示例：在多点 LDP 域中配置仅组播快速重新路由
此示例说明如何配置仅组播快速重新路由 （MoFRR），以便在链路故障时最大程度地减少网络中的数据包丢失。
多点 LDP MoFRR 用于 MPLS 网络的出口节点，数据包将转发至 IP 网络。对于多点 LDP MoFRR，将建立通向上游提供商边缘 （PE） 路由器的两条路径，以便在标签边缘路由器 （LER） 上接收两个 MPLS 数据包流。其中一个流（主流）被接受，另一个流（备份）在 LER 上被丢弃。如果主路径出现故障，则接受备份流。
要求
配置此示例之前，不需要除设备初始化之外的特殊配置。
在多点 LDP 域中，要使 MoFRR 正常工作，只有出口 PE 路由器需要启用 MoFRR。其他路由器不需要支持 MoFRR。
具有 MPC 线卡的 MX 系列平台支持 MoFRR。作为先决条件，路由器必须设置为 network-services enhanced-ip 模式，并且平台中的所有线卡都必须是 MPC。
此示例要求出口 PE 路由器上安装 Junos OS 14.1 或更高版本。
概述
在此示例中，设备 R3 是出口边缘路由器。MoFRR 仅在此设备上启用。
OSPF 用于连接，但也可以使用任何内部网关协议 （IGP） 或静态路由。
出于测试目的，路由器用于模拟源和接收器。设备 R4 和设备 R8 配置为使用命令静态 set protocols igmp interface interface-name static group group 加入所需组。如果真正的组播接收器主机不可用（如本例所示），此静态 IGMP 配置非常有用。在接收方上，为了使其侦听组播组地址，此示例使用 set protocols sap listen group.
MoFRR 配置包括一个策略选项，此示例中未显示，但将单独说明。该选项配置如下：
stream-protection { policy policy-name; }
CLI 快速配置
CLI 快速配置
要快速配置此示例，请复制以下命令，将其粘贴到文本文件中，删除所有换行符，更改与您的网络配置匹配所需的任何详细信息，然后将命令复制并粘贴到层次结构级别的 CLI [edit] 中。
设备 src1
set interfaces ge-1/2/10 unit 0 description src1-to-R1 set interfaces ge-1/2/10 unit 0 family inet address 10.5.0.1/30 set interfaces ge-1/2/11 unit 0 description src1-to-R1 set interfaces ge-1/2/11 unit 0 family inet address 192.168.219.11/24 set interfaces lo0 unit 0 family inet address 10.0.1.17/32 set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive
设备 src2
set interfaces ge-1/2/24 unit 0 description src2-to-R5 set interfaces ge-1/2/24 unit 0 family inet address 10.5.0.2/30 set interfaces lo0 unit 0 family inet address 10.0.1.18/32 set protocols rsvp interface all set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive
设备 R1
set interfaces ge-1/2/12 unit 0 description R1-to-R2 set interfaces ge-1/2/12 unit 0 family inet address 10.1.2.1/30 set interfaces ge-1/2/12 unit 0 family mpls set interfaces ge-1/2/13 unit 0 description R1-to-R6 set interfaces ge-1/2/13 unit 0 family inet address 10.1.6.1/30 set interfaces ge-1/2/13 unit 0 family mpls set interfaces ge-1/2/10 unit 0 description R1-to-src1 set interfaces ge-1/2/10 unit 0 family inet address 10.1.0.2/30 set interfaces ge-1/2/11 unit 0 description R1-to-src1 set interfaces ge-1/2/11 unit 0 family inet address 192.168.219.9/30 set interfaces lo0 unit 0 family inet address 10.1.1.1/32 set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.1 set protocols bgp group ibgp export static-route-tobgp set protocols bgp group ibgp peer-as 65010 set protocols bgp group ibgp neighbor 10.1.1.3 set protocols bgp group ibgp neighbor 10.1.1.7 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-1/2/12.0 set protocols ldp interface ge-1/2/13.0 set protocols ldp interface lo0.0 set protocols ldp p2mp set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim rp static address 10.1.1.5 set protocols pim interface lo0.0 set protocols pim interface ge-1/2/10.0 set protocols pim interface ge-1/2/11.0 set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.1.7/32 orlonger set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.0.0/30 orlonger set policy-options policy-statement mldppim-ex term A then accept set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set routing-options autonomous-system 65010
设备 R2
