配置EVPN VPWS over MPLS示例

NetEngine 8000 X V800R012C00SPC300 配置指南 - VPN 04

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介绍EVPN专线业务的配置过程。

组网需求

如图12-43所示：PE1、PE2、RR和PE3属于同一自治系统，要求它们之间通过OSPF协议达到网络互连的目的，然后部署MPLS隧道承载EVPN专线业务。

图12-43 配置EVPN VPWS over MPLS组网图

本例中interface1、interface2、interface3分别代表GE1/0/0、GE2/0/0、GE3/0/0。

配置思路

采用如下的思路配置EVPN VPWS over MPLS：

在骨干网上配置IGP实现各个PE以及RR设备之间的互通。
在骨干网上配置MPLS基本能力和MPLS LDP，建立MPLS LSP。
在PE设备上配置EVPN VPWS实例、EVPL实例并将EVPL实例绑定到接入侧子接口。
在RR与PE设备之间建立BGP EVPN对等体关系，并在RR上指定各个PE为其反射器的客户机。
在PE设备上配置FRR功能。

数据准备

为完成此配置例，需准备如下的数据：

EVPN实例名称evrf1。
EVPN实例的RD值为100:1、100:2、100:3，RT为1:1。

操作步骤

按图12-43配置PE和RR的各接口地址，具体配置请参见配置文件。

在骨干网上配置IGP实现各个PE以及RR设备之间的互通。本例中IGP为OSPF为例进行说明。

# 配置PE1。

[~PE1] ospf 1

[*PE1-ospf-1] area 0

[*PE1-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255

[*PE1-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0

[*PE1-ospf-1-area-0.0.0.0] commit

[~PE1-ospf-1-area-0.0.0.0] quit

[~PE1-ospf-1] quit

# 配置PE2。

[~PE2] ospf 1

[*PE2-ospf-1] area 0

[*PE2-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255

[*PE2-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0

[*PE2-ospf-1-area-0.0.0.0] commit

[~PE2-ospf-1-area-0.0.0.0] quit

[~PE2-ospf-1] quit

# 配置PE3。

[~PE3] ospf 1

[*PE3-ospf-1] area 0

[*PE3-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.255

[*PE3-ospf-1-area-0.0.0.0] network 4.4.4.4 0.0.0.0

[*PE3-ospf-1-area-0.0.0.0] commit

[~PE3-ospf-1-area-0.0.0.0] quit

[~PE3-ospf-1] quit

# 配置RR。

[~RR] ospf 1

[*RR-ospf-1] area 0

[*RR-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255

[*RR-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255

[*RR-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.255

[*RR-ospf-1-area-0.0.0.0] network 3.3.3.3 0.0.0.0

[*RR-ospf-1-area-0.0.0.0] commit

[~RR-ospf-1-area-0.0.0.0] quit

[~RR-ospf-1] quit

在MPLS骨干网上配置MPLS基本能力和MPLS LDP，建立LDP LSP。

# 配置PE1。

[~PE1] mpls lsr-id 1.1.1.1

[*PE1] mpls

[*PE1-mpls] quit

[*PE1] mpls ldp

[*PE1-mpls-ldp] quit

[*PE1] interface gigabitethernet 2/0/0

[*PE1-GigabitEthernet2/0/0] mpls

[*PE1-GigabitEthernet2/0/0] mpls ldp

[*PE1-GigabitEthernet2/0/0] commit

[~PE1-GigabitEthernet2/0/0] quit

# 配置PE2。

[~PE2] mpls lsr-id 2.2.2.2

[*PE2] mpls

[*PE2-mpls] quit

[*PE2] mpls ldp

[*PE2-mpls-ldp] quit

[*PE2] interface gigabitethernet 2/0/0

[*PE2-GigabitEthernet2/0/0] mpls

[*PE2-GigabitEthernet2/0/0] mpls ldp

[*PE2-GigabitEthernet2/0/0] commit

[~PE2-GigabitEthernet2/0/0] quit

# 配置RR。

[~RR] mpls lsr-id 3.3.3.3

[*RR] mpls

