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Cisco BTS 10200 Softswitch

Field Notice: BTS 10200 Softswitch H3A Coring


Revised November 2, 2004

October 04, 2004


Products Affected

  • BTS 10200 Softswitch - 4.2.0

Problem Description

Deployed Customers using the BTS's H.323 protocol stack may experience an unexpected (H3A) process core that could result in a failover to the standby side.

Background

Recently, numerous H3A process cores have been reported by some Customers using the protocol in their solutions.

Problem Symptoms

The symptoms can be detected when the H3A process restarts. After five restarts within a one hour period the BTS will failover to the standby side.

Initial logs indicate the core can be triggered by heavy trunking overload and congestion on the gateway connections (CIC's). The overload and congestion may cause H323 messages to be fragmented across multiple TCP packets on the link between the BTS and the gateway. An error in the process of these fragmented packets may cause the H3A process to core. This is being addressed by defect CSCef80756.

Workaround/Solution

Customers operating on RLS 4.2.0 should contact their respective Account Representative.

Account Representatives and/or SE's supporting Customers on RLS 4.2.0 can download their respective fix by observing the following steps:

  1. http://bts-scm/ (registered customers only) Use your CCO login user name and password.

  2. Click on: Downloads Available (select "I agree" button if you agree to the terms), enter your CCO user name and password.

  3. Click on: BTS_04_02_00/

  4. Select the operating version:

    • 900-04.02.00.V09/

    • 900-04.02.00.V10/

  5. Click on: Patches/

  6. Click on: Files/

    • RLS 4.2.0v09 Customers must click on: BTS_04_02_00_V09_P07/. This will take you to the directory housing the patch, checksum and patch install procedure. (If applicable, you must observe and apply prerequisite patches.)

    • RLS 4.2.0v10 Customers must click on: BTS_04_02_00_V10_P08/. This will take you to the directory housing the patch, checksum and patch install procedure. (If applicable, you must observe and apply prerequisite patches.)

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS

Description

CSCef80756 (registered customers only)

H3a cores under capacity and link congestion

 

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:

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