set interfaces ge-1/2/12 unit 0 description R2-to-R1 set interfaces ge-1/2/12 unit 0 family inet address 10.1.2.2/30 set interfaces ge-1/2/12 unit 0 family mpls set interfaces ge-1/2/14 unit 0 description R2-to-R3 set interfaces ge-1/2/14 unit 0 family inet address 10.2.3.1/30 set interfaces ge-1/2/14 unit 0 family mpls set interfaces ge-1/2/16 unit 0 description R2-to-R5 set interfaces ge-1/2/16 unit 0 family inet address 10.2.5.1/30 set interfaces ge-1/2/16 unit 0 family mpls set interfaces ge-1/2/17 unit 0 description R2-to-R7 set interfaces ge-1/2/17 unit 0 family inet address 10.2.7.1/30 set interfaces ge-1/2/17 unit 0 family mpls set interfaces ge-1/2/15 unit 0 description R2-to-R3 set interfaces ge-1/2/15 unit 0 family inet address 10.2.94.1/30 set interfaces ge-1/2/15 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.2/32 set interfaces lo0 unit 0 family mpls set protocols rsvp interface all set protocols mpls interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface all set protocols ldp p2mp set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set routing-options autonomous-system 65010
设备 R3
set chassis network-services enhanced-ip set interfaces ge-1/2/14 unit 0 description R3-to-R2 set interfaces ge-1/2/14 unit 0 family inet address 10.2.3.2/30 set interfaces ge-1/2/14 unit 0 family mpls set interfaces ge-1/2/18 unit 0 description R3-to-R4 set interfaces ge-1/2/18 unit 0 family inet address 10.3.4.1/30 set interfaces ge-1/2/18 unit 0 family mpls set interfaces ge-1/2/19 unit 0 description R3-to-R6 set interfaces ge-1/2/19 unit 0 family inet address 10.3.6.2/30 set interfaces ge-1/2/19 unit 0 family mpls set interfaces ge-1/2/21 unit 0 description R3-to-R7 set interfaces ge-1/2/21 unit 0 family inet address 10.3.7.1/30 set interfaces ge-1/2/21 unit 0 family mpls set interfaces ge-1/2/22 unit 0 description R3-to-R8 set interfaces ge-1/2/22 unit 0 family inet address 10.3.8.1/30 set interfaces ge-1/2/22 unit 0 family mpls set interfaces ge-1/2/15 unit 0 description R3-to-R2 set interfaces ge-1/2/15 unit 0 family inet address 10.2.94.2/30 set interfaces ge-1/2/15 unit 0 family mpls set interfaces ge-1/2/20 unit 0 description R3-to-R6 set interfaces ge-1/2/20 unit 0 family inet address 10.2.96.2/30 set interfaces ge-1/2/20 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.3/32 primary set routing-options autonomous-system 65010 set routing-options multicast stream-protection set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.3 set protocols bgp group ibgp peer-as 10 set protocols bgp group ibgp neighbor 10.1.1.1 set protocols bgp group ibgp neighbor 10.1.1.5 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface fxp0.0 disable set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface all set protocols ldp p2mp set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface lo0.0 set protocols pim interface ge-1/2/18.0 set protocols pim interface ge-1/2/22.0 set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then accept set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.0.1/30 orlonger set policy-options policy-statement mldppim-ex term A then accept set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept
设备 R4
