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MSR系列路由器

MPLS Carrier’s Carrier基本配置

 

关键词：MSR;MPLS;L3VPN;OSPF多实例

 

一、组网需求：

PEA和PEB为1级运营商的PE，分别连接2级运营商的出口CEA和CEB。

设备清单：MSR系列路由器4台

二、组网图：

 

三、配置步骤：

设备和版本：MSR系列、Version 5.20, Release 1509

CEA配置

#

 router id 3.3.3.3

#

interface Ethernet0/0

 port link-mode route

 description connects to peA

 ip address 1.3.0.3 255.255.255.0

#

interface Ethernet0/1

 port link-mode route

 description connects to vpncc site1

 ip address 172.32.3.1 255.255.255.0

#

interface LoopBack0

 description router id

 ip address 3.3.3.3 255.255.255.255

#

ospf 1

 area 0.0.0.0

  network 3.3.3.3 0.0.0.0

  network 1.3.0.0 0.0.0.255

  network 172.32.3.0 0.0.0.255

#

PEA配置

#

router id 1.1.1.1

#

ip vpn-instance vpncc

 route-distinguisher 1:1

 vpn-target 1:1 export-extcommunity

 vpn-target 1:1 import-extcommunity

#

mpls lsr-id 1.1.1.1

#

mpls

#

mpls ldp

#

interface Ethernet0/0

 port link-mode route

 description connects to peB

 ip address 1.2.0.1 255.255.255.0

 mpls

 mpls ldp

#

interface Ethernet0/1

 port link-mode route

 description connects to ceA

 ip binding vpn-instance vpncc

 ip address 1.3.0.1 255.255.255.0

#

interface LoopBack0

 description router id

 ip address 1.1.1.1 255.255.255.255

#

interface LoopBack1

description vpncc’s router id            //用于OSPF多实例的router id

 ip binding vpn-instance vpncc

 ip address 1.0.0.1 255.255.255.255

#

bgp 1

 undo synchronization

 peer 2.2.2.2 as-number 1

 peer 2.2.2.2 connect-interface LoopBack0

 #

 ipv4-family vpnv4

  peer 2.2.2.2 enable

 #

 ipv4-family vpn-instance vpncc

  import-route ospf 2

#

ospf 1

 area 0.0.0.0

  network 1.1.1.1 0.0.0.0

  network 1.2.0.0 0.0.0.255

#

ospf 2 router-id 1.0.0.1 vpn-instance vpncc

 import-route bgp

 area 0.0.0.0

  network 1.0.0.1 0.0.0.0

  network 1.3.0.0 0.0.0.255

#

PEB配置

#

router id 2.2.2.2

#

ip vpn-instance vpncc

 route-distinguisher 2:1

 vpn-target 1:1 export-extcommunity

 vpn-target 1:1 import-extcommunity

#

vlan 1

#

mpls lsr-id 2.2.2.2

#

mpls

#

mpls ldp

#

interface Ethernet0/0

 port link-mode route

 description connects to peA

 ip address 1.2.0.2 255.255.255.0

 mpls

 mpls ldp

#

interface Ethernet0/1

 port link-mode route

 description connects to ceB

 ip binding vpn-instance vpncc

 ip address 2.4.0.2 255.255.255.0

#

interface LoopBack0

 description router id

 ip address 2.2.2.2 255.255.255.255

#

interface LoopBack1                       //用于OSPF多实例的router id

 description vpncc’s router id

 ip binding vpn-instance vpncc

 ip address 2.1.1.1 255.255.255.255

#

bgp 1

 undo synchronization

 peer 1.1.1.1 as-number 1

 peer 1.1.1.1 connect-interface LoopBack0

 #

 ipv4-family vpnv4

  peer 1.1.1.1 enable

 #

 ipv4-family vpn-instance vpncc

  import-route ospf 2

#

ospf 1

 area 0.0.0.0

  network 2.2.2.2 0.0.0.0

  network 1.2.0.0 0.0.0.255

#

ospf 2 router-id 2.1.1.1 vpn-instance vpncc

 import-route bgp

 area 0.0.0.0

  network 2.4.0.0 0.0.0.255

  network 2.1.1.1 0.0.0.0

#

CEB配置

#

router id 4.4.4.4

#

interface LoopBack0

 description router id

 ip address 4.4.4.4 255.255.255.255

#

interface Ethernet0/0

 port link-mode route

 description connnects to peB

 ip address 2.4.0.4 255.255.255.0

#

interface Ethernet0/1

 port link-mode route

 description connects to vpncc site2

 ip address 172.32.4.1 255.255.255.0

#

ospf 1

 area 0.0.0.0

  network 4.4.4.4 0.0.0.0

  network 2.4.0.0 0.0.0.255

  network 172.32.4.0 0.0.0.255

#

四、配置关键点：

1.      PE和CE之间运行OSPF多实例，注意引入BGP的vpn路由；

2.      PE的BGP注意引入OSPF多实例的路由。

五、实验分析

无