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Cisco 6000 Series IP DSL Switches

Configuring Two Cisco 827 Routers With RFC1483 Routing IP (encap aal5snap)

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Document ID: 12900


Contents

Introduction
Before You Begin
      Conventions
      Prerequisites
      Components Used
Configure
      Network Diagram
      Configurations
Verify
Troubleshoot
Related Information

Introduction

This sample configuration shows a Cisco 6400 Universal Access Concentrator (UAC) with two node route processors (NRPs) installed.

Each NRP has a Cisco 827 Digital Subscriber Line (DSL) Router terminating on it. The Cisco 827 routers pass traffic to each other across a permanent virtual circuit (PVC) configured between the NRPs.

An end-to-end configuration includes a Cisco 6130 Digital Subscriber Line Access Multiplexer (DSLAM), Cisco 6400 node switch processor (NSP), and a Cisco 6400 NRP.

Before You Begin

Conventions

For more information on document conventions, see the Cisco Technical Tips Conventions.

Prerequisites

There are no specific prerequisites for this document.

Components Used

The information in this document is based on the software and hardware versions below.

  • Cisco 827-4V Customer Premises Equipment (CPE) IOS® Software Release 12.1(1)XB

  • Cisco 6400 UAC-NRP IOS Software Release 12.0(7)DC

  • Cisco 6400 UAC-NSP IOS Software Release 12.0(4)DB

  • Cisco 6130 DSLAM-NI2 IOS Software Release 12.1(1)DA

The information presented in this document was created from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.

Configure

In this section, you are presented with the information to configure the features described in this document.

Note: To find additional information on the commands used in this document, use the Command Lookup Tool (registered customers only) .

Network Diagram

This document uses the network setup shown in the diagram below.

827rfc_ip.gif

Configurations

This document uses the configurations shown below.

Cisco 827 (R1)

 
Current configuration: 
! 
version 12.1 
service timestamps debug datetime msec
service timestamps log datetime msec
! 
hostname R1
! 
ip subnet-zero 
! 
interface Ethernet0 
 ip address 172.18.0.1 255.255.0.0 
 no ip directed-broadcast 
! 
interface ATM0 
 ip address 172.16.0.1 255.255.0.0
 no ip directed-broadcast 
 no atm ilmi-keepalive 
 pvc 3/100 
  protocol ip 172.16.0.2 
  encapsulation aal5snap 
 ! 
 bundle-enable 
 hold-queue 224 in 
! 
ip classless 
ip route 0.0.0.0 0.0.0.0 172.16.0.2 
! 
voice-port 1 
 timing hookflash-in 0 
! 
voice-port 2 
 timing hookflash-in 0 
! 
voice-port 3 
 timing hookflash-in 0 
! 
voice-port 4 
 timing hookflash-in 0 
! 
end

Cisco 827 (R2)

 
Current configuration:
! 
version 12.1 
service timestamps debug datetime msec 
service timestamps log datetime msec 
! 
hostname R2 
! 
ip subnet-zero 
! 
interface Ethernet0 
 ip address 172.19.0.1 255.255.0.0 
 no ip directed-broadcast 
 no ip mroute-cache 
! 
interface ATM0 
 ip address 172.17.0.1 255.255.0.0 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
 pvc 4/100 
  protocol ip 172.17.0.2 
  encapsulation aal5snap 
 ! 
 bundle-enable 
 hold-queue 224 in 
! 
ip classless 
ip route 0.0.0.0 0.0.0.0 172.17.0.2 
! 
voice-port 1 
 timing hookflash-in 0 
! 
voice-port 2 
 timing hookflash-in 0 
! 
voice-port 3 
 timing hookflash-in 0 
! 
voice-port 4 
 timing hookflash-in 0 
! 
end

Cisco 6130 DSLAM

 
Current configuration: 
! 
version 12.1 
service timestamps debug datetime msec 
service timestamps log datetime msec 
hostname DSLAM
! 
slot 1 ATUC-1-4DMT 
slot 2 ATUC-4FLEXIDMT 
slot 13 ATUC-4FLEXIDMT 
! 
dsl-profile default 
 dmt training-mode quick 
! 
atm address 47.0091.8100.0000.0075.2b3f.4d01.0075.2b3f.4d01.00 
atm router pnni 
 node 1 level 56 lowest 
  redistribute atm-static 
! 
interface ATM0/0 
 no ip address 
 atm cac service-category abr deny 
 atm maxvp-number 0 
 atm maxvc-number 4096 
 atm maxvci-bits 12 
! 
interface Ethernet0/0 
  no ip route-cache 
! 
interface ATM0/1 
 no ip address 
 atm ilmi-keepalive 
! 
interface ATM0/2 
 no ip address 
 no atm ilmi-keepalive 
! 
interface ATM1/1 
 no ip address 
 no atm ilmi-keepalive 
! 
interface ATM1/2 
 no ip address 
 no atm ilmi-keepalive 
! 
interface ATM1/3 
 no ip address 
 no atm ilmi-keepalive 
 atm pvc 3 100 interface ATM0/1 3 100 
! 
interface ATM1/4 
 no ip address 
 no atm ilmi-keepalive 
 atm pvc 4 100 interface ATM0/1 4 100 
! 
ip classless
! 
end