[*RR-mpls] quit

[*RR] mpls ldp

[*RR-mpls-ldp] quit

[*RR] interface gigabitethernet 1/0/0

[*RR-GigabitEthernet1/0/0] mpls

[*RR-GigabitEthernet1/0/0] mpls ldp

[*RR-GigabitEthernet1/0/0] quit

[*RR] interface gigabitethernet 2/0/0

[*RR-GigabitEthernet2/0/0] mpls

[*RR-GigabitEthernet2/0/0] mpls ldp

[*RR-GigabitEthernet2/0/0] quit

[*RR] interface gigabitethernet 3/0/0

[*RR-GigabitEthernet3/0/0] mpls

[*RR-GigabitEthernet3/0/0] mpls ldp

[*RR-GigabitEthernet3/0/0] commit

[~RR-GigabitEthernet3/0/0] quit

# 配置PE3。

[~PE3] mpls lsr-id 4.4.4.4

[*PE3] mpls

[*PE3-mpls] quit

[*PE3] mpls ldp

[*PE3-mpls-ldp] quit

[*PE3] interface gigabitethernet 1/0/0

[*PE3-GigabitEthernet1/0/0] mpls

[*PE3-GigabitEthernet1/0/0] mpls ldp

[*PE3-GigabitEthernet1/0/0] commit

[~PE3-GigabitEthernet1/0/0] quit

在PE设备上配置EVPN实例、EVPL实例并将EVPL实例绑定到接入侧子接口

# 配置PE1。

[~PE1] evpn vpn-instance evrf1 vpws

[*PE1-vpws-evpn-instance-evrf1] route-distinguisher 100:1

[*PE1-vpws-evpn-instance-evrf1] vpn-target 1:1

[*PE1-vpws-evpn-instance-evrf1] quit

[*PE1] evpl instance 1 mpls-mode

[*PE1-evpl-mpls1] evpn binding vpn-instance evrf1

[*PE1-evpl-mpls1] local-service-id 100 remote-service-id 200

[*PE1-evpl-mpls1] quit

[*PE1] interface gigabitethernet 1/0/0

[*PE1-GigabitEthernet 1/0/0] esi 0001.0002.0003.0004.0005

[*PE1-GigabitEthernet 1/0/0] quit

[*PE1] interface gigabitethernet 1/0/0.1 mode l2

[*PE1-GigabitEthernet 1/0/0.1] encapsulation dot1q vid 1

[*PE1-GigabitEthernet 1/0/0.1] evpl instance 1

[*PE1-GigabitEthernet 1/0/0.1] quit

[*PE1] commit

# 配置PE2。

[~PE2] evpn vpn-instance evrf1 vpws

[*PE2-vpws-evpn-instance-evrf1] route-distinguisher 100:2

[*PE2-vpws-evpn-instance-evrf1] vpn-target 1:1

[*PE2-vpws-evpn-instance-evrf1] quit

[*PE2] evpl instance 1 mpls-mode

[*PE2-evpl-mpls1] evpn binding vpn-instance evrf1

[*PE2-evpl-mpls1] local-service-id 100 remote-service-id 200

[*PE2-evpl-mpls1] quit

[*PE2] interface gigabitethernet 1/0/0

[*PE2-GigabitEthernet 1/0/0] esi 0001.0002.0003.0004.0005

[*PE2-GigabitEthernet 1/0/0] quit

[*PE2] interface gigabitethernet 1/0/0.1 mode l2

[*PE2-GigabitEthernet 1/0/0.1] encapsulation dot1q vid 1

[*PE2-GigabitEthernet 1/0/0.1] evpl instance 1

[*PE2-GigabitEthernet 1/0/0.1] quit

[*PE2] commit

# 配置PE3。

[~PE3] evpn vpn-instance evrf1 vpws

[*PE3-vpws-evpn-instance-evrf1] route-distinguisher 100:3

[*PE3-vpws-evpn-instance-evrf1] vpn-target 1:1

[*PE3-vpws-evpn-instance-evrf1] quit

[*PE3] evpl instance 1 mpls-mode

[*PE3-evpl-mpls1] evpn binding vpn-instance evrf1

