close

keyboard_arrow_left

Table of Contents Expand all

play_arrow 概述
- play_arrow 了解 MPLS
  - MPLS 概述
- play_arrow 支持的标准
  - 支持的 MPLS 标准
play_arrow MPLS 配置
- play_arrow 配置 MPLS
- play_arrow 配置 MPLS 隧道
  - IPv6-over-IPv4 隧道
  - 基于下一跳的动态隧道
play_arrow MPLS 流量
- play_arrow 管理 MPLS 流量
- play_arrow 保护 MPLS 流量
  - MPLS LSP 的节点和路径保护
  - 面向 MPLS LSP 的链路保护
- play_arrow 测量 MPLS 流量
  - 收集有关 MPLS 会话的统计信息
play_arrow MPLS LSP
- play_arrow 了解 MPLS LSP
- play_arrow 配置 MPLS LSP
play_arrow MPLS 信令协议
- play_arrow RSVP
  - 回复概述
  - RSVP 配置
- play_arrow LDP
play_arrow MPLS 流量工程
- play_arrow 配置 MPLS 信息流工程
play_arrow MPLS 传输配置文件
- play_arrow MPLS 的操作、管理和维护（OAM）
  - MPLS OAM 配置
- play_arrow MPLS 伪线
  - MPLS 伪线配置
  - 伪线头端接（PWHT）配置
- play_arrow MPLS 的服务等级（CoS）
  - MPLS 服务等级配置
- play_arrow 广义 MPLS （GMPLS）
  - GMPLS 配置
play_arrow MPLS VPN 和电路
- play_arrow MPLS 以太网（L2 电路）
  - 了解 MPLS 以太网（L2 电路）
  - 通过 MPLS 配置以太网（第 2 层电路）
- play_arrow CCC、TCC 和 2.5 层交换
  - CCC、TCC 和基于 MPLS 的以太网配置
play_arrow 面向软件定义网络（SDN）的 MPLS
- play_arrow 路径计算元素协议 (PCEP)
  - PCEP 配置
play_arrow MPLS 故障排除
- play_arrow MPLS 故障排除
  - MPLS 故障排除
play_arrow 配置语句和操作命令
- Junos CLI 参考概述

list Table of Contents

keyboard_arrow_right

机器翻译对您有帮助吗?

Go to English page

免责声明:

我们将使用第三方机器翻译软件翻译本页面。瞻博网络虽已做出相当大的努力提供高质量译文，但无法保证其准确性。如果对译文信息的准确性有任何疑问，请参阅英文版本. 可下载的 PDF 仅提供英文版.

示例：配置多实例 LDP

date_range 18-Jan-25

arrow_backward

arrow_forward

主 LDP 实例在层次结构级别进行 [edit protocols] 配置。

您可以使用层次结构级别的语句[edit routing-instances routing-instance-name protocols]来ldp配置 LDP 的特定实例。这将为特定 VRF 路由实例创建 LDP 实例。您必须指定所有必需的 VRF 语句，并将导出和导入策略应用于 LDP 实例，才能正确提交配置。

主实例中可用的大多数 LDP 层次结构级别也可用于 LDP 的特定实例。但是，该 no-forwarding 选项在基于 VRF 的 LDP 实例中不起作用。

图 1：多实例 LDP 拓扑图

图 1 显示了载波网络的示例。CE3 和 CE4 是驻留在 AS 65010 中的最终客户客户边缘路由器。AS 65020 中的 VPN 提供商有三种类型的路由器：PE3 和 PE4 是连接到最终客户的 PE 路由器，CE1 和 CE2 充当中间运营商客户边缘路由器，P2 和 P3 是内部传输路由器。AS 65030 中的 PE1 和 PE2 是服务于中间 VPN 提供商的 PE 路由器，P0 和 P1 是顶级运营商的中转路由器。

若要使此配置正常工作，必须完成三个主要任务：

在 VPN 客户客户边缘和 VPN 提供商 PE 之间配置外部 BGP。
使用两对 PE 路由器之间的 VPN 系列配置内部 BGP（PE1 和 PE2 之间的一个 IBGP 连接，路由器 PE3 和路由器 PE4 之间的第二个 IBGP 连接）。
在所有剩余链路上建立 LDP 和内部网关协议（IGP）连接。此示例使用 OSPF 作为 IGP，但您可以使用自己选择的 IGP。

中表 1总结了支持此载波至载波多实例 LDP 示例的信息。

表 1：多实例 LDP 示例 — 路由协议摘要
连接	协议
CE3 - PE3	EBGP 家族 inet
PE3 - P2 - CE1	OSPF 和 LDP
CE1 - PE1	OSPF 和 LDP
PE1 - P0 - P1 - PE2	OSPF 和 LDP
PE1 - PE2	IBGP 系列 inet-vpn
PE2 - CE2	OSPF 和 LDP
CE2 - P3 - PE4	OSPF 和 LDP
PE4 - CE4	EBGP 家族 inet
PE3 - PE4	IBGP 系列 inet-vpn

您的配置任务从路由器 CE3 开始，逐个路由器通过 VPN 提供商网络的第一部分，通过 AS 65020 的第二个 VPN 提供商集群进入运营商 AS，最后到第二个 VPN 客户路由器 CE4 结束。

由于路由器 CE3 是第一个客户路由器，因此请在路由器 CE3 和连接的 VPN 提供商路由器 PE3 之间配置 EBGP。您还必须使用路由策略将您的环路地址播发到 BGP 中，以允许路由器 CE4 的 IP 可访问性。

路由器 CE3

content_copy zoom_out_map
user@CE3#
set interfaces ge-0/0/0 description to-PE3
set interfaces ge-0/0/0 unit 0 family inet address 172.16.33.1/30
set interfaces lo0 unit 0 family inet address 192.168.10.3/32
set policy-options policy-statement loopback term 1 from route-filter 192.168.10.3/32 exact
set policy-options policy-statement loopback term 1 then accept
set policy-options policy-statement loopback term 3 then reject
set protocols bgp group to-PE3 export loopback
set protocols bgp group to-PE3 peer-as 65020
set protocols bgp group to-PE3 neighbor 172.16.33.2
set routing-options router-id 192.168.10.3
set routing-options autonomous-system 65010

