玩转华为ENSP模拟器系列 | 配置EdVdPdNd L3VdPdNd并查看路由信息

Posted 2022-05-20 COCOgsta

素材来源：华为路由器配置指南

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目标

配置BGP的EVPN地址族以实现PE设备之间的EVPN前缀路由的传递

组网模型

配置思路

• 配置使能EVPN的基于IPv4的L3VPN实例。

• 配置静态路由使两台PE的Loopback地址互通。

• 创建一个BGP实例。

• 配置iBGP对等体。

• 配置基于IPv4的BGP-VPN。

• 使能BGP的EVPN地址族。

操作步骤

1. PE1节点配置

配置使能EVPN的基于IPv4的L3VPN实例

PE1:
ip vpn-instance test
 ipv4-family
  route-distinguisher 100:1
  apply-label per-instance
  vpn-target 100:1 export-extcommunity evpn
  vpn-target 100:1 import-extcommunity evpn
  evpn mpls routing-enable
interface Ethernet1/0/1.1
 vlan-type dot1q 1
 ip binding vpn-instance test
 ip address 10.0.0.1 255.255.255.0

配置静态路由使两台PE的Loopback地址互通

PE1:
interface LoopBack1
 ip address 1.1.1.134 255.255.255.255
interface Ethernet1/0/0
 ip address 100.0.0.1 255.255.255.0
ip route-static 1.1.1.135 255.255.255.255 100.0.0.2

创建一个BGP实例

PE1:
bgp 65000

配置iBGP对等体

PE1:
bgp 65000
 peer 1.1.1.135 as-number 65000
 peer 1.1.1.135 connect-interface LoopBack1

配置基于IPv4的BGP-VPN

PE1:
bgp 65000
 ipv4-family vpn-instance test
  import-route direct
  advertise l2vpn evpn

使能BGP的EVPN地址族

PE1:
bgp 65000
 l2vpn-family evpn
  peer 1.1.1.135 enable

使能设备的MPLS和MPLS LDP

PE1:
mpls lsr-id 1.1.1.134
mpls
mpls ldp
interface Ethernet1/0/0
 mpls
 mpls ldp

1. PE2节点配置

配置使能EVPN的基于IPv4的L3VPN实例

PE2:
ip vpn-instance test
 ipv4-family
  route-distinguisher 100:1
  apply-label per-instance
  vpn-target 100:1 export-extcommunity evpn
  vpn-target 100:1 import-extcommunity evpn
  evpn mpls routing-enable
interface Ethernet1/0/1.1
 vlan-type dot1q 1
 ip binding vpn-instance test
 ip address 20.0.0.1 255.255.255.0

配置静态路由使两台PE的Loopback地址互通

PE2:
interface LoopBack1
 ip address 1.1.1.135 255.255.255.255
interface Ethernet1/0/0
 ip address 100.0.0.2 255.255.255.0
ip route-static 1.1.1.134 255.255.255.255 100.0.0.1

创建一个BGP实例

PE2:
bgp 65000

配置iBGP对等体

PE2:
bgp 65000
 peer 1.1.1.134 as-number 65000
 peer 1.1.1.134 connect-interface LoopBack1

配置基于IPv4的BGP-VPN

PE2:
bgp 65000
 ipv4-family vpn-instance test
  import-route direct
  advertise l2vpn evpn

使能BGP的EVPN地址族

PE2:
bgp 65000
 l2vpn-family evpn
  peer 1.1.1.134 enable

使能设备的MPLS和MPLS LDP

PE2:
mpls lsr-id 1.1.1.135
mpls
mpls ldp
interface Ethernet1/0/0
 mpls
 mpls ldp

1. 配置验证

查看L3VPN实例的路由表

[~PE1-Ethernet1/0/0]dis ip routing-table vpn-instance test 
Route Flags: R - relay, D - download to fib, T - to vpn-instance, B - black hole
 route
------------------------------------------------------------------------------
Routing Table : test
         Destinations : 6        Routes : 6         
Destination/Mask    Proto   Pre  Cost        Flags NextHop         Interface
       10.0.0.0/24  Direct  0    0             D   10.0.0.1        Ethernet1/0/1
.1
       10.0.0.1/32  Direct  0    0             D   127.0.0.1       Ethernet1/0/1
.1
     10.0.0.255/32  Direct  0    0             D   127.0.0.1       Ethernet1/0/1
.1
       20.0.0.0/24  IBGP    255  0             RD  1.1.1.135       Ethernet1/0/0
      127.0.0.0/8   Direct  0    0             D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0             D   127.0.0.1       InLoopBack0
[~PE1-Ethernet1/0/0]

查看EVPN前缀路由表

[~PE1-Ethernet1/0/0] dis bgp evpn all routing-table prefix-route 0:20.0.0.0:24
 BGP local router ID : 1.1.1.134
 Local AS number : 65000
 Total routes of Route Distinguisher(100:1): 1
 BGP routing table entry information of 0:20.0.0.0:24:
 Label information (Received/Applied): 48121/NULL
 From: 1.1.1.135 (1.1.1.135) 
 Route Duration: 0d00h03m26s
 Relay IP Nexthop: 100.0.0.2
 Relay Tunnel Out-Interface: LDP LSP
 Original nexthop: 1.1.1.135
 Qos information : 0x0
 Ext-Community: RT <100 : 1>
 AS-path Nil, origin incomplete, MED 0, localpref 100, pref-val 0, valid, intern
al, best, select, pre 255
 Route Type: 5 (Ip Prefix Route)
 Ethernet Tag ID: 0, IP Prefix/Len: 20.0.0.0/24, ESI: 0000.0000.0000.0000.0000, 
GW IP Address: 0.0.0.0
 Not advertised to any peer yet
 EVPN-Instance __RD_1_100_1__:
 Number of Ip Prefix Routes: 1
 BGP routing table entry information of 0:20.0.0.0:24:
 Route Distinguisher: 100:1
 Remote-Cross route
 Label information (Received/Applied): 48121/NULL
 From: 1.1.1.135 (1.1.1.135) 
 Route Duration: 0d00h03m26s
 Relay Tunnel Out-Interface: LDP LSP
 Original nexthop: 1.1.1.135
 Qos information : 0x0
 Ext-Community: RT <100 : 1>
 AS-path Nil, origin incomplete, MED 0, localpref 100, pref-val 0, valid, intern
al, best, select, pre 255
 Route Type: 5 (Ip Prefix Route)
 Ethernet Tag ID: 0, IP Prefix/Len: 20.0.0.0/24, ESI: 0000.0000.0000.0000.0000, 
GW IP Address: 0.0.0.0
 Not advertised to any peer yet
[~PE1-Ethernet1/0/0]