[*PE3-evpl-mpls1] local-service-id 200 remote-service-id 100

[*PE3-evpl-mpls1] quit

[*PE3] interface gigabitethernet 2/0/0.1 mode l2

[*PE3-GigabitEthernet 2/0/0.1] encapsulation dot1q vid 1

[*PE3-GigabitEthernet 2/0/0.1] evpl instance 1

[*PE3-GigabitEthernet 2/0/0.1] quit

[*PE2] commit

配置PE上的源地址。

# 配置PE1。

[~PE1] evpn source-address 1.1.1.1

[*PE1] commit

# 配置PE2。

[~PE2] evpn source-address 2.2.2.2

[*PE2] commit

# 配置PE3。

[~PE3] evpn source-address 4.4.4.4

[*PE3] commit

在RR与PE设备之间建立BGP EVPN对等体关系，并在RR上指定各个PE为其反射器的客户机

# 配置PE1。

[~PE1] bgp 100

[*PE1-bgp] peer 3.3.3.3 as-number 100

[*PE1-bgp] peer 3.3.3.3 connect-interface loopback 1

[*PE1-bgp] l2vpn-family evpn

[*PE1-bgp-af-evpn] peer 3.3.3.3 enable

[*PE1-bgp-af-evpn] quit

[*PE1-bgp] quit

[*PE1] commit

# 配置PE2。

[~PE2] bgp 100

[*PE2-bgp] peer 3.3.3.3 as-number 100

[*PE2-bgp] peer 3.3.3.3 connect-interface loopback 1

[*PE2-bgp] l2vpn-family evpn

[*PE2-bgp-af-evpn] peer 3.3.3.3 enable

[*PE2-bgp-af-evpn] quit

[*PE2-bgp] quit

[*PE2] commit

# 配置PE3。

[~PE3] bgp 100

[*PE3-bgp] peer 3.3.3.3 as-number 100

[*PE3-bgp] peer 3.3.3.3 connect-interface loopback 1

[*PE3-bgp] l2vpn-family evpn

[*PE3-bgp-af-evpn] peer 3.3.3.3 enable

[*PE3-bgp-af-evpn] quit

[*PE3-bgp] quit

[*PE3] commit

# 配置RR。

[~RR] bgp 100

[*RR-bgp] peer 1.1.1.1 as-number 100

[*RR-bgp] peer 1.1.1.1 connect-interface loopback 1

[*RR-bgp] peer 2.2.2.2 as-number 100

[*RR-bgp] peer 2.2.2.2 connect-interface loopback 1

[*RR-bgp] peer 4.4.4.4 as-number 100

[*RR-bgp] peer 4.4.4.4 connect-interface loopback 1

[*RR-bgp] l2vpn-family evpn

[*RR-bgp-af-evpn] peer 1.1.1.1 enable

[*RR-bgp-af-evpn] peer 1.1.1.1 reflect-client

[*RR-bgp-af-evpn] peer 2.2.2.2 enable

[*RR-bgp-af-evpn] peer 2.2.2.2 reflect-client

[*RR-bgp-af-evpn] peer 4.4.4.4 enable

[*RR-bgp-af-evpn] peer 4.4.4.4 reflect-client

[*RR-bgp-af-evpn] quit

[*RR-bgp] quit

[*RR] commit

配置完成后，在RR上执行display bgp evpn peer命令，可以看到RR与PE间BGP对等体关系已建立，并达到Established状态。

[~RR] display bgp evpn peer

 
 BGP local router ID : 3.3.3.3
 Local AS number : 100
 Total number of peers : 3                 Peers in established state : 3

  Peer            V          AS  MsgRcvd  MsgSent  OutQ  Up/Down       State  PrefRcv
  1.1.1.1         4         100        9       15     0 00:03:41 Established        1
  2.2.2.2         4         100        9       15     0 00:03:42 Established        1
  4.4.4.4         4         100        8       15     0 00:03:42 Established        1