在路由器 PE3 上，配置任务更为复杂。您需要在 VRF 实例中完成与路由器 CE3 的 EBGP 连接，在指向 VPN 提供商路由器 CE1 的接口上启用 MPLS 和 LDP，并配置 IBGP 的主实例以访问位于 AS 65020 远端边缘的路由器 PE4。

最后，设置出站 VRF 策略，将所有 BGP 流量和直接连接的接口放入 BGP 社区，并设置入站 VRF 策略，接受来自路由器 PE4 的类似 BGP 社区流量。

路由器 PE3

content_copy zoom_out_map
user@PE3#
set interfaces ge-0/0/0 description to-CE3
set interfaces ge-0/0/0 unit 0 family inet address 172.16.33.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-P2
set interfaces ge-0/0/1 unit 0 family inet address 10.1.32.1/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.20.3/32
set policy-options policy-statement vpn-customer-export term 1 from protocol bgp
set policy-options policy-statement vpn-customer-export term 1 from protocol direct
set policy-options policy-statement vpn-customer-export term 1 then community add vpn-customer-comm
set policy-options policy-statement vpn-customer-export term 1 then accept
set policy-options policy-statement vpn-customer-export term 2 then reject
set policy-options policy-statement vpn-customer-import term 1 from protocol bgp
set policy-options policy-statement vpn-customer-import term 1 from community vpn-customer-comm
set policy-options policy-statement vpn-customer-import term 1 then accept
set policy-options policy-statement vpn-customer-import term 2 then reject
set policy-options community vpn-customer-comm members target:65020:1
set routing-instances vpn-customer instance-type vrf
set routing-instances vpn-customer protocols bgp group customer peer-as 65010
set routing-instances vpn-customer protocols bgp group customer as-override
set routing-instances vpn-customer protocols bgp group customer neighbor 172.16.33.1
set routing-instances vpn-customer interface ge-0/0/0.0
set routing-instances vpn-customer route-distinguisher 192.168.20.3:1
set routing-instances vpn-customer vrf-import vpn-customer-import
set routing-instances vpn-customer vrf-export vpn-customer-export
set protocols bgp group to-PE4 type internal
set protocols bgp group to-PE4 local-address 192.168.20.3
set protocols bgp group to-PE4 neighbor 192.168.20.14 family inet-vpn unicast
set protocols ldp interface ge-0/0/1.0
set protocols mpls interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.20.3
set routing-options autonomous-system 65020

在路由器 P2 上，启用 LDP 和用于传输标签的 IGP（在本例中为 OSPF）。您将在 VPN 提供商网络和核心运营商网络中的所有传输核心路由器上重复这些任务。

路由器 P2

content_copy zoom_out_map
user@P2#
set interfaces ge-0/0/0 description to-PE3
set interfaces ge-0/0/0 unit 0 family inet address 10.1.32.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-CE1
set interfaces ge-0/0/1 unit 0 family inet address 10.1.21.1/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.20.2/32
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.20.2
set routing-options autonomous-system 65020

对于路由器 CE1，请采用与配置路由器 P2 相同的方式配置 LDP 和 OSPF。

路由器 CE1

content_copy zoom_out_map
user@CE1#
set interfaces ge-0/0/0 description to-P2
set interfaces ge-0/0/0 unit 0 family inet address 10.1.21.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-PE1
set interfaces ge-0/0/1 unit 0 family inet address 172.16.11.1/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.20.1/32
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.20.1
set routing-options autonomous-system 65020

在核心运营商路由器 PE1 上，为 OSPF、LDP、MPLS 和 IBGP 配置主实例（带 family inet-vpn 选项），以将路由器连接到邻居路由器 PE2。接下来，通过建立辅助实例来实现多实例 LDP。在这种情况下，为路由器 PE1 启用 LDP 和 OSPF 以与路由器 CE1 通信。辅助实例中不需要 MPLS。

最后，设置一个出站 VRF 策略，用于将来自路由器 CE1 的所有 LDP 流量放入 BGP 社区，设置一个将此社区流量发送到路由器 PE2 的导出策略，以及一个接受来自路由器 PE2 的类似 BGP 社区流量的入站 VRF 策略。此步骤将 VPN 提供商的 LDP 流量通过隧道进入运营商的 BGP 会话。

路由器 PE1

content_copy zoom_out_map
user@PE1#
set interfaces ge-0/0/0 description to-CE1
set interfaces ge-0/0/0 unit 0 family inet address 172.16.11.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-P0
set interfaces ge-0/0/1 unit 0 family inet address 10.1.10.1/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.30.1/32
set policy-options policy-statement bgp-routes-export term 1 from protocol bgp
set policy-options policy-statement bgp-routes-export term 1 from community vpn-provider-comm
set policy-options policy-statement bgp-routes-export term 1 then accept
set policy-options policy-statement bgp-routes-export term 2 then reject
set policy-options policy-statement vpn-provider-export term 1 from protocol ldp
set policy-options policy-statement vpn-provider-export term 1 from protocol ospf
set policy-options policy-statement vpn-provider-export term 1 then community add vpn-provider-comm
set policy-options policy-statement vpn-provider-export term 1 then accept
set policy-options policy-statement vpn-provider-export term 2 then reject
set policy-options policy-statement vpn-provider-import term 1 from protocol bgp
set policy-options policy-statement vpn-provider-import term 1 from community vpn-provider-comm
set policy-options policy-statement vpn-provider-import term 1 then accept
set policy-options policy-statement vpn-provider-import term 2 then reject
set policy-options community vpn-provider-comm members target:65030:1
set routing-instances vpn-provider instance-type vrf
set routing-instances vpn-provider protocols ldp egress-policy bgp-routes-export
set routing-instances vpn-provider protocols ldp interface ge-0/0/0.0
set routing-instances vpn-provider protocols mpls traffic-engineering bgp-igp
set routing-instances vpn-provider protocols mpls interface ge-0/0/0.0
set routing-instances vpn-provider protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set routing-instances vpn-provider protocols ospf export bgp-routes-export
set routing-instances vpn-provider interface ge-0/0/0.0
set routing-instances vpn-provider route-distinguisher 192.168.30.1:1
set routing-instances vpn-provider vrf-import vpn-provider-import
set routing-instances vpn-provider vrf-export vpn-provider-export
set protocols bgp group pe type internal
set protocols bgp group pe local-address 192.168.30.1
set protocols bgp group pe family inet-vpn unicast
set protocols bgp group pe neighbor 192.168.30.2
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set routing-options router-id 192.168.30.1
set routing-options autonomous-system 65030

