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Cisco Port Adapters

Field Notice: Mueslix Halts on Cisco 7200 Series Routers


Updated July 25, 2002

April 25, 2002


Products Affected

Product

Top Assembly

Printed Circuit Assembly

Comments

Part Number

Part Number

PA-4T+

800-01838-xx

73-1577-xx

4 Port Serial Port Adapter, Enhanced

PA-8T-V35

800-01836-xx

73-1580-xx

8-Port Serial, V.35 Port Adapter

PA-8T-X21

800-01837-xx

73-1582-xx

8-Port Serial, X.21 Port Adapter

PA-8T-232

800-01835-xx

73-1581-xx

8-Port Serial, 232 Port Adapter

PA-H

800-02747-xx

73-2559-xx

1-Port HSSI Port Adapter

PA-2H

800-03306-xx

73-2914-xx

2-Port HSSI Port Adapter

PA-T3

800-02886-xx

73-2616-xx

1 Port T3 Serial Port Adapter with T3 DSUs

PA-2T3

800-02579-xx

73-2323-xx

2 Port T3 Serial Port Adapter with T3 DSUs

PA-E3

800-00327-xx

73-2620-xx

1 Port E3 Serial Port Adapter with E3 DSU

PA-2E3

800-00327-xx

73-2324-xx

2 Port E3 Serial Port Adapter with E3 DSUs

PA-T3+

800-04678-xx

73-3762-xx

1 Port T3 Serial Port Adapter Enhanced

PA-2T3+

800-04677-xx

73-3761-xx

2 Port T3 Serial Port Adapter Enhanced

PA-2JT2

800-02259-xx

73-2215-xx

2-Port JT2 6.3Mb/s Serial Port Adapter

Problem Description

On a Cisco 7200 Router, when the mueslix serial port adapters are used with a high bandwith port adapter (like ATM) in the same PCI bus, the serial interface may stop functioning when NVRAM is accessed. This can occur when the interface traffic rates reach approximately 50 percent on the serial and high bandwidth interfaces.

Some possible triggers to the problem are:

  • Executing a write memory command when the serial interface is passing traffic.

  • The use certain commands like show version when serial interface is passing traffic.

Background

The problem as described above may occur on port adapters that have a Mueslix ASIC on them. The port adapters listed in the Products Affected section have this Mueslix ASIC. This problem only occurs on the port adapters that are listed in the Affected Products section and does not affect all port adapters. Furthermore, this problem can occur with the NPE-200, NPE-225, NPE-300, NPE-400 and NSE-1 processors on the Cisco 7200VXR Series routers.

Problem Symptoms

If a write memory command, or other command such as show version is executed, these failure symptoms occur:

  1. Mueslix error messages displayed in the logs.

    MUESLIX-1-STARTFAIL/ MUESLIX-1-STOPFAIL
    MUESLIX-1-HALT
    
  2. The interface may flap or go down completely.

Workaround/Solution

The solution to the problem is to upgrade Cisco IOS® Software to one of the releases in the as described in the attached table.

Note: If the problem occurs on the NPE-300, use DDTS CSCdt71082 for resolution. If the problem occurs on the NPE-200, NPE-225, NPE-400 or NSE-1, refer to the DDTS associated with the port adapter installed in the system for resolution.

Bug ID

Description

Applicable Hardware

Major Integrated Releases

CSCdt71082

MUSELIX-HALT on NPE-300 with HSSI/E3/T3 PA

NPE-300

12.1(11), 12.1(11)E, 12.1(11)EC, 12.2(5), 12.2(5)S, 12.2(4)T1, 12.2(8)B, 12.0(20)SP, 12.0(20)ST, 12.0(20)S

CSCdw08302

CSCdt71082 fix is broken in 12.2

PA-4T+, PA-8T

12.2(7), 12.2(8)B, 12.2(7)S, 12.2(7)T

CSCdv67410

MUESLIX-1-HALT on 7200 with HSSI/T3/E3

PA-2H, PA-2T3, PA-2E3

12.0(22)S, 12.0(21)SP, 12.0(21)ST, 12.1(13), 12.1(11)E1, 12.1(11)EC, 12.2(7), 12.2.(8)T, 12.2(8)B, 12.2(8)S

CSCin01252

Microcode fix needed for PA-T3, PA-E3

PA-H, PA-T3, PA-E3

12.1(15), 12.1(12)E, 12.2(10), 12.2(11)T, 12.2(11)S

CSCdt40038

PA-8T after some time puts ports 4-7 in up-down

PA-4T+, PA-8T

12.0(20)S, 12.0(20)SP,12.0(20)ST, 12.1(12), 12.1(11)E, 12.1.(11)EC, 12.2(6), 12.2(6)T, 12.2(6)S, 12.2(8)B

CSCdv38171

PA-8T port flaps, after any config change, OIR only fix

PA-4T+, PA-8T

12.1(13), 12.1(11)E, 12.1(11)EC, 12.2(7), 12.2(7)T, 12.2(7)S, 12.2(8)B

DDTS

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For More Information

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