ERPS单环组网配置

huainingning

39人浏览 · 2026-08-07 21:08:45

huainingning · 2026-08-07 21:08:45 发布

一网络拓扑

2.1 erps组网规划

如上图：

vlan4094规划为erps环控制vlan，vlan10业务vlan，vlan100为管理vlan

SW1-SW4组网环路，部署erps功能将阻塞端口，其中我们选择SW4作为核心交换机，作为管理和业务网关设备。Erps环控制vlan4094不能也无需配置地址。

配置注意事项：

1.ERPS配置注意事项

必须且只能配置一个RPL owner节点；必须且只能配置一条RPL（是在RPL owner节点和相邻节点的一条链路）；所有节点必须具有相同的 R-APS VLAN。

并且RPL owner配置的 rpl-port east rpl-owner对应的接口会被阻塞

2. 网络拓扑与规划

RPL owner 节点

RPL链路

3.规划

vlan 10，业务vlan，192.168.10.0/24

vlan 100，管理vlan，192.168.1.0/24

vlan 4094，erps-vlan

2.2 erps技术介绍

ERPS（Ethernet Ring Protection Switching，以太环保护切换协议）为 ITU 开发的一种环网保护协议，也称 G.8032。

erps是一个专门应用于以太环网的链路层协议。它在以太环网完整时能够防止数据环路引起的广播风暴，而当以太环网上一条链路断开时能迅速恢复环网上各个节点之间的通信。城域网和企业网大多采用环网来构建以提供高可靠性，但环上任意一个节点发生故障都会影响业务。

环网采用的技术一般是 RPR 或以太环网。RPR 需要专用硬件，因此成本较高。而以太环网技术日趋成熟且成本低廉，城域网和企业网采用以太环网的趋势越来越明显。

目前，解决二层网络环路问题的技术还有 STP。STP 应用比较成熟，但其收敛的时间比较长（秒级）。ERPS 是专门应用于以太环网的链路层协议，具有比 STP 更快的收敛速度。

另外在工业组网或者地铁业务中经常使用erps环网技术进行破环组网。

二设备配置

2.1 SW1设备配置

hostname SW1

erps enable //使能ERPS环功能

erps raps-vlan 4094

ring-port west GigabitEthernet 0/0 east GigabitEthernet 0/1 //配置erps环西向和东向接口，//左侧端口为西，右侧端口为东，即“左西右东”，后面一样

state enable

vlan 10

name YW

vlan 100

name GuanLi

interface GigabitEthernet 0/0

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface GigabitEthernet 0/1

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface VLAN 100

ip address 192.168.1.1 255.255.255.0

2.2 SW2设备配置

hostname SW2

erps enable //使能ERPS环功能

erps raps-vlan 4094

ring-port west GigabitEthernet 0/0 east GigabitEthernet 0/1 //配置erps环西向和东向接口

state enable

vlan 10

name YW

vlan 100

name GuanLi

interface GigabitEthernet 0/0

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface GigabitEthernet 0/1

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface GigabitEthernet 0/2

switchport access vlan 10

interface VLAN 100

ip address 192.168.1.2 255.255.255.0

2.3 SW3设备配置并配置erps东向接口

注意:与RPL owner节点对应，与RPL owner互联链路为RPL链路

hostname SW3

erps enable //使能ERPS环功能

erps raps-vlan 4094

ring-port west GigabitEthernet 0/1 east GigabitEthernet 0/0 //配置erps环西向和东向接口

rpl-port east //配置东向接口

state enable

vlan 10

name YW

vlan 100

name GuanLi

interface GigabitEthernet 0/0

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface GigabitEthernet 0/1

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface GigabitEthernet 0/2

switchport access vlan 10

interface VLAN 100

ip address 192.168.1.3 255.255.255.0

2.4 SW4设备配置并配置erps owner

注意：RPL owner节点，此节点接口指定的接口为阻塞状态

hostname SW4

erps enable //使能ERPS环功能

erps raps-vlan 4094

ring-port west GigabitEthernet 0/1 east GigabitEthernet 0/0 //配置erps环西向和东向接口

rpl-port east rpl-owner //配置东向端口为erps owner，这样会阻塞东向端口

state enable

vlan 10

name YW

vlan 100

name GuanLi

interface GigabitEthernet 0/0

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface GigabitEthernet 0/1

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

interface VLAN 10

description YW

ip address 192.168.2.254 255.255.255.0

interface VLAN 100

description GuanLi

ip address 192.168.1.254 255.255.255.0

三设备状态查看

总结：状态查看（ERPS默认全部为idle状态，除了SW4东向端口为Block状态，其余端口均为Forwarding）

3.1 SW1状态查看

SW1#sh erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/0 (Forwarding)

East Port : Gi0/1 (Forwarding)

RPL Port : None

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : idle

Associate R-APS VLAN :

SW1#

3.2 SW2状态查看

SW2#sh erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/0 (Forwarding)

East Port : Gi0/1 (Forwarding)

RPL Port : None

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : idle

Associate R-APS VLAN :

SW2#

3.3 SW3状态查看

SW3#show erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/1 (Forwarding)

East Port : Gi0/0 (Forwarding)

RPL Port : East Port

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : idle

Associate R-APS VLAN :

SW3#

3.4 SW4状态查看

SW4#show erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/1 (Forwarding)

East Port : Gi0/0 (Blocking)

RPL Port : East Port

Protected VLANs : ALL

RPL Owner : Enabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : idle

Associate R-APS VLAN :

SW4#

3.5 业务测试正常

截图略

四 SW4 shutdown 阻塞接口Gi0/0，然后测试业务与状态

4.1 SW4关闭0/0阻塞端口

SW4(config)#int g0/0

SW4(config-if-GigabitEthernet 0/0)#

SW4(config-if-GigabitEthernet 0/0)#shutdown

SW4(config-if-GigabitEthernet 0/0)#

*Dec 18 14:27:18: %ERPS-5-TOPOLOGY_CHANGE: Link state changed for R-APS VLAN 4094, The interface GigabitEthernet 0/0 changed link state from normal to fail

SW4(config-if-GigabitEthernet 0/0)#SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:27:18: %ERPS-5-TOPOLOGY_CHANGE: Topology changed for R-APS VLAN 4094, The ring changed state from idle to protection

SW4(config-if-GigabitEthernet 0/0)#

SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:27:20: %LINK-5-CHANGED: Interface GigabitEthernet 0/0, changed state to administratively down.

SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:27:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet 0/0, changed state to down.

SW4(config-if-GigabitEthernet 0/0)#

SW4(config-if-GigabitEthernet 0/0)#sh this

Building configuration...

shutdown

switchport mode trunk

switchport trunk allowed vlan only 10,100,4094

End

4.2 测试业务正常并且没有任何丢包

截图略

4.3 ERPS状态查看（EPRS状态变成了protection状态)

4.3.1 SW1状态-状态变成了protection状态

SW1#*Dec 18 14:27:18: %ERPS-5-TOPOLOGY_CHANGE: Topology changed for R-APS VLAN 4094, The ring changed state from idle to protection

SW1#

SW1#sh erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/0 (Forwarding)

East Port : Gi0/1 (Forwarding)

RPL Port : None

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : protection

Associate R-APS VLAN :

SW1#

4.3.2 SW2状态-状态变成了protection状态

SW2#*Dec 18 14:27:19: %ERPS-5-TOPOLOGY_CHANGE: Topology changed for R-APS VLAN 4094, The ring changed state from idle to protection

SW2#

SW2#sh erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/0 (Forwarding)

East Port : Gi0/1 (Forwarding)

RPL Port : None

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : protection

Associate R-APS VLAN :

SW2#

4.3.3 SW3状态-状态变成了protection状态

SW3#*Dec 18 14:27:18: %ERPS-5-TOPOLOGY_CHANGE: Topology changed for R-APS VLAN 4094, The ring changed state from idle to protection

SW3#

SW3#show erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/1 (Forwarding)

East Port : Gi0/0 (Forwarding)

RPL Port : East Port

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : protection

Associate R-APS VLAN :

SW3#

4.3.4 SW4状态-状态变成了protection状态

SW4#show erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/1 (Forwarding)

East Port : Gi0/0 (Link Failure)

RPL Port : East Port

Protected VLANs : ALL

RPL Owner : Enabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : protection

Associate R-APS VLAN :

SW4#

五 SW4 no shutdown 阻塞接口Gi0/0，然后测试业务与状态

5.1 SW4 no shutdown 阻塞接口

SW4(config)#int g0/0

SW4(config-if-GigabitEthernet 0/0)#no shutdown

SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:32:34: %ERPS-5-TOPOLOGY_CHANGE: Link state changed for R-APS VLAN 4094, The interface GigabitEthernet 0/0 changed link state from fail to normal

SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:32:34: %LLDP-4-CREATEREM: Port GigabitEthernet 0/0 created one new neighbor, Chassis ID is 5000.0003.0001, Port ID is Gi0/0.

SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:32:36: %LINK-3-UPDOWN: Interface GigabitEthernet 0/0, changed state to up.

SW4(config-if-GigabitEthernet 0/0)#*Dec 18 14:32:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet 0/0, changed state to up.

SW4(config-if-GigabitEthernet 0/0)#

5.2 业务测试正常并且没有任何丢包

截图略

5.3 erps状态切换需等待2分钟回切

erps状态等待2分钟才切换为idle状态，因为默认WTR Time 时间为2 minutes

SW1#show erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/0 (Forwarding)

East Port : Gi0/1 (Forwarding)

RPL Port : None

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : protection

Associate R-APS VLAN :

SW1#

SW1#*Dec 18 14:34:36: %ERPS-5-TOPOLOGY_CHANGE: Topology changed for R-APS VLAN 4094, The ring changed state from protection to idle

SW1#

SW1#show erps

ERPS Information

Global Status : Enabled

Link monitored by : Not Oam

-------------------------------------------

R-APS VLAN : 4094

Ring Status : Enabled

West Port : Gi0/0 (Forwarding)

East Port : Gi0/1 (Forwarding)

RPL Port : None

Protected VLANs : ALL

RPL Owner : Disabled

Holdoff Time : 0 milliseconds

Guard Time : 500 milliseconds

WTR Time : 2 minutes

Current Ring State : idle

Associate R-APS VLAN :

SW1#

DAMO开发者矩阵

DAMO开发者矩阵，由阿里巴巴达摩院和中国互联网协会联合发起，致力于探讨最前沿的技术趋势与应用成果，搭建高质量的交流与分享平台，推动技术创新与产业应用链接，围绕“人工智能与新型计算”构建开放共享的开发者生态。

更多推荐

人形机器人开源生态：OpenAI的ROSA框架与特斯拉专利开放对比

DAMO开发者矩阵

人形机器人伦理：阿西莫夫法则、性别争议及人形机器人自杀事件的法律定性（下）

DAMO开发者矩阵

VLAN基础实验1：VLAN基础配置

摘要：实验通过S1、S2两台交换机搭建VLAN网络，划分VLAN10/20/30/40并配置Access/Trunk端口。验证显示：同VLAN（如PC-1与PC-2）可二层互通，不同VLAN（如PC-1与PC-3）需三层路由通信。Trunk端口（E0/0/5）实现跨交换机VLAN透传。关键命令包括display vlan、display port vlan等，用于检查配置与故障排查。实验重点演示