在路由器 P0 上，启用 LDP 和 OSPF，启用方式与您在路由器 P2 上配置这些协议的方式相同。您将在路由器 P1 和路由器 P3 上重复这些任务。

路由器 P0

content_copy zoom_out_map
user@P0#
set interfaces ge-0/0/0 description to-PE1
set interfaces ge-0/0/0 unit 0 family inet address 10.1.10.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-P1
set interfaces ge-0/0/1 unit 0 family inet address 10.1.1.1/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.30.10/32
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.30.10
set routing-options autonomous-system 65030

在路由器 P1 上，启用 LDP 和用于传输标签的 IGP（在本例中为 OSPF）。

路由器 P1

content_copy zoom_out_map
user@P1#
set interfaces ge-0/0/0 description to-P0
set interfaces ge-0/0/0 unit 0 family inet address 10.1.1.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-PE2
set interfaces ge-0/0/1 unit 0 family inet address 10.1.12.1/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.30.11/32
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.30.11
set routing-options autonomous-system 65030

核心运营商路由器 PE2 是路由器 PE1 的镜像。首先，为 OSPF、LDP、MPLS 和 IBGP 配置主实例（使用 family inet-vpn 选项），以将路由器 PE2 连接到邻居路由器 PE1。接下来，通过建立辅助实例来实现多实例 LDP。在这种情况下，为路由器 PE2 启用 LDP 和 OSPF 以与路由器 CE2 通信。辅助实例中不需要 MPLS。

最后，设置一个出站 VRF 策略，用于将来自路由器 CE2 的所有 LDP 流量放入 BGP 社区，设置一个将此社区流量发送到路由器 PE1 的导出策略，以及一个接受来自路由器 PE1 的类似 BGP 社区流量的入站 VRF 策略。此步骤将 VPN 提供商的 LDP 流量通过隧道进入运营商的 BGP 会话。

路由器 PE2

content_copy zoom_out_map
user@PE2#
set interfaces ge-0/0/0 description to-P1
set interfaces ge-0/0/0 unit 0 family inet address 10.1.12.2/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-CE2
set interfaces ge-0/0/1 unit 0 family inet address 172.16.22.2/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.30.2/32
set policy-options policy-statement bgp-routes-export term 1 from protocol bgp
set policy-options policy-statement bgp-routes-export term 1 from community vpn-provider-comm
set policy-options policy-statement bgp-routes-export term 1 then accept
set policy-options policy-statement bgp-routes-export term 2 then reject
set policy-options policy-statement vpn-provider-export term 1 from protocol ldp
set policy-options policy-statement vpn-provider-export term 1 from protocol ospf
set policy-options policy-statement vpn-provider-export term 1 then community add vpn-provider-comm
set policy-options policy-statement vpn-provider-export term 1 then accept
set policy-options policy-statement vpn-provider-export term 2 then reject
set policy-options policy-statement vpn-provider-import term 1 from protocol bgp
set policy-options policy-statement vpn-provider-import term 1 from community vpn-provider-comm
set policy-options policy-statement vpn-provider-import term 1 then accept
set policy-options policy-statement vpn-provider-import term 2 then reject
set policy-options community vpn-provider-comm members target:65030:1
set routing-instances vpn-provider instance-type vrf
set routing-instances vpn-provider protocols ldp egress-policy bgp-routes-export
set routing-instances vpn-provider protocols ldp interface ge-0/0/1.0
set routing-instances vpn-provider protocols mpls traffic-engineering bgp-igp
set routing-instances vpn-provider protocols mpls interface ge-0/0/1.0
set routing-instances vpn-provider protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set routing-instances vpn-provider protocols ospf export bgp-routes-export
set routing-instances vpn-provider interface ge-0/0/1.0
set routing-instances vpn-provider route-distinguisher 192.168.30.2:1
set routing-instances vpn-provider vrf-import vpn-provider-import
set routing-instances vpn-provider vrf-export vpn-provider-export
set protocols bgp group pe type internal
set protocols bgp group pe local-address 192.168.30.2
set protocols bgp group pe family inet-vpn unicast
set protocols bgp group pe neighbor 192.168.30.1
set protocols ldp interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface lo0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set routing-options router-id 192.168.30.2
set routing-options autonomous-system 65030

对于路由器 CE2，请像在路由器 CE1 和中转 P 路由器上一样配置 LDP 和 OSPF。

路由器 CE2

content_copy zoom_out_map
user@CE2#
set interfaces ge-0/0/0 description to-PE2
set interfaces ge-0/0/0 unit 0 family inet address 172.16.22.1/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-P3
set interfaces ge-0/0/1 unit 0 family inet address 10.1.23.2/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.20.12/32
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.20.12
set routing-options autonomous-system 65020