set interfaces ge-1/2/18 unit 0 description R4-to-R3 set interfaces ge-1/2/18 unit 0 family inet address 10.3.4.2/30 set interfaces ge-1/2/18 unit 0 family mpls set interfaces ge-1/2/23 unit 0 description R4-to-R7 set interfaces ge-1/2/23 unit 0 family inet address 10.4.7.1/30 set interfaces lo0 unit 0 family inet address 10.1.1.4/32 set protocols igmp interface ge-1/2/18.0 version 3 set protocols igmp interface ge-1/2/18.0 static group 232.1.1.1 group-count 2 set protocols igmp interface ge-1/2/18.0 static group 232.1.1.1 source 192.168.219.11 set protocols igmp interface ge-1/2/18.0 static group 232.2.2.2 source 10.2.7.7 set protocols sap listen 232.1.1.1 set protocols sap listen 232.2.2.2 set protocols rsvp interface all set protocols mpls interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface ge-1/2/23.0 set protocols pim interface ge-1/2/18.0 set protocols pim interface lo0.0 set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set routing-options autonomous-system 65010
设备 R5
set interfaces ge-1/2/24 unit 0 description R5-to-src2 set interfaces ge-1/2/24 unit 0 family inet address 10.5.0.1/30 set interfaces ge-1/2/16 unit 0 description R5-to-R2 set interfaces ge-1/2/16 unit 0 family inet address 10.2.5.2/30 set interfaces ge-1/2/16 unit 0 family mpls set interfaces ge-1/2/25 unit 0 description R5-to-R6 set interfaces ge-1/2/25 unit 0 family inet address 10.5.6.1/30 set interfaces ge-1/2/25 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.5/32 set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.5 set protocols bgp group ibgp export static-route-tobgp set protocols bgp group ibgp peer-as 65010 set protocols bgp group ibgp neighbor 10.1.1.7 set protocols bgp group ibgp neighbor 10.1.1.3 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-1/2/16.0 set protocols ldp interface ge-1/2/25.0 set protocols ldp p2mp set protocols pim interface lo0.0 set protocols pim interface ge-1/2/24.0 set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set routing-options autonomous-system 65010
设备 R6
set interfaces ge-1/2/13 unit 0 description R6-to-R1 set interfaces ge-1/2/13 unit 0 family inet address 10.1.6.2/30 set interfaces ge-1/2/13 unit 0 family mpls set interfaces ge-1/2/19 unit 0 description R6-to-R3 set interfaces ge-1/2/19 unit 0 family inet address 10.3.6.1/30 set interfaces ge-1/2/19 unit 0 family mpls set interfaces ge-1/2/25 unit 0 description R6-to-R5 set interfaces ge-1/2/25 unit 0 family inet address 10.5.6.2/30 set interfaces ge-1/2/25 unit 0 family mpls set interfaces ge-1/2/26 unit 0 description R6-to-R7 set interfaces ge-1/2/26 unit 0 family inet address 10.6.7.1/30 set interfaces ge-1/2/26 unit 0 family mpls set interfaces ge-1/2/20 unit 0 description R6-to-R3 set interfaces ge-1/2/20 unit 0 family inet address 10.2.96.1/30 set interfaces ge-1/2/20 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.6/30 set protocols rsvp interface all set protocols mpls interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface all set protocols ldp p2mp
设备 R7
