一:链路聚合概述
是将多个物理接口当作一个逻辑接口,以增加带宽和提供线路冗余。
成员接口:是将加入Eth-Trunk时注意以下问题
(1)每个Eth-Trunk接口最多可以包含8个成员接口
(2)成员接口不能单独配置任何功能和静态MAC地址
(3)成员接口加入Eth-Trunk时,必须为默认的hybrid类型接口
(4)Eth-trunk接口不能嵌套,即成员接口不能是Eth-trunk
(5)一个以太网接口中的成员接口必须是同一类型,即FE口和GE口不能加入同一个Eth-trunk接口
(6)可以将不同接口板上的以太网加入到同一个Eth-trunk
(7)如果本地设备使用了Eth-trunk,与成员接口直连的对端接口也必须捆绑为Eth-trunk接口这样两端才能正常通信
(8)当成员接口的速率不一致时,实际使用中速率小的接口可能出现拥塞,导致丢包
(9)当成员接口加入到Eth-trunk后,学习MAC地址时按照Eth-trunk来学习的,而不时按照成员接口来学习的
二:链路聚合模式
手工负载分担模式和静态LACP模式
主动端与被动端
在静态LACP模式下,聚合组俩段的设备中,需要选择一端为主动端,而另外一端为被动端,通常情况下,LACP优先级较高的一端为主动端,如果优先级一样,那么就选MAC地址小的一端为主动端
三:实验拓扑图
ip自行配置
(1)sw4,sw5,sw6,sw7,sw3的vlan和trunk的配置:
这里用sw4为例:
[sw4]vlan batch 2 to 6 //创建2,3,4,5vlan
[sw4]int g0/0/1
[sw4-GigabitEthernet0/0/1]port link-type trunk //打开中继链路
[sw4-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[sw4-GigabitEthernet0/0/1]quit
[sw4]int g0/0/3
[sw4-GigabitEthernet0/0/3]port link-type access
[sw4-GigabitEthernet0/0/3]port default vlan 2
[sw4-GigabitEthernet0/0/3]quit
[sw4]int g0/0/2
[sw4-GigabitEthernet0/0/2]port link-type access
[sw4-GigabitEthernet0/0/2]port default vlan 3
[sw4-GigabitEthernet0/0/2]quit
查看vlan信息:display vlan
(2)sw1和sw2上vlan,trunk,lacp配置:
lacp配置(sw1):
[sw1]lacp priority 1000
[sw1]int Eth-Trunk 12
[sw1-Eth-Trunk12]mode lacp-static
[sw1-Eth-Trunk12]load-balance dst-mac
[sw1-Eth-Trunk12]trunkport GigabitEthernet 0/0/23
[sw1-Eth-Trunk12]trunkport GigabitEthernet 0/0/24
[sw1-Eth-Trunk12]quit
(3)vlan间配置:
[sw1]vlan batch 2 to 9
[sw1]interface Eth-Trunk 12
[sw1-Eth-Trunk12]port link-type trunk
[sw1-Eth-Trunk12]port trunk allow-pass vlan all
[sw1-Eth-Trunk12]quit
[sw1]int g0/0/2
[sw1-GigabitEthernet0/0/2]port link-type trunk
[sw1-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[sw1-GigabitEthernet0/0/2]quit
[sw1]int g0/0/3
[sw1-GigabitEthernet0/0/3]port link-type trunk
[sw1-GigabitEthernet0/0/3]port trunk allow-pass vlan all
[sw1-GigabitEthernet0/0/3]quit
[sw1]int g0/0/1
[sw1-GigabitEthernet0/0/1]port link-type access
[sw1-GigabitEthernet0/0/1]port default vlan 7
[sw1-GigabitEthernet0/0/1]quit
interface Vlanif 2
ip address 192.168.2.1 255.255.255.0
interface Vlanif 3
ip address 192.168.3.1 255.255.255.0
interface Vlanif 4
ip address 192.168.4.1 255.255.255.0
interface Vlanif 7
ip address 192.168.7.1 255.255.255.0
(3)acp配置(sw2):
[sw2]int Eth-Trunk 12
[sw2-Eth-Trunk12]mode lacp-static
[sw2-Eth-Trunk12]trunkport GigabitEthernet 0/0/23
[sw2-Eth-Trunk12]trunkport GigabitEthernet 0/0/24
[sw2-Eth-Trunk12]quit
vlan间配置:
[sw2]vlan batch 2 to 9
[sw2]interface Eth-Trunk 12
[sw2-Eth-Trunk12]port link-type trunk
[sw2-Eth-Trunk12]port trunk allow-pass vlan all
[sw2-Eth-Trunk12]quit
[sw2]int g0/0/2
[sw2-GigabitEthernet0/0/2]port link-type trunk
[sw2-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[sw2-GigabitEthernet0/0/2]quit
[sw2]int g0/0/3
[sw2-GigabitEthernet0/0/3]port link-type trunk