由于路由器 P3 是另一个核心提供商路由器，因此请在所有中转接口上启用 LDP 和 OSPF。

路由器 P3

content_copy zoom_out_map
user@P3#
set interfaces ge-0/0/0 description to-CE2
set interfaces ge-0/0/0 unit 0 family inet address 10.1.23.1/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-PE4
set interfaces ge-0/0/1 unit 0 family inet address 10.1.43.2/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.20.13/32
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/1.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.20.13
set routing-options autonomous-system 65020

在路由器 PE4 上，完成在路由器 PE3 上启动的 IBGP 连接，以连接 AS 65020 中的边缘路由器。此外，在指向 VPN 提供商路由器 CE2 的接口上启用 LDP 和 MPLS，并使用 VRF 实例与路由器 CE4 建立 EBGP 连接。

最后，设置一个出站 VRF 策略，将所有 BGP 流量和直接连接的接口放入 BGP 社区，以及一个入站 VRF 策略，接受来自路由器 PE3 的类似 BGP 社区流量。

路由器 PE4

content_copy zoom_out_map
user@PE4#
set interfaces ge-0/0/0 description to-P3
set interfaces ge-0/0/0 unit 0 family inet address 10.1.43.1/30
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 description to-CE4
set interfaces ge-0/0/1 unit 0 family inet address 172.16.44.2/30
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 192.168.20.14/32
set policy-options policy-statement vpn-customer-export term 1 from protocol bgp
set policy-options policy-statement vpn-customer-export term 1 from protocol direct
set policy-options policy-statement vpn-customer-export term 1 then community add vpn-customer-comm
set policy-options policy-statement vpn-customer-export term 1 then accept
set policy-options policy-statement vpn-customer-export term 2 then reject
set policy-options policy-statement vpn-customer-import term 1 from protocol bgp
set policy-options policy-statement vpn-customer-import term 1 from community vpn-customer-comm
set policy-options policy-statement vpn-customer-import term 1 then accept
set policy-options policy-statement vpn-customer-import term 2 then reject
set policy-options community vpn-customer-comm members target:65020:1
set routing-instances vpn-customer instance-type vrf
set routing-instances vpn-customer protocols bgp group customer peer-as 65010
set routing-instances vpn-customer protocols bgp group customer as-override
set routing-instances vpn-customer protocols bgp group customer neighbor 172.16.44.1
set routing-instances vpn-customer interface ge-0/0/1.0
set routing-instances vpn-customer route-distinguisher 192.168.20.14:1
set routing-instances vpn-customer vrf-import vpn-customer-import
set routing-instances vpn-customer vrf-export vpn-customer-export
set protocols bgp group int type internal
set protocols bgp group int local-address 192.168.20.14
set protocols bgp group int neighbor 192.168.20.3 family inet-vpn unicast
set protocols ldp interface ge-0/0/0.0
set protocols mpls interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface ge-0/0/0.0
set protocols ospf area 0.0.0.0 interface lo0.0
set routing-options router-id 192.168.20.14
set routing-options autonomous-system 65020

路由器 CE4 是目标 VPN 客户路由器。在路由器 CE4 和连接的 VPN 提供商路由器 PE4 之间配置 EBGP 以完成配置。请记住使用路由策略将环路地址播发到 BGP 中，以允许路由器 CE3 的 IP 可访问性。

路由器 CE4

content_copy zoom_out_map
user@CE4#
set interfaces ge-0/0/0 description to-PE4
set interfaces ge-0/0/0 unit 0 family inet address 172.16.44.1/30
set interfaces lo0 unit 0 family inet address 192.168.10.4/32
set policy-options policy-statement loopback term 1 from route-filter 192.168.10.4/32 exact
set policy-options policy-statement loopback term 1 then accept
set policy-options policy-statement loopback term 3 then reject
set protocols bgp group provider export loopback
set protocols bgp group provider peer-as 65020
set protocols bgp group provider neighbor 172.16.44.2
set routing-options router-id 192.168.10.4
set routing-options autonomous-system 65010

验证您的工作

要验证多实例 LDP 配置是否正确运行，请使用以下命令：

show ldp database
show ldp interface
show ldp neighbor
show ldp path
show ldp route
show ldp session
show ldp statistics

这些命令的显示输出与以前的 Junos OS 版本中相同，但有一个区别。实例名称现在可以用作参数。

如果在这些命令中包含实例名称，则会显示指定 LDP 实例的信息。例如，该命令 show ldp neighbor instance crockett 显示名为的 crockettVRF 实例的所有 LDP 邻居。相反，如果没有实例名称， show ldp neighbor 则会显示与主实例关联的 LDP 邻居。

以下部分显示了与配置示例一起使用的这些命令的输出：

路由器 CE3 状态
路由器 PE3 状态
路由器 CE1 状态
路由器 PE1 状态
路由器 PE2 状态
路由器 CE2 状态
路由器 PE4 状态
路由器 CE4 状态

路由器 CE3 状态

content_copy zoom_out_map
user@CE3> show bgp summary
Threading mode: BGP I/O
Default eBGP mode: advertise - accept, receive - accept
Groups: 1 Peers: 1 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
inet.0               
                       2          2          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
172.16.33.2           65020      19653      19724       0       0  6d 3:53:37 Establ
  inet.0: 2/2/2/0

user@CE3>  show route protocol bgp
inet.0: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

172.16.44.0/30     *[BGP/170] 6d 00:53:43, localpref 100
                      AS path: 65020 I, validation-state: unverified
                    >  to 172.16.33.2 via ge-0/0/0.0
192.168.10.4/32    *[BGP/170] 6d 00:53:42, localpref 100
                      AS path: 65020 65020 I, validation-state: unverified
                    >  to 172.16.33.2 via ge-0/0/0.0

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

user@CE3>  ping 192.168.10.4 source 192.168.10.3 count 2
PING 192.168.10.4 (192.168.10.4): 56 data bytes
64 bytes from 192.168.10.4: icmp_seq=0 ttl=54 time=24.744 ms
64 bytes from 192.168.10.4: icmp_seq=1 ttl=54 time=16.336 ms