set interfaces ge-1/2/17 unit 0 description R7-to-R2 set interfaces ge-1/2/17 unit 0 family inet address 10.2.7.2/30 set interfaces ge-1/2/17 unit 0 family mpls set interfaces ge-1/2/21 unit 0 description R7-to-R3 set interfaces ge-1/2/21 unit 0 family inet address 10.3.7.2/30 set interfaces ge-1/2/21 unit 0 family mpls set interfaces ge-1/2/23 unit 0 description R7-to-R4 set interfaces ge-1/2/23 unit 0 family inet address 10.4.7.2/30 set interfaces ge-1/2/23 unit 0 family mpls set interfaces ge-1/2/26 unit 0 description R7-to-R6 set interfaces ge-1/2/26 unit 0 family inet address 10.6.7.2/30 set interfaces ge-1/2/26 unit 0 family mpls set interfaces ge-1/2/27 unit 0 description R7-to-R8 set interfaces ge-1/2/27 unit 0 family inet address 10.7.8.1/30 set interfaces ge-1/2/27 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.7/32 set protocols rsvp interface all set protocols mpls interface all set protocols bgp group ibgp local-address 10.1.1.7 set protocols bgp group ibgp export static-route-tobgp set protocols bgp group ibgp peer-as 65010 set protocols bgp group ibgp neighbor 10.1.1.5 set protocols bgp group ibgp neighbor 10.1.1.1 set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols ldp interface ge-1/2/17.0 set protocols ldp interface ge-1/2/21.0 set protocols ldp interface ge-1/2/26.0 set protocols ldp p2mp set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface lo0.0 set protocols pim interface ge-1/2/27.0 set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then accept set policy-options policy-statement mldppim-ex term A from source-address-filter 10.1.0.1/30 orlonger set policy-options policy-statement mldppim-ex term A then accept set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set routing-options autonomous-system 65010 set routing-options multicast stream-protection policy mldppim-ex
设备 R8
set interfaces ge-1/2/22 unit 0 description R8-to-R3 set interfaces ge-1/2/22 unit 0 family inet address 10.3.8.2/30 set interfaces ge-1/2/22 unit 0 family mpls set interfaces ge-1/2/27 unit 0 description R8-to-R7 set interfaces ge-1/2/27 unit 0 family inet address 10.7.8.2/30 set interfaces ge-1/2/27 unit 0 family mpls set interfaces lo0 unit 0 family inet address 10.1.1.8/32 set protocols igmp interface ge-1/2/22.0 version 3 set protocols igmp interface ge-1/2/22.0 static group 232.1.1.1 group-count 2 set protocols igmp interface ge-1/2/22.0 static group 232.1.1.1 source 192.168.219.11 set protocols igmp interface ge-1/2/22.0 static group 232.2.2.2 source 10.2.7.7 set protocols sap listen 232.1.1.1 set protocols sap listen 232.2.2.2 set protocols rsvp interface all set protocols ospf traffic-engineering set protocols ospf area 0.0.0.0 interface all set protocols ospf area 0.0.0.0 interface lo0.0 passive set protocols pim mldp-inband-signalling policy mldppim-ex set protocols pim interface ge-1/2/27.0 set protocols pim interface ge-1/2/22.0 set protocols pim interface lo0.0 set policy-options policy-statement static-route-tobgp term static from protocol static set policy-options policy-statement static-route-tobgp term static from protocol direct set policy-options policy-statement static-route-tobgp term static then accept set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.0.0/24 orlonger set policy-options policy-statement mldppim-ex term B from source-address-filter 192.168.219.11/32 orlonger set policy-options policy-statement mldppim-ex term B then p2mp-lsp-root address 10.1.1.2 set policy-options policy-statement mldppim-ex term B then accept set routing-options autonomous-system 65010