在PE设备配置FRR功能

# 配置PE1。

[~PE1] evpn vpn-instance evrf1 vpws

[*PE1-vpws-evpn-instance-evrf1] local-remote frr enable

[*PE1-vpws-evpn-instance-evrf1] quit

[*PE1] commit

# 配置PE2。

[~PE2] evpn vpn-instance evrf1 vpws

[*PE2-vpws-evpn-instance-evrf1] local-remote frr enable

[*PE2-vpws-evpn-instance-evrf1] quit

[*PE2] commit

# 配置PE3。

[~PE3] evpn vpn-instance evrf1 vpws

[*PE3-vpws-evpn-instance-evrf1] remote frr enable

[*PE3-vpws-evpn-instance-evrf1] quit

[*PE3] commit

检查配置结果

在PE3上通过配置命令display bgp evpn all routing-table ad-route，可以查看到EVPN AD路由信息。

[~PE3] display bgp evpn all routing-table ad-route

 Local AS number : 100

 BGP Local router ID is 4.4.4.4
 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 A-D Routes: 3
 Route Distinguisher: 100:1
       Network(ESI/EthTagId)                                  NextHop
 *>i   0001.0002.0003.0004.0005:100                           1.1.1.1
 Route Distinguisher: 100:2
       Network(ESI/EthTagId)                                  NextHop
 *>i   0001.0002.0003.0004.0005:100                           2.2.2.2
 Route Distinguisher: 100:3
       Network(ESI/EthTagId)                                  NextHop
 *>    0000.0000.0000.0000.0000:200                           127.0.0.1
    

 EVPN-Instance evrf1:
 Number of A-D Routes: 3
       Network(ESI/EthTagId)                                  NextHop
 *>i   0001.0002.0003.0004.0005:100                           1.1.1.1
 * i                                                          2.2.2.2
 *>    0000.0000.0000.0000.0000:200                           127.0.0.1

在PE3上通过配置命令display bgp evpn all routing-table ad-route 0001.0002.0003.0004.0005:100，可以看到PE1和PE2发来的EVPN AD路由的详细信息，其中可以看到配置FRR功能后的Bypass隧道的标签信息。

[~PE3] display bgp evpn all routing-table ad-route 0001.0002.0003.0004.0005:100

 BGP local router ID : 4.4.4.4
 Local AS number : 100
 Total routes of Route Distinguisher(100:1): 1
 BGP routing table entry information of 0001.0002.0003.0004.0005:100:
 Label information (Received/Applied): 48123/NULL
 From: 3.3.3.3 (3.3.3.3) 
 Route Duration: 0d00h21m09s
 Relay IP Nexthop: 10.3.1.1
 Relay IP Out-Interface:GigabitEthernet1/0/0
 Relay Tunnel Out-Interface: LDP LSP
 Original nexthop: 1.1.1.1
 Qos information : 0x0
 Ext-Community: RT <1 : 1>, EVPN L2 Attributes <MTU:1500 C:0 P:1 B:0>, Bypass Label<0 : 0 : 48124>
 AS-path Nil, origin incomplete, localpref 100, pref-val 0, valid, internal, best, select, pre 255, IGP cost 2
 Originator: 1.1.1.1
 Cluster list: 3.3.3.3
 Route Type: 1 (Ethernet Auto-Discovery (A-D) route)
 ESI: 0001.0002.0003.0004.0005, Ethernet Tag ID: 100
 Not advertised to any peer yet
 