--- 192.168.10.4 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 16.336/20.540/24.744/4.204 ms

路由器 PE3 状态

content_copy zoom_out_map
user@PE3> show bgp summary           
Threading mode: BGP I/O
Default eBGP mode: advertise - accept, receive - accept
Groups: 2 Peers: 2 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
bgp.l3vpn.0          
                       2          2          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
172.16.33.1           65010      19783      19708       0       0  6d 4:19:07 Establ
  vpn-customer.inet.0: 1/1/1/0
192.168.20.14         65020      19299      19297       0       1  6d 1:17:05 Establ
  bgp.l3vpn.0: 2/2/2/0
  vpn-customer.inet.0: 2/2/2/0

user@PE3>  show route protocol ldp
inet.0: 20 destinations, 20 routes (20 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

224.0.0.2/32       *[LDP/9] 6d 04:55:21, metric 1
                       MultiRecv

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

10.1.23.0/30       *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299968
10.1.43.0/30       *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 300000
192.168.20.1/32    *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299952
192.168.20.2/32    *[LDP/9] 6d 04:22:00, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0
192.168.20.12/32   *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299984
192.168.20.13/32   *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 300016
192.168.20.14/32   *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 300032

vpn-customer.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)

mpls.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

299856             *[LDP/9] 6d 04:22:00, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Pop      
299856(S=0)        *[LDP/9] 6d 04:22:00, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Pop      
299984             *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Swap 299952
300000             *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Swap 299968
300016             *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Swap 299984
300032             *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Swap 300000
300048             *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Swap 300016
300064             *[LDP/9] 6d 01:18:46, metric 1
                    >  to 10.1.32.2 via ge-0/0/1.0, Swap 300032

bgp.l3vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

vpn-customer.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

user@PE3>  show route protocol bgp
inet.0: 20 destinations, 20 routes (20 active, 0 holddown, 0 hidden)

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)

vpn-customer.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

172.16.44.0/30     *[BGP/170] 6d 01:19:31, localpref 100, from 192.168.20.14
                      AS path: I, validation-state: unverified
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299968, Push 300032(top)
192.168.10.3/32    *[BGP/170] 6d 04:21:33, localpref 100
                      AS path: 65010 I, validation-state: unverified
                    >  to 172.16.33.1 via ge-0/0/0.0
192.168.10.4/32    *[BGP/170] 6d 01:19:30, localpref 100, from 192.168.20.14
                      AS path: 65010 I, validation-state: unverified
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299968, Push 300032(top)

mpls.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)

bgp.l3vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

192.168.20.14:1:172.16.44.0/30                
                   *[BGP/170] 6d 01:19:31, localpref 100, from 192.168.20.14
                      AS path: I, validation-state: unverified
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299968, Push 300032(top)
192.168.20.14:1:192.168.10.4/32                
                   *[BGP/170] 6d 01:19:30, localpref 100, from 192.168.20.14
                      AS path: 65010 I, validation-state: unverified
                    >  to 10.1.32.2 via ge-0/0/1.0, Push 299968, Push 300032(top)

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

vpn-customer.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

路由器 CE1 状态

content_copy zoom_out_map
user@CE1> show ldp neighbor
Address                             Interface       Label space ID     Hold time
172.16.11.2                         ge-0/0/1.0      172.16.11.2:0        12
10.1.21.1                           ge-0/0/0.0      192.168.20.2:0       12

user@CE1>  show route
inet.0: 15 destinations, 15 routes (15 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

10.1.21.0/30       *[Direct/0] 6d 01:32:24
                    >  via ge-0/0/0.0
10.1.21.2/32       *[Local/0] 6d 01:32:24
                       Local via ge-0/0/0.0
10.1.23.0/30       *[OSPF/10] 6d 03:34:28, metric 3
                    >  to 172.16.11.2 via ge-0/0/1.0
10.1.32.0/30       *[OSPF/10] 6d 01:31:41, metric 2
                    >  to 10.1.21.1 via ge-0/0/0.0
10.1.43.0/30       *[OSPF/10] 6d 03:28:49, metric 4
                    >  to 172.16.11.2 via ge-0/0/1.0
172.16.11.0/30     *[Direct/0] 6d 04:57:56
                    >  via ge-0/0/1.0
172.16.11.1/32     *[Local/0] 6d 04:57:56
                       Local via ge-0/0/1.0
192.168.20.1/32    *[Direct/0] 6d 04:40:45
                    >  via lo0.0
192.168.20.2/32    *[OSPF/10] 6d 01:31:41, metric 1
                    >  to 10.1.21.1 via ge-0/0/0.0
192.168.20.3/32    *[OSPF/10] 6d 01:31:41, metric 2
                    >  to 10.1.21.1 via ge-0/0/0.0
192.168.20.12/32   *[OSPF/150] 6d 03:34:27, metric 1, tag 3489725958
                    >  to 172.16.11.2 via ge-0/0/1.0
192.168.20.13/32   *[OSPF/150] 6d 03:28:46, metric 1, tag 3489725958
                    >  to 172.16.11.2 via ge-0/0/1.0
192.168.20.14/32   *[OSPF/150] 6d 02:51:40, metric 1, tag 3489725958
                    >  to 172.16.11.2 via ge-0/0/1.0
224.0.0.2/32       *[LDP/9] 6d 04:57:56, metric 1
                       MultiRecv
224.0.0.5/32       *[OSPF/10] 6d 04:57:56, metric 1
                       MultiRecv

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

10.1.23.0/30       *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Push 300032
10.1.43.0/30       *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Push 300064
192.168.20.2/32    *[LDP/9] 6d 01:31:39, metric 1
                    >  to 10.1.21.1 via ge-0/0/0.0
192.168.20.3/32    *[LDP/9] 6d 01:31:39, metric 1
                    >  to 10.1.21.1 via ge-0/0/0.0, Push 299856
192.168.20.12/32   *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Push 300048
192.168.20.13/32   *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Push 300080
192.168.20.14/32   *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Push 300096

mpls.0: 8 destinations, 8 routes (8 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

