「EVPN for VXLAN」- 跨子网访问：分布式网关（Huawei）

  CREATED BY JENKINSBOT

0 基础网络配置

IP Address / OSPF

1 BGP / RR

for CE1

bgp 200
 undo default ipv4-unicast
 peer 10.0.0.2 as-number 200
 peer 10.0.0.2 connect-interface LoopBack0
 peer 10.0.0.3 as-number 200
 peer 10.0.0.3 connect-interface LoopBack0
 #
 ipv4-family unicast
  undo peer 10.0.0.2 enable
  undo peer 10.0.0.3 enable
 #
 l2vpn-family evpn
  undo policy vpn-target
  peer 10.0.0.2 enable
  peer 10.0.0.2 advertise irb
  peer 10.0.0.2 reflect-client
  peer 10.0.0.3 enable
  peer 10.0.0.3 advertise irb
  peer 10.0.0.3 reflect-client

for CE2

bgp 200
 undo default ipv4-unicast
 peer 10.0.0.1 as-number 200
 peer 10.0.0.1 connect-interface LoopBack0
 #
 ipv4-family unicast
  undo peer 10.0.0.1 enable
 #
 l2vpn-family evpn
  policy vpn-target
  peer 10.0.0.1 enable
  peer 10.0.0.1 advertise irb

for CE3

与 CE2 类似，略；

2 Bridge Domain

for CE2

ip vpn-instance vxlan
 ipv4-family
  route-distinguisher 523:1
  vpn-target 300523:1 export-extcommunity
  vpn-target 300523:1 export-extcommunity evpn
  vpn-target 300523:1 import-extcommunity
  vpn-target 300523:1 import-extcommunity evpn
 vxlan vni 5010
#
bridge-domain 368
 vxlan vni 7522
 evpn
  route-distinguisher 368:1
  vpn-target 368:1 export-extcommunity
  vpn-target 300523:1 export-extcommunity
  vpn-target 368:1 import-extcommunity
#
bridge-domain 523
 vxlan vni 1458
 evpn
  route-distinguisher 523:1
  vpn-target 523:1 export-extcommunity
  vpn-target 300523:1 export-extcommunity
  vpn-target 523:1 import-extcommunity

// -------------------------------------------------------- // Vbdif

interface Vbdif368
 ip binding vpn-instance vxlan
 ip address 192.168.20.254 255.255.255.0
 mac-address 0000-005e-0002
 vxlan anycast-gateway enable
 arp collect host enable
#
interface Vbdif523
 ip binding vpn-instance vxlan
 ip address 192.168.10.254 255.255.255.0
 mac-address 0000-005e-0001
 vxlan anycast-gateway enable
 arp collect host enable

for CE3

与 CE2 类似，略；

3 Interface Nve

for CE2

interface Nve1
 source 10.0.0.2
 vni 1458 head-end peer-list protocol bgp
 vni 7522 head-end peer-list protocol bgp

for CE3

与 CE2 类似，略；

4 配置设备接入

for CE2

interface GE1/0/1
 undo shutdown
#
interface GE1/0/1.1 mode l2
 encapsulation dot1q vid 121
 bridge-domain 523
#
interface GE1/0/2
 undo shutdown
#
interface GE1/0/2.1 mode l2
 encapsulation dot1q vid 122 // --------------------------- // 在模拟器中，其他接入方式多少都存在问题
 bridge-domain 523

for CE3

与 CE2 类似，略；

5 ping 测试

[PC1] ping PC3
[PC2] ping PC3
[PC4] ping PC3

[PC1] ping PC4

补充说明

Q：在什么要在拓扑中使用交换机？
A：我们尝试将 PC 直接接入 CE 设备，但是 ping 测试无法得到响应；