配置VXLAN构建虚拟网络实现相同网段互通示例(静态方式)
组网需求
- 将散落在不同部门的服务器构建成一个虚拟网络,实现资源整合和业务灵活部署。
- 各服务器上部署着大量的VM,相同业务的服务器之间需要实现二层互通。
- 各VM之间由于业务需求需要在服务器之间进行平滑迁移,且保证业务不中断。
本举例中VXLAN隧道侧接口以X系列单板为例。
数据准备
设备 |
VXLAN隧道 |
BD |
VNI |
Source IP |
Peer IP |
---|---|---|---|---|---|
VTEP1 |
VTEP1—>VTEP2 |
10 |
2010 |
10.1.1.2 |
10.2.2.2 |
VTEP2 |
VTEP2—>VTEP1 |
10 |
2010 |
10.2.2.2 |
10.1.1.2 |
配置思路
采用如下思路配置同网段用户通过VXLAN隧道互通:
- 分别在VTEP1、VTEP2、Switch1上配置路由协议,保证网络三层互通。
- 分别在VTEP1、VTEP2上配置VXLAN接入业务部署方式,在Switch2、Switch3上配置VLAN。
- 分别在VTEP1、VTEP2上配置VXLAN隧道。
园区网络的三层互通是构建虚拟数据中心网络的基础条件,现网中,如果园区网络已经实现三层网络的互通,那么该举例中的步骤1可以省略。
操作步骤
- 配置路由协议
# 配置VTEP1各接口IP地址。VTEP2和Switch1的配置与VTEP1类似,这里不再赘述。配置OSPF时,注意需要发布设备上的Loopback接口地址。
<HUAWEI> system-view [HUAWEI] sysname VTEP1 [VTEP1] interface loopback 1 [VTEP1-LoopBack1] ip address 10.1.1.2 32 [VTEP1-LoopBack1] quit [VTEP1] interface gigabitethernet 1/0/1 [VTEP1-GigabitEthernet1/0/1] undo portswitch [VTEP1-GigabitEthernet1/0/1] ip address 192.168.2.1 24 [VTEP1-GigabitEthernet1/0/1] quit [VTEP1] ospf router-id 10.1.1.2 [VTEP1-ospf-1] area 0 [VTEP1-ospf-1-area-0.0.0.0] network 10.1.1.2 0.0.0.0 [VTEP1-ospf-1-area-0.0.0.0] network 192.168.2.0 0.0.0.255 [VTEP1-ospf-1-area-0.0.0.0] quit [VTEP1-ospf-1] quit
# OSPF成功配置后,VTEP之间可通过OSPF协议发现对方的Loopback接口的IP地址,并能互相ping通。以VTEP1 ping VTEP2的显示为例。
[VTEP1] ping 10.2.2.2 PING 10.2.2.2: 56 data bytes, press CTRL_C to break Reply from 10.2.2.2: bytes=56 Sequence=1 ttl=255 time=240 ms Reply from 10.2.2.2: bytes=56 Sequence=2 ttl=255 time=5 ms Reply from 10.2.2.2: bytes=56 Sequence=3 ttl=255 time=5 ms Reply from 10.2.2.2: bytes=56 Sequence=4 ttl=255 time=14 ms Reply from 10.2.2.2: bytes=56 Sequence=5 ttl=255 time=5 ms --- 10.2.2.2 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 5/53/240 ms
- 分别在Switch2、Switch3上配置VLAN,在VTEP1、VTEP2上配置业务接入点
# 配置Switch2。
<HUAWEI> system-view [HUAWEI] sysname Switch2 [Switch2] vlan 10 [Switch2-vlan10] quit [Switch2] interface gigabitethernet 1/0/2 [Switch2-GigabitEthernet1/0/2] port link-type access [Switch2-GigabitEthernet1/0/2] port default vlan 10 [Switch2-GigabitEthernet1/0/2] quit [Switch2] interface gigabitethernet 1/0/1 [Switch2-GigabitEthernet1/0/1] port link-type trunk [Switch2-GigabitEthernet1/0/1] port trunk allow-pass vlan 10 [Switch2-GigabitEthernet1/0/1] quit
# 配置Switch3。
<HUAWEI> system-view [HUAWEI] sysname Switch3 [Switch3] vlan 10 [Switch3-vlan10] quit [Switch3] interface gigabitethernet 1/0/2 [Switch3-GigabitEthernet1/0/2] port link-type access [Switch3-GigabitEthernet1/0/2] port default vlan 10 [Switch3-GigabitEthernet1/0/2] quit [Switch3] interface gigabitethernet 1/0/1 [Switch3-GigabitEthernet1/0/1] port link-type trunk [Switch3-GigabitEthernet1/0/1] port trunk allow-pass vlan 10 [Switch3-GigabitEthernet1/0/1] quit
# 配置VTEP1。
[VTEP1] bridge-domain 10 [VTEP1-bd10] quit [VTEP1] vcmp role silent [VTEP1] interface gigabitethernet 1/0/2 [VTEP1-GigabitEthernet1/0/2] port link-type trunk [VTEP1-GigabitEthernet1/0/2] quit [VTEP1] interface gigabitethernet 1/0/2.1 mode l2 [VTEP1-GigabitEthernet1/0/2.1] encapsulation dot1q vid 10 [VTEP1-GigabitEthernet1/0/2.1] bridge-domain 10 [VTEP1-GigabitEthernet1/0/2.1] quit
# 配置VTEP2。
[VTEP2] bridge-domain 10 [VTEP2-bd10] quit [VTEP2] vcmp role silent [VTEP2] interface gigabitethernet 1/0/2 [VTEP2-GigabitEthernet1/0/2] port link-type trunk [VTEP2-GigabitEthernet1/0/2] quit [VTEP2] interface gigabitethernet 1/0/2.1 mode l2 [VTEP2-GigabitEthernet1/0/2.1] encapsulation dot1q vid 10 [VTEP2-GigabitEthernet1/0/2.1] bridge-domain 10 [VTEP2-GigabitEthernet1/0/2.1] quit
