Guest

Cisco 3600 Series Multiservice Platforms

Field Notice: Cisco 3620 Support for ATM OC-3, T3/E3, T1/E1 IMA Network Modules


Revised March 5, 2002

May 3, 1999


Products Affected

Product

Remarks

Cisco 3620

Cisco 3620 with AC power supply.

Cisco 3620-DC

Cisco 3620 with DC power supply.

Cisco 3620-RPS

Cisco 3620 for use with external Redundant Power Supply (RPS).

Problem Description

The Cisco 3620 must have a minimum hardware level in order to support the ATM OC-3 and ATM T1/E1 IMA Network Modules:

  • NM-1A-OC3MM Single port ATM OC-3 Multimode network module (up to 2 km)

  • NM-1A-OC3SMI Single port ATM OC-3 Single mode intermediate reach network module (up to 15 km)

  • NM-1A-OC3SML Single port ATM OC-3 Single mode long reach network module (up to 45 km)

  • NM-1A-OC3SMI-1V Single port ATM OC-3 Single mode intermediate reach network module with CES (up to 15 km)

  • NM-1A-OC3SML-1V Single port ATM OC-3 Single mode long reach network module with CES (up to 45 km)

  • NM-1A-OC3MM-1V Single port ATM OC-3 Multimode network module with CES (up to 2 km)

  • NM-1A-E3 Single port ATM E3 Network Module

  • NM-1A-T3 Single port ATM T3 Network Module

  • NM-4E1-IMA 4-port E1 ATM network module with Inverse Multiplexing over ATM

  • NM-4T1-IMA 4-port T1 ATM network module with Inverse Multiplexing over ATM

  • NM-8E1-IMA 8-port E1 ATM network module with Inverse Multiplexing over ATM

  • NM-8T1-IMA 8-port T1 ATM network module with Inverse Multiplexing over ATM

This problem does not affect the 3640 or 3660.

This problem does not affect the NM-1ATM-25 ATM 25 Network Module.

Background

The ATM Segmentation And Reassembly (SAR) used on the ATM OC-3, ATM T3/E3, and ATM T1/E1 IMA Network Modules is incompatible with the PCMCIA controller used in Cisco 3620 routers manufactured before April 15, 1999. In the 3620, the ATM SAR and the PCMCIA controller attach to the same PCI bus. The ATM SAR issues PCI commands that may hang the PCMCIA controller.

Problem Symptoms

Cisco IOS® software checks the version of the PCMCIA controller in the 3620. If the version does not support use with the ATM OC-3, ATM T3/E3, or ATM T1/E1 IMA Network Modules, the 3620 generates an error at boot time:

%ATMOC3-1-PCMCIA The ATM Network Module in slot x is incompatible with the PCMCIA controller installed in the router.

Workaround/Solution

In order to support the ATM OC-3, ATM T3/E3, and ATM T1/E1 IMA Network Modules, you must have a minimum revision of the 3620. If ATM OC-3, ATM T3/E3, or ATM T1/E1 IMA support is required, you must RMA the 3620 chassis.

DDTS

This defect has Cisco bug ID CSCdk69671. If you are a registered user and you have logged in, a link to view detailed bug information appears below.

DDTS

Description

CSCdk69671 (registered customers only)

ATM OC-3 Network Modules Require Minimum Version of 3620

How To Identify Hardware Levels

You can identify the version of PCMCIA controller in the 3620 using the show pci hardware command (this command must be entered in enable mode), or by examining the part number on the motherboard.

Cisco 3620 PCMCIA Controller Versions

Do Not Support ATM OC-3, ATM T3/E3, T1/E1 IMA Network Modules

Support ATM OC-3, ATM T3/E3, T1/E1 IMA Network Modules

PCMCIA controller version

0x22, 0xE2

0x20, 0xE0

Motherboard version

73-1850-10 and earlier (last two digits <= 10)

73-1850-11 and later (last two digits >= 11)

Router#show pci hardware

CLPD6729 registers:
 (0x00) Chip Revision = 0x82
 (0x1E) Misc Control 2 = 0x08
 (0x1F) Chip Information = 0xE2

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.