目录

1 拓扑

2 配置步骤

2.1 配置接口IP 

2.2 配置OSPF

2.3 使能LDP

 2.3 在VPC上验证

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1 拓扑

2 配置步骤

2.1 配置接口IP 

  LER1

interface LoopBack 0
 ip address 1.1.1.9 32 
 quit

interface GigabitEthernet1/0
 ip address 10.1.1.1 255.255.255.0
 quit

interface GigabitEthernet2/0
 ip address 11.1.1.1 255.255.255.0
 quit

LSR

interface LoopBack 0
 ip address 2.2.2.9 32 
 quit

interface GigabitEthernet1/0
 ip address 10.1.1.2 255.255.255.0
 quit

interface GigabitEthernet2/0
 ip address 20.1.1.1 255.255.255.0
 quit

LER2

interface LoopBack 0
 ip address 3.3.3.9 32 
 quit

interface GigabitEthernet1/0
 ip address 20.1.1.2 255.255.255.0
 quit

interface GigabitEthernet2/0
 ip address 21.1.1.1 255.255.255.0
 quit

VPC1

ip 11.1.1.100/24 11.1.1.1

VPC2

ip 21.1.1.100/24 21.1.1.1

2.2 配置OSPF

LER1

ospf 1
 area 1
  network 1.1.1.9 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 11.1.1.0 0.0.0.255
  quit
 quit

LSR

ospf 1
 area 1
  network 2.2.2.9 0.0.0.0
  network 10.1.1.0 0.0.0.255
  network 20.1.1.0 0.0.0.255
  quit
 quit

LER2

ospf 1
 area 1
  network 3.3.3.9 0.0.0.0
  network 20.1.1.0 0.0.0.255
  network 21.1.1.0 0.0.0.255
  quit
 quit

查看OSPF 学到的路由

LER1

 LSR

LER2

2.3 使能LDP

LER1

mpls lsr-id 1.1.1.9
mpls ldp
 quit
 
interface GigabitEthernet1/0
 mpls enable
 mpls ldp enable
 quit

LSR

mpls lsr-id 2.2.2.9
mpls ldp
 quit
 
interface GigabitEthernet1/0
 mpls enable
 mpls ldp enable
 quit

interface GigabitEthernet2/0
 mpls enable 
 mpls ldp enable
 quit

LER2

mpls lsr-id 3.3.3.9
mpls ldp
 quit

interface GigabitEthernet1/0
 mpls enable
 mpls ldp enable
 quit

2.4 配置LDP LSP 触发条件

LER1 LSR LER2 配置相同

ip prefix-list ldp index 10 permit 11.1.1.0 24
ip prefix-list ldp index 20 permit 21.1.1.0 24

mpls ldp
 lsp-trigger prefix-list ldp
 quit

查看LDP LSP

LER1

LSR

LER2

 2.4 在VPC上验证