Vxlan L2

 

VXLAN（Virtual eXtensible LAN可扩展虚拟局域网）诞生了，基于IP网络之上，采用的是MAC in UDP技术

跨三层实现二层通信 

 

总结为何需要Vxlan：

  1. 虚拟机规模受到网络规格的限制，大L2网络里，报文通过查询MAC地址转发，MAC表容量限制了虚拟机的数量。
  2. 网络隔离的限制，普通的vlan和VPN配置无法满足动态网络调整的需求，同时配置复杂
  3. 虚拟器搬迁受到限制，虚拟机启动后假如在业务不中断基础上将该虚拟机迁移到另外一台物理机上去，需要保持虚拟机的IP地址和MAC地址等参数保持不变，这就要求业务网络是一个二层的网络。

 

 

拓扑图:

 

 

 

 

 

交换机配置:

CE1

 1 <HUAWEI>display cu
 2 <HUAWEI>display current-configuration 
 3 !Software Version V800R013C00SPC560B560
 4 !Last configuration was updated at 2019-05-11 16:01:45+00:00 by SYSTEM automatic
 5 ally
 6 !Last configuration was saved at 2019-04-24 16:54:42+00:00
 7 #
 8 sysname HUAWEI
 9 #
10 device board 17 board-type CE-MPUB
11 device board 1 board-type CE-LPUE
12 #
13 aaa
14  #
15  authentication-scheme default
16  #
17  authorization-scheme default
18  #
19  accounting-scheme default
20  #
21  domain default
22  #
23  domain default_admin
24 #
25 interface MEth0/0/0
26  undo shutdown
27 #
28 interface GE1/0/0
29  undo portswitch
30  undo shutdown
31  ip address 10.12.0.1 255.255.255.0
32 #
33 interface GE1/0/1
34  undo portswitch
35  undo shutdown
36  ip address 10.13.0.1 255.255.255.0
37 #
38 interface GE1/0/2
39  shutdown
40 #
41 interface GE1/0/3
42  shutdown
43 #
44 interface GE1/0/4
45  shutdown
46 #
47 interface GE1/0/5
48  shutdown
49 #
50 interface GE1/0/6
51  shutdown
52 #
53 interface GE1/0/7
54  shutdown
55 #
56 interface GE1/0/8
57  shutdown
58 #
59 interface GE1/0/9
60  shutdown
61 #
62 interface NULL0
63 #
64 ospf 1
65  area 0.0.0.0
66   network 10.12.0.0 0.0.0.255
67   network 10.13.0.0 0.0.0.255
68 #
69 ssh authorization-type default aaa
70 #
71 user-interface con 0
72 #
73 vm-manager
74 #
75 return
View Code

CE2

 1 <HUAWEI>display current-configuration 
 2 !Software Version V800R013C00SPC560B560
 3 !Last configuration was updated at 2019-05-12 08:45:20+00:00
 4 !Last configuration was saved at 2019-05-12 08:54:59+00:00
 5 #
 6 sysname HUAWEI
 7 #
 8 device board 17 board-type CE-MPUB
 9 device board 1 board-type CE-LPUE
10 #
11 vlan batch 10
12 #
13 bridge-domain 10
14  vxlan vni 100
15 #
16 aaa
17  #
18  authentication-scheme default
19  #
20  authorization-scheme default
21  #
22  accounting-scheme default
23  #
24  domain default
25  #
26  domain default_admin
27 #
28 interface Vlanif10
29  ip address 1.1.1.254 255.255.255.0
30 #
31 interface MEth0/0/0
32  undo shutdown
33 #
34 interface GE1/0/0
35  undo shutdown
36  port link-type trunk
37 #
38 interface GE1/0/0.1 mode l2
39  encapsulation dot1q vid 10
40  bridge-domain 10
41 #
42 interface GE1/0/1
43  undo portswitch
44  undo shutdown
45  ip address 10.12.0.2 255.255.255.0
46 #
47 interface GE1/0/2
48  shutdown
49 #
50 interface GE1/0/3
51  shutdown
52 #
53 interface GE1/0/4
54  shutdown
55 #
56 interface GE1/0/5
57  shutdown
58 #
59 interface GE1/0/6
60  shutdown
61 #
62 interface GE1/0/7
63  shutdown
64 #
65 interface GE1/0/8
66  shutdown
67 #
68 interface GE1/0/9
69  shutdown
70 #
71 interface LoopBack0
72  ip address 10.2.2.2 255.255.255.255
73 #
74 interface Nve1
75  source 10.2.2.2
76  vni 100 head-end peer-list 10.3.3.3
77 #
78 interface NULL0
79 #
80 ospf 1
81  area 0.0.0.0
82   network 10.2.2.2 0.0.0.0
83   network 10.12.0.0 0.0.0.255
84 #
85 ssh authorization-type default aaa
86 #
87 user-interface con 0
88 #
89 vm-manager
90 #
91 return
View Code