299888             *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Swap 300032
299904             *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Swap 300048
299920             *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Swap 300064
299936             *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Swap 300080
299952             *[LDP/9] 6d 01:32:49, metric 1
                    >  to 172.16.11.2 via ge-0/0/1.0, Swap 300096
299968             *[LDP/9] 6d 01:31:39, metric 1
                    >  to 10.1.21.1 via ge-0/0/0.0, Pop      
299968(S=0)        *[LDP/9] 6d 01:31:39, metric 1
                    >  to 10.1.21.1 via ge-0/0/0.0, Pop      
299984             *[LDP/9] 6d 01:31:39, metric 1
                    >  to 10.1.21.1 via ge-0/0/0.0, Swap 299856
                                        
inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

ff02::2/128        *[INET6/0] 1w0d 02:45:00
                       MultiRecv

路由器 PE1 状态

content_copy zoom_out_map
user@PE1> show ldp neighbor instance vpn-provider           
Address                             Interface       Label space ID     Hold time
172.16.11.1                         ge-0/0/0.0      192.168.20.1:0       14

user@PE1>  show ldp database instance vpn-provider
Input label database, 172.16.11.2:0--192.168.20.1:0
Labels received: 8
  Label     Prefix
 299888      10.1.23.0/30
 299920      10.1.43.0/30
      3      192.168.20.1/32
 299968      192.168.20.2/32
 299984      192.168.20.3/32
 299904      192.168.20.12/32
 299936      192.168.20.13/32
 299952      192.168.20.14/32

Output label database, 172.16.11.2:0--192.168.20.1:0
Labels advertised: 8
  Label     Prefix
 300032      10.1.23.0/30
 300064      10.1.43.0/30
 299824      192.168.20.1/32
 300112      192.168.20.2/32
 300128      192.168.20.3/32
 300048      192.168.20.12/32
 300080      192.168.20.13/32
 300096      192.168.20.14/32

user@PE1>  show ldp interface instance vpn-provider
Interface          Address                          Label space ID   Nbr   Next
                                                                    count  hello
ge-0/0/0.0         172.16.11.2                      172.16.11.2:0     1      2

user@PE1>  show ldp path instance vpn-provider
Output Session (label)          Input Session (label)
192.168.20.1:0(299824)(                             ) 192.168.20.1:0(3)( )
  Attached route:  192.168.20.1/32, Ingress route
192.168.20.1:0(300032)          ( )
  Attached route:  10.1.23.0/30
192.168.20.1:0(300048)          ( )
  Attached route:  192.168.20.12/32
192.168.20.1:0(300064)          ( )
  Attached route:  10.1.43.0/30
192.168.20.1:0(300080)          ( )
  Attached route:  192.168.20.13/32
192.168.20.1:0(300096)          ( )
  Attached route:  192.168.20.14/32
192.168.20.1:0(300112)          192.168.20.1:0(299968)
  Attached route:  192.168.20.2/32, Ingress route
192.168.20.1:0(300128)          192.168.20.1:0(299984)
  Attached route:  192.168.20.3/32, Ingress route

user@PE1>  show ldp route instance vpn-provider
Destination                            Next-hop intf/lsp/table  Next-hop address
 10.1.21.0/30                          ge-0/0/0.0               172.16.11.1
 10.1.23.0/30                                                   192.168.30.2
 10.1.32.0/30                          ge-0/0/0.0               172.16.11.1
 10.1.43.0/30                                                   192.168.30.2
 172.16.11.0/30                        ge-0/0/0.0
 172.16.11.2/32                       
 192.168.20.1/32                       ge-0/0/0.0               172.16.11.1
 192.168.20.2/32                       ge-0/0/0.0               172.16.11.1
 192.168.20.3/32                       ge-0/0/0.0               172.16.11.1
 192.168.20.12/32                                               192.168.30.2
 192.168.20.13/32                                               192.168.30.2
 192.168.20.14/32                                               192.168.30.2
 224.0.0.5/32

user@PE1>  show ldp session instance vpn-provider
  Address                           State       Connection  Hold time  Adv. Mode
192.168.20.1                        Operational Open          21         DU

user@PE1>  show bgp summary
Threading mode: BGP I/O
Default eBGP mode: advertise - accept, receive - accept
Groups: 1 Peers: 1 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
bgp.l3vpn.0          
                       5          5          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
192.168.30.2          65030      19795      19797       0       0  6d 4:21:31 Establ
  bgp.l3vpn.0: 5/5/5/0
  vpn-provider.inet.0: 5/5/5/0

路由器 PE2 状态

content_copy zoom_out_map
user@PE2> show ldp neighbor instance vpn-provider
Address                             Interface       Label space ID     Hold time
172.16.22.1                         ge-0/0/1.0      192.168.20.12:0      12

user@PE2>  show ldp database instance vpn-provider
Input label database, 172.16.22.2:0--192.168.20.12:0
Labels received: 8
  Label     Prefix
 299888      10.1.21.0/30
 299904      10.1.32.0/30
 299808      192.168.20.1/32
 299920      192.168.20.2/32
 299936      192.168.20.3/32
      3      192.168.20.12/32
 299856      192.168.20.13/32
 299872      192.168.20.14/32