- 分别在VTEP1、VTEP2上配置VXLAN隧道
# 配置VTEP1。
[VTEP1] bridge-domain 10 [VTEP1-bd10] vxlan vni 2010 [VTEP1-bd10] quit [VTEP1] interface nve 1 [VTEP1-Nve1] source 10.1.1.2 [VTEP1-Nve1] vni 2010 head-end peer-list 10.2.2.2 [VTEP1-Nve1] quit
# 配置VTEP2。
[VTEP2] bridge-domain 10 [VTEP2-bd10] vxlan vni 2010 [VTEP2-bd10] quit [VTEP2] interface nve 1 [VTEP2-Nve1] source 10.2.2.2 [VTEP2-Nve1] vni 2010 head-end peer-list 10.1.1.2 [VTEP2-Nve1] quit
- 验证配置结果
# 上述配置成功后,在VTEP1、VTEP2上执行display vxlan vni命令可查看到VNI的状态是Up;执行display vxlan tunnel命令可查看到VXLAN隧道的信息。以VTEP1显示为例。
[VTEP1] display vxlan vni VNI BD-ID State ----------------------------------------- 2010 10 up ----------------------------------------- Number of vxlan vni bound to BD is : 1 VNI VRF-ID ----------------------------------------- ----------------------------------------- Number of vxlan vni bound to VPN is : 0
[VTEP1] display vxlan tunnel Tunnel ID Source Destination State Type ---------------------------------------------------------------------------- 4026531841 10.1.1.2 10.2.2.2 up static ---------------------------------------------------------------------------- Number of vxlan tunnel : Total : 1 Static: 1 L2 dynamic: 0 L3 dynamic: 0
# 配置完成后,同网段用户通过VXLAN隧道可以互通。以服务器上1的VM1 ping服务器2上的VM1的显示为例。
C:\Users\VM1>ping 192.168.10.2 Pinging 192.168.10.2 with 32 bytes of data: Reply from 192.168.10.2: bytes=32 time=1ms TTL=126 Reply from 192.168.10.2: bytes=32 time=1ms TTL=126 Reply from 192.168.10.2: bytes=32 time=1ms TTL=126 Reply from 192.168.10.2: bytes=32 time=1ms TTL=126 Ping statistics for 192.168.10.2: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 1ms, Maximum = 1ms, Average = 1ms
配置文件
VTEP1的配置文件
# sysname VTEP1 # vcmp role silent # bridge-domain 10 vxlan vni 2010 # interface GigabitEthernet1/0/1 undo portswitch ip address 192.168.2.1 255.255.255.0 # interface GigabitEthernet1/0/2 port link-type trunk # interface GigabitEthernet1/0/2.1 mode l2 encapsulation dot1q vid 10 bridge-domain 10 # interface LoopBack1 ip address 10.1.1.2 255.255.255.255 # interface Nve1 source 10.1.1.2 vni 2010 head-end peer-list 10.2.2.2 # ospf 1 router-id 10.1.1.2 area 0.0.0.0 network 10.1.1.2 0.0.0.0 network 192.168.2.0 0.0.0.255 # return
VTEP2的配置文件
# sysname VTEP2 # vcmp role silent # bridge-domain 10 vxlan vni 2010 # interface GigabitEthernet1/0/1 undo portswitch ip address 192.168.3.1 255.255.255.0 # interface GigabitEthernet1/0/2 port link-type trunk # interface GigabitEthernet1/0/2.1 mode l2 encapsulation dot1q vid 10 bridge-domain 10 # interface LoopBack1 ip address 10.2.2.2 255.255.255.255 # interface Nve1 source 10.2.2.2 vni 2010 head-end peer-list 10.1.1.2 # ospf 1 router-id 10.2.2.2 area 0.0.0.0 network 10.2.2.2 0.0.0.0 network 192.168.3.0 0.0.0.255 # return
Switch1的配置文件
# sysname Switch1 # interface GigabitEthernet1/0/1 undo portswitch ip address 192.168.2.2 255.255.255.0 # interface GigabitEthernet1/0/2 undo portswitch ip address 192.168.3.2 255.255.255.0 # ospf 1 router-id 192.168.2.2 area 0.0.0.0 network 192.168.2.0 0.0.0.255 network 192.168.3.0 0.0.0.255 # return
Switch2的配置文件
# sysname Switch2 # vlan batch 10 # interface GigabitEthernet1/0/1 port link-type trunk port trunk allow-pass vlan 10 # interface GigabitEthernet1/0/2 port link-type access port default vlan 10 # return
Switch3的配置文件
# sysname Switch3 # vlan batch 10 # interface GigabitEthernet1/0/1 port link-type trunk port trunk allow-pass vlan 10 # interface GigabitEthernet1/0/2 port link-type access port default vlan 10 # return