[sw2-GigabitEthernet0/0/3]port trunk allow-pass vlan all
[sw2-GigabitEthernet0/0/3]quit
[sw2]int g0/0/1
[sw2-GigabitEthernet0/0/1]port link-type access
[sw2-GigabitEthernet0/0/1]port default vlan 8
[sw2-GigabitEthernet0/0/1]quit
interface Vlanif 5
ip address 192.168.5.1 255.255.255.0
interface Vlanif 6
ip address 192.168.6.1 255.255.255.0
interface Vlanif 8
ip address 192.168.8.1 255.255.255.0
ospf 的配置:
分别在R2,SW1,SW2配置ospf
R2:
配置IP地址略
配置ospf:
[R2]ospf 110
[R2-ospf-110]area 0
[R2-ospf-110-area-0.0.0.0]network 192.168.7.0 0.0.0.255
[R2-ospf-110-area-0.0.0.0]network 192.168.8.0 0.0.0.255
[R2-ospf-110-area-0.0.0.0]quit
[R2-ospf-110]quit
SW1的OSPF配置
ospf 110
area 0
network 192.168.7.0 0.0.0.255
network 192.168.2.0 0.0.0.255
network 192.168.3.0 0.0.0.255
network 192.168.4.0 0.0.0.255
network 192.168.9.0 0.0.0.255
quit
quit
SW2的ospf配置:
ospf 110
area 0
network 192.168.8.0 0.0.0.255
network 192.168.9.0 0.0.0.255
network 192.168.5.0 0.0.0.255
network 192.168.6.0 0.0.0.255
quit
quit
查看ospf学习达到路由表:
display ospf routing
4、单臂路由配置
SW3配置:
[sw3]vlan batch 10 to 11
int g0/0/1
port link-type trunk
port trunk allow-pass vlan all
quit
int g0/0/2
port link-type access
port default vlan 10
quit
int g0/0/3
port link-type access
port default vlan 11
quit
R4的单臂路由配置:
int G0/0/0.10
dot1q termination vid 10
ip address 192.168.10.1 255.255.255.0
arp broadcast enable
int G0/0/0.11
dot1q termination vid 11
ip address 192.168.11.1 255.255.255.0
arp broadcast enable
5、Rip的配置
分别R2,R3,R4上配置rip:
如:R3
rip
undo summary
version 2
network 192.168.12.0
network 192.168.13.0
6、配置路由器重分发
在R2上配置:
[R2]ospf 110
[R2-ospf-110]import-route rip 1
[R2-ospf-110]rip
[R2-rip-1]import-route ospf 110
[R2-rip-1]quit
查看路由表: display ip routing-table
查看接口配置IP地址: display ip interface brief
7、配置NAT及访问控制
在R2上配置:
(1)配置默认路由去往internet
ip route-static 0.0.0.0 0.0.0.0 200.0.0.2
(2)默认路由重分发
[R2]ospf 110
[R2-ospf-110]default-route-advertise
[R2-ospf-110]quit
[R2]rip
[R2-rip-1]default-route originate
[R2-rip-1]quit
(3)配置PAT实现内网能访问internet
[R2]nat address-group 1 200.0.0.100 200.0.0.100
[R2]acl 2000
[R2-acl-basic-2000]rule 0 permit source any
[R2-acl-basic-2000]quit
[R2]int g3/0/0
[R2-GigabitEthernet3/0/0]nat outbound 2000 address-group 1
[R2-GigabitEthernet3/0/0]quit
(4)配置静态NAT,将2.10服务器发布到internet。
[R2] int g3/0/0
[R2-GigabitEthernet3/0/0]nat server global 200.0.0.200 inside 192.168.2.10
[R2-GigabitEthernet3/0/0]quit
(5)ACL控制192.168.10.0网段不能访问internet
acl 3000
rule 0 deny ip source 192.168.10.0 0.0.0.255 destination 200.0.0.0 0.0.0.255
rule 5 deny ip source 192.168.10.0 0.0.0.255 destination 201.0.0.0 0.0.0.255
[R2]int g0/0/2
[R2-GigabitEthernet0/0/2]traffic-filter inbound acl 3000
[R2-GigabitEthernet0/0/2]quit
查看NAT转换条目:display nat session all
查看ACL信息: display acl all
查看ospf邻居信息: display ospf peer brief
原文地址:https://blog.51cto.com/14400213/2443738