CE3

 1 <HUAWEI>display current-configuration 
 2 !Software Version V800R013C00SPC560B560
 3 !Last configuration was updated at 2019-05-11 16:01:47+00:00 by SYSTEM automatic
 4 ally
 5 !Last configuration was saved at 2019-05-12 08:49:09+00:00
 6 #
 7 sysname HUAWEI
 8 #
 9 device board 17 board-type CE-MPUB
10 device board 1 board-type CE-LPUE
11 #
12 vlan batch 10
13 #
14 bridge-domain 10
15  vxlan vni 100
16 #
17 aaa
18  #
19  authentication-scheme default
20  #
21  authorization-scheme default
22  #
23  accounting-scheme default
24  #
25  domain default
26  #
27  domain default_admin
28 #
29 interface MEth0/0/0
30  undo shutdown
31 #
32 interface GE1/0/0
33  undo portswitch
34  undo shutdown
35  ip address 10.13.0.3 255.255.255.0
36 #
37 interface GE1/0/1
38  undo shutdown
39  port link-type trunk
40 #
41 interface GE1/0/1.1 mode l2
42  encapsulation dot1q vid 10
43  bridge-domain 10
44 #
45 interface GE1/0/2
46  shutdown
47 #
48 interface GE1/0/3
49  shutdown
50 #
51 interface GE1/0/4
52  shutdown
53 #
54 interface GE1/0/5
55  shutdown
56 #
57 interface GE1/0/6
58  shutdown
59 #
60 interface GE1/0/7
61  shutdown
62 #
63 interface GE1/0/8
64  shutdown
65 #
66 interface GE1/0/9
67  shutdown
68 #
69 interface LoopBack0
70  ip address 10.3.3.3 255.255.255.255
71 #
72 interface Nve1
73  source 10.3.3.3
74  vni 100 head-end peer-list 10.2.2.2
75 #
76 interface NULL0
77 #
78 ospf 1
79  area 0.0.0.0
80   network 10.3.3.3 0.0.0.0
81   network 10.13.0.0 0.0.0.255
82 #
83 ssh authorization-type default aaa
84 #
85 user-interface con 0
86 #
87 vm-manager
88 #
89 return
View Code

LSW1

 1 #
 2 vlan batch 10
 3 #
 4 interface GigabitEthernet0/0/1
 5  port link-type trunk
 6  port trunk allow-pass vlan 10
 7 #
 8 interface GigabitEthernet0/0/2
 9  port link-type access
10  port default vlan 10
11 #
View Code

LSW2

 1 #
 2 vlan batch 10
 3 #
 4 interface GigabitEthernet0/0/1
 5  port link-type trunk
 6  port trunk allow-pass vlan 10
 7 #
 8 interface GigabitEthernet0/0/2
 9  port link-type access
10  port default vlan 10
View Code

 

 PC1 PING PC2 验证:

 

 

posted @ 2019-05-12 09:11  caocong  阅读(652)  评论(0)  编辑  收藏  举报