需求：是pc1，pc2，pc3直接可以相互通信，ip分别pc1:192.168.1.2 pc2:192.168.3.2 pc3:192.168.5.2
LSW1配置：
首先划分vlan，vlan中配置ip，把端口划分到vlan中，给端口配置ip，ospf宣告网段，IP段是根据子网划分的，这里划分的是192.168.2.1 255.255.255.252 30位掩码
[Huawei]dis current-configuration
#
sysname Huawei
#
vlan batch 10
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
ip address 192.168.1.1 255.255.255.0
#
interface Vlanif10
ip address 192.168.2.1 255.255.255.252
#
interface MEth0/0/1
#
interface Ethernet0/0/1
port link-type access
port default vlan 10
#
interface Ethernet0/0/2
port link-type access
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ospf 1
area 0.0.0.100
network 192.168.1.0 0.0.0.255
network 192.168.2.0 0.0.0.3
#
user-interface con 0
user-interface vty 0 4
#
return学习到的网段
dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 10 Routes : 10
Destination/Mask Proto Pre Cost Flags NextHop Interface
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/24 Direct 0 0 D 192.168.1.1 Vlanif1
192.168.1.1/32 Direct 0 0 D 127.0.0.1 Vlanif1
192.168.2.0/30 Direct 0 0 D 192.168.2.1 Vlanif10
192.168.2.1/32 Direct 0 0 D 127.0.0.1 Vlanif10
192.168.2.4/30 OSPF 10 2 D 192.168.2.2 Vlanif10
192.168.3.0/24 OSPF 10 3 D 192.168.2.2 Vlanif10
192.168.4.0/24 OSPF 10 3 D 192.168.2.2 Vlanif10
192.168.5.0/24 OSPF 10 4 D 192.168.2.2 Vlanif10
LSW2配置：
首先划分vlan，vlan中配置ip，把端口划分到vlan中，给端口配置ip，ospf宣告网段，IP段是根据子网划分的，这里划分的是192.168.2.4/5 255.255.255.252 30位掩码
dis current-configuration
#
sysname Huawei
#
vlan batch 10 20
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
ip address 192.168.2.2 255.255.255.252
#
interface Vlanif20
ip address 192.168.2.5 255.255.255.252
#
interface MEth0/0/1
#
interface Ethernet0/0/1
port link-type access
port default vlan 20
#
interface Ethernet0/0/2
port link-type access
port default vlan 10
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ospf 1
area 0.0.0.100
network 192.168.2.4 0.0.0.3
network 192.168.2.0 0.0.0.255
#
user-interface con 0
user-interface vty 0 4
#
return 学习到的网段
dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 10 Routes : 10
Destination/Mask Proto Pre Cost Flags NextHop Interface
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/24 OSPF 10 2 D 192.168.2.1 Vlanif10
192.168.2.0/30 Direct 0 0 D 192.168.2.2 Vlanif10
192.168.2.2/32 Direct 0 0 D 127.0.0.1 Vlanif10
192.168.2.4/30 Direct 0 0 D 192.168.2.5 Vlanif20
192.168.2.5/32 Direct 0 0 D 127.0.0.1 Vlanif20
192.168.3.0/24 OSPF 10 2 D 192.168.2.6 Vlanif20
192.168.4.0/24 OSPF 10 2 D 192.168.2.6 Vlanif20
192.168.5.0/24 OSPF 10 3 D 192.168.2.6 Vlanif20 CE1配置：
首先划分vlan，vlan中配置ip，把端口划分到vlan中，给端口配置ip，ospf宣告网段，IP段是根据子网划分的，这里划分的是192.168.2.6 255.255.255.252 30位掩码
[~HUAWEI]dis current-configuration
!Software Version V800R013C00SPC560B560
!Last configuration was updated at 2019-04-02 23:57:11+00:00
#
sysname HUAWEI
#
device board 17 board-type CE-MPUB
device board 1 board-type CE-LPUE
#
vlan batch 20 30 40
#
aaa
#
authentication-scheme default
#
authorization-scheme default
#
accounting-scheme default
#
domain default
#
domain default_admin
#
interface Vlanif20
ip address 192.168.2.6 255.255.255.252
#
interface Vlanif30
ip address 192.168.3.1 255.255.255.0
#
interface Vlanif40
ip address 192.168.4.1 255.255.255.0
#
interface MEth0/0/0
undo shutdown
#
interface GE1/0/0
undo shutdown
port default vlan 30
#
interface GE1/0/1
undo shutdown
port default vlan 40