Output label database, 172.16.22.2:0--192.168.20.12:0
Labels advertised: 8
  Label     Prefix
 300000      10.1.21.0/30
 300032      10.1.32.0/30
 299888      192.168.20.1/32
 300016      192.168.20.2/32
 300048      192.168.20.3/32
 299920      192.168.20.12/32
 299952      192.168.20.13/32
 299984      192.168.20.14/32

user@PE2>  show ldp interface instance vpn-provider
Interface          Address                          Label space ID   Nbr   Next
                                                                    count  hello
ge-0/0/1.0         172.16.22.2                      172.16.22.2:0     1      4

user@PE2>  show ldp path instance vpn-provider
Output Session (label)          Input Session (label)
192.168.20.12:0(299888)(                             )( )
                                ( )
  Attached route:  192.168.20.1/32
192.168.20.12:0(299920)         192.168.20.12:0(3)
  Attached route:  192.168.20.12/32, Ingress route
192.168.20.12:0(299952)         192.168.20.12:0(299856)
  Attached route:  192.168.20.13/32, Ingress route
192.168.20.12:0(299984)         192.168.20.12:0(299872)
  Attached route:  192.168.20.14/32, Ingress route
192.168.20.12:0(300000)         ( )
  Attached route:  10.1.21.0/30
192.168.20.12:0(300016)         ( )
  Attached route:  192.168.20.2/32
192.168.20.12:0(300032)         ( )
  Attached route:  10.1.32.0/30
192.168.20.12:0(300048)         ( )
  Attached route:  192.168.20.3/32

user@PE2>  show ldp route instance vpn-provider
Destination                            Next-hop intf/lsp/table  Next-hop address
 10.1.21.0/30                                                   192.168.30.1
 10.1.23.0/30                          ge-0/0/1.0               172.16.22.1
 10.1.32.0/30                                                   192.168.30.1
 10.1.43.0/30                          ge-0/0/1.0               172.16.22.1
 172.16.22.0/30                        ge-0/0/1.0
 172.16.22.2/32                       
 192.168.20.1/32                                                192.168.30.1
 192.168.20.2/32                                                192.168.30.1
 192.168.20.3/32                                                192.168.30.1
 192.168.20.12/32                      ge-0/0/1.0               172.16.22.1
 192.168.20.13/32                      ge-0/0/1.0               172.16.22.1
 192.168.20.14/32                      ge-0/0/1.0               172.16.22.1
 224.0.0.5/32

user@PE2>  show ldp session instance vpn-provider
  Address                           State       Connection  Hold time  Adv. Mode
192.168.20.12                       Operational Open          21         DU

user@PE2>  show bgp summary
Threading mode: BGP I/O
Default eBGP mode: advertise - accept, receive - accept
Groups: 1 Peers: 1 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
bgp.l3vpn.0          
                       5          5          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
192.168.30.1          65030      35560      35557       0       0 1w4d 2:35:55 Establ
  bgp.l3vpn.0: 5/5/5/0
  vpn-provider.inet.0: 5/5/5/0

路由器 CE2 状态

content_copy zoom_out_map
user@CE2> show ldp neighbor
Address                             Interface       Label space ID     Hold time
172.16.22.2                         ge-0/0/0.0      172.16.22.2:0        12
10.1.23.1                           ge-0/0/1.0      192.168.20.13:0      11

user@CE2>  show route
inet.0: 16 destinations, 16 routes (16 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

10.1.21.0/30       *[OSPF/10] 1w4d 00:42:23, metric 3
                    >  to 172.16.22.2 via ge-0/0/0.0
10.1.23.0/30       *[Direct/0] 1w4d 02:44:36
                    >  via ge-0/0/1.0
10.1.23.2/32       *[Local/0] 1w4d 02:44:36
                       Local via ge-0/0/1.0
10.1.32.0/30       *[OSPF/10] 1w4d 00:41:40, metric 4
                    >  to 172.16.22.2 via ge-0/0/0.0
10.1.43.0/30       *[OSPF/10] 1w4d 02:38:50, metric 2
                    >  to 10.1.23.1 via ge-0/0/1.0
172.16.22.0/30     *[Direct/0] 1w4d 02:44:36
                    >  via ge-0/0/0.0
172.16.22.1/32     *[Local/0] 1w4d 02:44:36
                       Local via ge-0/0/0.0
192.168.0.0/16     *[Static/5] 1w5d 01:55:12
                    >  to 10.93.31.254 via fxp0.0
192.168.20.1/32    *[OSPF/150] 1w4d 02:44:26, metric 1, tag 3489725958
                    >  to 172.16.22.2 via ge-0/0/0.0
192.168.20.2/32    *[OSPF/150] 1w4d 00:41:37, metric 1, tag 3489725958
                    >  to 172.16.22.2 via ge-0/0/0.0
192.168.20.3/32    *[OSPF/150] 1w4d 00:41:37, metric 1, tag 3489725958
                    >  to 172.16.22.2 via ge-0/0/0.0
192.168.20.12/32   *[Direct/0] 1w4d 02:44:36
                    >  via lo0.0
192.168.20.13/32   *[OSPF/10] 1w4d 02:38:50, metric 1
                    >  to 10.1.23.1 via ge-0/0/1.0
192.168.20.14/32   *[OSPF/10] 1w4d 02:01:44, metric 2
                    >  to 10.1.23.1 via ge-0/0/1.0
224.0.0.2/32       *[LDP/9] 1w4d 02:44:36, metric 1
                       MultiRecv
224.0.0.5/32       *[OSPF/10] 1w4d 02:44:36, metric 1
                       MultiRecv

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

10.1.21.0/30       *[LDP/9] 1w4d 00:42:23, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Push 300000
10.1.32.0/30       *[LDP/9] 1w4d 00:41:40, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Push 300032
192.168.20.1/32    *[LDP/9] 1w4d 02:44:26, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Push 299888
192.168.20.2/32    *[LDP/9] 1w4d 00:41:40, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Push 300016
192.168.20.3/32    *[LDP/9] 1w4d 00:41:40, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Push 300048
192.168.20.13/32   *[LDP/9] 1w4d 02:38:47, metric 1
                    >  to 10.1.23.1 via ge-0/0/1.0
192.168.20.14/32   *[LDP/9] 1w4d 02:01:41, metric 1
                    >  to 10.1.23.1 via ge-0/0/1.0, Push 299872

mpls.0: 8 destinations, 8 routes (8 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

