vxlan专题---第四章配置分布式网关部署方式的华为VXLAN示例-外部路由type5
本次华为vxlan实验采用eve-ng 5.0模拟器，使用华为CE12800、AR1000v、思科接入交换机两台。关于两个数据中心大二层互通、跨三层互通，已经在第二章和第三章讲解了。本次注意说明vxlan网络与非vxlan（互联网）如何互通。
1、ar100v模拟互联网区域
2、ce03作为spine和Border 作为外部引入，通告整个vlan中。
前言：
Type5路由——IP前缀路由
该类型路由的IP Prefix Length和IP Prefix字段既可以携带主机IP地址，也可以携带网段地址：
•当携带主机IP地址时，该类型路由在VXLAN控制平面中的作用与IRB类型路由是一样的，主要用于分布式网关场景中的主机IP路由通告。
•当携带网段地址时，通过传递该类型路由，可以实现VXLAN网络中的主机访问外部网络。
1、拓扑图
2、配置
2.1互联网的ar路由互联
inter g1/0/2
ip binding -instance A
ip address 43.1.1.3 255.255.255.0
#
2.2创建实例几三层vni
ip -instance A
ipv4-family
route-distinguisher 3:4
-target 10:10 export-extcommunity e
-target 10:10 import-extcommunity e
vxlan vni 55
#
注意-target是e
2.3 配置默认路由
ip route-static -instance A 0.0.0.0 0.0.0.0 43.1.1.4
ip route-static -instance A 11.1.1.0 255.255.255.0 43.1.1.4
2.4 e发布前缀路由type5
bgp 100 instance e1
router-id 3.3.3.3
peer 1.1.1.1 as-number 100
peer 1.1.1.1 connect-interface LoopBack0
peer 2.2.2.2 as-number 100
peer 2.2.2.2 connect-interface LoopBack0
ipv4-family -instance A
default-route imported
network 0.0.0.0
import-route static
advertise l2 e
#
在bgp 族引入默认路由，并发布到e中。
整体配置
dis cu
!Software Version V200R005C10SPC607B607
!Last configuration was updated at 2022-07-05 08:50:02+00:00
!Last configuration was saved at 2022-07-05 09:11:25+00:00
#
sysname CE03
#
device board 17 board-type CE-MPUB
device board 1 board-type CE-LPUE
#
e-overlay enable
#
ip -instance A
ipv4-family
route-distinguisher 3:4
-target 10:10 export-extcommunity e
-target 10:10 import-extcommunity e
vxlan vni 55
#
ip binding -instance A
ip address 43.1.1.3 255.255.255.0
#
#
interface LoopBack0
ip address 3.3.3.3 255.255.255.255
#
interface Nve1
source 3.3.3.3
#
interface NULL0
#
bgp 100 instance e1
router-id 3.3.3.3
peer 1.1.1.1 as-number 100
peer 1.1.1.1 connect-interface LoopBack0
peer 2.2.2.2 as-number 100
peer 2.2.2.2 connect-interface LoopBack0
#
l2-family e
undo policy -target
peer 1.1.1.1 enable
peer 1.1.1.1 reflect-client
peer 2.2.2.2 enable
peer 2.2.2.2 reflect-client
#
ipv4-family -instance A
default-route imported
network 0.0.0.0
import-route static
advertise l2 e
#
ospf 10 router-id 3.3.3.3
area 0.0.0.0
network 3.3.3.3 0.0.0.0
network 13.1.1.3 0.0.0.0
network 23.1.1.3 0.0.0.0
#
ip route-static -instance A 0.0.0.0 0.0.0.0 43.1.1.4
ip route-static -instance A 11.1.1.0 255.255.255.0 43.1.1.4
3、验证
ce3上查看前缀路由
[~CE03]dis bgp instance e1 e all routing-table ?
inclusive-route Inclusive Multicast Route
mac-route MAC Advertisement Route
peer Peer routers
prefix-route IP-prefix routes
statistics Statistics of route
| Matching output
> Redirect the output to a file
>> Redirect the output to a file in append mode
[~CE03]dis bgp instance e1 e all routing-table pr
[~CE03]dis bgp instance e1 e all routing-table prefix-route
Local AS number : 100
BGP Local router ID is 3.3.3.3
Status codes: * - valid, > - best, d - damped, x - best external, a - add path,
h - history, i - internal, s - suppressed, S - Stale
Origin : i - IGP, e - EGP, ? - incomplete
EVPN address family:
Number of Ip Prefix Routes: 3
Route Distinguisher: 3:4
Network(EthTagId/IpPrefix/IpPrefixLen) NextHop
*> 0:0.0.0.0:0 0.0.0.0
* 0.0.0.0
*> 0:11.1.1.0:24 0.0.0.0
EVPN-Instance __RD_1_3_4__:
Number of Ip Prefix Routes: 3
Network(EthTagId/IpPrefix/IpPrefixLen) NextHop
*> 0:0.0.0.0:0 0.0.0.0
* 0.0.0.0
*> 0:11.1.1.0:24 0.0.0.0
ce1上查看路由
[~CE01]dis ip routing-table -instance A
Proto: Protocol Pre: Preference
Route Flags: R - relay, D - download to fib, T - to -instance, B - black hole route
------------------------------------------------------------------------------
Routing Table : A
Destinations : 9 Routes : 9
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 IBGP 255 0 RD 3.3.3.3 VXLAN
11.1.1.0/24 IBGP 255 0 RD 3.3.3.3 VXLAN
172.16.1.0/24 Direct 0 0 D 172.16.1.254 Vbdif20
172.16.1.254/32 Direct 0 0 D 127.0.0.1 Vbdif20
172.16.1.255/32 Direct 0 0 D 127.0.0.1 Vbdif20
192.168.1.0/24 Direct 0 0 D 192.168.1.254 Vbdif10
192.168.1.254/32 Direct 0 0 D 127.0.0.1 Vbdif10
192.168.1.255/32 Direct 0 0 D 127.0.0.1 Vbdif10
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[~CE01]
pc测试
es from 11.1.1.1 icmp_seq=2 ttl=61 time=4.781 ms
84 bytes from 11.1.1.1 icmp_seq=3 ttl=61 time=5.231 ms
84 bytes from 11.1.1.1 icmp_seq=4 ttl=61 time=6.456 ms
84 bytes from 11.1.1.1 icmp_seq=5 ttl=61 time=5.092 ms
VPCS> trace 11.1.1.1
trace to 11.1.1.1, 8 hops max, press Ctrl+C to stop
1 192.168.1.254 13.446 ms 5.638 ms 3.441 ms
2 * * *
3 43.1.1.4 9.715 ms 5.565 ms 5.492 ms
4 *11.1.1.1 8.536 ms (ICMP type:3, code:3, Destination port unreachable)
VPCS> ping 11.1.1.1
84 bytes from 11.1.1.1 icmp_seq=1 ttl=61 time=7.009 ms
84 bytes from 11.1.1.1 icmp_seq=2 ttl=61 time=8.312 ms
84 bytes from 11.1.1.1 icmp_seq=3 ttl=61 time=6.321 ms
84 bytes from 11.1.1.1 icmp_seq=4 ttl=61 time=5.202 ms
84 bytes from 11.1.1.1 icmp_seq=5 ttl=61 time=6.477 ms
VPCS>
