Configure Back to Back G.SHDSL Connection in CO-CPE Setup

Introduction

This document describes the configuration steps required in order to implement a back-to-back Multirate Symmetric High-Speed Digital Subscriber Line (G.SHDSL) connection between two EHWIC-4SHDSL-EA modules.

You must configure one end of the connection in Central Office (CO) mode and the other end in Customer Premises Equipment (CPE) mode in order to bring up the SHDSL connection. This kind of a back-to-back SHDSL connection set up is commonly implemented within a campus network in order to provide the connectivity between two buildings without the need for a Digital Subscriber Line Access Multiplexer (DSLAM) in between the two DSL Routers.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

• EHWIC-4SHDSL-EA module
• Fixed Integrated Service Router (ISR) G2 routers like C888EA-K9 work in both CO and CPE modes with Cisco IOS® Software 15.2(2)T2 and later releases

Components Used

This document is not restricted to specific software and hardware versions.

However, the set up is built with these devices:

• Two ISR Generation-2 routers (CISCO2901/K9) loaded with Cisco IOS® 15.4.3M2
• Two EHWIC-4SHDSL-EA modules installed on both ISR G2 routers
• ANSI/TIA/EIA-568-B cable with RJ-45 connectors at either ends

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Configure

In this set up, you will use identical routers with EHWIC-4SHDSL-EA modules installed on them. The device named CO_Router has the SHDSL controller configured in order to operate in CO mode, while the device named CPE_Router has the SHDSL controller configured in order to operate in CPE mode.

The EHWIC-4SHDSL-EA module can be configured for both Ethernet in the First Mile (EFM) and Asynchronous Transfer Mode (ATM). This document explains how to set up back-to-back SHDSL connection in both EFM and ATM modes.

The example here shows how to set up back-to-back SHDSL connection in ATM mode.

ATM Mode

You can implement either IP over ATM (IPoA) or PPP over ATM (PPPoA) solution when you configure back-to-back SHDSL connection.

1. IPoA Solution

• CO Router:

CO_Router#show running-config
Building configuration...

Current configuration : 1624 bytes
!

!
version 15.4
service config
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CO_Router
!
boot-start-marker
boot system flash:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
!
!
!
no aaa new-model
!
!

!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!         
cts logging verbose
!
!
license udi pid CISCO2901/K9 sn FGL1622241N
license boot module c2900 technology-package securityk9
license boot module c2900 technology-package datak9
!
redundancy
!
!
!
controller SHDSL 0/1/0
 termination co
 dsl-group 0 pairs  0, 1, 2, 3 m-pair
 !

!
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address dhcp
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface ATM0/1/0
 ip address 1.1.1.1 255.255.255.0
 no atm ilmi-keepalive
 pvc 1/10 
 !
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!

control-plane
!
!
line con 0
line aux 0
line vty 0 4
 login
 transport input all
!
!
end

CO_Router#  

• CPE Router:

CPE_Router#show running-config
Building configuration...


Current configuration : 1538 bytes
!

version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CPE_Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
ip cef
!
!

!
no ipv6 cef
!
multilink bundle-name authenticated
!

!
!
voice-card 0
!

!
!         
!
license udi pid CISCO2901/K9 sn FGL151625KN
license boot module c2900 technology-package securityk9
license boot module c2900 technology-package uck9
license boot module c2900 technology-package datak9
!
!
!
redundancy

!
controller SHDSL 0/1/0
 dsl-group 0 pairs  0, 1, 2, 3 m-pair
 !


!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 ip address dhcp
 duplex auto
 speed auto
!
interface ATM0/1/0
 ip address 1.1.1.2 255.255.255.0
 no atm ilmi-keepalive
 pvc 1/10 
 !
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
!
control-plane
!
!
gatekeeper
 shutdown
!
!
!
line con 0
line aux 0
line vty 0 4
 login
 transport input all

!
end

CPE_Router# 

2. PPPoA Solution

• CO Router:

CO_Router#show running-config 
Building configuration...

Current configuration : 1779 bytes
!

!
version 15.4
service config
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CO_Router
!
boot-start-marker
boot system flash:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
!
!
!
no aaa new-model
!

!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!         
cts logging verbose
!
!
license udi pid CISCO2901/K9 sn FGL1622241N
license boot module c2900 technology-package securityk9
license boot module c2900 technology-package datak9
!

!
redundancy
!
!
controller SHDSL 0/1/0
 termination co
 dsl-group 0 pairs  0, 1, 2, 3 m-pair
 !
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address dhcp
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface ATM0/1/0
 no ip address
 no atm ilmi-keepalive
 pvc 1/10 
  encapsulation aal5snap
  protocol ppp dialer
  dialer pool-member 1
 !
!
interface Dialer1
 ip address 1.1.1.1 255.255.255.0
 encapsulation ppp
 dialer pool 1
 dialer-group 1
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!

