows server 2008 R2操作系统）
[H3C]dhcp relay server-group 2 ip 192.168.20.20
##配置VLAN 10和VLAN 20工作在DHCP中继模式，并指定DHCP中继组2
[H3C]interface Vlan-interface 10
[H3C-Vlan-interface10]dhcp select relay
[H3C-Vlan-interface10]dhcp relay server-select 2
[H3C-Vlan-interface10]quit
[H3C]interface Vlan-interface 20
[H3C-Vlan-interface20]dhcp select relay
[H3C-Vlan-interface20]dhcp relay server-select 2
[H3C-Vlan-interface20]quit
第二台H3C S5120-52P-WiNet
##配置VLAN 10和VLAN 20
<H3CSW02>system-view
[H3CSW02]undo info enable #关闭信息提示
[H3CSW02]vlan 10
[H3CSW02-vlan10]port GigabitEthernet 1/0/1 to GigabitEthernet 1/0/5
[H3CSW02-vlan10]quit
[H3CSW02-Vlan-interface10]ip address 192.168.10.1 255.255.255.0
[H3CSW02]vlan 20
[H3CSW02-vlan20]port GigabitEthernet 1/0/6 to GigabitEthernet 1/0/10
[H3CSW02-vlan20]quit
[H3CSW02]interface Vlan-interface 20
[H3CSW02-Vlan-interface20]ip address 192.168.20.1 255.255.255.0
[H3CSW02-Vlan-interface20]quit
#创建VLAN 30（不用分配端口，VLAN 30用户于与H3C ER6300路由互通使用）
[H3CSW02]vlan 30
[H3CSW02-vlan30]quit
[H3CSW02]interface Vlan-interface 30
[H3CSW02-Vlan-interface30]ip address 192.168.30.1 255.255.255.0
[H3CSW02-Vlan-interface30]quit
##创建二层聚合接口1并配置该接口为动态聚合模式[H3CSW01]interface [H3CSW02]interface Bridge-Aggregation 1
[H3CSW02-Bridge-Aggregation1]link-aggregation mode dynamic
[H3CSW02-Bridge-Aggregation1]quit
##分别将端口GigabitEthernet 1/0/47至GigabitEthernet 1/0/48加入到聚合组1中
[H3CSW02]interface GigabitEthernet 1/0/47
[H3CSW02-GigabitEthernet1/0/47]port link-aggregation group 1
[H3CSW02-GigabitEthernet1/0/47]quit
[H3CSW02]interface GigabitEthernet 1/0/48
[H3CSW02-GigabitEthernet1/0/48]port link-aggregation group 1
[H3CSW02-GigabitEthernet1/0/48]quit
[H3CSW02]interface Bridge-Aggregation 1
[H3CSW02-Bridge-Aggregation1]port link-type trunk
[H3CSW02-Bridge-Aggregation1]port trunk permit vlan all
[H3CSW02-Bridge-Aggregation1]quit
##显示与维护
[H3CSW02]display link-aggregation member-port
[H3CSW02]display link-aggregation summary
[H3CSW02]display link-aggregation verbose
##配置默认路由出口路由
[H3CSW02]ip route-static 0.0.0.0 0.0.0.0 192.168.30.254
[H3CSW02]display ip routing-table #查看路由表
H3C ER6300 添加VLAN 10 和 VLAN 20回程路由操作
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