配置
程序
分步过程
以下示例要求您在配置层次结构中导航各个级别。有关导航 CLI 的信息，请参阅《Junos OS CLI 用户指南》中的在配置模式下使用 CLI 编辑器。
要配置设备 R3：
启用增强型 IP 模式。
[edit chassis] user@R3# set network-services enhanced-ip
配置设备接口。
[edit interfaces] user@R3# set ge-1/2/14 unit 0 description R3-to-R2 user@R3# set ge-1/2/14 unit 0 family inet address 10.2.3.2/30 user@R3# set ge-1/2/14 unit 0 family mpls user@R3# set ge-1/2/18 unit 0 description R3-to-R4 user@R3# set ge-1/2/18 unit 0 family inet address 10.3.4.1/30 user@R3# set ge-1/2/18 unit 0 family mpls user@R3# set ge-1/2/19 unit 0 description R3-to-R6 user@R3# set ge-1/2/19 unit 0 family inet address 10.3.6.2/30 user@R3# set ge-1/2/19 unit 0 family mpls user@R3# set ge-1/2/21 unit 0 description R3-to-R7 user@R3# set ge-1/2/21 unit 0 family inet address 10.3.7.1/30 user@R3# set ge-1/2/21 unit 0 family mpls user@R3# set ge-1/2/22 unit 0 description R3-to-R8 user@R3# set ge-1/2/22 unit 0 family inet address 10.3.8.1/30 user@R3# set ge-1/2/22 unit 0 family mpls user@R3# set ge-1/2/15 unit 0 description R3-to-R2 user@R3# set ge-1/2/15 unit 0 family inet address 10.2.94.2/30 user@R3# set ge-1/2/15 unit 0 family mpls user@R3# set ge-1/2/20 unit 0 description R3-to-R6 user@R3# set ge-1/2/20 unit 0 family inet address 10.2.96.2/30 user@R3# set ge-1/2/20 unit 0 family mpls user@R3# set lo0 unit 0 family inet address 10.1.1.3/32 primary
配置自治系统 （AS） 编号。
user@R3# set routing-options autonomous-system 6510
配置路由策略。
[edit policy-options policy-statement mldppim-ex] user@R3# set term B from source-address-filter 192.168.0.0/24 orlonger user@R3# set term B from source-address-filter 192.168.219.11/32 orlonger user@R3# set term B then accept user@R3# set term A from source-address-filter 10.1.0.1/30 orlonger user@R3# set term A then accept [edit policy-options policy-statement static-route-tobgp] user@R3# set term static from protocol static user@R3# set term static from protocol direct user@R3# set term static then accept
配置 PIM。
[edit protocols pim] user@R3# set mldp-inband-signalling policy mldppim-ex user@R3# set interface lo0.0 user@R3# set interface ge-1/2/18.0 user@R3# set interface ge-1/2/22.0
配置 LDP。
[edit protocols ldp] user@R3# set interface all user@R3# set p2mp
配置 IGP 或静态路由。
[edit protocols ospf] user@R3# set traffic-engineering user@R3# set area 0.0.0.0 interface all user@R3# set area 0.0.0.0 interface fxp0.0 disable user@R3# set area 0.0.0.0 interface lo0.0 passive
配置内部 BGP。
[edit protocols bgp group ibgp] user@R3# set local-address 10.1.1.3 user@R3# set peer-as 65010 user@R3# set neighbor 10.1.1.1 user@R3# set neighbor 10.1.1.5
配置 MPLS 和 RSVP（可选）。
[edit protocols mpls] user@R3# set interface all [edit protocols rsvp] user@R3# set interface all
启用 MoFRR。
[edit routing-options multicast] user@R3# set stream-protection
结果
在配置模式下，输入 show chassis、 show interfaces、 show policy-optionsshow protocols和show routing-options命令来确认您的配置。如果输出未显示预期的配置，请重复此示例中的说明以更正配置。
user@R3# show chassis network-services enhanced-ip;
user@R3# show interfaces
ge-1/2/14 {
unit 0 {
description R3-to-R2;
family inet {
address 10.2.3.2/30;
}
family mpls;
}
}