!
!
control-plane
!
!
!
line con 0
line aux 0
line vty 0 4
 login
 transport input all

!
end

CO_Router# 

• CPE Router:

CPE_Router#show running-config 
Building configuration...


Current configuration : 1693 bytes
!

version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CPE_Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
ip cef
!

!
no ipv6 cef
!
multilink bundle-name authenticated
!

!         
!
license udi pid CISCO2901/K9 sn FGL151625KN
license boot module c2900 technology-package securityk9
license boot module c2900 technology-package uck9
license boot module c2900 technology-package datak9
!
!
!
redundancy
!
!
controller SHDSL 0/1/0
 dsl-group 0 pairs  0, 1, 2, 3 m-pair
 !
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 ip address dhcp
 duplex auto
 speed auto
!
interface ATM0/1/0
 no ip address
 no atm ilmi-keepalive
 pvc 1/10 
  encapsulation aal5snap
  protocol ppp dialer
  dialer pool-member 1
 !
!
interface Dialer1
 ip address 1.1.1.2 255.255.255.0
 encapsulation ppp
 dialer pool 1
 dialer-group 1
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
control-plane
!
gatekeeper
 shutdown
!
line con 0
line aux 0
line vty 0 4
 login
 transport input all

!
end

CPE_Router#

3. PPPoE over ATM Solution

• CO Router:

CO_Router#show running-configuration  
Building configuration...


Current configuration : 2299 bytes
!

version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CO_Router
!
boot-start-marker
boot-end-marker
!

no aaa new-model
!

username cisco password 0 cisco
!
redundancy
!
!
controller SHDSL 0/1/0
termination co
 dsl-group 0 pairs  0, 1, 2, 3 m-pair
 !
!

bba-group pppoe global
 virtual-template 1
!
!
interface Loopback0
 ip address 10.1.1.1 255.255.255.255
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto

!
interface GigabitEthernet0/1
 no ip address 
 shutdown
 duplex auto
 speed auto
!

!
interface ATM0/1/0
 no ip address
 no atm ilmi-keepalive
!
interface ATM0/1/0.1 point-to-point
 pvc 1/100 
  protocol pppoe group global
 !
!
interface Virtual-Template1
 ip unnumbered Loopback0
 ip mtu 1492
 peer default ip address pool PPPOE
!
!
ip local pool PPPOE 10.1.1.2 10.1.1.254

!
line con 0
line aux 0
line vty 0 4
 login
 transport input all

end

CO_Router#

Verification:

CO_Router#show caller ip
  Line           User       IP Address      Local Number    Remote Number   <->
  Vi1.1          -          10.1.1.2        -               -               in 
CO_Router#

• CPE Router:

CPE_Router#show running-config 
Building configuration...


Current configuration : 2554 bytes
!
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CPE_Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!

ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
controller SHDSL 0/1/0
dsl-group 0 pairs  0, 1, 2, 3 m-pair
 !
!

!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address dhcp
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address 
 duplex auto
 speed auto
!
interface GigabitEthernet0/2
 ip address dhcp
 duplex auto
 speed auto
!
interface ATM0/1/0
 no ip address
 no atm ilmi-keepalive
!
interface ATM0/1/0.1 point-to-point
 pvc 1/100 
  pppoe-client dial-pool-number 1
 !
!
interface Dialer1
 ip address negotiated
 encapsulation ppp
 dialer pool 1
 ppp chap hostname cisco
 ppp chap password 0 cisco
!
!

!
control-plane
!
 !
 
line con 0
line aux 0
line vty 0 4
 login
 transport input all
!
!
end

CPE_Router#


Verification:

CPE_Router#show ip interface brief
Interface                  IP-Address      OK? Method Status                Protocol
Embedded-Service-Engine0/0 unassigned      YES NVRAM  administratively down down    
ATM0/1/0                   unassigned      YES unset  up                    up      
ATM0/1/0.1                 unassigned      YES unset  up                    up      
Dialer1                    10.1.1.2        YES IPCP   up                    up      
Virtual-Access1            unassigned      YES unset  up                    up      
CPE_Router#

EFM Mode

You can implement either IPoE or PPPoE solution when you configure back-to-back SHDSL connection.

1. IPoE Solution

• CO Router:

CO_Router#show running-config 
Building configuration...


Current configuration : 2194 bytes
!
! Last configuration change at 14:56:53 UTC Thu Mar 10 2016
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CO_Router
!
boot-start-marker
boot system flash:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
!


!
ip cef
no ipv6 cef
multilink bundle-name authenticated
!

!
cts logging verbose
!
        
!
redundancy
!

!
controller SHDSL 0/3/0
 termination co
 mode efm
 dsl-group 0 pairs  0, 1, 2, 3 efm-bond
 !

!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 no ip address 
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!
!
interface Ethernet0/3/0
 ip address 1.1.1.1 255.255.255.252
!
!         
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!