Cisco 6400-NSP

 
Current configuration: 
! 
version 12.0 
service timestamps debug datetime msec 
service timestamps log datetime msec
! 
hostname NSP 
! 
interface ATM0/0/0 
 no ip address 
 no ip directed-broadcast 
 atm maxvp-number 0 
! 
interface Ethernet0/0/0 
 no ip directed-broadcast 
! 
interface ATM1/0/0 
 no ip address 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
! 
interface ATM2/0/0 no ip address 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
 atm pvc 1 999 interface ATM1/0/0 2 999 
 
!--- Routes incoming traffic from interface ATM2/0/0 
 !--- with pvc 1 999 and sends it out on ATM1/0/0 using      
 !--- pvc 2 999. The opposite is true if the incoming 
 !--- traffic is from ATM1/0/0 with a pvc 2 999.
 !--- It would go to ATM2/0/0 with pvc 1 999. 
 
! 
interface ATM8/0/0
 no ip address 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
! 
interface ATM8/0/1
 no ip address 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
 atm pvc 3 100  interface  ATM2/0/0 3 100 
 
!--- Routes incoming traffic from interface 
 !--- ATM8/0/1 with pvc 3 100 and sends it out 
 !--- on ATM2/0/0 using same pvc numbers. 

 atm pvc 4 100  interface  ATM1/0/0 4 100 
 
!--- Routes incoming traffic from interface 
 !--- ATM8/0/1 with pvc 4 100 and sends it out 
 !--- on ATM1/0/0 using  same pvc numbers. 
 
! 
ip classless 
! 
end

Cisco 6400-NRP (1)

 
Current configuration: 
! 
version 12.0 
service timestamps debug datetime msec 
service timestamps log datetime msec
! 
hostname NRP1 
! 
interface ATM0/0/0 
 no ip address 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
! 
interface ATM0/0/0.4 point-to-point

!--- Provides termination for the Cisco 827-R2 Router.
 
 ip address 172.17.0.2 255.255.0.0 
 no ip directed-broadcast 
 pvc 4/100 
  protocol ip 172.17.0.1  
  encapsulation aal5snap  ! 
! 
interface ATM0/0/0.999 point-to-point

!--- Links back to 6400-NRP (2).
 
ip address 10.0.0.14 255.0.0.0 
no ip directed-broadcast 
pvc 2/999 
protocol ip 10.0.0.15 
encapsulation aal5snap 
! 
interface Ethernet0/0/1 
 no ip address 
 no ip directed-broadcast 
! 
interface Ethernet0/0/0 
 no ip directed-broadcast
! 
interface FastEthernet0/0/0 
 no ip address 
 no ip directed-broadcast 
 full-duplex 
! 
ip classless 
ip route 172.19.0.1 255.255.255.255 172.17.0.1 
ip route 172.18.0.0 255.255.0.0 10.0.0.15  
ip route 172.16.0.0 255.255.0.0 10.0.0.15  
! 
end

Cisco 6400-NRP (2)

 
Current configuration: 
version 12.0 
service timestamps debug datetime msec 
service timestamps log datetime msec 
! 
hostname NRP2 
! 
interface ATM0/0/0 
 no ip address 
 no ip directed-broadcast 
 no atm ilmi-keepalive 
! 
interface ATM0/0/0.3 point-to-point

!--- Provides termination for the Cisco R1 Router. 

 ip address 172.16.0.2 
 no ip directed-broadcast 
 pvc 3/100 
  protocol ip 172.16.0.1 
  encapsulation aal5snap 
! 
interface ATM0/0/0.888 point-to-point

!--- Links back to the Cisco 6400-NRP (1).
 
 ip address 10.0.0.15 255.0.0.0 
 no ip directed-broadcast 
 pvc 1/999 
  protocol ip 10.0.0.14 
  encapsulation aal5snap 
! 
interface Ethernet0/0/1 
 no ip address 
 no ip directed-broadcast 
! 
interface Ethernet0/0/0 
 no ip directed-broadcast 
! 
interface FastEthernet0/0/0 
 no ip address 
 no ip directed-broadcast 
 shutdown 
! 
ip classless 
ip route 172.19.0.0 255.255.0.0 10.0.0.14 
ip route 172.18.0.1 255.255.255.255 172.16.0.1
ip route 172.17.0.0 255.255.0.0 10.0.0.14
! 
end

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

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

Related Information

Updated: Feb 26, 2008 Document ID: 12900