华为设备配置LDP跨域扩展

华为设备配置LDP跨域扩展

1. 配置IP地址

[LSR1-GigabitEthernet0/0/0]ip add 10.1.1.1 24

[LSR1-LoopBack0]ip add 1.1.1.1 32

[LSR2-GigabitEthernet0/0/0]ip add 20.1.1.2 24

[LSR2-LoopBack0]ip add 2.2.2.2 32

[LSR3-GigabitEthernet0/0/0]ip add 20.1.2.3 24

[LSR3-LoopBack0]ip add 3.3.3.3 32

[LSR4-GigabitEthernet0/0/0]ip add 10.1.1.4 24

[LSR4-GigabitEthernet0/0/1]ip add 20.1.1.4 24

[LSR4-GigabitEthernet0/0/2]ip add 20.1.2.4 24

[LSR4-LoopBack0]ip add 4.4.4.4 32

2. 配置IS-IS协议的基本功能

[LSR1]isis 1

[LSR1-isis-1]is-level level-2

[LSR1-isis-1]network-entity 10.0010.0100.0001.00

[LSR1-GigabitEthernet0/0/0]isis enable 1

[LSR1-LoopBack0]isis enable 1

[LSR2]isis 1

[LSR2-isis-1]is-level level-1

[LSR2-isis-1]network-entity 20.0010.0100.0002.00

[LSR2-GigabitEthernet0/0/0]isis enable 1

[LSR2-LoopBack0]isis enable 1

[LSR3]isis 1

[LSR3-isis-1]is-level level-1

[LSR3-isis-1]network-entity 20.0010.0200.0003.00

[LSR3-GigabitEthernet0/0/0]isis enable 1

[LSR3-LoopBack0]isis enable 1

[LSR4]isis 1

[LSR4-isis-1]network-entity 20.0010.0300.0004.00

[LSR4-GigabitEthernet0/0/0]isis enable 1

[LSR4-GigabitEthernet0/0/0]isis circuit-level level-2

[LSR4-GigabitEthernet0/0/1]isis enable 1

[LSR4-GigabitEthernet0/0/1]isis circuit-level level-1

[LSR4-GigabitEthernet0/0/2]isis enable 1

[LSR4-GigabitEthernet0/0/2]isis circuit-level level-1

[LSR4-LoopBack0]isis enable 1

3. 配置聚合路由的策略

[LSR4]isis 1

[LSR4-isis-1]summary 20.1.0.0 255.255.0.0 avoid-feedback

4. 配置各节点全局和接口的MPLS和MPLS LDP能力，使网络能够转发MPLS流量，并查看LSP建立情况

[LSR1]mpls lsr-id 1.1.1.1

[LSR1]mpls

[LSR1]mpls ldp

[LSR1-GigabitEthernet0/0/0]mpls

[LSR1-GigabitEthernet0/0/0]mpls ldp

[LSR2]mpls lsr-id 2.2.2.2

[LSR2]mpls

[LSR2]mpls ldp

[LSR2-GigabitEthernet0/0/0]mpls

[LSR2-GigabitEthernet0/0/0]mpls ldp

[LSR3]mpls lsr-id 3.3.3.3

[LSR3]mpls

[LSR3]mpls ldp

[LSR3-GigabitEthernet0/0/0]mpls

[LSR3-GigabitEthernet0/0/0]mpls ldp

[LSR4]mpls lsr-id 4.4.4.4

[LSR4]mpls

[LSR4]mpls ldp

[LSR4-GigabitEthernet0/0/0]mpls

[LSR4-GigabitEthernet0/0/0]mpls ldp

[LSR4-GigabitEthernet0/0/1]mpls

[LSR4-GigabitEthernet0/0/1]mpls ldp

[LSR4-GigabitEthernet0/0/2]mpls

[LSR4-GigabitEthernet0/0/2]mpls ldp

5. 配置LDP跨域扩展

[LSR1]mpls ldp

[LSR1-mpls-ldp]longest-match

6. 检查配置

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