 Total routes of Route Distinguisher(100:2): 1
 BGP routing table entry information of 0001.0002.0003.0004.0005:100:
 Label information (Received/Applied): 48123/NULL
 From: 3.3.3.3 (3.3.3.3) 
 Route Duration: 0d00h20m52s
 Relay IP Nexthop: 10.3.1.1
 Relay IP Out-Interface:GigabitEthernet1/0/0
 Relay Tunnel Out-Interface: LDP LSP
 Original nexthop: 2.2.2.2
 Qos information : 0x0
 Ext-Community: RT <1 : 1>, EVPN L2 Attributes <MTU:1500 C:0 P:1 B:0>, Bypass Label<0 : 0 : 48124>
 AS-path Nil, origin incomplete, localpref 100, pref-val 0, valid, internal, best, select, pre 255, IGP cost 2
 Originator: 2.2.2.2
 Cluster list: 3.3.3.3
 Route Type: 1 (Ethernet Auto-Discovery (A-D) route)
 ESI: 0001.0002.0003.0004.0005, Ethernet Tag ID: 100
 Not advertised to any peer yet
 
    

 EVPN-Instance evrf1:
 Number of A-D Routes: 2
 BGP routing table entry information of 0001.0002.0003.0004.0005:100:
 Route Distinguisher: 100:1
 Remote-Cross route
 Label information (Received/Applied): 48123/NULL
 From: 3.3.3.3 (3.3.3.3) 
 Route Duration: 0d00h21m10s
 Relay Tunnel Out-Interface: LDP LSP
 Original nexthop: 1.1.1.1
 Qos information : 0x0
 Ext-Community: RT <1 : 1>, EVPN L2 Attributes <MTU:1500 C:0 P:1 B:0>, Bypass Label<0 : 0 : 48124>
 AS-path Nil, origin incomplete, localpref 100, pref-val 0, valid, internal, best, select, pre 255, IGP cost 2
 Originator: 1.1.1.1
 Cluster list: 3.3.3.3
 Route Type: 1 (Ethernet Auto-Discovery (A-D) route)
 ESI: 0001.0002.0003.0004.0005, Ethernet Tag ID: 100
 Not advertised to any peer yet
 
 BGP routing table entry information of 0001.0002.0003.0004.0005:100:
 Route Distinguisher: 100:2
 Remote-Cross route
 Label information (Received/Applied): 48123/NULL
 From: 3.3.3.3 (3.3.3.3) 
 Route Duration: 0d00h20m53s
 Relay Tunnel Out-Interface: LDP LSP
 Original nexthop: 2.2.2.2
 Qos information : 0x0
 Ext-Community: RT <1 : 1>, EVPN L2 Attributes <MTU:1500 C:0 P:1 B:0>, Bypass Label<0 : 0 : 48124>
 AS-path Nil, origin incomplete, localpref 100, pref-val 0, valid, internal, pre 255, IGP cost 2, not preferred for router ID
 Originator: 2.2.2.2
 Cluster list: 3.3.3.3
 Route Type: 1 (Ethernet Auto-Discovery (A-D) route)
 ESI: 0001.0002.0003.0004.0005, Ethernet Tag ID: 100
 Not advertised to any peer yet

配置文件

PE1的配置文件

#
sysname PE1
#
evpn vpn-instance evrf1 vpws
 route-distinguisher 100:1
 local-remote frr enable
 vpn-target 1:1 export-extcommunity
 vpn-target 1:1 import-extcommunity
#
evpl instance 1 mpls-mode
 evpn binding vpn-instance evrf1
 local-service-id 100 remote-service-id 200
#
mpls lsr-id 1.1.1.1
#               
mpls
#
mpls ldp
#
interface GigabitEthernet1/0/0
 undo shutdown
 esi 0001.0002.0003.0004.0005        
#
interface GigabitEthernet1/0/0.1 mode l2
 encapsulation dot1q vid 1
 evpl instance 1
#
interface GigabitEthernet2/0/0
 undo shutdown
 ip address 10.1.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 1.1.1.1 255.255.255.255
#
bgp 100
 peer 3.3.3.3 as-number 100
 peer 3.3.3.3 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 3.3.3.3 enable
 #
 l2vpn-family evpn
  undo policy vpn-target
  peer 3.3.3.3 enable
#
ospf 1
 area 0.0.0.0
  network 1.1.1.1 0.0.0.0
  network 10.1.1.0 0.0.0.255
#
evpn source-address 1.1.1.1
#
return