299808             *[LDP/9] 1w4d 02:44:26, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Swap 299888
299856             *[LDP/9] 1w4d 02:38:47, metric 1
                    >  to 10.1.23.1 via ge-0/0/1.0, Pop      
299856(S=0)        *[LDP/9] 1w4d 02:38:47, metric 1
                    >  to 10.1.23.1 via ge-0/0/1.0, Pop      
299872             *[LDP/9] 1w4d 02:01:41, metric 1
                    >  to 10.1.23.1 via ge-0/0/1.0, Swap 299872
299888             *[LDP/9] 1w4d 00:42:23, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Swap 300000
299904             *[LDP/9] 1w4d 00:41:40, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Swap 300032
299920             *[LDP/9] 1w4d 00:41:40, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Swap 300016
299936             *[LDP/9] 1w4d 00:41:40, metric 1
                    >  to 172.16.22.2 via ge-0/0/0.0, Swap 300048

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

ff02::2/128        *[INET6/0] 1w5d 01:55:12
                       MultiRecv

路由器 PE4 状态

content_copy zoom_out_map
user@PE4> show bgp summary
Threading mode: BGP I/O
Default eBGP mode: advertise - accept, receive - accept
Groups: 2 Peers: 2 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
bgp.l3vpn.0          
                       2          2          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
172.16.44.1           65010      35462      35336       0       0 1w4d 1:56:16 Establ
  vpn-customer.inet.0: 1/1/1/0
192.168.20.3          65020      35168      35168       0       1 1w4d 0:42:52 Establ
  bgp.l3vpn.0: 2/2/2/0
  vpn-customer.inet.0: 2/2/2/0

user@PE4>  show route protocol bgp
inet.0: 20 destinations, 20 routes (20 active, 0 holddown, 0 hidden)

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)

vpn-customer.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

172.16.33.0/30     *[BGP/170] 1w4d 00:43:33, localpref 100, from 192.168.20.3
                      AS path: I, validation-state: unverified
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 300080, Push 299936(top)
192.168.10.3/32    *[BGP/170] 1w4d 00:43:32, localpref 100, from 192.168.20.3
                      AS path: 65010 I, validation-state: unverified
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 300080, Push 299936(top)
192.168.10.4/32    *[BGP/170] 1w4d 01:56:57, localpref 100
                      AS path: 65010 I, validation-state: unverified
                    >  to 172.16.44.1 via ge-0/0/1.0

mpls.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)
                                        
bgp.l3vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

192.168.20.3:1:172.16.33.0/30                
                   *[BGP/170] 1w4d 00:43:33, localpref 100, from 192.168.20.3
                      AS path: I, validation-state: unverified
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 300080, Push 299936(top)
192.168.20.3:1:192.168.10.3/32                
                   *[BGP/170] 1w4d 00:43:32, localpref 100, from 192.168.20.3
                      AS path: 65010 I, validation-state: unverified
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 300080, Push 299936(top)

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

vpn-customer.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

user@PE4>  show route protocol ldp
inet.0: 20 destinations, 20 routes (20 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

224.0.0.2/32       *[LDP/9] 1w4d 02:05:35, metric 1
                       MultiRecv

inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

10.1.21.0/30       *[LDP/9] 1w4d 00:46:06, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 299888
10.1.32.0/30       *[LDP/9] 1w4d 00:45:23, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 299904
192.168.20.1/32    *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 299824
192.168.20.2/32    *[LDP/9] 1w4d 00:45:23, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 299920
192.168.20.3/32    *[LDP/9] 1w4d 00:45:23, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 299936
192.168.20.12/32   *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Push 299776
192.168.20.13/32   *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0

vpn-customer.inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)

mpls.0: 13 destinations, 13 routes (13 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

299776             *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Pop      
299776(S=0)        *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Pop      
299792             *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Swap 299776
299840             *[LDP/9] 1w4d 02:05:25, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Swap 299824
299904             *[LDP/9] 1w4d 00:46:06, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Swap 299888
299920             *[LDP/9] 1w4d 00:45:23, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Swap 299904
299936             *[LDP/9] 1w4d 00:45:23, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Swap 299920
299952             *[LDP/9] 1w4d 00:45:23, metric 1
                    >  to 10.1.43.2 via ge-0/0/0.0, Swap 299936

bgp.l3vpn.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

vpn-customer.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

路由器 CE4 状态

content_copy zoom_out_map
user@CE4> show route protocol bgp
inet.0: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

172.16.33.0/30     *[BGP/170] 1w4d 00:46:22, localpref 100
                      AS path: 65020 I, validation-state: unverified
                    >  to 172.16.44.2 via ge-0/0/0.0
192.168.10.3/32    *[BGP/170] 1w4d 00:46:21, localpref 100
                      AS path: 65020 65020 I, validation-state: unverified
                    >  to 172.16.44.2 via ge-0/0/0.0

inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)

user@CE4>  show bgp summary
Threading mode: BGP I/O
Default eBGP mode: advertise - accept, receive - accept
Groups: 1 Peers: 1 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
inet.0               
                       2          2          0          0          0          0
Peer                     AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
172.16.44.2           65020      35346      35470       0       0 1w4d 2:00:25 Establ
  inet.0: 2/2/2/0

user@CE4>  ping 192.168.10.3 source 192.168.10.4 count 2
PING 192.168.10.3 (192.168.10.3): 56 data bytes
64 bytes from 192.168.10.3: icmp_seq=0 ttl=54 time=63.857 ms
64 bytes from 192.168.10.3: icmp_seq=1 ttl=54 time=19.586 ms

--- 192.168.10.3 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/stddev = 19.586/41.721/63.857/22.135 ms

arrow_backward PREVIOUS LDP 配置

NEXT arrow_forward 通过 SR-TE 建立隧道 LDP

MPLS 应用程序用户指南