链路聚合的配置和DHCP全局地址池的配置
原理概述：
链路聚合（英语：Link Aggregation）是一个计算机网络术语，指将多个物理端口汇聚在一起，形成一个逻辑端口，以实现出/入流量吞吐量在各成员端口的负荷分担，交换机根据用户配置的端口负荷分担策略决定网络封包从哪个成员端口发送到对端的交换机。当交换机检测到其中一个成员端口的链路发生故障时，就停止在此端口上发送封包，并根据负荷分担策略在剩下的链路中重新计算报文的发送端口，故障端口恢复后再次担任收发端口。链路聚合在增加链路带宽、实现链路传输弹性和工程冗余等方面是一项很重要的技术
实验拓扑：
配置命令：
SW1：
#
interface Eth-Trunk1
port link-type access
port default vlan 10
#
interface Ethernet0/0/1
eth-trunk 1
#
interface Ethernet0/0/2
eth-trunk 1
#
interface Ethernet0/0/3
port link-type access
port default vlan 10
SW2:
#
interface Eth-Trunk1
port link-type access
port default vlan 20
#
interface Ethernet0/0/1
eth-trunk 1
#
interface Ethernet0/0/2
eth-trunk 1
#
interface Ethernet0/0/3
port link-type access
port default vlan 20
SW3:
#
interface Vlanif10
ip address 192.168.10.254 255.255.255.0
dhcp select relay
dhcp relay server-ip 192.168.10.2
#
interface Vlanif20
ip address 192.168.20.254 255.255.255.0
#
interface MEth0/0/1
#
interface Eth-Trunk1
port link-type access
port default vlan 10
#
interface Eth-Trunk2
port link-type access
port default vlan 20
#
interface Eth-Trunk3
port link-type access
port default vlan 10
#
interface GigabitEthernet0/0/1
eth-trunk 1
#
interface GigabitEthernet0/0/2
eth-trunk 1
#
interface GigabitEthernet0/0/3
eth-trunk 2
#
interface GigabitEthernet0/0/4
eth-trunk 2
#
interface GigabitEthernet0/0/5
eth-trunk 3
#
interface GigabitEthernet0/0/6
eth-trunk 3
#
ospf 1
area 0.0.0.0
network 192.168.10.0 0.0.0.255
R1:
#
interface Eth-Trunk1
undo portswitch
ip address 192.168.10.2 255.255.255.0
dhcp select global
#
interface Eth-Trunk2
undo portswitch
ip address 192.168.20.2 255.255.255.0
#
interface GigabitEthernet0/0/0
eth-trunk 1
#
interface GigabitEthernet0/0/1
eth-trunk 1
#
ospf 1
area 0.0.0.0
network 192.168.10.0 0.0.0.255
实验结束；
备注：如有错误，请谅解！
此文章为本人学习笔记，仅供参考！如有重复！！！请联系本人