ge-1/2/18 {
unit 0 {
description R3-to-R4;
family inet {
address 10.3.4.1/30;
}
family mpls;
}
}
ge-1/2/19 {
unit 0 {
description R3-to-R6;
family inet {
address 10.3.6.2/30;
}
family mpls;
}
}
ge-1/2/21 {
unit 0 {
description R3-to-R7;
family inet {
address 10.3.7.1/30;
}
family mpls;
}
}
ge-1/2/22 {
unit 0 {
description R3-to-R8;
family inet {
address 10.3.8.1/30;
}
family mpls;
}
}
ge-1/2/15 {
unit 0 {
description R3-to-R2;
family inet {
address 10.2.94.2/30;
}
family mpls;
}
}
ge-1/2/20 {
unit 0 {
description R3-to-R6;
family inet {
address 10.2.96.2/30;
}
family mpls;
}
}
lo0 {
unit 0 {
family inet {
address 192.168.15.1/32;
address 10.1.1.3/32 {
primary;
}
}
}
}
user@R3# show protocols
rsvp {
interface all;
}
mpls {
interface all;
}
bgp {
group ibgp {
local-address 10.1.1.3;
peer-as 65010;
neighbor 10.1.1.1;
neighbor 10.1.1.5;
}
}
ospf {
traffic-engineering;
area 0.0.0.0 {
interface all;
interface fxp0.0 {
disable;
}
interface lo0.0 {
passive;
}
}
}
ldp {
interface all;
p2mp;
}
pim {
mldp-inband-signalling {
policy mldppim-ex;
}
interface lo0.0;
interface ge-1/2/18.0;
interface ge-1/2/22.0;
}
user@R3# show policy-options
policy-statement mldppim-ex {
term B {
from {
source-address-filter 192.168.0.0/24 orlonger;
source-address-filter 192.168.219.11/32 orlonger;
}
then accept;
}
term A {
from {
source-address-filter 10.1.0.1/30 orlonger;
}
then accept;
}
}
policy-statement static-route-tobgp {
term static {
from protocol [ static direct ];
then accept;
}
}
user@R3# show routing-options
autonomous-system 65010;
multicast {
stream-protection;
}
如果完成设备配置，请从配置模式输入 commit 。
验证
确认配置工作正常。
检查 LDP 点对多点转发等效类
目的
确保启用了 MoFRR，并确定正在使用哪些标签。
行动
user@R3> show ldp p2mp fec LDP P2MP FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11 MoFRR enabled Fec type: Egress (Active) Label: 301568 P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11 MoFRR enabled Fec type: Egress (Active) Label: 301600
意义
输出显示 MoFRR 已启用，并且标签 301568 和 301600 正用于两个多点 LDP 点对多点 LSP。
检查标签信息
目的
确保出口设备有两个用于组播组加入的上游接口。
行动
user@R3> show route label 301568 detail
mpls.0: 18 destinations, 18 routes (18 active, 0 holddown, 0 hidden)
301568 (1 entry, 1 announced)
*LDP Preference: 9
Next hop type: Flood
Address: 0x2735208
Next-hop reference count: 3
Next hop type: Router, Next hop index: 1397
Address: 0x2735d2c
Next-hop reference count: 3
Next hop: 10.3.8.2 via ge-1/2/22.0
Label operation: Pop
Load balance label: None;
Next hop type: Router, Next hop index: 1395
Address: 0x2736290
Next-hop reference count: 3
Next hop: 10.3.4.2 via ge-1/2/18.0
Label operation: Pop
Load balance label: None;
State: <Active Int AckRequest MulticastRPF>
Local AS: 65010
Age: 54:05 Metric: 1
Validation State: unverified
Task: LDP
Announcement bits (1): 0-KRT
AS path: I
FECs bound to route: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11
Primary Upstream : 10.1.1.3:0--10.1.1.2:0
RPF Nexthops :
ge-1/2/15.0, 10.2.94.1, Label: 301568, weight: 0x1
ge-1/2/14.0, 10.2.3.1, Label: 301568, weight: 0x1
Backup Upstream : 10.1.1.3:0--10.1.1.6:0
RPF Nexthops :
ge-1/2/20.0, 10.2.96.1, Label: 301584, weight: 0xfffe
ge-1/2/19.0, 10.3.6.1, Label: 301584, weight: 0xfffe
user@R3> show route label 301600 detail
