配置VXLAN构建集中式网关部署方式的虚拟网络示例(IPv4 over IPv6,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。
- 服务器网络为IPv4网络,园区互联网络为IPv6网络。
- 各服务器上部署着大量的VM,不同业务的服务器之间需要实现三层互通。
数据准备
设备 |
VXLAN隧道 |
BD |
VNI |
Source IP |
Peer IP |
---|---|---|---|---|---|
VTEP1 |
VTEP1—>VTEP2 |
10 |
10 |
FC00::1 |
FC00::2 |
VTEP1—>VTEP3 |
20 |
20 |
FC00::1 |
FC00::3 |
|
VTEP2 |
VTEP2—>VTEP1 |
10 |
10 |
FC00::2 |
FC00::1 |
VTEP3 |
VTEP3—>VTEP1 |
20 |
20 |
FC00::3 |
FC00::1 |
配置思路
采用如下思路配置不同网段用户通过VXLAN网关互通:
- 分别在VTEP1、VTEP2、VTEP3上配置路由协议,保证网络三层互通。
- 分别在VTEP1、VTEP2、VTEP3上配置VXLAN接入业务部署方式,在Switch1、Switch2上配置VLAN。
- 分别在VTEP1、VTEP2、VTEP3上配置VXLAN隧道。
- 在VTEP1上配置VXLAN三层网关。
园区网络的三层互通是构建虚拟网络的基础条件,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VTEP2各接口IP地址。VTEP3和VTEP1的配置与VTEP2类似,这里不再赘述。配置OSPFv3时,注意需要发布设备上的Loopback接口地址。
<HUAWEI> system-view [HUAWEI] sysname VTEP2 [VTEP2] ipv6 [VTEP2] interface loopback 1 [VTEP2-LoopBack1] ipv6 enable [VTEP2-LoopBack1] ipv6 address FC00::2 128 [VTEP2-LoopBack1] quit [VTEP2] interface gigabitethernet 1/0/1 [VTEP2-GigabitEthernet1/0/1] undo portswitch [VTEP2-GigabitEthernet1/0/1] ipv6 enable [VTEP2-GigabitEthernet1/0/1] ipv6 address FC00:1::2 64 [VTEP2-GigabitEthernet1/0/1] quit [VTEP2] ospfv3 [VTEP2-ospfv3-1] router-id 0.0.0.2 [VTEP2-ospfv3-1] quit [VTEP2] interface loopback 1 [VTEP2-LoopBack1] ospfv3 1 area 0 [VTEP2-LoopBack1] quit [VTEP2] interface gigabitethernet 1/0/1 [VTEP2-GigabitEthernet1/0/1] ospfv3 1 area 0 [VTEP2-GigabitEthernet1/0/1] quit
# OSPFv3成功配置后,VTEP之间可通过OSPFv3协议发现对方Loopback接口的IP地址,并能互相ping通。以VTEP2 ping VTEP3的显示为例。
[VTEP2] ping ipv6 FC00::3 PING fc00::3 : 56 data bytes, press CTRL_C to break Reply from FC00::3 bytes=56 Sequence=1 hop limit=63 time = 3 ms Reply from FC00::3 bytes=56 Sequence=2 hop limit=63 time = 3 ms Reply from FC00::3 bytes=56 Sequence=3 hop limit=63 time = 5 ms Reply from FC00::3 bytes=56 Sequence=4 hop limit=63 time = 41 ms Reply from FC00::3 bytes=56 Sequence=5 hop limit=63 time = 3 ms --- fc00::3 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 3/11/41 ms
- 分别在VTEP2、VTEP3上配置业务接入点,在Switch1、Switch2上配置VLAN
# 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
# 配置VTEP3。
[VTEP3] bridge-domain 20 [VTEP3-bd20] quit [VTEP3] vcmp role silent [VTEP3] interface gigabitethernet 1/0/2 [VTEP3-GigabitEthernet1/0/2] port link-type trunk [VTEP3-GigabitEthernet1/0/2] quit [VTEP3] interface gigabitethernet 1/0/2.1 mode l2 [VTEP3-GigabitEthernet1/0/2.1] encapsulation dot1q vid 20 [VTEP3-GigabitEthernet1/0/2.1] bridge-domain 20 [VTEP3-GigabitEthernet1/0/2.1] quit
# 配置Switch1。
<HUAWEI> system-view [HUAWEI] sysname Switch1 [Switch1] vlan 10 [Switch1-vlan10] quit [Switch1] interface gigabitethernet 1/0/2 [Switch1-GigabitEthernet1/0/2] port link-type access [Switch1-GigabitEthernet1/0/2] port default vlan 10 [Switch1-GigabitEthernet1/0/2] quit [Switch1] interface gigabitethernet 1/0/1 [Switch1-GigabitEthernet1/0/1] port link-type trunk [Switch1-GigabitEthernet1/0/1] port trunk allow-pass vlan 10 [Switch1-GigabitEthernet1/0/1] quit
# 配置Switch2。
<HUAWEI> system-view [HUAWEI] sysname Switch2 [Switch2] vlan 20 [Switch2-vlan20] quit [Switch2] interface gigabitethernet 1/0/2 [Switch2-GigabitEthernet1/0/2] port link-type access [Switch2-GigabitEthernet1/0/2] port default vlan 20 [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 20 [Switch2-GigabitEthernet1/0/1] quit
- 分别在VTEP2、VTEP3、VTEP1上配置VXLAN隧道
# 配置VTEP2。
[VTEP2] bridge-domain 10 [VTEP2-bd10] vxlan vni 10 [VTEP2-bd10] quit [VTEP2] interface nve 1 [VTEP2-Nve1] source FC00::2 [VTEP2-Nve1] vni 10 head-end peer-list FC00::1 [VTEP2-Nve1] quit
# 配置VTEP3。
[VTEP3] bridge-domain 20 [VTEP3-bd20] vxlan vni 20 [VTEP3-bd20] quit [VTEP3] interface nve 1 [VTEP3-Nve1] source FC00::3 [VTEP3-Nve1] vni 20 head-end peer-list FC00::1 [VTEP3-Nve1] quit
