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示例：MX 路由器上的以太网环网保护交换配置
此示例说明如何在 MX 系列路由器上配置以太网环网保护交换：
要求
此示例使用以下硬件和软件组件：
通过两个千兆以太网接口运行 Junos OS 的路由器节点 1。
通过两个千兆以太网接口运行 Junos OS 的路由器节点 2。
通过两个千兆以太网接口运行 Junos OS 的路由器节点 3。
以太网环网概述和拓扑结构
本节介绍三节点环的配置示例。环形拓扑如图 1 所示。
图 1：三节点环状拓扑的示例
拓扑
本节中的配置仅适用于 RAPS 通道。用户流量的网桥域与普通网桥域相同。唯一的例外是，如果桥接域包含一个环形端口，则它还必须包含同一个环的另一个环形端口。
配置三节点环网
要配置三节点环网上的以太网环网保护交换，请执行以下操作：
在三节点环上配置以太网环网保护交换
逐步过程
- 配置节点 1
interfaces { ge-1/0/1 { vlan-tagging; encapsulation flexible-ethernet-services; unit 1 { encapsulation vlan-bridge; vlan-id 100; } } ge-1/2/4 { vlan-tagging; encapsulation flexible-ethernet-services; unit 1 { encapsulation vlan-bridge; vlan-id 100; } } } bridge-domains { bd1 { domain-type bridge; interface ge-1/2/4.1; interface ge-1/0/1.1; } } protocols { protection-group { ethernet-ring pg101 { node-id 00:01:01:00:00:01; ring-protection-link-owner; east-interface { control-channel ge-1/0/1.1; ring-protection-link-end; } west-interface { control-channel ge-1/2/4.1; } } } } protocols { oam { ethernet { connectivity-fault-management { action-profile rmep-defaults { default-action { interface-down; } } maintenance-domain d1 { level 0; maintenance-association 100 { mep 1 { interface ge-1/0/1; remote-mep 2 { action-profile rmep-defaults; } } } } maintenance-domain d2 { level 0; maintenance-association 100 { mep 1 { interface ge-1/2/4; remote-mep 2 { action-profile rmep-defaults; } } } } } } } } - 配置节点 2
interfaces { ge-1/0/2 { vlan-tagging; encapsulation flexible-ethernet-services; unit 1 { encapsulation vlan-bridge; vlan-id 100; } } ge-1/2/1 { vlan-tagging; encapsulation flexible-ethernet-services; unit 1 { encapsulation vlan-bridge; vlan-id 100; } } } bridge-domains { bd1 { domain-type bridge; interface ge-1/2/1.1; interface ge-1/0/2.1; } } protocols { protection-group { ethernet-ring pg102 { east-interface { control-channel ge-1/0/2.1; } west-interface { control-channel ge-1/2/1.1; } } } } protocols { oam { ethernet { connectivity-fault-management { action-profile rmep-defaults { default-action { interface-down; } } maintenance-domain d1 { level 0; maintenance-association 100 { mep 2 { interface ge-1/2/1; remote-mep 1 { action-profile rmep-defaults; } } } } maintenance-domain d3 { level 0; maintenance-association 100 { mep 1 { interface ge-1/0/2; remote-mep 2 { action-profile rmep-defaults; } } } } } } } } - 配置节点 3
interfaces { ge-1/0/4 { vlan-tagging; encapsulation flexible-ethernet-services; unit 1 { encapsulation vlan-bridge; vlan-id 100; } } ge-1/0/3 { vlan-tagging; encapsulation flexible-ethernet-services; unit 1 { encapsulation vlan-bridge; vlan-id 100; } } } bridge-domains { bd1 { domain-type bridge; interface ge-1/0/4.1; interface ge-1/0/3.1; } } protocols { protection-group { ethernet-ring pg103 { east-interface { control-channel ge-1/0/3.1; } west-interface { control-channel ge-1/0/4.1; } } } } protocols { oam { ethernet { connectivity-fault-management { action-profile rmep-defaults { default-action { interface-down; } } maintenance-domain d2 { level 0; maintenance-association 100 { mep 2 { interface ge-1/0/4; remote-mep 1 { action-profile rmep-defaults; } } } } maintenance-domain d3 { level 0; maintenance-association 100 { mep 2 { interface ge-1/0/3; remote-mep 1 { action-profile rmep-defaults; } } } } } } } }
示例：以太网 RPS 输出
本节提供基于 示例：MX 路由器上的以太网环网保护交换配置中所示配置的输出示例。这些示例中使用的 show 命令可以帮助验证配置和正确操作。
正常情况 — RPL 所有者节点
如果振铃未出现故障，命令 show 将为节点 1 输出如下：