mpls.0: 18 destinations, 18 routes (18 active, 0 holddown, 0 hidden)
301600 (1 entry, 1 announced)
*LDP Preference: 9
Next hop type: Flood
Address: 0x27356b4
Next-hop reference count: 3
Next hop type: Router, Next hop index: 1520
Address: 0x27350f4
Next-hop reference count: 3
Next hop: 10.3.8.2 via ge-1/2/22.0
Label operation: Pop
Load balance label: None;
Next hop type: Router, Next hop index: 1481
Address: 0x273645c
Next-hop reference count: 3
Next hop: 10.3.4.2 via ge-1/2/18.0
Label operation: Pop
Load balance label: None;
State: <Active Int AckRequest MulticastRPF>
Local AS: 65010
Age: 54:25 Metric: 1
Validation State: unverified
Task: LDP
Announcement bits (1): 0-KRT
AS path: I
FECs bound to route: P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11
Primary Upstream : 10.1.1.3:0--10.1.1.6:0
RPF Nexthops :
ge-1/2/20.0, 10.2.96.1, Label: 301600, weight: 0x1
ge-1/2/19.0, 10.3.6.1, Label: 301600, weight: 0x1
Backup Upstream : 10.1.1.3:0--1.1.1.2:0
RPF Nexthops :
ge-1/2/15.0, 10.2.94.1, Label: 301616, weight: 0xfffe
ge-1/2/14.0, 10.2.3.1, Label: 301616, weight: 0xfffe
意义
输出显示主上游路径和备份上游路径。它还显示 RPF 下一跃点。
检查组播路由
目的
检查 IP 组播转发表，确保有一个上游 RPF 接口列表，其中包含主接口和备份接口。
行动
user@R3> show ldp p2mp path
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.2:0 (301568) (Primary)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301568, 1
Interface ge-1/2/20.0, 10.2.96.1, 301584, 65534
Interface ge-1/2/14.0, 10.2.3.1, 301568, 1
Interface ge-1/2/19.0, 10.3.6.1, 301584, 65534
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11 (Active)
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.6:0 (301584) (Backup)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301568, 1
Interface ge-1/2/20.0, 10.2.96.1, 301584, 65534
Interface ge-1/2/14.0, 10.2.3.1, 301568, 1
Interface ge-1/2/19.0, 10.3.6.1, 301584, 65534
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.1, src: 192.168.219.11 (Active)
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.6:0 (301600) (Primary)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301616, 65534
Interface ge-1/2/20.0, 10.2.96.1, 301600, 1
Interface ge-1/2/14.0, 10.2.3.1, 301616, 65534
Interface ge-1/2/19.0, 10.3.6.1, 301600, 1
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11 (Active)
P2MP path type: Transit/Egress
Output Session (label): 10.1.1.2:0 (301616) (Backup)
Egress Nexthops: Interface ge-1/2/18.0
Interface ge-1/2/22.0
RPF Nexthops: Interface ge-1/2/15.0, 10.2.94.1, 301616, 65534
Interface ge-1/2/20.0, 10.2.96.1, 301600, 1
Interface ge-1/2/14.0, 10.2.3.1, 301616, 65534
Interface ge-1/2/19.0, 10.3.6.1, 301600, 1
Attached FECs: P2MP root-addr 10.1.1.1, grp: 232.1.1.2, src: 192.168.219.11 (Active)
意义
输出显示主会话和备份会话，以及 RPF 下一跃点。
检查 LDP 点对多点流量统计信息
目的
确保同时列出了主统计信息和备份统计信息。
行动
user@R3> show ldp traffic-statistics p2mp
P2MP FEC Statistics:
FEC(root_addr:lsp_id/grp,src) Nexthop Packets Bytes Shared
10.1.1.1:232.1.1.1,192.168.219.11, Label: 301568
10.3.8.2 0 0 No
10.3.4.2 0 0 No
10.1.1.1:232.1.1.1,192.168.219.11, Label: 301584, Backup route
10.3.4.2 0 0 No
10.3.8.2 0 0 No
10.1.1.1:232.1.1.2,192.168.219.11, Label: 301600
10.3.8.2 0 0 No
10.3.4.2 0 0 No
10.1.1.1:232.1.1.2,192.168.219.11, Label: 301616, Backup route
10.3.4.2 0 0 No
10.3.8.2 0 0 No
意义
输出显示带有标签的主路由和备份路由。