#
interface GE1/0/2
undo shutdown
port default vlan 20
#
interface NULL0
#
ospf 1
area 0.0.0.0
network 192.168.4.0 0.0.0.255
area 0.0.0.100
network 192.168.2.4 0.0.0.3
network 192.168.3.0 0.0.0.255
#
ssh authorization-type default aaa
#
user-interface con 0
#
vm-manager
#
return学习到的网段：
[~HUAWEI]dis ip routing-table
Proto: Protocol Pre: Preference
Route Flags: R - relay, D - download to fib, T - to -instance, B - black hole
route
------------------------------------------------------------------------------
Routing Table : _public_
Destinations : 16 Routes : 16
Destination/Mask Proto Pre Cost Flags NextHop Interface
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/24 OSPF 10 3 D 192.168.2.5 Vlanif20
192.168.2.0/30 OSPF 10 2 D 192.168.2.5 Vlanif20
192.168.2.4/30 Direct 0 0 D 192.168.2.6 Vlanif20
192.168.2.6/32 Direct 0 0 D 127.0.0.1 Vlanif20
192.168.2.7/32 Direct 0 0 D 127.0.0.1 Vlanif20
192.168.3.0/24 Direct 0 0 D 192.168.3.1 Vlanif30
192.168.3.1/32 Direct 0 0 D 127.0.0.1 Vlanif30
192.168.3.255/32 Direct 0 0 D 127.0.0.1 Vlanif30
192.168.4.0/24 Direct 0 0 D 192.168.4.1 Vlanif40
192.168.4.1/32 Direct 0 0 D 127.0.0.1 Vlanif40
192.168.4.255/32 Direct 0 0 D 127.0.0.1 Vlanif40
192.168.5.0/24 OSPF 10 2 D 192.168.4.2 Vlanif40
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0CE2配置：
首先划分vlan，vlan中配置ip，把端口划分到vlan中，给端口配置ip，ospf宣告网段
[~HUAWEI-GE1/0/1]dis current-configuration
!Software Version V800R013C00SPC560B560
!Last configuration was updated at 2019-04-02 23:52:32+00:00
#
sysname HUAWEI
#
device board 17 board-type CE-MPUB
device board 1 board-type CE-LPUE
#
vlan batch 40 50
#
aaa
#
authentication-scheme default
#
authorization-scheme default
#
accounting-scheme default
#
domain default
#
domain default_admin
#
interface Vlanif40
ip address 192.168.4.2 255.255.255.0
#
interface Vlanif50
ip address 192.168.5.1 255.255.255.0
#
interface MEth0/0/0
undo shutdown
#
interface GE1/0/0
undo shutdown
port default vlan 50
#
interface GE1/0/1
undo shutdown
port default vlan 40
#
interface NULL0
#
ospf 1
area 0.0.0.0
network 192.168.4.0 0.0.0.255
network 192.168.5.0 0.0.0.255
#
ssh authorization-type default aaa
#
user-interface con 0
#
vm-manager
#
return学习到的网段：
[~HUAWEI-GE1/0/1]dis ip routing-table
Proto: Protocol Pre: Preference
Route Flags: R - relay, D - download to fib, T - to -instance, B - black hole
route
------------------------------------------------------------------------------
Routing Table : _public_
Destinations : 14 Routes : 14
Destination/Mask Proto Pre Cost Flags NextHop Interface
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/24 OSPF 10 4 D 192.168.4.1 Vlanif40
192.168.2.0/30 OSPF 10 3 D 192.168.4.1 Vlanif40
192.168.2.4/30 OSPF 10 2 D 192.168.4.1 Vlanif40
192.168.3.0/24 OSPF 10 2 D 192.168.4.1 Vlanif40
192.168.4.0/24 Direct 0 0 D 192.168.4.2 Vlanif40
192.168.4.2/32 Direct 0 0 D 127.0.0.1 Vlanif40
192.168.4.255/32 Direct 0 0 D 127.0.0.1 Vlanif40
192.168.5.0/24 Direct 0 0 D 192.168.5.1 Vlanif50
192.168.5.1/32 Direct 0 0 D 127.0.0.1 Vlanif50
192.168.5.255/32 Direct 0 0 D 127.0.0.1 Vlanif50
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0 总结：
IP段是根据子网掩码划分的，如果不在同一个vlan中需要用到192.168.2.0段的话
这就要划分出互联ip，子网掩码是252的话，就是30位掩码，这样划分就是一个网
络地址一个广播地址，剩下两个为可用地址，如果不这样划分，掩码是255.255.255.0
的话，在其他vlan段中配置ip的192.168.2.0段ip的话会提示地址冲突（不同交换机）
同一设备不同的口子是直连
优先级：直连 >静态>动态