Document ID: 12864
This document shows how to display and change the VPI/VCI values for the Cisco 675 Customer Premises Equipment (CPE).
There are no specific requirements for this document.
This document is not restricted to specific software and hardware versions.
Refer to Cisco Technical Tips Conventions for more information on document conventions.
The default values are VPI=1 and VCI=1, and these settings much match the values configured on the Internet Service Provider's digital subscriber line access multiplexer (DSLAM) on the subscriber side.
Note: Not all versions of the Cisco 675 software have a default of VPI=1 and VCI=1. Also, in Cisco Broadband Operating System (CBOS) version 2.3 or earlier, the VPI count is 1 to 4. In later versions, the VPI count is 1 to 8. Upgrade to release 2.3.9 or later if you have problems configuring the VPI/VCI values. The valid ranges for VPI and VCI addresses are shown in this table:
|VPI <count>||VPI Range||VCI Range|
In order to display the current VPI/VCI values for the Cisco 675:
cbos#show int wan0-0 WAN0-0 ATM Logical Port PVC (VPI 1, VCI 1) is open. !--- the default value of 1/1 ScalaRate set at 1088 Kbps AAL 5 UBR Traffic PPP LCP State: Opened PPP NCP State (IP Routing): Opened PPP MRU: 2048 HDLC Framing: disabled MPOA Mode: VC Mux PPP Login: cisco Authentication Type: Autodetecting/PAP RADIUS: disabled PPP Tx: 145866 Rx: 145776 Dest IP: 10.1.1.1 Dest Mask: 255.255.255.255 IP Port Enabled
In order to change the VPI/VCI values, complete these steps:
Shut down the WAN0-0 interface.
cbos#set int wan0-0 close Closing connection wan0-0
Verify that the interface is shut down.
cbos#show int wan0-0 WAN0-0 ATM Logical Port PVC (VPI 1, VCI 1) is configured. !--- note that it does not say "is open" ScalaRate set at 1088 Kbps AAL 5 UBR Traffic IP Port Enabled
Change the values.
cbos#set int wan0-0 vpi 2 !--- new value Change completed. cbos#set int wan0-0 vci 34 !--- new value Change completed. cbos#set int wan0-0 open !--- opens the WAN interface
Verify the changes.
cbos#show int wan0-0 WAN0-0 ATM Logical Port PVC (VPI 2, VCI 34) is configured. !--- new values (will not !--- be in open state until a reboot) ScalaRate set at 1088 Kbps AAL 5 UBR Traffic IP Port Enabled cbos#show run [[ PPP Device Driver = Section Start ]] PPP Port User Name = 00, tito PPP Port User Password = 00, dayans [[ IP Routing = Section Start ]] IP Port Address = 00, 10.1.1.2 [[ CBOS = Section Start ]] NSOS Prompt = 4/33 NSOS Serial More = 20 [[ ATM WAN Device Driver = Section Start ]] ATM WAN Virtual Connection Parms = 00, 2, 34, 0 !--- new values
Issue write and reboot commands to the Cisco 675.
cbos#write NVRAM written. cbos#reboot Hello! Expanding CBOS image... CBOS v2.2.0.000
Note: The WAN0-0 interface was closed before the VPI/VCI values were changed. For it to be functional, you need to open it. When both the write and reboot commands are issued on the Cisco 675, the WAN0-0 interface is automatically opened.
- Cisco 675 Frequently Asked Questions
- Asymmetric Digital Subscriber Line (ADSL) Support Page
- Using the Command Line Interface
- Technical Support & Documentation - Cisco Systems
|Updated: Jun 01, 2005||Document ID: 12864|