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Cisco SCE 1000 Series Service Control Engine

Field Notice: FN - 63029 - SCA-BB 3.1.1 - MPLS/VPN Self Learning Support is Deprecated


January 7, 2008

NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.


Revision History

Revision

Date

Comment

1.0

07-JAN-2008

Initial Public Release

Products Affected

Products Affected

Comments

SCE SCAS BB - 3.0.3

SCE Service Control Application for BroadBand

SCE SCAS BB - 3.0.4

SCE Service Control Application for BroadBand

SCE SCAS BB - 3.0.5

SCE Service Control Application for BroadBand

SCE SCAS BB - 3.0.6

SCE Service Control Application for BroadBand

SCE SCAS BB - 3.1

SCE Service Control Application for BroadBand

SCE SCAS BB - 3.1.1

SCE Service Control Application for BroadBand

Problem Description

The MPLS/VPN self learning feature is not recommended for use with SCA-BB versions below 3.1.5.

Background

The MPLS/VPN self learning feature has been added into the SCA-BB solution as of version 3.0.3.

In version 3.1.5, major enhancements and fixes have been implemented, to the point where it is unadvisable to use older versions than 3.1.5 with MPLS/VPN self learning, and specifically not 3.1.0/3.1.1.

Problem Symptoms

A known defect, CSCsj68557, which exists in versions 3.1.0 and 3.1.1, causes the systemclassification in MPLS/VPN classification mode to be inaccurate along over time.

In addition, another known defect in the upgrade process of MPLS/VPN subscribers for the Subscriber Manager prevents easy upgrade to version 3.1.5 from older versions.

Moreover, due to the improved support for multiple subscribers per MPLS/VPN, introduced in version 3.1.5, the MPLS/VPN based subscribers support is not fully backward compatible, requiring the customer to manually edit the Subscriber Manager configuration files.

All these issues, combined with the major added value in the MPLS/VPN support in version 3.1.5, make it counterproductive for a customer/user to use earlier versions for MPLS/VPN self learning support.

Workaround/Solution

Solution

Use versions 3.1.5 or later for MPLS/VPN self learning support.

Workaround

None

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

CSCsj68557 (registered customers only)

MPLS/VPN auto-learn validity checks not working properly

CSCsg85546 (registered customers only)

TCP Learning doesn't close flows that start with SYN-ACK

CSCsl70206 (registered customers only)

3.1.5 SM upgrade - MPLS VPN

For More Information

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