!
control-plane
!

gatekeeper
 shutdown
!

line con 0
line aux 0
line vty 0 4
 login
 transport input all
!
scheduler allocate 20000 1000
!
end

CO_Router#

• CPE Router:

CPE_Router#show running-config 
Building configuration...

Current configuration : 1646 bytes
!
! Last configuration change at 14:50:55 UTC Thu Mar 10 2016
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CPE_Router
!
boot-start-marker
boot system flash:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
!
!
no aaa new-model
!

ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
        
cts logging verbose
!

redundancy
!

controller SHDSL 0/3/0
 mode efm
 dsl-group 0 pairs  0, 1, 2, 3 efm-bond
 !

!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address dhcp
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!
interface Ethernet0/3/0
 ip address 1.1.1.2 255.255.255.252
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!

control-plane
!

line con 0
line aux 0
line vty 0 4
 login
 transport input all
!
scheduler allocate 20000 1000
!
end

CPE_Router#

2. PPPoE Solution

• CO Router:

CO_Router#show running-config 
Building configuration...

Current configuration : 1851 bytes
!
! Last configuration change at 15:00:06 UTC Thu Mar 10 2016
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CO_Router
!
boot-start-marker
boot system flash:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
!

ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
        
cts logging verbose
!

controller SHDSL 0/3/0
 mode efm
 dsl-group 0 pairs  0, 1, 2, 3 efm-bond
 !

bba-group pppoe global
 virtual-template 1
!
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 ip address dhcp
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!
interface Ethernet0/3/0
 ip address 1.1.1.2 255.255.255.252
 pppoe enable group global
!
interface Virtual-Template1
 mtu 1492
 ip unnumbered Ethernet0/3/0
 peer default ip address pool PPPOE
!
!
ip local pool PPPOE 1.1.1.1

!
no ip http server
no ip http secure-server
!

control-plane
!

line con 0
line aux 0
line vty 0 4
 login    
 transport input all
!
scheduler allocate 20000 1000
!
end

CO_Router#  

• CPE Router:

CPE_Router#show running-config 
Building configuration...


Current configuration : 2310 bytes
!
! Last configuration change at 15:10:04 UTC Thu Mar 10 2016
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname CPE_Router
!
boot-start-marker
boot system flash:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
!
!
ip cef
no ipv6 cef
multilink bundle-name authenticated
!
!
!         
!
!
!
cts logging verbose
!
!
voice-card 0
!
!
!
!         
!
redundancy
!
controller SHDSL 0/3/0
 termination co
 mode efm
 dsl-group 0 pairs  0, 1, 2, 3 efm-bond
 !
!
!
!
!
!
interface Embedded-Service-Engine0/0
 no ip address
 shutdown
!
interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!

!
interface Ethernet0/3/0
 no ip address
 pppoe enable group global
 pppoe-client dial-pool-number 1
!
interface Dialer1
 ip address negotiated
 encapsulation ppp
 dialer pool 1
!
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!

!
!
!
!
control-plane
!
 !
 !
!
gatekeeper
 shutdown
!
!
!
line con 0
line aux 0
line vty 0 4
 login
 transport input all
!
scheduler allocate 20000 1000
!
end

CPE_Router#  

Verify

Use this section in order to confirm that your configuration works properly.

1. In order to verify that the router is in CO mode, run show command. The CO termination line in the output (bold in the example) indicates that the router is in CO mode. The default mode would be CPE. Some of the output does not appear here, for brevity.

CO# show controllers shdSL 0/1/0

Controller SHDSL 0/1/0 is UP

Hardware is EHWIC-4SHDSL-EA, rev 0 on slot 0, hwic slot 1

Capabilities: EFM: 2-wire, EFM-Bond, Annex A, B, F & G

ATM: 2-wire, Mpair, IMA, Annex A, B, F & G

• CO termination:

cdb=0x3CF085F0, plugin=0x21C33C1C, ds=0x21C33C68 base=0x10200000

FPGA Version is A14

NPU Source: System

NPU Firmware version: SHDSL_EA_FW_20130116053038

Vendor: Infineon, Chipset: SOCRATES-4e

PHY Source: System

IDC Firmware version: 1.7.5.0

DFE Firmware version: 1.1-1.7.5__002

Firmware reload mode: Auto

 

<Output abbreviated due to space constraints>

2. For EFM mode, run show controllers ethernet command for verification.

3. For ATM mode, run show controllers atm command for verification.

Troubleshoot

There is currently no specific troubleshooting information available for this configuration.

Related Information

• For detailed information on troubleshooting SHDSL connections, refer to Configuring Cisco G.SHDSL EFM/ATM EHWICs in Cisco Routers
• For PPP related troubleshooting, refer to PPP Troubleshooting Flowchart
• Technical Support & Documentation - Cisco Systems