PE2的配置文件

#
sysname PE2
#
evpn vpn-instance evrf1 vpws
 route-distinguisher 100:2
 local-remote frr enable
 vpn-target 1:1 export-extcommunity
 vpn-target 1:1 import-extcommunity
#
evpl instance 1 mpls-mode
 evpn binding vpn-instance evrf1
 local-service-id 100 remote-service-id 200
#
mpls lsr-id 2.2.2.2
#               
mpls
#
mpls ldp
#
interface GigabitEthernet1/0/0
 undo shutdown
 esi 0001.0002.0003.0004.0005 
#
interface GigabitEthernet1/0/0.1 mode l2
 encapsulation dot1q vid 1
 evpl instance 1
#
interface GigabitEthernet2/0/0
 undo shutdown
 ip address 10.2.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 2.2.2.2 255.255.255.255
#
bgp 100
 peer 3.3.3.3 as-number 100
 peer 3.3.3.3 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 3.3.3.3 enable
 #
 l2vpn-family evpn
  undo policy vpn-target
  peer 3.3.3.3 enable
#
ospf 1
 area 0.0.0.0
  network 2.2.2.2 0.0.0.0
  network 10.2.1.0 0.0.0.255
#
evpn source-address 2.2.2.2
#
return

PE3的配置文件

#
sysname PE3
#
evpn vpn-instance evrf1 vpws
 route-distinguisher 100:3
 remote frr enable
 vpn-target 1:1 export-extcommunity
 vpn-target 1:1 import-extcommunity
#
evpl instance 1 mpls-mode
 evpn binding vpn-instance evrf1
 local-service-id 200 remote-service-id 100
#
mpls lsr-id 4.4.4.4
#               
mpls
#
mpls ldp
#
interface GigabitEthernet1/0/0
 undo shutdown  
 ip address 10.3.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet2/0/0.1 mode l2
 encapsulation dot1q vid 1
 evpl instance 1
#
interface LoopBack1
 ip address 4.4.4.4 255.255.255.255
#
bgp 100
 peer 3.3.3.3 as-number 100
 peer 3.3.3.3 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 3.3.3.3 enable
 #
 l2vpn-family evpn
  undo policy vpn-target
  peer 3.3.3.3 enable
#
ospf 1
 area 0.0.0.0
  network 4.4.4.4 0.0.0.0
  network 10.3.1.0 0.0.0.255
#
evpn source-address 4.4.4.4
#
return

RR的配置文件

#
sysname RR
#
mpls lsr-id 3.3.3.3
#
mpls
#
mpls ldp
#
interface GigabitEthernet2/0/0
 undo shutdown
 ip address 10.2.1.2 255.255.255.0
 mpls           
 mpls ldp
#
interface GigabitEthernet1/0/0
 undo shutdown
 ip address 10.1.1.2 255.255.255.0
 mpls
 mpls ldp
#
interface GigabitEthernet3/0/0
 undo shutdown
 ip address 10.3.1.1 255.255.255.0
 mpls
 mpls ldp
#
interface LoopBack1
 ip address 3.3.3.3 255.255.255.255
#
bgp 100
 peer 1.1.1.1 as-number 100
 peer 1.1.1.1 connect-interface LoopBack1
 peer 2.2.2.2 as-number 100
 peer 2.2.2.2 connect-interface LoopBack1
 peer 4.4.4.4 as-number 100
 peer 4.4.4.4 connect-interface LoopBack1
 #
 ipv4-family unicast
  undo synchronization
  peer 1.1.1.1 enable
  peer 2.2.2.2 enable
  peer 4.4.4.4 enable
 #
 l2vpn-family evpn
  undo policy vpn-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
  peer 4.4.4.4 enable
  peer 4.4.4.4 reflect-client
#
ospf 1
 area 0.0.0.0   
  network 3.3.3.3 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 10.2.1.0 0.0.0.255
  network 10.3.1.0 0.0.0.255
#
return

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更新时间：2020-06-20

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