# 配置VTEP1。
[VTEP1] bridge-domain 10 [VTEP1-bd10] vxlan vni 10 [VTEP1-bd10] quit [VTEP1] bridge-domain 20 [VTEP1-bd20] vxlan vni 20 [VTEP1-bd20] quit [VTEP1] interface nve 1 [VTEP1-Nve1] source FC00::1 [VTEP1-Nve1] vni 10 head-end peer-list FC00::2 [VTEP1-Nve1] vni 20 head-end peer-list FC00::3 [VTEP1-Nve1] quit
- 在VTEP1上配置VXLAN三层网关
[VTEP1] interface vbdif 10 [VTEP1-Vbdif10] ip address 192.168.10.1 24 [VTEP1-Vbdif10] quit [VTEP1] interface vbdif 20 [VTEP1-Vbdif20] ip address 192.168.20.1 24 [VTEP1-Vbdif20] quit
- 验证配置结果
# 上述配置成功后,在VTEP1、VTEP2、VTEP3上执行命令display vxlan vni可查看到VNI的状态是Up;执行命令display vxlan tunnel可查看到VXLAN隧道的信息。以VTEP1显示为例。
[VTEP1] display vxlan vni VNI BD-ID State ----------------------------------------- 10 10 up 20 20 up ----------------------------------------- Number of vxlan vni bound to BD is : 2 VNI VRF-ID ----------------------------------------- ----------------------------------------- Number of vxlan vni bound to VPN is : 0
[VTEP1] display vxlan tunnel Tunnel ID Source Destination State Type -------------------------------------------------------------------------------------------------------------------- 4026531841 FC00::1 FC00::2 up static 4026531842 FC00::1 FC00::3 up static -------------------------------------------------------------------------------------------------------------------- Number of vxlan tunnel : Total : 2 Static: 2 L2 dynamic: 0 L3 dynamic: 0
# 配置完成后,不同网段用户通过VXLAN网关可以互通。以服务器1上的VM1 ping服务器2上的VM1的显示为例。
C:\Users\VM1>ping 192.168.20.10 Pinging 192.168.20.10 with 32 bytes of data: Reply from 192.168.20.10: bytes=32 time=1ms TTL=126 Reply from 192.168.20.10: bytes=32 time=1ms TTL=126 Reply from 192.168.20.10: bytes=32 time=1ms TTL=126 Reply from 192.168.20.10: bytes=32 time=1ms TTL=126 Ping statistics for 192.168.20.10: 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 # ipv6 # ospfv3 1 router-id 0.0.0.1 # bridge-domain 10 vxlan vni 10 bridge-domain 20 vxlan vni 20 # interface GigabitEthernet1/0/1 undo portswitch ipv6 enable ipv6 address FC00:1::1/64 ospfv3 1 area 0.0.0.0 # interface GigabitEthernet1/0/2 undo portswitch ipv6 enable ipv6 address FC00:2::1/64 ospfv3 1 area 0.0.0.0 # interface LoopBack1 ipv6 enable ipv6 address FC00::1/128 ospfv3 1 area 0.0.0.0 # interface Vbdif10 ip address 192.168.10.1 255.255.255.0 # interface Vbdif20 ip address 192.168.20.1 255.255.255.0 # interface Nve1 source FC00::1 vni 10 head-end peer-list FC00::2 vni 20 head-end peer-list FC00::3 # return
VTEP2的配置文件
# sysname VTEP2 # ipv6 # vcmp role silent # ospfv3 1 router-id 0.0.0.1 # bridge-domain 10 vxlan vni 10 # interface GigabitEthernet1/0/1 undo portswitch ipv6 enable ipv6 address FC00:1::2/64 ospfv3 1 area 0.0.0.0 # interface GigabitEthernet1/0/2 port link-type trunk # interface GigabitEthernet1/0/2.1 mode l2 encapsulation dot1q vid 10 bridge-domain 10 # interface LoopBack1 ipv6 enable ipv6 address FC00::2/128 ospfv3 1 area 0.0.0.0 # interface Nve1 source FC00::2 vni 10 head-end peer-list FC00::1 # return
VTEP3的配置文件
# sysname VTEP3 # ipv6 # vcmp role silent # ospfv3 1 router-id 0.0.0.1 # bridge-domain 20 vxlan vni 20 # interface GigabitEthernet1/0/1 undo portswitch ipv6 enable ipv6 address FC00:2::2/64 ospfv3 1 area 0.0.0.0 # interface GigabitEthernet1/0/2 port link-type trunk # interface GigabitEthernet1/0/2.1 mode l2 encapsulation dot1q vid 20 bridge-domain 20 # interface LoopBack1 ipv6 enable ipv6 address FC00::3/128 ospfv3 1 area 0.0.0.0 # interface Nve1 source FC00::3 vni 20 head-end peer-list FC00::1 # return
Switch1的配置文件
# sysname Switch1 # 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
Switch2的配置文件
# sysname Switch2 # vlan batch 20 # interface GigabitEthernet1/0/1 port link-type trunk port trunk allow-pass vlan 20 # interface GigabitEthernet1/0/2 port link-type access port default vlan 20 # return