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CE dual-homing access network design VPWS&ERPS Highlighted

Latest reply: Dec 19, 2018 08:31:29 1382 3 10 0 2

Good day, everyone!


This post talks about CE dual-homing access network design VPWS&ERPS. Please see more details displayed below.


BACKGROUND


In this scene, CE is used AR2240C, PE is used NE20E-S2F. CE1 connects to two PE, CE2 connects to two PE. There, we need to deploy two VPWS tunnels between CE1 and CE2.


For example CE1 connects with PE1 and PE2, while CE2 connects with PE3 and PE4. The topology is as per below figure.


Figure 1-1. VPWS scenarios 3 network topology

085507vczyp3lktorpgoyj.jpg


In this scenario, CE1 and CE2 just like connect through two Ethernet links, it is a ring, it need to configure the ring network protocol. In this case, we suggest deploy the ERPS. ERPS is a protocol defined by the International Telecommunication Union - Telecommunication Standardization Sector (ITU-T) to eliminate loops at Layer 2. It can interconnect with other Non-Huawei devices, and the convergence speed is faster than STP.

The ERPS design is as per below figure.


Figure 1-2. VPWS Scenarios 3 ERPS topology

085523h2evv8em9hes2qgg.jpg


As shown in figure above, we can configure two ring on the CE1 and CE2. Some service VLAN belong to ring 1 and the other service VLAN can belong to ring 2, so the two link can work at same time.


For this VPWS scenario, we can refer to these steps to deploy scenario 3 as per below:


  • configure the VPWS tunnel between the PE1 and PE3, PE2 and PE4;


  •  configure the ERPS on the CE1 and CE2.


The PE configuration template is as below - the PE1 remote peer is PE3 and the PE2 remote peer is PE4. The below the configuration template shows PE1 and PE3; PE2 and PE4 configuration is similar.


Figure 1-3. VPWS scenario 3 PE1 configuration example

#

mpls l2vpn

mpls

#

mpls ldp remote-peer 10.0.0.3                                                    

 remote-ip 10.0.0.3                                                             

#                                                                                

interface GigabitEthernet 1/1/0.1000                                                

 vlan-type dot1q 1000                                                             

 mpls l2vc 10.0.0.3 1000 control-word                                                  

#

interface GigabitEthernet 1/1/0.1001                                                

 vlan-type dot1q 1001                                                             

 mpls l2vc 10.0.0.3 1001 control-word                                                  

#  

commit

#


Figure 1-4. VPWS scenario 3 PE3 configuration example

#

mpls l2vpn

mpls

#

mpls ldp remote-peer 10.0.0.1                                                      

 remote-ip 10.0.0.1                                                              

#                                                                                

interface GigabitEthernet 0/3/4.1000                                                

 vlan-type dot1q 1000                                                             

 mpls l2vc 10.0.0.1 1000 control-word                                                  

#

interface GigabitEthernet 0/3/4.1001                                                

 vlan-type dot1q 1001                                                             

 mpls l2vc 10.0.0.1 1001 control-word                                                  

#  

commit

#


CE needs to configure the VLAN and enable the ERPS; the configuration template is as per below figure.


Figure 1-5. VPWS scenario 3 CE1 configuration example

#

vlan batch 1000 to 1001

#

stp region-configuration

 instance 1 vlan 20 1000

 instance 2 vlan 30 1001

 active   region-configuration

#

erps ring 1

 control-vlan 20

 protected-instance 1

 wtr-timer 6                             

 guard-timer 100

erps ring 2

 control-vlan 30

 protected-instance 2

 wtr-timer 6

 guard-timer 100

#

interface GigabitEthernet1/0/0

 portswitch

 port link-type trunk

 port trunk allow-pass   vlan 20 30 1000 to 1001

 stp disable

 erps ring 1 rpl owner

 erps ring 2

#

interface GigabitEthernet3/0/0

 portswitch

 port link-type trunk

 port trunk allow-pass   vlan 20 30 1000 to 1001

 stp disable

 erps ring 1

 erps ring 2 rpl owner

#


Figure 1-6. VPWS scenario 3 CE2 configuration example

#

vlan batch 1000 to 1001

#

stp region-configuration

 instance 1 vlan 20 1000

 instance 2 vlan 30 1001

 active   region-configuration

#

erps ring 1

 control-vlan 20

 protected-instance 1

 wtr-timer 6                             

 guard-timer 100

erps ring 2

 control-vlan 30

 protected-instance 2

 wtr-timer 6

 guard-timer 100

#

interface GigabitEthernet1/0/0

 portswitch

 port link-type trunk

 port trunk allow-pass   vlan 20 30 1000 to 1001

 stp disable

 erps ring 1

 erps ring 2

#

interface GigabitEthernet3/0/0

 portswitch

 port link-type trunk

 port trunk allow-pass   vlan 20 30 1000 to 1001

 stp disable

 erps ring 1

 erps ring 2

#

  • x
  • convention:

Mysterious.color
Created Dec 12, 2018 06:48:06

very clear and useful
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  • x
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Hawasli
Created Dec 12, 2018 12:43:37

Its hard
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  • x
  • convention:

4am
Created Dec 19, 2018 08:31:29

In common scenarios, I can also try to deploy
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  • x
  • convention:

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