user@node1> show protection-group ethernet-ring aps Ethernet Ring Name Request/state No Flush Ring Protection Link Blocked pg101 NR No Yes Originator Remote Node ID Yes user@node1> show protection-group ethernet-ring interface Ethernet ring port parameters for protection group pg101 Interface Control Channel Forward State Ring Protection Link End ge-1/0/1 ge-1/0/1.1 discarding Yes ge-1/2/4 ge-1/2/4.1 forwarding No Signal Failure Admin State Clear IFF ready Clear IFF ready user@node1> show protection-group ethernet-ring node-state Ethernet ring APS State Event Ring Protection Link Owner pg101 idle NR-RB Yes Restore Timer Quard Timer Operation state disabled disabled operational user@node1> show protection-group ethernet-ring statistics group-name pg101 Ethernet Ring statistics for PG pg101 RAPS sent : 1 RAPS received : 0 Local SF happened: : 0 Remote SF happened: : 0 NR event happened: : 0 NR-RB event happened: : 1
正常情况 — 其他节点
对于节点 2 和节点 3，输出应相同：
user@node2> show protection-group ethernet-ring aps Ethernet Ring Name Request/state No Flush Ring Protection Link Blocked pg102 NR No Yes Originator Remote Node ID No 00:01:01:00:00:01 user@node2> show protection-group ethernet-ring interface Ethernet ring port parameters for protection group pg102 Interface Control Channel Forward State Ring Protection Link End ge-1/2/1 ge-1/2/1.1 forwarding No ge-1/0/2 ge-1/0/2.1 forwarding No Signal Failure Admin State Clear IFF ready Clear IFF ready user@node2> show protection-group ethernet-ring node-state Ethernet ring APS State Event Ring Protection Link Owner pg102 idle NR-RB No Restore Timer Quard Timer Operation state disabled disabled operational user@node2> show protection-group ethernet-ring statistics group-name pg102 Ethernet Ring statistics for PG pg101 RAPS sent : 0 RAPS received : 1 Local SF happened: : 0 Remote SF happened: : 0 NR event happened: : 0 NR-RB event happened: : 1
故障情况 — RPL 所有者节点
如果节点 2 和节点 3 之间有链路故障，命令 show 将为节点 1 输出如下：
user@node1> show protection-group ethernet-ring aps
Ethernet Ring Name Request/state No Flush Ring Protection Link Blocked
pg101 SF NO No
Originator Remote Node ID
No 00:01:02:00:00:01
user@node1> show protection-group ethernet-ring interface
Ethernet ring port parameters for protection group pg101
Interface Control Channel Forward State Ring Protection Link End
ge-1/0/1 ge-1/0/1.1 forwarding Yes
ge-1/2/4 ge-1/2/4.1 forwarding No
Signal Failure Admin State
Clear IFF ready
Clear IFF ready
user@node1> show protection-group ethernet-ring node-state
Ethernet ring APS State Event Ring Protection Link Owner
pg101 protected SF Yes
Restore Timer Quard Timer Operation state
disabled disabled operational
user@node1> show protection-group ethernet-ring statistics group-name pg101
Ethernet Ring statistics for PG pg101
RAPS sent : 1
RAPS received : 1
Local SF happened: : 0
Remote SF happened: : 1
NR event happened: : 0
NR-RB event happened: : 1
故障情况 — 其他节点
对于节点 2 和节点 3，输出应相同：
user@node2> show protection-group ethernet-ring aps
Ethernet Ring Name Request/state No Flush Ring Protection Link Blocked
pg102 SF No No
Originator Remote Node ID
Yes 00:00:00:00:00:00
user@node2> show protection-group ethernet-ring interface
Ethernet ring port parameters for protection group pg102
Interface Control Channel Forward State Ring Protection Link End
ge-1/2/1 ge-1/2/1.1 forwarding No
ge-1/0/2 ge-1/0/2.1 discarding No
Signal Failure Admin State
Clear IFF ready
set IFF ready
user@node2> show protection-group ethernet-ring node-state
Ethernet ring APS State Event Ring Protection Link Owner
pg102 idle NR-RB No
Restore Timer Quard Timer Operation state
disabled disabled operational
user@node2> show protection-group ethernet-ring statistics group-name pg102
Ethernet Ring statistics for PG pg101
RAPS sent : 1
RAPS received : 1
Local SF happened: : 1
Remote SF happened: : 0
NR event happened: : 0
NR-RB event happened: : 1