一、VXLAN拓扑
适合有网络基础的朋友进行阅读
二、 基本Underlay网络配置
配置OSPF实现DC1下面的N9K可以学到DC2下面N9K环回口路由反之亦然!
1、OSPF配置:
DC1配置:
interface Ethernet0/1
ip address 10.1.12.1 255.255.255.252
ip ospf 1 area 0
interface Ethernet0/0
ip address 20.1.1.2 255.255.255.252
ip ospf 1 area 0
DC2配置:
DC2#show run int e 0/0
interface Ethernet0/0
ip address 30.1.1.2 255.255.255.252
ip ospf 1 area 0
interface Ethernet0/2
ip address 10.1.23.2 255.255.255.252
ip ospf 1 area 0
duplex auto
SP配置:
SP#show run | s r ospf
router ospf 1
interface Ethernet0/1
ip address 10.1.12.2 255.255.255.252
ip ospf 1 area 0
interface Ethernet0/2
ip address 10.1
.23.1 255.255.255.252
ip ospf 1 area 0
数据中心N9K设备(NXOS1)配置:
feature ospf //开启OSPF功能
switch(config)# router ospf 1
//进入OSPF进程1
switch(config-router)# router-id 1.1.1.1 //配置RID
interface Ethernet1/1
no switchport
ip address 20.1.1.1/30
ip router ospf 1 area 0.0.0.0 //接口发布进OPSF区域0
no shutdown
数据中心N9K设备(NXOS2)配置:
switch(config)# feature ospf
switch(config)# router ospf 1
switch(config-router)# router-id 2.2.2.2
switch(config)# int e 1/1
switch(config-if)# no switchport
switch(config-if)# ip address 30.1.1.1 255.255.255.252
switch(config-if)# ip router ospf 1 area 0
三、验证OSPF邻居关系
1、SP:
SP#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
30.1.1.1 1 FULL/BDR 00:00:32 10.1.23.2 Ethernet0/2
20.1.1.2 1 FULL/BDR 00:00:37 10.1.12.1 Ethernet0/1
2、N9K1(N
XOS1)
switch# show ip ospf neighbors
OSPF Process ID 1 VRF default
Total number of neighbors: 1
Neighbor ID Pri State Up Time Address Interface
20.1.1.2 1 FULL/DR 00:09:00 20.1.1.2 Eth1/1
3、N9K2(NXOS2)
switch# show ip ospf neighbors
OSPF Process ID 1 VRF default
Total number of neighbors: 1
Neighbor ID Pri State Up Time Address Interface
30.1.1.1 1 FULL/DR 00:03:51 30.1.1.2 Eth1/1
4、查看N9K设备互相学到对端路由
N9K1(NXOS1)设备学到对端2.2.2.2的路由:
N9K2(NXOS2)设备学到对端1.1.1.1的路由:
N9K1可以Ping通N9K2
N9K1基本VLAN配置:
VLAN 10
interface Ethernet1/2
switchport access vlan 10
spanning-tree port type edge
N9K2基本VLAN配置:
VLAN 10
interface Ethernet1/2
switchport access vlan 10
spanning-tree port type edge
三、配置Overlay VXLAN
N9K1 VXLAN配置
N9K-1(config)# feature nv overlay //启用vxlan
N9K-1(config)# feature v
n-segment-vlan-based //全局启动vxlan桥域
N9K-1(config)# vlan 10 //配置VLAN10
N9K-1(config-vlan)# vn-segment 10010 //配置vxlan vnid
N9K
-1(config-vlan)# interface nve 1 //创建Vxlan nve接口,用于传输vxlan隧道
Warning: Enable double-wide arp-ether tcam carving if igmp snooping/Hsrp over vx lan is enabled. Ignore if tcam carving is already configured.
N9K-1(config-if-nve)# no shutdown
N9K-1(config-if-nve)# source-interface loopback 0 //配置用于去和对端互联的接口
N9K-1(config-if-nve)# member vni 10010 //绑定nve接口和vni
N9K-1(config-if-nve-vni)# ingress-replication protocol static //激活static ingress replication for the VN
N9K-1(config-if-nve-vni-ingr-rep)# peer-ip 2.2.2.2 //配置Vxlan peer
N9K2 VXLAN配置
N9K-2(config)# feature nv overlay
N9K-2(config)# feature vn-segment-vlan-based
N9K-2(config)# vlan 10
N9K-2(config-vlan)# vn-segment 10010
N9K-2(config-vlan)# interface nv1
N9K-2(config-if-nve)# no sh
N9K-2(config-if-nve)# source-interface loo0
N9K-2(config-if-nve)# member vni 10010
N9K-2(config-if-nve-vni)# ingress-replication protocol static
N9K-2(config-if-nve-vni-ingr-rep)# peer-ip 1.1.1.1
四、测试及抓包
VPCS> ping 192.168.1.2
84 bytes from 192.168.1.2 icmp_seq=1 ttl=64 time=27.095 ms
84 bytes from 192.168.1.2 icmp_seq=2 ttl=64 time=21.109 ms
PC之间可以实现互通
在DC1 E0/1进行抓包查看:
可以查看到VXLAN报文,VNI:10010, 使用UDP 目标端口4789
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